SMHI / SEACOR Marine Holdings Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

SEACOR Marine Holdings Inc.
US ˙ NYSE ˙ US78413P1012

Mga Batayang Estadistika
LEI 5493003LNKFW1W43N030
CIK 1690334
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 SEACOR Marine Holdings Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 7, 2025 EX-10.1

MEMORANDUM OF AGREEMENT FOR SALE AND PURCHASE OF VESSEL (“AGREEMENT”)

EX-10.1 Exhibit 10.1 MEMORANDUM OF AGREEMENT FOR SALE AND PURCHASE OF VESSEL (“AGREEMENT”) Dated as of: August 6, 2025 FALCON GLOBAL JILL LLC, a Delaware limited liability company, with principal place of business at 5005 Railroad Avenue, Morgan City, LA 70380, United States of America (hereinafter called the “Seller”), agrees to sell, and JAD Construction Limited, a corporation registered under t

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2025 SEACOR Marine Holdin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2025 SEACOR Marine Holdings Inc.

August 7, 2025 EX-10.2

MEMORANDUM OF AGREEMENT FOR SALE AND PURCHASE OF VESSEL (“AGREEMENT”)

EX-10.2 Exhibit 10.2 MEMORANDUM OF AGREEMENT FOR SALE AND PURCHASE OF VESSEL (“AGREEMENT”) Dated as of: August 6, 2025 FALCON GLOBAL ROBERT LLC, a Delaware limited liability company, with principal place of business at 5005 Railroad Avenue, Morgan City, LA 70380, United States of America (hereinafter called the “Seller”), agrees to sell, and JAD Construction Limited, a corporation registered under

August 7, 2025 EX-99.1

SEACOR MARINE ANNOUNCES STRATEGIC SALE OF VESSELS

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES STRATEGIC SALE OF VESSELS Houston, Texas August 7, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has entered into definitive agreements for the sale of

July 30, 2025 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2025 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2025 RESULTS Houston, Texas July 30, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ended June 30, 2025. SEACOR Marine’s c

July 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 30, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 30, 2025 SEACOR Marine Holdings Inc.

July 30, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

July 30, 2025 EX-10.2

Form of Director Restricted Stock Grant Agreement under the SEACOR Marine Holdings Inc. 2025 Equity Incentive Plan.

Exhibit 10.2 FORM OF DIRECTOR RESTRICTED STOCK GRANT AGREEMENT DIRECTOR RESTRICTED STOCK GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2025 EQUITY INCENTIVE PLAN THIS DIRECTOR RESTRICTED STOCK GRANT AGREEMENT (this “Agreement”), dated as of [], is between SEACOR Marine Holdings Inc., a Delaware corporation (the “Company”), and [] (the “Grantee”). W I T N E S S E T H : WHEREAS, the Gr

June 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 3, 2025 SEACOR Marine Holdings

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 3, 2025 SEACOR Marine Holdings Inc.

June 3, 2025 S-8

As filed with the Securities and Exchange Commission on June 3, 2025

S-8 As filed with the Securities and Exchange Commission on June 3, 2025 Registration No.

June 3, 2025 EX-FILING FEES

Filing Fee Table

Calculation of Filing Fee Tables S-8 SEACOR Marine Holdings Inc. Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, par value $0.01 per share Other 901,348 $ 5.39 $ 4,858,266.00 0.0001531 $ 744.00 Total Offe

April 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2025 SEACOR Marine Holdings Inc.

April 30, 2025 EX-99.1

SEACOR MARINE ANNOUNCES FIRST QUARTER 2025 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2025 RESULTS Houston, Texas April 30, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its first quarter ended March 31, 2025. SEACOR Marine’s c

April 30, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

April 23, 2025 DEF 14A

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

Table of Contents 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)) ☒ Def

April 4, 2025 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 4, 2025 SEACOR Marine Holdings Inc.

April 4, 2025 EX-99.1

SEACOR MARINE ANNOUNCES SECURITIES REPURCHASE

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECURITIES REPURCHASE Houston, Texas April 4, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it purchased from certain funds affiliated with Carlyle: • 1,355,761 o

February 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 26, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 26, 2025 SEACOR Marine Holdings Inc.

February 28, 2025 EX-99.1

Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public co

SEACOR Marine Holdings Inc. Investor Update Exhibit 99.1 28 February 2025 Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute “forward-looking statements” within the meaning of the Private Secu

February 26, 2025 EX-19.1

SEACOR Marine Holdings Inc. Insider Trading and Tipping Procedures and Guidelines.

Exhibit 19.1 Page 1 of 19 Contents 1. Definitions 5 a. Company 5 b. Covered Persons 5 c. Directors 5 d. Designated Outsider 5 e. Employee 5 f. Executive Officers 5 g. Material Information 5 h. “Nonpublic” Information 6 i. Shadow Trading 6 j. Specified Employees 6 2. Procedure 6 3. Scope 7 4. Directors, Executive Officers and Specified Employees 7 a. Directors and Executive Officers 7 b. Specified

February 26, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 26, 2025 SEACOR Marine Holdings Inc.

