FDUS / Fidus Investment Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Fidus Investment Corporation
US ˙ NasdaqGS ˙ US3165001070

Mga Batayang Estadistika
LEI 549300836CRWCROFBC02
CIK 1513363
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Fidus Investment Corporation
SEC Filings (Chronological Order)
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August 7, 2025 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2025 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.57 per Share for Third Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.14 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2025 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.57 per Share for Third Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.14 Per Share EVANSTON, Ill., August 7, 2025 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing s

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 7, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emplo

August 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inves

August 7, 2025 424B3

Up to $300,000,000 Common Stock Supplement No. 4, dated August 7, 2025 Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024

Filed Pursuant to Rule 424(b)(3) File No. 333-277540 Up to $300,000,000 Common Stock Supplement No. 4, dated August 7, 2025 to Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated May 9, 2024 (the “ATM Prospectus Supplement”), and the accompanying prospectus, dated Ma

June 12, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 11, 2025 Fidus Investment Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 11, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commiss

May 8, 2025 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2025 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.54 per Share for Second Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.11 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2025 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.54 per Share for Second Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.11 Per Share EVANSTON, Ill., May 8, 2025 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solu

May 8, 2025 424B3

Filed Pursuant to Rule 424(b)(3) File No. 333-277540 Up to $300,000,000 Common Stock Supplement No. 3, dated May 8, 2025 to Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024 This supplement amends, supplements or modifies certain

Filed Pursuant to Rule 424(b)(3) File No. 333-277540 Up to $300,000,000 Common Stock Supplement No. 3, dated May 8, 2025 to Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated May 9, 2024 (the “ATM Prospectus Supplement”), and the accompanying prospectus, dated May 8

May 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inve

May 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 8, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employer

April 17, 2025 EX-99.1

NOTICE OF REDEMPTION TO THE HOLDERS OF THE 4.75% Notes due 2026 of Fidus Investment Corporation (CUSIP No. 316500 AB3)* Redemption Date: May 21, 2025

EX-99.1 Exhibit 99.1 NOTICE OF REDEMPTION TO THE HOLDERS OF THE 4.75% Notes due 2026 of Fidus Investment Corporation (CUSIP No. 316500 AB3)* Redemption Date: May 21, 2025 NOTICE IS HEREBY GIVEN, pursuant to Section 1104 of the indenture, dated as of February 2, 2018 (the “Base Indenture”), by and between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank Trust Comp

April 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 17, 2025 Fidus Investment C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 17, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commis

March 21, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒          Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

March 19, 2025 EX-4.2

Sixth Supplemental Indenture, dated as of March 19, 2025, by and between Fidus Investment Corporation and U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association), as trustee (Filed as Exhibit 4.2 to the Registrant’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on March 19, 2025 and incorporated herein by reference).

Exhibit 4.2 SIXTH SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee Dated as of March 19, 2025 THIS SIXTH SUPPLEMENTAL INDENTURE (this “Sixth Supplemental Indenture”), dated as of March 19, 2025 is between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank Trust Company, National Association (a

March 19, 2025 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 19, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commis

March 14, 2025 424B2

Filed Pursuant to Rule 424(b)(2) Registration No. 333-277540 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 8, 2024) $100,000,000 6.750% Notes due 2030 We are an externally managed, closed-end, non-diversified management investment company that has e

Filed Pursuant to Rule 424(b)(2) Registration No. 333-277540 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 8, 2024) $100,000,000 6.750% Notes due 2030 We are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). Our investment

March 13, 2025 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 12, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commis

March 13, 2025 EX-1.1

Underwriting Agreement, dated as of March 12, 2025, by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and Raymond James & Associates, Inc., as representative of the several underwriters named in Exhibit A thereto

Exhibit 1.1 Execution Version FIDUS INVESTMENT CORPORATION $100,000,000 6.750% Notes due 2030 UNDERWRITING AGREEMENT March 12, 2025 Raymond James & Associates, Inc. As representative of the several underwriters named in Exhibit A c/o Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg, Florida 33716 Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the “C

March 12, 2025 FWP

FIDUS INVESTMENT CORPORATION 6.750% Notes due 2030 PRICING TERM SHEET March 12, 2025

FWP Filed pursuant to Rule 433 Issuer Free Writing Prospectus dated March 12, 2025 Relating to the Preliminary Prospectus Supplement dated March 12, 2025 and Prospectus dated May 8, 2024 Registration No.

March 12, 2025 424B2

SUBJECT TO COMPLETION, DATED MARCH 12, 2025

Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-277540 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been filed with and declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer

March 6, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 6, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employ

March 6, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒          Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement.

March 6, 2025 424B3

Up to $300,000,000 Common Stock Supplement No. 2, dated March 6, 2025 Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024

Filed Pursuant to Rule 424(b)(3) File No. 333-277540 Up to $300,000,000 Common Stock Supplement No. 2, dated March 6, 2025 to Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated May 9, 2024 (the “ATM Prospectus Supplement”), and the accompanying prospectus, dated May

March 6, 2025 EX-21.1

List of Subsidiaries.*

Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction FCDS Corp. Delaware FCMH Equity Corp. Delaware Fidus Capital GP, LLC Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Mezzanine Capital IV, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

March 6, 2025 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.54 per Share for First Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.11 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.54 per Share for First Quarter 2025 Base Dividend of $0.43 and Supplemental Dividend of $0.11 Per Share EVANSTON, Ill., March 6, 2025 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equit

March 6, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 814-00861 FIDUS INVESTME

February 18, 2025 EX-99.1

FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2025 DIVIDEND

Exhibit 99.1 FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2025 DIVIDEND EVANSTON, Ill., February 18, 2025– Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”) today announced that its Board of Directors on February 18, 2025 declared a base dividend of $0.43 per share and a supplemental dividend of $0.11 per share for the first quarter of 2025. The Company’s dividends will

February 18, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 18, 2025 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Em

October 31, 2024 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.61 per Share for Fourth Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.18 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.61 per Share for Fourth Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.18 Per Share EVANSTON, Ill., October 31, 2024 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing

October 31, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 31, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emp

October 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus

October 4, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 1, 2024 Fidus Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 1, 2024 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State or Other Jurisdiction of Incorporation) (Commi

August 1, 2024 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.57 per Share for Third Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.14 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.57 per Share for Third Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.14 Per Share EVANSTON, Ill., August 1, 2024 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing s

August 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inves

August 1, 2024 424B3

Up to $300,000,000 Common Stock Supplement No. 1, dated August 1, 2024 Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024

Filed Pursuant to Rule 424(b)(3) File No. 333-277540 Up to $300,000,000 Common Stock Supplement No. 1, dated August 1, 2024 to Prospectus, dated May 8, 2024 Prospectus Supplement, dated May 9, 2024 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated May 9, 2024 (the “ATM Prospectus Supplement”), and the accompanying prospectus, dated Ma

August 1, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 1, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emplo

July 26, 2024 8-K

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 25, 2024 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State or Other Jurisdiction of Incorporation) (Commiss

July 26, 2024 EX-10.1

Incremental Commitment Agreement, dated as of July 25, 2024, by and among Fidus Investment Corporation, as borrower, the subsidiary guarantors party thereto, the increasing lenders party thereto, and ING Capital LLC, as administrative agent.