February 26, 2025 EX-10.5

Compensation of Non-Employee Directors.

Exhibit 10.5 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. receive an annual retainer of $75,000 and each of such directors is also granted equity awards pursuant to the SEACOR Marine Holding Inc.’s 2022 Equity Incentive Plan (Exhibit 10.21 in this Annual Report on Form 10-K).

February 26, 2025 EX-21.1

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2024 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware C-Lift LLC Delaware Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delaware Falcon Global International LLC Marshall Islands Falcon Global Jill LLC Delaware Falcon Global LLC Dela

February 26, 2025 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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 1

February 26, 2025 EX-99.1

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2024 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2024 RESULTS Houston, Texas February 26, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its fourth quarter ended December 31, 2024. SEACOR Ma

February 24, 2025 424B5

SEACOR MARINE HOLDINGS INC. Up to $25,000,000 of Common Stock

Filed pursuant to Rule 424(b)(5) Registration No. 333-284783 PROSPECTUS SEACOR MARINE HOLDINGS INC. Up to $25,000,000 of Common Stock We entered into an At Market Issuance Sales Agreement (the “sales agreement”) dated February 7, 2025, with B. Riley Securities, Inc. (the “sales agent”), as our sales agent, relating to shares of our common stock, par value $0.01 per share. In accordance with the te

February 24, 2025 424B5

$200,000,000 SEACOR MARINE HOLDINGS INC. Common Stock Preferred Stock

Table of Contents Filed pursuant to Rule 424(b)(5) Registration No. 333-284783 PROSPECTUS $200,000,000 SEACOR MARINE HOLDINGS INC. Common Stock Preferred Stock Warrants Units We may, from time to time, offer and sell up to $200,000,000 of any combination of our common stock, preferred stock, or warrants described in this prospectus, either individually or in combination with other securities, at p

February 14, 2025 CORRESP

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079

CORRESP SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 February 14, 2025 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, N.E. Washington, D.C. 20549 Re: SEACOR Marine Holdings Inc. Registration Statement on Form S-3 Filed February 7, 2025 File No. 333-284783 Ladies and Gentlemen: R

February 7, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) SEACOR Marine Holdings Inc.

February 7, 2025 S-3

As filed with the Securities and Exchange Commission on February 7, 2025

Table of Contents As filed with the Securities and Exchange Commission on February 7, 2025 Registration Statement No.

February 7, 2025 EX-1.1

At Market Issuance Sales Agreement, dated February 7, 2025 by and among SEACOR Marine Holdings Inc. and B. Riley Securities Inc.

Exhibit 1.1 SEACOR MARINE HOLDINGS INC. Common Stock (par value $0.01 per share) At Market Issuance Sales Agreement February 7, 2025 B. Riley Securities, Inc. 299 Park Avenue, 21st Floor New York, New York 10171 Ladies and Gentlemen: SEACOR Marine Holdings Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with B. Riley Securities, Inc. (the “Agent”), as follow

December 2, 2024 EX-10.2

Guaranty, dated as of November 27, 2024, by SEACOR Marine Holdings Inc. in favor of Kroll Trustee Services Limited.

Exhibit 10.2 Execution Version GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of KROLL TRUSTEE SERVICES LIMITED, as Security Trustee November 27, 2024 GUARANTY This GUARANTY (this “Guaranty”), dated as of November 27, 2024, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware (the “Parent Guarantor”), in favor of KROLL TRUSTEE SE

December 2, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 27, 2024 SEACOR Marine Holdings Inc.

December 2, 2024 EX-99.1

Forward-Looking Statements SEACOR Marine Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to

Exhibit 99.1 SEACOR Marine Holdings Inc. Investor Presentation 2 December 2024 SMHI LISTED NYSE Forward-Looking Statements SEACOR Marine Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute “forward-looking statements” wi

December 2, 2024 EX-10.1

Credit Agreement, dated as of November 27, 2024, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc., the entities identified on Schedule 1-A thereto as subsidiary guarantors, the lenders identified on Schedule 1-B thereto, Kroll Agency Services Limited, and Kroll Trustee Services Limited.

Exhibit 10.1 Execution Version CREDIT AGREEMENT PROVIDING FOR A SENIOR SECURED TERM LOAN OF UP TO $391,000,000 BY AND AMONG SEACOR MARINE FOREIGN HOLDINGS INC., as Borrower, SEACOR MARINE HOLDINGS INC., as Parent Guarantor THE SUBSIDIARY GUARANTORS FROM TIME TO TIME PARTY HERETO, THE LENDERS IDENTIFIED ON SCHEDULE 1-B, KROLL AGENCY SERVICES LIMITED, as Facility Agent KROLL TRUSTEE SERVICES LIMITED

December 2, 2024 EX-99.2

SEACOR MARINE ANNOUNCES COMPLETE DEBT REFINANCING, NEWBUILD ORDERS, AND VESSEL SALES

Exhibit 99.2 PRESS RELEASE SEACOR MARINE ANNOUNCES COMPLETE DEBT REFINANCING, NEWBUILD ORDERS, AND VESSEL SALES Houston, Texas December 2, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has entered into a new se

October 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

October 30, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 30, 2024 SEACOR Marine Holdings Inc.