Exhibit 10.1 INCREMENTAL COMMITMENT AGREEMENT dated as of July 25, 2024, made by FIDUS INVESTMENT CORPORATION, as Borrower and THE SUBSIDIARY GUARANTORS PARTY HERETO each as a Subsidiary Guarantor and THE INCREASING LENDERS PARTY HERETO, each as an Increasing Lender and ING CAPITAL LLC as Administrative Agent relating to the AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT dated as of

June 14, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 12, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commiss

May 9, 2024 424B2

Filed Pursuant to Rule 424(b)(2) Registration No. 333-277540 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 8, 2024) Up to $300,000,000 FIDUS INVESTMENT CORPORATION Common stock We are an externally managed, closed-end, non-diversified management inv

Filed Pursuant to Rule 424(b)(2) Registration No. 333-277540 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 8, 2024) Up to $300,000,000 FIDUS INVESTMENT CORPORATION Common stock We are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “

May 8, 2024 CORRESP

1

CORRESP Eversheds Sutherland (US) LLP 700 Sixth Street, NW, Suite 700 Washington, DC 20001-3980 May 8, 2024 VIA EDGAR Samantha A.

May 2, 2024 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.59 per Share for Second Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.16 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2024 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.59 per Share for Second Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.16 Per Share EVANSTON, Ill., May 2, 2024 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solu

May 2, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 2, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employer

May 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inve

March 22, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒          Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

February 29, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 29, 2024 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State or Other Jurisdiction of Incorporation) (Com

February 29, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 29, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Em

February 29, 2024 EX-97.1

Compensation Recoupment Policy.*

Exhibit 97.1 FIDUS INVESTMENT CORPORATION COMPENSATION RECOUPMENT POLICY The Board of Directors of Fidus Investment Corporation has adopted the following Compensation Recoupment Policy effective as of December 1, 2023. Purpose It is the intention of the Board that this Compensation Recoupment Policy be interpreted and administered in a manner consistent with applicable laws and regulations and Sec

February 29, 2024 EX-10.1

Amendment No. 2, dated February 29, 2024, to Equity Distribution Agreement by and among Fidus Investment Corporation and Fidus Investment Advisors, LLC, on the one hand, and Raymond James & Associates, Inc. and B. Riley Securities, Inc., on the other hand

Exhibit 10.1 FIDUS INVESTMENT CORPORATION (a Maryland Corporation) Common Stock, Par Value $0.001 Per Share AMENDMENT NO. 2 TO EQUITY DISTRIBUTION AGREEMENT Dated as of February 29, 2024 This Amendment No. 2, dated February 29, 2024 (the “Amendment”), is to the Equity Distribution Agreement, dated November 10, 2022, as amended by Amendment No. 1 to Equity Distribution Agreement, dated August 11, 2

February 29, 2024 EX-21.1

List of Subsidiaries.*

Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction FCDS Corp. Delaware FCMH Equity Corp. Delaware Fidus Capital GP, LLC Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Mezzanine Capital IV, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 29, 2024 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.65 per Share for First Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.22 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.65 per Share for First Quarter 2024 Base Dividend of $0.43 and Supplemental Dividend of $0.22 Per Share EVANSTON, Ill., February 29, 2024 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and e

February 29, 2024 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒          Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement.

February 29, 2024 EX-14.1

Insider Trading Policy and Procedures included in Joint Code of Ethics (attached as Exhibit 14.1 hereto).

Exhibit 14.1 JOINT CODE OF ETHICS FOR FIDUS INVESTMENT CORPORATION, FIDUS MEZZANINE CAPITAL, L.P., AND FIDUS INVESTMENT ADVISORS, LLC SECTION I - STATEMENT OF GENERAL FIDUCIARY PRINCIPLES This Joint Code of Ethics (the “Code”) has been adopted by each of Fidus Investment Corporation (the “Corporation”), Fidus Mezzanine Capital, L.P. (the “Fund”) and Fidus Investment Advisors, LLC, the Corporation’

February 29, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 814-00861 FIDUS INVESTME

February 29, 2024 424B3

Up to $300,000,000 Common Stock Supplement No. 6, dated February 29, 2024 Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $300,000,000 Common Stock Supplement No. 6, dated February 29, 2024 to Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”), and the accompanying prosp

February 14, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 13, 2024 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Em

February 14, 2024 EX-99.1

FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2024 DIVIDEND

Exhibit 99.1 FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2024 DIVIDEND EVANSTON, Ill., February 14, 2024– Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”) today announced that its Board of Directors on February 13, 2024 declared a base dividend of $0.43 per share and a supplemental dividend of $0.22 per share for the first quarter of 2024. The Company’s dividends will

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus

November 2, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 2, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emp

November 2, 2023 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.80 Per Share for Fourth Quarter 2023 Base Dividend of $0.43, Supplemental Dividend of $0.27, and Special Dividend of $0.10 P

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.80 Per Share for Fourth Quarter 2023 Base Dividend of $0.43, Supplemental Dividend of $0.27, and Special Dividend of $0.10 Per Share EVANSTON, Ill., November 2, 2023 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customiz

November 2, 2023 424B3

Up to $150,000,000 Common Stock Supplement No. 5, dated November 2, 2023 Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $150,000,000 Common Stock Supplement No. 5, dated November 2, 2023 to Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”) and the accompanying prospec

August 11, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 11, 2023 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State or Other Jurisdiction of Incorporation) (Commi

August 11, 2023 424B3

Up to $150,000,000 Common Stock Supplement No. 4, dated August 11, 2023 Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $150,000,000 Common Stock Supplement No. 4, dated August 11, 2023 to Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”), and the accompanying prospec

August 11, 2023 EX-10.1

Amendment No. 1, dated August 11, 2023, to Equity Distribution Agreement by and among Fidus Investment Corporation and Fidus Investment Advisors, LLC, on the one hand, and Raymond James & Associates, Inc. and B. Riley Securities, Inc., on the other hand

EX-10.1 Exhibit 10.1 FIDUS INVESTMENT CORPORATION (a Maryland Corporation) Common Stock, Par Value $0.001 Per Share AMENDMENT NO. 1 TO EQUITY DISTRIBUTION AGREEMENT Dated as of August 11, 2023 This Amendment No. 1, dated August 11, 2023 (the “Amendment”), is to the Equity Distribution Agreement, dated November 10, 2022 (the “Equity Distribution Agreement”), by and among Fidus Investment Corporatio

August 4, 2023 424B3

Up to $50,000,000 Common Stock Supplement No. 3, dated August 4, 2023 Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $50,000,000 Common Stock Supplement No. 3, dated August 4, 2023 to Prospectus, dated May 3, 2021 Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”) and the accompanying prospectus

August 3, 2023 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.72 Per Share for Third Quarter 2023 Base Dividend of $0.41, Supplemental Dividend of $0.21, and Special Dividend of $0.10 P

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.72 Per Share for Third Quarter 2023 Base Dividend of $0.41, Supplemental Dividend of $0.21, and Special Dividend of $0.10 Per Share EVANSTON, Ill., August 3, 2023 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized

August 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 3, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emplo

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inves

June 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 8, 2023 Fidus Investment Cor

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 8, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commissi

May 9, 2023 424B3

Up to $50,000,000 Common Stock Supplement No. 2, dated May 8, 2023 Prospectus, dated May 3, 2021 and Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $50,000,000 Common Stock Supplement No. 2, dated May 8, 2023 to Prospectus, dated May 3, 2021 and Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”) and the accompanying prospectu

May 4, 2023 EX-99

FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.70 Per Share for Second Quarter 2023 Base Dividend of $0.41, Supplemental Dividend of $0.19, and Special Dividend of $0.10 P

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2023 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.70 Per Share for Second Quarter 2023 Base Dividend of $0.41, Supplemental Dividend of $0.19, and Special Dividend of $0.10 Per Share EVANSTON, Ill., May 4, 2023 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized de

May 4, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 4, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employer

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT P

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inve

March 17, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

March 17, 2023 CORRESP

[Eversheds Sutherland (US) LLP Letterhead]

[Eversheds Sutherland (US) LLP Letterhead] March 17, 2023 VIA EDGAR Bernard Nolan, Esq.

March 2, 2023 EX-4

DESCRIPTION OF SECURITIES

Exhibit 4.8 DESCRIPTION OF SECURITIES As of December 31, 2022, Fidus Investment Corporation (“we,” “our,” “us,” or the “Company”) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): its common stock, par value $0.001 per share (“common stock”). The following description of the common stock is as of December 31, 2022 and b

March 2, 2023 EX-21

List of Subsidiaries.*

Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction FCDS Corp. Delaware FCMH Equity Corp. Delaware Fidus Capital GP, LLC Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

March 2, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 2, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employ

March 2, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 814-00861 FIDUS INVESTME

March 2, 2023 EX-99

FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.66 per Share for First Quarter 2023 Base Dividend Increased to $0.41 Per Share, Reflecting Improved Earnings

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Board of Directors Declared Total Dividends of $0.66 per Share for First Quarter 2023 Base Dividend Increased to $0.41 Per Share, Reflecting Improved Earnings Power of Fidus' Portfolio EVANSTON, Ill., March 2, 2023 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provid

March 2, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

PRE 14A 1 d408758dpre14a.htm PRE 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ P

March 2, 2023 424B3

Up to $50,000,000 Common Stock Supplement No. 1, dated March 2, 2023 Prospectus, dated May 3, 2021 and Prospectus Supplement, dated November 10, 2022

Filed Pursuant to Rule 424(b)(3) File No. 333-253525 Up to $50,000,000 Common Stock Supplement No. 1, dated March 2, 2023 to Prospectus, dated May 3, 2021 and Prospectus Supplement, dated November 10, 2022 This supplement amends, supplements or modifies certain information contained in the prospectus supplement, dated November 10, 2022 (the “ATM Prospectus Supplement”) and the accompany prospectus

February 21, 2023 EX-99

FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2023 DIVIDEND

Exhibit 99.1 FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2023 DIVIDEND EVANSTON, Ill., February 21, 2023– Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”) announced that its Board of Directors on February 15, 2023 declared a base dividend of $0.41 per share, a supplemental dividend of $0.15 per share, and a special dividend of $0.10 per share. The Company’s dividends w

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 15, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Em

January 31, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 31, 2023 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emp

January 31, 2023 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES DEEMED DISTRIBUTION OF $1.65 PER SHARE AND U.S. FEDERAL INCOME TAX TREATMENT OF 2022 DIVIDENDS

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES DEEMED DISTRIBUTION OF $1.65 PER SHARE AND U.S. FEDERAL INCOME TAX TREATMENT OF 2022 DIVIDENDS EVANSTON, Ill., January 31, 2023 – Fidus Investment Corporation (NASDAQ: FDUS) (“Fidus” or the “Company”), provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the United States, announced today

November 10, 2022 EX-10.1

Equity Distribution Agreement, dated November 10, 2022, by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC, on the one hand, and Raymond James & Associates, Inc. and B. Riley Securities, Inc. on the other hand (Filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on November 10, 2022 and incorporated herein by reference).

Exhibit 10.1 FIDUS INVESTMENT CORPORATION (a Maryland Corporation) Common Stock, Par Value $0.001 Per Share EQUITY DISTRIBUTION AGREEMENT Dated as of November 10, 2022 TABLE OF CONTENTS SECTION PAGE 1. Representations and Warranties by the Company 2 2. Representations and Warranties of the Adviser 11 3. Placements 13 4. Sale of Placement Securities by the Placement Agent 14 5. Suspension of Sales

November 10, 2022 424B2

FIDUS INVESTMENT CORPORATION Common stock

Filed Pursuant to Rule 424(b)(2) Registration No. 333-253525 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 3, 2021) $50,000,000 FIDUS INVESTMENT CORPORATION Common stock We are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (?BDC?) under the Investment Company Act of 1940, as amended (the ?1940 Ac

November 10, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 10, 2022 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State or Other Jurisdiction of Incorporation) (Com

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ☐ TRANSITION REPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus

November 3, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 3, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emp

November 3, 2022 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 and Supplemental Dividend of $0.15 Per Share for Fourth Quarter 2022 Board of Directors Declared Special Dividend of $0.10 Per Share for Fourth Quarter

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 and Supplemental Dividend of $0.15 Per Share for Fourth Quarter 2022 Board of Directors Declared Special Dividend of $0.10 Per Share for Fourth Quarter 2022 EVANSTON, Ill., November 3, 2022 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized

August 23, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 17, 2022 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Commi

August 23, 2022 EX-10.1

Amendment No. 2, dated as of August 17, 2022, to the Amended and Restated Senior Secured Revolving Credit Agreement, by and among the Company, the Lenders, and ING Capital LLC, as administrative agent for the Lenders (Filed as Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on August 23, 2022 and incorporated herein by reference).

Exhibit 10.1 AMENDMENT NO. 2 TO AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT This AMENDMENT NO. 2 TO AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT, dated as of August 17, 2022 (this ?Amendment?), is made with respect to the Amended and Restated Senior Secured Revolving Credit Agreement, dated as of April 24, 2019 (as amended , restated, supplemented or otherwise modi

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ☐ TRANSITION REPORT PU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inves

August 4, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 4, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emplo

August 4, 2022 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for Third and Fourth Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.07 Per Share for Third Quarter 2022 Board

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Second QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for Third and Fourth Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.07 Per Share for Third Quarter 2022 Board of Directors Declared Supplemental Dividend of at least $0.07 Per Share for Fourth Quarter 2022 EVANSTON, Ill., August 4, 2022 ? Fidus I

June 30, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 29, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commiss

June 30, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 29, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commiss

June 16, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

June 9, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

June 9, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 9, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commissi

May 5, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 5, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employer

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus Inve

May 5, 2022 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for Second Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.07 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES First QUARTER 2022 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for Second Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.07 Per Share EVANSTON, Ill., May 5, 2022 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized debt and equity financing solutions, primarily to

March 30, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

March 18, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

March 18, 2022 CORRESP

[Letterhead of Eversheds Sutherland (US) LLP] March 18, 2022

[Letterhead of Eversheds Sutherland (US) LLP] March 18, 2022 VIA EDGAR Mr. John Grzeskiewicz Division of Investment Management U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Re: Fidus Investment Corporation Preliminary Proxy Statement on Schedule 14A filed March 3, 2022 File No. 814-00861 Dear Mr. Grzeskiewicz: On behalf of Fidus Investment Corporation (the “Compan

March 3, 2022 EX-4.8

Description of Securities (Filed as Exhibit 4.8 to the Registrant’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission on March 3, 2022 and incorporated herein by reference).

Exhibit 4.8 DESCRIPTION OF SECURITIES As of December 31, 2021, Fidus Investment Corporation (?we,? ?our,? ?us,? or the ?Company?) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): its common stock, par value $0.001 per share (?common stock?). The following description of the common stock is as of December 31, 2021 and b

March 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 3, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Employ

March 3, 2022 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

March 3, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 814-00861 FIDUS INVESTME

March 3, 2022 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for First Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.17 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Fourth QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Base Dividend of $0.36 Per Share Declared for First Quarter 2022 Board of Directors Declared Supplemental Dividend of $0.17 Per Share EVANSTON, Ill., March 3, 2022 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized debt and equity financing solution

March 3, 2022 EX-21.1

List of Subsidiaries.*

Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction BBRSS Blocker Corp. Delaware FCDS Corp. Delaware FCMH Equity Corp. Delaware Fidus Capital GP, LLC Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 16, 2022 EX-99.1

FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2022 DIVIDEND

Exhibit 99.1 FIDUS INVESTMENT CORPORATION DECLARES FIRST QUARTER 2022 DIVIDEND EVANSTON, Ill., February 16, 2022 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?) today announced that its Board of Directors on February 15, 2022 declared a base dividend of $0.36 per share and a supplemental dividend of $0.17 per share using a revised formula for the first quarter of 2022. The

February 16, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 15, 2022 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Com

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814-00861 Fidus

November 4, 2021 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.32 and Supplemental Dividend of $0.04 Declared for Third Quarter Board of Directors Declared Special Dividend of $0.05 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES Third QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.32 and Supplemental Dividend of $0.04 Declared for Third Quarter Board of Directors Declared Special Dividend of $0.05 Per Share EVANSTON, Ill., November 4, 2021 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized debt and equity financing solut

November 4, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 4, 2021 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Emp

October 8, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 8, 2021 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Commi

October 8, 2021 EX-4.1

Fifth Supplemental Indenture, dated as of October 8, 2021, between Fidus Investment Corporation and U.S. Bank National Association, as trustee.

Exhibit 4.1 FIFTH SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of October 8, 2021 THIS FIFTH SUPPLEMENTAL INDENTURE (this ?Fifth Supplemental Indenture?), dated as of October 8, 2021, is between Fidus Investment Corporation, a Maryland corporation (the ?Company?), and U.S. Bank National Association, as trustee (the ?Trustee?).

October 4, 2021 EX-99.1

NOTICE OF REDEMPTION TO THE HOLDERS OF THE 6.000% Notes due 2024 of Fidus Investment Corporation (CUSIP No. 316500 305)* Redemption Date: November 2, 2021

Exhibit 99.1 NOTICE OF REDEMPTION TO THE HOLDERS OF THE 6.000% Notes due 2024 of Fidus Investment Corporation (CUSIP No. 316500 305)* Redemption Date: November 2, 2021 NOTICE IS HEREBY GIVEN, pursuant to Section 1104 of the Indenture dated as of February 2, 2018 (the ?Base Indenture?), between Fidus Investment Corporation, a Maryland corporation (the ?Company?), and U.S. Bank National Association

October 4, 2021 EX-1.1

Underwriting Agreement, dated as of October 1, 2021, by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and Raymond James & Associates, Inc.

Exhibit 1.1 Execution Version FIDUS INVESTMENT CORPORATION $125,000,000 3.50% Notes due 2026 UNDERWRITING AGREEMENT October 1, 2021 Raymond James & Associates, Inc. As representative of the several underwriters named in Exhibit A c/o Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg, Florida 33716 Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the ?C

October 4, 2021 424B2

3.50% Notes due 2026

Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-253525 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 3, 2021) $125,000,000 3.50% Notes due 2026 We are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (?BDC?) under the Investment Company Act of 1940, as amended (the ?1940 Act?

October 4, 2021 EX-99.2

NOTICE OF REDEMPTION TO THE HOLDERS OF THE 5.375% Notes due 2024 of Fidus Investment Corporation (CUSIP No. 316500 404)* Redemption Date: November 2, 2021

Exhibit 99.2 NOTICE OF REDEMPTION TO THE HOLDERS OF THE 5.375% Notes due 2024 of Fidus Investment Corporation (CUSIP No. 316500 404)* Redemption Date: November 2, 2021 NOTICE IS HEREBY GIVEN, pursuant to Section 1104 of the Indenture dated as of February 2, 2018 (the ?Base Indenture?), between Fidus Investment Corporation, a Maryland corporation (the ?Company?), and U.S. Bank National Association

October 4, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 1, 2021 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Commi

October 1, 2021 424B2

SUBJECT TO COMPLETION, DATED OCTOBER 1, 2021

Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-223350 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been filed with and declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer

October 1, 2021 FWP

FIDUS INVESTMENT CORPORATION 3.50% Notes due 2026 PRICING TERM SHEET October 1, 2021

Filed Pursuant to Rule 433 Issuer Free Writing Prospectus dated October 1, 2021 Relating to Preliminary Prospectus Supplement dated October 1, 2021 and Prospectus dated May 3, 2021 Registration No.

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 814

August 5, 2021 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.32 and Supplemental Dividend of $0.06 Declared for Third Quarter Board of Directors Declared Special Dividend of $0.04 Per Share

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.32 and Supplemental Dividend of $0.06 Declared for Third Quarter Board of Directors Declared Special Dividend of $0.04 Per Share EVANSTON, Ill., August 5, 2021 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized debt and equity financing soluti

August 5, 2021 EX-10.1

Form of Indemnification Agreement between Fidus Investment Corporation and each officer and director of Fidus Investment Corporation (Filed as Exhibit 10.1 of the Registrant’s quarterly report on Form 10-Q, filed with the U.S. Securities and Exchange Commission on August 5, 2021).