October 30, 2024 EX-99.1

SEACOR MARINE ANNOUNCES THIRD QUARTER 2024 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2024 RESULTS Houston, Texas October 30, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its third quarter ended September 30, 2024. SEACOR Mari

September 19, 2024 EX-99.1

SEACOR MARINE ANNOUNCES APPOINTMENT TO THE BOARD OF DIRECTORS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES APPOINTMENT TO THE BOARD OF DIRECTORS Houston, Texas September 19, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has expanded its Board of Directors (the “Board

September 19, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 19, 2024 SEACOR Marine Holdings Inc.

September 10, 2024 EX-99.1

Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public co

Exhibit 99.1 SEACOR Marine Holdings Inc. st 31 Annual Pareto Securities Energy Conference SMHI LISTED John Gellert NYSE President & Chief Executive Officer 11 September 2024 Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time

September 10, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 10, 2024 SEACOR Marine Holdings Inc.

July 31, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

July 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 31, 2024 SEACOR Marine Holdings Inc.

July 31, 2024 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2024 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2024 RESULTS Houston, Texas July 31, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ended June 30, 2024. SEACOR Marine’s c

July 3, 2024 EX-99.1

Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public co

Exhibit 99.1 SEACOR Marine Holdings Inc. SMHI LISTED Investor Presentation NYSE July 2, 2024 Forward-Looking Statements Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute “forward-looking statements” within the meaning

July 3, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 3, 2024 SEACOR Marine Holdings Inc.

June 6, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 6, 2024 SEACOR Marine Holdings Inc.

May 1, 2024 EX-99.1

SEACOR MARINE ANNOUNCES FIRST QUARTER 2024 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2024 RESULTS Houston, Texas May 1, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its first quarter ended March 31, 2024. SEACOR Marine’s cons

May 1, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1, 2024 SEACOR Marine Holdings Inc.

May 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

April 18, 2024 DEF 14A

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

Table of Contents 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)) ☒ Def

March 5, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

February 29, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

February 29, 2024 EX-97

SEACOR Marine Holdings Inc. Clawback Policy.

Exhibit 97 SEACOR Marine Holdings Inc. CLAWBACK POLICY 1. POLICY In accordance with the applicable NYSE listing rules (the “Listing Rules”) and Section 10D and Rule 10D-1 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (“Rule 10D-1”), the Board of Directors (the “Board”) of SEACOR Marine Holdings Inc. (the “Company”) has adopted this Clawback Policy (this “Clawback Policy”)

February 29, 2024 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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 1

February 29, 2024 EX-21.1

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2023 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware C-Lift LLC Delaware Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delaware Falcon Global International LLC Marshall Islands Falcon Global Jill LLC Delaware Falcon Global LLC Dela

February 29, 2024 EX-99.2

Forward-Looking Statements seacormarine.com Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time

SEACOR Marine Holdings Inc. Investor Presentation February 29, 2024 SMHI LISTED NYSE Exhibit 99.2 Forward-Looking Statements seacormarine.com Forward-Looking Statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute “forward-looking statement

February 29, 2024 EX-99.1

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2023 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2023 RESULTS Houston, Texas February 29, 2024 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its fourth quarter ended December 31, 2023. SEACOR Ma

February 29, 2024 EX-10.5

Compensation of Non-Employee Directors.

Exhibit 10.5 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. receive an annual retainer of $75,000 and each of such directors is also granted equity awards pursuant to the SEACOR Marine Holding Inc.'s 2022 Equity Incentive Plan (Exhibit 10.21 in this Annual Report on Form 10-K).

February 14, 2024 SC 13G/A

SMHI / SEACOR Marine Holdings Inc. / Flat Footed LLC - SMHI 13G Passive Investment

SC 13G/A 1 smhi13g.htm SMHI 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 4)* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appro

November 1, 2023 EX-1.1

Sales Agreement, dated November 1, 2023, by and between SEACOR Marine Holdings Inc. and B. Riley Securities, Inc.

Execution Version Exhibit 1.1 SEACOR MARINE HOLDINGS INC. Common Stock (par value $0.01 per share) At Market Issuance Sales Agreement November 1, 2023 B. Riley Securities, Inc. 299 Park Avenue, 21st Floor New York, New York 10171 Ladies and Gentlemen: SEACOR Marine Holdings Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with B. Riley Securities, Inc. (the “

November 1, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2023 SEACOR Marine Holdings Inc.

November 1, 2023 EX-99.1

SEACOR MARINE ANNOUNCES THIRD QUARTER 2023 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2023 RESULTS Houston, Texas November 1, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its third quarter ended September 30, 2023. SEACOR Mari

November 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

November 1, 2023 424B5

SEACOR MARINE HOLDINGS INC. Up to $25,000,000 of Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-262447 Prospectus Supplement (To Prospectus dated February 11, 2022) SEACOR MARINE HOLDINGS INC. Up to $25,000,000 of Common Stock We entered into an At Market Issuance Sales Agreement (the “sales agreement”) with B. Riley Securities, Inc. (the “sales agent”), as our sales agent, relating to shares of our common stock. In acco

September 19, 2023 EX-99.1

Forward-Looking Statement Certain statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute

Exhibit 99.1 SEACOR Marine Holdings Inc. (NYSE: SMHI) th 30 Annual Pareto Securities Energy Conference John Gellert President & Chief Executive Officer 20 September 2023 Forward-Looking Statement Certain statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to th

September 19, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 19, 2023 SEACOR Marine Holdings Inc.