Exhibit 10.1 INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (this ?Agreement?) is made and entered into as of August , 2021 (the ?Effective Date?), by and between Fidus Investment Corporation, a Maryland corporation (the ?Company?), and (?Indemnitee?). For the avoidance of doubt, in addition to memorializing the terms of the Indemnitee?s indemnification rights, this Agreement is also int

August 5, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 5, 2021 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commis

July 15, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 14, 2021 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commiss

July 1, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of

May 7, 2021 CORRESP

[Letterhead of Eversheds Sutherland (US) LLP] May 7, 2021

[Letterhead of Eversheds Sutherland (US) LLP] May 7, 2021 VIA EDGAR Ms. Samantha Brutlag Division of Investment Management U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Re: Fidus Investment Corporation Preliminary Proxy Statement on Schedule 14A filed April 16, 2021 File No. 814-00861 Dear Ms. Brutlag: On behalf of Fidus Investment Corporation (the ?Company?), set

May 7, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

May 6, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 81

May 6, 2021 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.31 and Supplemental Dividend of $0.08 Per Share Declared for Second Quarter 2021

Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2021 FINANCIAL RESULTS Base Dividend of $0.31 and Supplemental Dividend of $0.08 Per Share Declared for Second Quarter 2021 EVANSTON, Ill., May 6, 2021 ? Fidus Investment Corporation (NASDAQ:FDUS) (?Fidus? or the ?Company?), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies base

May 6, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 6, 2021 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commissio

April 30, 2021 CORRESP

[Letterhead of Eversheds Sutherland (US) LLP] April 30, 2021

[Letterhead of Eversheds Sutherland (US) LLP] April 30, 2021 VIA EDGAR Christina DiAngelo Fettig, Senior Staff Accountant Division of Investment Management U.

April 16, 2021 PRE 14A

- PRE 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

February 25, 2021 EX-4.12

Exhibit 4.12

Exhibit 4.12 DESCRIPTION OF SECURITIES As of December 31, 2020, Fidus Investment Corporation (?we,? ?our,? ?us,? or the ?Company?) has four classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): (i) its common stock, par value $0.001 per share (?common stock?); (ii) its 5.875% Notes due 2023 (the ?2023 Notes?); (iii) its 6.000% No

February 25, 2021 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 814-00

February 25, 2021 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.31 Per Share Declared for First Quarter 2021 Board of Directors Declared Supplemental Cash Dividend of $0.07 Per Share

EX-99.1 2 d143748dex991.htm EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.31 Per Share Declared for First Quarter 2021 Board of Directors Declared Supplemental Cash Dividend of $0.07 Per Share EVANSTON, Ill., February 25, 2021 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a

February 25, 2021 EX-21.1

List of Subsidiaries.*

Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction BBRSS Blocker Corp. Delaware FCDS Corp. Delaware FCMH Equity Corp. Delaware Fidus Capital GP, LLC Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 25, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 25, 2021 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Com

December 23, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 23, 2020 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation)

December 23, 2020 8-K

Other Events - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 23, 2020 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation)

December 23, 2020 EX-4.1

Fourth Supplemental Indenture dated as of December 23, 2020 between Fidus Investment Corporation and U.S. Bank National Association, as trustee (Filed as Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on December 23, 2020 and incorporated herein by reference).

EX-4.1 Exhibit 4.1 FOURTH SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of December 23, 2020 THIS FOURTH SUPPLEMENTAL INDENTURE (this “Fourth Supplemental Indenture”), dated as of December 23, 2020, is between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank National Association, as trustee (th

December 22, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 16, 2020 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation)

December 22, 2020 EX-1.1

Underwriting Agreement, dated as of December 16, 2020, by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and Raymond James & Associates, Inc.

EX-1.1 Exhibit 1.1 FIDUS INVESTMENT CORPORATION $125,000,000 4.75% Notes due 2026 UNDERWRITING AGREEMENT December 16, 2020 Raymond James & Associates, Inc. As representative of the several underwriters named in Exhibit A c/o Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg, Florida 33716 Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the “Company”),

December 18, 2020 8-K

Other Events - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 17, 2020 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation)

December 17, 2020 424B2

4.75% Notes due 2026

424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-223350 PROSPECTUS SUPPLEMENT (To Prospectus Dated May 1, 2019) $125,000,000 4.75% Notes due 2026 We are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “194

December 16, 2020 424B2

SUBJECT TO COMPLETION, DATED DECEMBER 16, 2020

424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-223350 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been filed with and declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an

December 16, 2020 FWP

FIDUS INVESTMENT CORPORATION 4.75% Notes due 2026 PRICING TERM SHEET December 16, 2020

FWP Filed Pursuant to Rule 433 Issuer Free Writing Prospectus dated December 16, 2020 Relating to Preliminary Prospectus Supplement dated December 16, 2020 and Prospectus dated May 1, 2019 Registration No.

October 29, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 29, 2020 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (

October 29, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 29, 2020 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Fourth Quarter 2020 Board of Directors Declared Supplemental Cash Dividend of $0.04 Per Share

EX-99.1 2 d99379dex991.htm EX-99.1 EXHIBIT 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Fourth Quarter 2020 Board of Directors Declared Supplemental Cash Dividend of $0.04 Per Share EVANSTON, Ill., October 29, 2020 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of cus

August 6, 2020 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Third Quarter 2020

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Third Quarter 2020 EVANSTON, Ill., August 6, 2020 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Un

August 6, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 6, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 6, 2020 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Co

June 30, 2020 EX-10.1

Amendment No. 1, dated June 26, 2020, to the Amended & Restated Senior Secured Revolving Credit Agreement dated April 24, 2019, by and among the Company, as borrower, the subsidiary guarantors party thereto, ING Capital LLC, as administrative agent, and the lenders party thereto (Filed as Exhibit 10.1 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on June 29, 2020 and incorporated herein by reference).

EX-10.1 2 d15014dex101.htm EX-10.1 Exhibit 10.1 Execution Version AMENDMENT NO. 1 TO AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT This AMENDMENT NO. 1 TO AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT, dated as of June 26, 2020 (this “Amendment”), is made with respect to the Amended and Restated Senior Secured Revolving Credit Agreement, dated as of April 24, 2019 (as

June 30, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 26, 2020 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Com

June 5, 2020 8-K

Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 4, 2020 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Comm

May 18, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

April 30, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 30, 2020 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Co

April 30, 2020 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 30, 2020 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Second Quarter 2020

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2020 FINANCIAL RESULTS Regular Quarterly Dividend of $0.30 Per Share Declared for Second Quarter 2020 EVANSTON, Ill., April 30, 2020 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Un

March 18, 2020 CORRESP

-

CORRESP Eversheds Sutherland (US) LLP 700 Sixth Street, NW, Suite 700 Washington, DC 20001-3980 D: +1 202.

March 18, 2020 DEF 14A

Schedule 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

March 17, 2020 EX-99.N.3

Consent of Independent Registered Public Accounting Firm

EX-99.N.3 Exhibit (n)(3) Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in Registration Statement (No. 333-223350) on Form N-2 of Fidus Investment Corporation of our reports dated February 27, 2020, relating to the consolidated statements of assets and liabilities, including the consolidated schedules of investments, as of December 31, 2019 an

March 17, 2020 POS EX

FDUS / Fidus Investment Corporation POS EX - - POS EX

POS EX Table of Contents Securities Act File No. 333-223350 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☒ Pre-Effective Amendment No. ☐ Post-Effective Amendment No. 4 ☒ FIDUS INVESTMENT CORPORATION (Exact Name of Registrant as Specified in Charter) 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201

February 27, 2020 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2020

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2020 EVANSTON, Ill., February 27, 2020 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companie

February 27, 2020 EX-21.1

List of Subsidiaries.*

EX-21.1 Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction BBRSS Blocker Corp. Delaware FCDS Corp. Delaware FCMGI, Inc. Delaware FCMH Equity Corp. Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 27, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 27, 2020 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation)