September 11, 2023 EX-10.2

Guaranty, dated as of September 8, 2023, by SEACOR Marine Holdings Inc. in favor of Kroll Trustee Services Limited.

EX-10.2 Exhibit 10.2 GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of KROLL TRUSTEE SERVICES LIMITED, as Security Trustee September 8, 2023 GUARANTY This GUARANTY (this “Guaranty”), dated as of September 8, 2023, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware (the “Parent Guarantor”), in favor of KROLL TRUSTEE SERVICES LIM

September 11, 2023 EX-10.3

Amended and Restated Guaranty, dated as of September 8, 2023, by SEACOR Marine Holdings Inc. in favor of Mountain Supply LLC.

EX-10.3 Exhibit 10.3 AMENDED AND RESTATED GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of MOUNTAIN SUPPLY LLC, as Security Trustee September 8, 2023 AMENDED AND RESTATED GUARANTY This AMENDED AND RESTATED GUARANTY (this “Guaranty”), dated as of September 8, 2023, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware (the “Parent

September 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 8, 2023 SEACOR Marine Hol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 8, 2023 SEACOR Marine Holdings Inc.

September 11, 2023 EX-10.1

Credit Agreement, dated as of September 8, 2023, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc., the entities identified on Schedule 1-A thereto as subsidiary guarantors, the lenders identified on Schedule 1-B thereto, Kroll Agency Services Limited, and Kroll Trustee Services Limited.

EX-10.1 Exhibit 10.1 Execution Version CREDIT AGREEMENT PROVIDING FOR A SENIOR SECURED TERM LOAN OF UP TO $122,000,000 BY AND AMONG SEACOR MARINE FOREIGN HOLDINGS INC., as Borrower, SEACOR MARINE HOLDINGS INC., as Parent Guarantor THE ENTITIES IDENTIFIED ON SCHEDULE 1-A, as Subsidiary Guarantors THE LENDERS IDENTIFIED ON SCHEDULE 1-B, KROLL AGENCY SERVICES LIMITED, as Facility Agent KROLL TRUSTEE

September 11, 2023 EX-99.1

SEACOR MARINE ANNOUNCES COMPREHENSIVE REFINANCING TRANSACTION

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES COMPREHENSIVE REFINANCING TRANSACTION Houston, Texas September 11, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has entered into a new $122.0 million

September 7, 2023 EX-99.1

SEACOR Marine Publishes 2022-2023 Sustainability Report

Exhibit 99.1 PRESS RELEASE SEACOR Marine Publishes 2022-2023 Sustainability Report HOUSTON, September 7, 2023 – SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has published its 2022-2023 Sustainability Report. The report documents SEACOR Mar

September 7, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 7, 2023 SEACOR Marine Holdings Inc.

August 2, 2023 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2023 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2023 RESULTS Houston, Texas August 2, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ended June 30, 2023. SEACOR Marine’s

August 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

August 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2023 SEACOR Marine Holdings Inc.

June 20, 2023 EX-10.1

Credit Agreement, dated as of June 16, 2023, by and among SEACOR Alps LLC, SEACOR Andes LLC, SEACOR Atlas LLC, SEACOR Marine Holdings Inc., SEACOR Marine Alpine LLC, and Mountain Supply LLC (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Current Report on Form 8-K filed with the Commission on June 20, 2023 (File No. 001-37966)).

Exhibit 10.1 Execution Version CREDIT AGREEMENT PROVIDING FOR A SENIOR SECURED TERM LOAN OF UP TO $28,000,000 BY AND AMONG SEACOR ALPS LLC SEACOR ANDES LLC and SEACOR ATLAS LLC, as Joint and Several Borrowers SEACOR MARINE HOLDINGS INC. and SEACOR MARINE ALPINE LLC as Guarantors the Lenders from time to time party hereto, and MOUNTAIN SUPPLY LLC, as Facility Agent and Security Trustee as of June 1

June 20, 2023 EX-10.2

Guaranty, dated as of June 16, 2023, by SEACOR Marine Holdings Inc. in favor of Mountain Supply LLC (incorporated herein by reference to Exhibit 10.2 of SEACOR Marine Holdings Inc.’s Current Report on Form 8-K filed with the Commission on June 20, 2023 (File No. 001-37966)).

EX-10.2 Exhibit 10.2 Execution Version GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of MOUNTAIN SUPPLY LLC, as Security Trustee June 16, 2023 1 Exhibit 10.2 GUARANTY This GUARANTY (this “Guaranty”), dated as of June 16, 2023, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware (the “Parent Guarantor”), in favor of MOUNTAIN SUP

June 20, 2023 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, DC 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 16, 2023 SEACOR Marine Holdings Inc.