February 27, 2020 10-K

FDUS / Fidus Investment Corporation 10-K - Annual Report - 10-K

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 27, 2020 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

February 27, 2020 EX-4.10

Description of Securities.*

EX-4.10 Exhibit 4.10 DESCRIPTION OF SECURITIES Capitalized terms used but not defined herein shall have the meaning ascribed to them in the Annual Report on Form 10-K to which this Description of Securities is an exhibit. A. Common Stock, $0.001 par value per share The authorized capital stock of Fidus Investment Corporation (the “Company,” “we,” “our” or “us”) consists of 100,000,000 shares of co

October 31, 2019 10-Q

FDUS / Fidus Investment Corporation 10-Q - Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 31, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 31, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (

October 31, 2019 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Fourth Quarter 2019 Board of Directors Declared Special Cash Dividend of $0.04 Per Share

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Fourth Quarter 2019 Board of Directors Declared Special Cash Dividend of $0.04 Per Share EVANSTON, Ill., October 31, 2019 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financin

October 16, 2019 8-A12B

Form 8-A

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) or (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 27-5017321 (Jurisdiction of Incorporation or Organization) (IRS Employer Identification No.) 1603

October 16, 2019 EX-4.2

Third Supplemental Indenture dated as of October 16, 2019, between Fidus Investment Corporation and U.S. Bank National Association, as trustee (Filed as Exhibit 4.2 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on October 16, 2019 and incorporated herein by reference).

EX-4.2 Exhibit 4.2 THIRD SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of October 16, 2019 THIS THIRD SUPPLEMENTAL INDENTURE (this “Third Supplemental Indenture”), dated as of October 16, 2019, is between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank National Association, as trustee (the “Tr

October 16, 2019 EX-1.1

Underwriting Agreement dated October 10, 2019 by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and the Underwriters named therein (Filed as Exhibit 1.1 to the Registrant’s current report on Form 8-K (File No. 814-00861) filed with the Securities and Exchange Commission on October 16, 2019 and incorporated herein by reference).

EX-1.1 Exhibit 1.1 FIDUS INVESTMENT CORPORATION (a Maryland Corporation) $55,000,000 5.375% Notes due 2024 UNDERWRITING AGREEMENT October 10, 2019 Keefe, Bruyette & Woods, Inc. 787 Seventh Avenue, 5th Floor New York, New York 10019 As Representative of the several Underwriters named in Schedule A Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the “Company”), and Fidus

October 16, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 10, 2019 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (

October 10, 2019 8-K

Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 10, 2019 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (

August 1, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 1, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Co

August 1, 2019 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Third Quarter 2019

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Third Quarter 2019 EVANSTON, Ill., August 1, 2019 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Un

August 1, 2019 10-Q

FDUS / Fidus Investment Corporation 10-Q - Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 20, 2019 8-K

Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 19, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Com

June 7, 2019 DEFA14A

FDUS / Fidus Investment Corporation DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, fo

May 22, 2019 DEFA14A

FDUS / Fidus Investment Corporation DEFA14A - - DEFA14A

DEFA14A SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☒ Definitive Additional Materials ☐ Soliciting Material Pursuant to Section 240.

May 6, 2019 DEFA14A

FDUS / Fidus Investment Corporation DEFA14A DEFA14A

DEFA14A SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☒ Definitive Additional Materials ☐ Soliciting Material Pursuant to Section 240.

May 2, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 2, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Commi

May 2, 2019 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Second Quarter 2019

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2019 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Second Quarter 2019 EVANSTON, Ill., May 2, 2019 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Unite

May 2, 2019 10-Q

FDUS / Fidus Investment Corporation 10-Q Quarterly Report 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 29, 2019 EX-99.N(1)

Consent of Independent Registered Public Accounting Firm

EX-99.N(1) Exhibit n(1) Consent of Independent Registered Public Accounting Firm We consent to the use in this Post-Effective Amendment No. 3 to the Registration Statement (No. 333-223350) on Form N-2 of Fidus Investment Corporation and Subsidiaries (collectively, the Company) of our reports dated February 28, 2019, relating to the consolidated financial statements, the senior securities table and

April 29, 2019 EX-99.N(2)

Report of Independent Registered Public Accounting Firm

EX-99.N(2) Exhibit (n)(2) Report of Independent Registered Public Accounting Firm Board of Directors and Stockholders Fidus Investment Corporation and Subsidiaries Our audits of the consolidated financial statements and internal control over financial reporting referred to in our report dated February 28, 2019, (appearing in the accompanying registration statement on Form N-2) also included an aud

April 29, 2019 POS 8C

FDUS / Fidus Investment Corporation POS 8C POS 8C

POS 8C Table of Contents Securities Act File No. 333-223350 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☐ Pre-Effective Amendment No. ☐ Post-Effective Amendment No. 3 ☒ FIDUS INVESTMENT CORPORATION (Exact Name of Registrant as Specified in Charter) 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201

April 29, 2019 CORRESP

FDUS / Fidus Investment Corporation CORRESP - -

CORRESP Eversheds Sutherland (US) LLP 700 Sixth Street, NW, Suite 700 Washington, DC 20001-3980 D: +1 202.

April 24, 2019 EX-10.2

Amended and Restated Guarantee, Pledge and Security Agreement, dated as of April 24, 2019, by and among the Company, as borrower, the subsidiary guarantors party thereto, ING Capital LLC, as revolving administrative agent, and ING Capital LLC, as collateral agent (Filed as Exhibit 10.2 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on April 24, 2019 and incorporated herein by reference).

EX-10.2 3 d737015dex102.htm EX-10.2 Exhibit 10.2 EXECUTION VERSION AMENDED AND RESTATED GUARANTEE, PLEDGE AND SECURITY AGREEMENT dated as of April 24, 2019 among FIDUS INVESTMENT CORPORATION, as Borrower, the SUBSIDIARY GUARANTORS party hereto, ING CAPITAL LLC, as Revolving Administrative Agent for the Revolving Lenders, each FINANCING AGENT and DESIGNATED INDEBTEDNESS HOLDER party hereto and ING

April 24, 2019 EX-10.1

Amended & Restated Senior Secured Revolving Credit Agreement, dated as of April 24, 2019, by and among the Company, as borrower, the lenders party thereto, and ING Capital LLC, as administrative agent (Filed as Exhibit 10.1 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on April 24, 2019 and incorporated herein by reference).