June 8, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 6, 2023 SEACOR Marine Holdings Inc.

May 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2023

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2023 SEACOR Marine Holdings Inc.

May 3, 2023 EX-10

Form of Performance Restricted Stock Unit Grant Agreement under the SEACOR Marine Holdings Inc. 2022 Equity Incentive Plan (incorporated by reference to Exhibit 10.3 of SEACOR Marine Holdings Inc.’s Quarterly Report on Form 10-Q filed with the Commission on May 3, 2023 (File No. 001-37966)).

Exhibit 10.3 PERFORMANCE RESTRICTED STOCK UNIT GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2022 EQUITY INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT GRANT AGREEMENT (this “Agreement”), dated as of [], 20[] (the “Grant Date”), is between SEACOR Marine Holdings Inc., a Delaware corporation (the “Company”), and [] (the “Grantee”). This Agreement is subject to all terms and pro

May 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

May 3, 2023 EX-10

Form of Restricted Stock Grant Agreement under the SEACOR Marine Holdings Inc. 2022 Equity Incentive Plan (incorporated by reference to Exhibit 10.2 of SEACOR Marine Holdings Inc.’s Quarterly Report on Form 10-Q filed with the Commission on May 3, 2023 (File No. 001-37966)).

Exhibit 10.2 RESTRICTED STOCK GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2022 EQUITY INCENTIVE PLAN THIS RESTRICTED STOCK GRANT AGREEMENT (this “Agreement”), dated as of [], 20[], is between SEACOR Marine Holdings Inc., a Delaware corporation (the “Company”), and [] (the “Grantee”). W I T N E S S E T H : WHEREAS, the Grantee is an employee of, or consultant to, the Company or its

May 3, 2023 EX-99

SEACOR MARINE ANNOUNCES FIRST QUARTER 2023 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2023 RESULTS Houston, Texas May 3, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its first quarter ended March 31, 2023. SEACOR Marine’s cons

April 21, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 21, 2023 SEACOR Marine Holdings Inc.

April 21, 2023 EX-99.1

Forward-Looking Statements Forward-LookingStatementsdiscussedinthisreleaseaswellasinotherreports,materialsandoralstatementsthatSEACORMarineHoldingsInc.(“SMHI”orthe“Company”)releasesfromtimeto time to the public constitute “forward-looking statements”

EX-99.1 Exhibit 99.1 SEACOR Marine Holdings Inc. Investor Update April 21, 2023 Forward-Looking Statements Forward-LookingStatementsdiscussedinthisreleaseaswellasinotherreports,materialsandoralstatementsthatSEACORMarineHoldingsInc.(“SMHI”orthe“Company”)releasesfromtimeto time to the public constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of

April 21, 2023 EX-99.2

SEACOR MARINE ANNOUNCES CONTEMPLATED BOND ISSUE

EX-99.2 Exhibit 99.2 PRESS RELEASE SEACOR MARINE ANNOUNCES CONTEMPLATED BOND ISSUE Houston, Texas April 21, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced that it has mandated Clarksons Securities AS and DNB Markets, a part of DNB Bank AS

April 20, 2023 DEF 14A

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

Table of Contents 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)) ☒ Defi

March 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holding

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

March 6, 2023 EX-21

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2022 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware Amber Shipping Inc. Panama C-Lift LLC Delaware Compania Empresarial Del Mar Y Navegacion S.A. de C.V. Mexico Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delaware Falcon Global

March 6, 2023 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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 1

March 6, 2023 EX-99

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2022 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2022 RESULTS Houston, Texas March 6, 2023 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its fourth quarter ended December 31, 2022. SEACOR Marine

March 6, 2023 EX-10

Compensation of Non-Employee Directors

Exhibit 10.7 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. receive an annual retainer of $75,000 and each of such directors is also granted equity awards pursuant to the SEACOR Marine Holding Inc.'s 2022 Equity Incentive Plan (Exhibit 10.37 in this Annual Report on Form 10-K).

March 6, 2023 EX-10

Amendment No. 7 to Second Amended and Restated Guaranty, dated as of March 2, 2023, by and among, inter alios, SEACOR Marine Holdings Inc., DNB Bank ASA, New York Branch, and the consenting lenders thereto.

Exhibit 10.46 AMENDMENT NO. 7 THIS AMENDMENT NO. 7 (this “Amendment”) is made as of the 2nd day of March 2023, and amends and is supplemental to that certain second amended and restated guaranty dated as of September 29, 2022 (as amended, supplemented or otherwise modified from time to time, the “Parent Guaranty”), and is by and among, inter alios, (i) SEACOR Marine Holdings Inc., a corporation in

March 6, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2023 SEACOR Marine Holdings Inc.

February 14, 2023 SC 13G/A

SMHI / SEACOR Marine Holdings Inc / Flat Footed LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

December 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, DC 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 22, 2022 SEACOR Marine Holdings Inc.

December 23, 2022 EX-10.1

Amendment No. 8 to Second Amended and Restated Credit Agreement, dated as of December 22, 2022, by and among SEACOR Offshore OSV LLC, the other borrowers thereunder, DNB Bank ASA, New York Branch, DNB Markets, Inc., DNB Capital LLC and Comerica Bank.