EX-10.1 Exhibit 10.1 EXECUTION VERSION AMENDED & RESTATED SENIOR SECURED REVOLVING CREDIT AGREEMENT dated as of April 24, 2019 among FIDUS INVESTMENT CORPORATION, as Borrower, The Lenders Party Hereto and ING CAPITAL LLC as Administrative Agent, Arranger and Bookrunner TABLE OF CONTENTS Page ARTICLE I DEFINITIONS SECTION 1.01. Defined Terms 1 SECTION 1.02. Classification of Loans and Borrowings 32

April 24, 2019 EX-99.1

Fidus Investment Corporation Announces Amendment to Revolving Credit Facility: Increased Facility Size, Improved Pricing and Extended Maturity

EX-99.1 Exhibit 99.1 Fidus Investment Corporation Announces Amendment to Revolving Credit Facility: Increased Facility Size, Improved Pricing and Extended Maturity EVANSTON, Ill., April 24, 2019 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”) today announced the closing of an Amended & Restated Senior Secured Revolving Credit Agreement (the “Credit Facility”) led by ING Cap

April 24, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 24, 2019 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Co

March 26, 2019 DEF 14A

FDUS / Fidus Investment Corporation DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

March 25, 2019 CORRESP

FDUS / Fidus Investment Corporation CORRESP - -

CORRESP Eversheds Sutherland (US) LLP 700 Sixth Street, NW, Suite 700 Washington, DC 20001-3980 D: +1 202.

March 8, 2019 PRE 14A

FDUS / Fidus Investment Corporation PRE 14A

PRE 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement.

March 8, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 7, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Com

February 28, 2019 EX-99.N(2)

Report of Independent Registered Public Accounting Firm

EX-99.N(2) Exhibit (n)(2) Report of Independent Registered Public Accounting Firm Board of Directors and Stockholders Fidus Investment Corporation and Subsidiaries Our audits of the consolidated financial statements and internal control over financial reporting referred to in our report dated February 28, 2019, (appearing in the accompanying registration statement on Form N-2) also included an aud

February 28, 2019 POS 8C

FDUS / Fidus Investment Corporation POS 8C

POS 8C Table of Contents Securities Act File No. 333-223350 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☐ Pre-Effective Amendment No. ☐ Post-Effective Amendment No. 2 ☒ FIDUS INVESTMENT CORPORATION (Exact Name of Registrant as Specified in Charter) 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201

February 28, 2019 EX-99.N(1)

Consent of Independent Registered Public Accounting Firm

EX-99.N(1) Exhibit n(1) Consent of Independent Registered Public Accounting Firm We consent to the use in this Post-Effective Amendment No. 2 to the Registration Statement (No. 333-223350) on Form N-2 of Fidus Investment Corporation and Subsidiaries (collectively, the Company) of our reports dated February 28, 2019, relating to the consolidated financial statements, the senior securities table and

February 28, 2019 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2019

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2019 EVANSTON, Ill., February 28, 2019 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companie

February 28, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 28, 2019 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation)

February 28, 2019 10-K

FDUS / Fidus Investment Corporation 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 28, 2019 EX-21.1

List of Subsidiaries (filed herewith).

EX-21.1 Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction BBRSS Blocker Corp. Delaware FCMGI, Inc. Delaware FCMH Equity Corp. Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Mezzanine Capital III, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 8, 2019 8-A12B

FDUS / Fidus Investment Corporation 8-A12B

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) or (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 27-5017321 (Jurisdiction of Incorporation or Organization) (IRS Employer Identification No.) 1603

February 8, 2019 EX-99.H.4

Underwriting Agreement dated February 5, 2019 by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and the Underwriters named therein (Filed as Exhibit (h)(4) to Post-Effective Amendment No. 1 to the Registrant’s Registration Statement on Form N-2 (File No. 333-223350) filed with the Securities and Exchange Commission on February 8, 2019 and incorporated herein by reference).

EX-99.H.4 Exhibit (h)(4) FIDUS INVESTMENT CORPORATION (a Maryland Corporation) $60,000,000 6.00% Notes due 2024 UNDERWRITING AGREEMENT February 5, 2019 Keefe, Bruyette & Woods, Inc. 787 Seventh Avenue, 4th Floor New York, New York 10019 As Representative of the several Underwriters named in Schedule A Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the “Company”), and F

February 8, 2019 EX-99.D.11

Second Supplemental Indenture dated as of February 5, 2019, between Fidus Investment Corporation and U.S. Bank National Association, as trustee, including the form of global note attached thereto (Filed as Exhibit (d)(11) to the Registrant’s post-effective Amendment No. 1 to the Registration Statement on Form N-2 (File No. 333-223350) filed with the Securities and Exchange Commission on May 1, 2018 and incorporated herein by reference).

EX-99.D.11 Exhibit (d)(11) SECOND SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of February 8, 2019 THIS SECOND SUPPLEMENTAL INDENTURE (this “Second Supplemental Indenture”), dated as of February 8, 2019, is between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank National Association, as trust

February 8, 2019 POS EX

FDUS / Fidus Investment Corporation POS EX

POS EX Table of Contents Securities Act File No. 333-223350 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ☐ Pre-Effective Amendment No. ☐ Post-Effective Amendment No. 1 ☒ FIDUS INVESTMENT CORPORATION (Exact Name of Registrant as Specified in Charter) 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201

February 8, 2019 EX-99.L.2

February 8, 2019

EX-99.L.2 Exhibit (l)(2) February 8, 2019 Fidus Investment Corporation 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201 Ladies and Gentlemen: We have acted as counsel to Fidus Investment Corporation, a Maryland corporation (the “Company”), in connection with the registration statement on Form N-2 (File No. 333-223350) (as amended as of the date hereof, the “Registration Statement”) filed

February 5, 2019 8-K

Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 5, 2019 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (

November 1, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 1, 2018 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (

November 1, 2018 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Fourth Quarter 2018 Board of Directors Declared Special Cash Dividend of $0.04 Per Share

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES THIRD QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Fourth Quarter 2018 Board of Directors Declared Special Cash Dividend of $0.04 Per Share EVANSTON, Ill., November 1, 2018 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financin

November 1, 2018 10-Q

FDUS / Fidus Investment Corporation 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 19, 2018 EX-10.1

Amendment No. 3 and Incremental Commitment Agreement to Senior Secured Revolving Credit Agreement, dated October 19, 2018, to the Senior Secured Revolving Credit Agreement dated June 16, 2014, by and among the Registrant, the lenders party thereto, TIAA, FSB, as increasing lender and a lender and ING Capital LLC as Administrative Agent and a lender (Filed as exhibit 10.1 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on October 19, 2018 and incorporated herein by reference).

EX-10.1 Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 3 AND INCREMENTAL COMMITMENT AGREEMENT TO SENIOR SECURED REVOLVING CREDIT AGREEMENT dated as of October 19, 2018, among FIDUS INVESTMENT CORPORATION, as Borrower, THE INCREASING LENDER PARTY HERETO, as the Increasing Lender and a Lender, and ING CAPITAL LLC, as the Administrative Agent and a Lender relating to the SENIOR SECURED REVOLVING CREDIT

October 19, 2018 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 19, 2018 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (

August 2, 2018 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Third Quarter 2018

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES SECOND QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Third Quarter 2018 EVANSTON, Ill., August 2, 2018 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Un

August 2, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 2, 2018 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Co

August 2, 2018 10-Q

FDUS / Fidus Investment Corporation 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 8, 2018 8-K

Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 7, 2018 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Comm

June 5, 2018 8-K

FDUS / Fidus Investment Corporation 8-K (Current Report)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 5, 2018 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (Comm

June 5, 2018 EX-10.1

Incremental Commitment Agreement to Senior Secured Revolving Credit Agreement, dated June 5, 2018 by and among the Registrant, the subsidiary guarantors party thereto and ING Capital LLC as Administrative Agent and increasing lender (Filed as exhibit 10.1 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on June 5, 2018 and incorporated herein by reference).