Exhibit 10.1 AMENDMENT NO. 8 TO SECOND AMENDED AND RESTATED CREDIT FACILITY AGREEMENT THIS AMENDMENT NO. 8 TO SECOND AMENDED AND RESTATED CREDIT FACILITY AGREEMENT (this ?Amendment?) is made as of the 22nd day of December, 2022, and amends and is supplemental to that certain second amended and restated senior secured term loan credit facility agreement dated as of December 31, 2021 (as amended, an

November 22, 2022 424B7

2,978,724 Shares of Common Stock (or 2,978,724 Warrants in Lieu of Such Common Stock) Issuable Upon Conversion of the Convertible Notes, as well as any Shares of Common Stock Underlying the Warrants

Table of Contents Filed pursuant to Rule 424(b)(7) Registration No. 333-268175 PROSPECTUS 2,978,724 Shares of Common Stock (or 2,978,724 Warrants in Lieu of Such Common Stock) Issuable Upon Conversion of the Convertible Notes, as well as any Shares of Common Stock Underlying the Warrants On October 5, 2022, SEACOR Marine Holdings Inc. (?we,? ?us? or ?our?) and certain funds affiliated with The Car

November 16, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) SEACOR Marine Holdings Company (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Newly Registered Securities Fees to Be Paid ? ? ? ? ? ? ? ? Fees Previously Paid Equity Common stock, $0.

November 16, 2022 S-3/A

As filed with the United States Securities and Exchange Commission on November 16, 2022

As filed with the United States Securities and Exchange Commission on November 16, 2022 Registration No.

November 16, 2022 CORRESP

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 November 17, 2022 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F Street, N.E. Washington, D.C. 20549 Re: SEACOR Marine Holdings Inc. Registration Statement on Form S-3 Filed November 4, 2022, as amended File No. 333-268175 Ladies and Gentleme

November 7, 2022 DEL AM

November 7, 2022

November 7, 2022 By EDGAR Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-7010 Re: SEACOR Marine Holdings Inc. Registration Statement on Form S-3 (File No. 333-268175) Ladies and Gentlemen: Reference is made to the Registration Statement on Form S-3 (File No. 333- 268175) filed by SEACOR Marine Holdings Inc. on November 4, 2022 (the ?Registration Statement?). We are fi

November 4, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES 4 d403086dexfilingfees.htm EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) SEACOR Marine Holdings Company (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum A

November 4, 2022 S-3

As filed with the United States Securities and Exchange Commission on November 4, 2022

S-3 1 d403086ds3.htm S-3 Table of Contents As filed with the United States Securities and Exchange Commission on November 4, 2022 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form S-3 Registration Statement Under The Securities Act of 1933 SEACOR Marine Holdings Inc. (Exact name of registrant as specified in its charter) Delaware 47-2564547 (State o

November 2, 2022 EX-99.1

SEACOR MARINE ANNOUNCES THIRD QUARTER 2022 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2022 RESULTS Houston, Texas November 2, 2022 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its third quarter ended September 30, 2022. SEACOR Mari

November 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2022 SEACOR Marine Holdings Inc.

November 2, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

October 5, 2022 EX-10.6

Exchange Agreement (Convertible Notes), dated as of October 5, 2022, by and among SEACOR Marine Holdings Inc., and CEOF II DE I AIV, L.P., CEOF II Coinvestment (DE), L.P. and CEOF II Coinvestment B (DE), L.P. (filed as Exhibit 2.1 to the Company’s Registration Statement on Form S-3 (File No. 333-268175), as filed with the Securities and Exchange Commission on November 4, 2022)

Exhibit 10.6 EXECUTION VERSION $35,000,000 Principal Amount of 4.25% Convertible Senior Notes due 2026 EXCHANGE AGREEMENT (NEW CONVERTIBLE NOTES) Dated as of October 5, 2022 by and among SEACOR MARINE HOLDINGS INC., as Company and THE INVESTORS IDENTIFIED ON SCHEDULE A HERETO TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND ACCOUNTING TERMS 1 Section 1.01 Defined Terms 1 Section 1.02 Accounting Te

October 5, 2022 EX-10.2

Third Amended and Restated Senior Secured Term Loan Credit Facility Agreement, dated as of September 29, 2022, by and among Mantenimiento Express Maritimo, S.A.P.I. de C.V., SEACOR Marine Capital Inc., and DNB Bank ASA, New York Branch.

Exhibit 10.2 Execution Version THIRD AMENDED AND RESTATED TERM LOAN CREDIT FACILITY AGREEMENT PROVIDING FOR A SENIOR SECURED TERM LOAN IN THE AMOUNT OF UP TO $28,831,148.32 BY AND AMONG MANTENIMIENTO EXPRESS MAR?TIMO, S.A.P.I. DE C.V., as Borrower DNB BANK ASA, NEW YORK BRANCH as Facility Agent and Collateral Agent, and the Institutions identified on Schedule 1-A, as Lenders as of September 29, 20

October 5, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 29, 2022 SEACOR Marine Holdings Inc.

October 5, 2022 EX-4.1

Registration Rights Agreement, dated October 5, 2022, by and among SEACOR Marine Holdings Inc. and the holders of the New Convertible Notes from time-to-time party thereto (incorporated herein by reference to Exhibit 4.1 of SEACOR Marine Holdings Inc.’s Current Report on Form 8-K filed with the Commission on October 5, 2022 (File No. 001-37966)).

Exhibit 4.1 EXECUTION VERSION REGISTRATION RIGHTS AGREEMENT BY AND AMONG SEACOR MARINE HOLDINGS INC. AND THE OTHER PARTIES LISTED ON SCHEDULE I HERETO Dated as of October 5, 2022 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS SECTION 1.01. Defined Terms 1 SECTION 1.02. Other Interpretive Provisions 7 ARTICLE II REGISTRATION RIGHTS SECTION 2.01. Demand Registration 7 SECTION 2.02. Shelf Registration

October 5, 2022 EX-10.4

Second Amended and Restated Guaranty, dated as of September 29, 2022, by SEACOR Marine Holdings Inc. in favor of DNB Bank ASA, New York Branch, as security trustee.

Exhibit 10.4 Execution Version SECOND AMENDED AND RESTATED GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of DNB BANK ASA, NEW YORK BRANCH, as Security Trustee September 29, 2022 SECOND AMENDED AND RESTATED GUARANTY This SECOND AMENDED AND RESTATED GUARANTY (this ?Guaranty?), dated as of September 29, 2022, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the

October 5, 2022 EX-10.1

Framework Agreement, dated September 29, 2022, by and among, SEACOR Marine Holdings Inc., SEACOR Marine LLC, SEACOR Offshore LLC, SEACOR Marine Capital Inc., Operadora de Transportes Maritimos, S.A. de C.V., CME Drillship Holdings DAC, and Offshore Vessels Holding, S.A.P.I. de C.V.

Exhibit 10.1 EXECUTION VERSION FRAMEWORK AGREEMENT by and among SEACOR MARINE HOLDINGS INC., SEACOR MARINE LLC, SEACOR OFFSHORE LLC, SEACOR MARINE CAPITAL INC., OPERADORA DE TRANSPORTES MARITIMOS, S.A. DE C.V., OFFSHORE VESSELS HOLDING, S.A.P.I. DE C.V., and CME DRILLSHIP HOLDINGS DAC dated as of September 29, 2022 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 Section 1.01 Certain Definitions 2 S

October 5, 2022 EX-10.3

Amendment No. 5 to Credit Agreement, dated as of September 29, 2022, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc., DNB Bank ASA, New York Branch, and the other entities identified on the signature pages thereto.

Exhibit 10.3 Execution Version AMENDMENT NO. 5 TO CREDIT AGREEMENT THIS AMENDMENT NO. 5 TO CREDIT AGREEMENT (this ?Amendment?) is made as of the 29th day of September, 2022, and amends and is supplemental to (a) that certain credit agreement dated as of September 26, 2018 (as may be amended, supplemented or otherwise modified from time to time, the ?Credit Agreement?) and (b) that certain guaranty

October 5, 2022 EX-99.2

SEACOR MARINE HOLDINGS INC. UNAUDITED PRO FORMA FINANCIAL INFORMATION

Exhibit 99.2 SEACOR MARINE HOLDINGS INC. UNAUDITED PRO FORMA FINANCIAL INFORMATION Introduction On September 29, 2022, SEACOR Marine Holdings Inc. (the ?Company?), SEACOR Marine LLC, a wholly-owned subsidiary of the Company (?SEACOR Marine LLC?), SEACOR Offshore LLC, a wholly-owned subsidiary of the Company (?SEACOR Offshore?), and SEACOR Marine Capital Inc., a wholly-owned subsidiary of the Compa

October 5, 2022 EX-10.5

Exchange Agreement (Guaranteed Notes), dated as of October 5, 2022, by and among SEACOR Marine Holdings Inc., Falcon Global Robert LLC and CEOF II DE I AIV, L.P., CEOF II Coinvestment (DE), L.P. and CEOF II Coinvestment B (DE), L.P.

Exhibit 10.5 EXECUTION VERSION $90,000,000 Principal Amount of 8.0% / 9.5% Senior PIK Toggle Notes due 2026 EXCHANGE AGREEMENT (GUARANTEED NOTES) Dated as of October 5, 2022 by and among SEACOR MARINE HOLDINGS INC., as Company, FALCON GLOBAL ROBERT LLC, as Guarantor, and THE INVESTORS IDENTIFIED ON SCHEDULE A HERETO TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND ACCOUNTING TERMS 1 Section 1.01 D

October 5, 2022 EX-99.1

SEACOR MARINE ANNOUNCES SALE OF UNCONSOLIDATED JOINT VENTURES AND REFINANCING TRANSACTIONS TO SIGNIFICANTLY EXTEND NEAR TERM MATURITIES

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SALE OF UNCONSOLIDATED JOINT VENTURES AND REFINANCING TRANSACTIONS TO SIGNIFICANTLY EXTEND NEAR TERM MATURITIES Houston, Texas October 5, 2022 FOR IMMEDIATE RELEASE?SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore oil and natural gas and wind fa

September 14, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 14, 2022 SEACOR Marine Holdings Inc.