EX-10.1 EXHIBIT 10.1 EXECUTION VERSION INCREMENTAL COMMITMENT AGREEMENT dated as of June 5, 2018, made by THE INCREASING LENDER PARTY HERETO, as the Increasing Lender relating to the SENIOR SECURED REVOLVING CREDIT AGREEMENT dated as of June 16, 2014, among FIDUS INVESTMENT CORPORATION, as Borrower, The Lenders Parties Thereto, and ING CAPITAL LLC, as Administrative Agent, Arranger and Bookrunner

May 11, 2018 DEFA14A

FDUS / Fidus Investment Corporation DEFA14A

DEFA14A SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☒ Definitive Additional Materials ☐ Soliciting Material Pursuant to Section 240.

May 3, 2018 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Second Quarter 2018

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FIRST QUARTER 2018 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for Second Quarter 2018 EVANSTON, Ill., May 3, 2018 – Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies based in the Unite

May 3, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 3, 2018 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction (Commission (I.R.S. Empl

May 3, 2018 10-Q

FDUS / Fidus Investment Corporation 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 26, 2018 CORRESP

FDUS / Fidus Investment Corporation CORRESP

CORRESP Eversheds Sutherland (US) LLP 700 Sixth Street, NW, Suite 700 Washington, DC 20001-3980 D: +1 202.

March 27, 2018 DEF 14A

FDUS / Fidus Investment Corporation DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement.

March 1, 2018 PRE 14A

FDUS / Fidus Investment Corporation PRE 14A

PRE 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement.

March 1, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 1, 2018 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 814-00861 27-5017321 (State or other jurisdiction of incorporation) (Com

March 1, 2018 EX-99.1

FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2018

EX-99.1 Exhibit 99.1 FIDUS INVESTMENT CORPORATION ANNOUNCES FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS Regular Quarterly Dividend of $0.39 Per Share Declared for First Quarter 2018 EVANSTON, Ill., March 1, 2018 — Fidus Investment Corporation (NASDAQ:FDUS) (“Fidus” or the “Company”), a provider of customized debt and equity financing solutions, primarily to lower middle-market companies ba

March 1, 2018 10-K

FDUS / Fidus Investment Corporation 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 1, 2018 EX-21.1

List of Subsidiaries (filed herewith).

EX-21.1 Exhibit 21.1 SUBSIDIARIES OF FIDUS INVESTMENT CORPORATION Name Jurisdiction FCCG Equity Corp. Delaware FCIHA, Inc. Delaware FCMGI, Inc. Delaware FCMH Equity Corp. Delaware Fidus Investment GP, LLC Delaware Fidus Mezzanine Capital, L.P. Delaware Fidus Mezzanine Capital II, L.P. Delaware Fidus Investment Holdings, Inc. Delaware

February 2, 2018 EX-99.H.6

Underwriting Agreement dated January 30, 2018 by and among Fidus Investment Corporation, Fidus Investment Advisors, LLC and the Underwriters named therein (Filed as Exhibit (h)(6) to Post-Effective Amendment No. 9 to the Registrant’s Registration Statement on Form N-2 (File No. 333-202531) filed with the Securities and Exchange Commission on February 2, 2018 and incorporated herein by reference).

EX-99.H.6 Exhibit (h)(6) FIDUS INVESTMENT CORPORATION (a Maryland Corporation) $43,478,275 5.875% Notes due 2023 UNDERWRITING AGREEMENT January 30, 2018 Keefe, Bruyette & Woods, Inc. 787 Seventh Avenue, 4th Floor New York, New York 10019 As Representative of the several Underwriters named in Schedule A Ladies and Gentlemen: Fidus Investment Corporation, a Maryland corporation (the ?Company?), and

February 2, 2018 EX-99.D.9

First Supplemental Indenture dated as of February 2, 2018, between Fidus Investment Corporation and U.S. Bank National Association, as trustee, including the form of global note attached thereto (Filed as Exhibit (d)(9) to Post-Effective Amendment No. 4 to the Registrant’s Registration Statement on Form N-2 (File No. 333-202531) filed with the Securities and Exchange Commission on April 18, 2017 and incorporated herein by reference).

EX-99.D.9 2 d506486dex99d9.htm EX-99.D.9 Exhibit (d)(9) FIRST SUPPLEMENTAL INDENTURE between FIDUS INVESTMENT CORPORATION and U.S. BANK NATIONAL ASSOCIATION, as Trustee Dated as of February 2, 2018 THIS FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental Indenture”), dated as of February 2, 2018, is between Fidus Investment Corporation, a Maryland corporation (the “Company”), and U.S. Bank Nati

February 2, 2018 POS EX

FDUS / Fidus Investment Corporation POS EX

POS EX Table of Contents Securities Act File No. 333-202531 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ? Pre-Effective Amendment No. ? Post-Effective Amendment No. 9 ? FIDUS INVESTMENT CORPORATION (Exact Name of Registrant as Specified in Charter) 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201

February 2, 2018 8-A12B

FDUS / Fidus Investment Corporation 8-A12B

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) or (g) OF THE SECURITIES EXCHANGE ACT OF 1934 Fidus Investment Corporation (Exact name of registrant as specified in its charter) Maryland 27-5017321 (Jurisdiction of Incorporation or Organization) (IRS Employer Identification No.) 1603

February 2, 2018 EX-99.L.2

February 2, 2018

EX-99.L.2 4 d506486dex99l2.htm EX-99.L.2 Exhibit (l)(2) February 2, 2018 Fidus Investment Corporation 1603 Orrington Avenue, Suite 1005 Evanston, Illinois 60201 Ladies and Gentlemen: We have acted as counsel to Fidus Investment Corporation, a Maryland corporation (the “Company”), in connection with the registration statement on Form N-2 (File No. 333-202531) (as amended as of the date hereof, the

January 30, 2018 8-K

Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 30, 2018 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation) (

January 2, 2018 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 29, 2017 Fidus Investment Corporation (Exact Name of Registrant as Specified in its Charter) Maryland 814-00861 27-5017321 (State of Other Jurisdiction of Incorporation)

January 2, 2018 EX-10.1

Amendment No. 2, dated December 29, 2017, to the Senior Secured Revolving Credit Agreement dated June 16, 2014, by and among the Registrant, the lenders party thereto and ING Capital LLC as Administrative Agent filed as exhibit 10.1 to the Registrant’s current report on Form 8-K filed with the U.S. Securities and Exchange Commission on January 2, 2018 and incorporated herein by reference.

EX-10.1 Exhibit 10.1 Execution Version AMENDMENT NO. 2 TO SENIOR SECURED REVOLVING CREDIT AGREEMENT This AMENDMENT NO. 2 (this ?Amendment?), dated as of December 29, 2017, is made with respect to the Senior Secured Revolving Credit Agreement, dated as of June 16, 2014 (as amended pursuant to Amendment No. 1 to Senior Secured Revolving Credit Agreement, dated as of December 19, 2014, and as may be

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