September 14, 2022 EX-99.1

Forward-Looking Statements Certain statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (“SEACOR Marine” or the “Company”) releases from time to time to the public constitute

Exhibit 99.1 SEACOR Marine Holdings Inc. (NYSE: SMHI) 29th Annual Pareto Securities Energy Conference John Gellert President & Chief Executive Officer 15 September 2022 Forward-Looking Statements Certain statements discussed in this release as well as in other reports, materials and oral statements that SEACOR Marine Holdings Inc. (?SEACOR Marine? or the ?Company?) releases from time to time to th

August 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

August 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2022 SEACOR Marine Holdings Inc.

August 3, 2022 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2022 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2022 RESULTS Houston, Texas August 3, 2022 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ended June 30, 2022. SEACOR Marine?s

August 3, 2022 EX-10

Form of Director Restricted Stock Grant Agreement under the SEACOR Marine Holdings Inc. 2022 Equity Incentive Plan (incorporated herein by reference to Exhibit 10.4 of SEACOR Marine Holdings Inc.’s Quarterly Report on Form 10-Q filed with the Commission on August 3, 2022 (File No. 001-37966)).

Exhibit 10.4 FORM OF DIRECTOR RESTRICTED STOCK GRANT AGREEMENT DIRECTOR RESTRICTED STOCK GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2022 EQUITY INCENTIVE PLAN THIS DIRECTOR RESTRICTED STOCK GRANT AGREEMENT (this ?Agreement?), dated as of [], is between SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), and [] (the ?Grantee?). W I T N E S S E T H : WHEREAS, the Gr

June 17, 2022 EX-10.1

Amendment No. 4 to Credit Agreement and Parent Guaranty, dated as of June 15, 2022, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc., DNB Bank ASA, New York Branch, DNB Capital LLC, Clifford Capital Pte. Ltd., Hancock Whitney Bank, Citicorp North America, Inc., and the entities identified on schedules thereto.

Exhibit 10.1 Execution Version AMENDMENT NO. 4 TO CREDIT AGREEMENT AND PARENT GUARANTY THIS AMENDMENT NO. 4 TO CREDIT AGREEMENT AND PARENT GUARANTY (this ?Amendment?) is made as of the 15th day of June, 2022, and amends and is supplemental to (a) that certain credit agreement dated as of September 26, 2018 (as may be amended, supplemented or otherwise modified from time to time, the ?Credit Agreem

June 17, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 15, 2022 SEACOR Marine Holdings Inc.

June 17, 2022 EX-10.2

Amended and Restated Guaranty, dated as of June 15, 2022, by SEACOR Marine Holdings Inc. in favor of DNB Bank ASA, New York Branch, as security trustee.

Exhibit 10.2 EXECUTION VERSION AMENDED AND RESTATED GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of DNB BANK ASA, NEW YORK BRANCH, as Security Trustee June 15, 2022 AMENDED AND RESTATED GUARANTY This AMENDED AND RESTATED GUARANTY (this ?Guaranty?), dated as of June 15, 2022, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware

June 10, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2022 SEACOR Marine Holdings Inc.

June 9, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE Form S-8 (Form type) SEACOR MARINE HOLDINGS INC.

June 9, 2022 S-8

As filed with the Securities and Exchange Commission on June 9, 2022

As filed with the Securities and Exchange Commission on June 9, 2022 Registration No.

May 5, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2022 SEACOR Marine Holdings Inc.

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

May 5, 2022 EX-99.1

SEACOR MARINE ANNOUNCES FIRST QUARTER 2022 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2022 RESULTS Houston, Texas May 4, 2022 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its first quarter ended March 31, 2022. SEACOR Marine?s cons

April 22, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 22, 2022 SEACOR Marine Holdings Inc.

April 22, 2022 DEF 14A

Schedule 14A

Table of Contents 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)) ? Defi

March 16, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 10, 2022 SEACOR Marine Holdings Inc.

March 10, 2022 EX-10

Amendment No. 7 to Amended and Restated Credit Facility Agreement, dated as of December 31, 2021, by and among SEACOR OSV Partners I LP, the other borrowers thereunder, DNB Bank ASA, New York Branch, and Comerica Bank (incorporated herein by reference to Exhibit 10.37 of SEACOR Marine Holdings Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the Commission on March 10, 2022 (File No. 001-37966)).

EX-10 3 smhi-ex1017.htm EX-10.38 Exhibit 10.37 EXECUTION VERSION AMENDMENT NO. 7 TO AMENDED AND RESTATED CREDIT FACILITY AGREEMENT THIS AMENDMENT NO. 7 TO AMENDED AND RESTATED CREDIT FACILITY AGREEMENT (this “Amendment”) is made as of the 31st day of December, 2021, and amends and is supplemental to that certain amended and restated senior secured term loan credit facility agreement dated as of Se

March 10, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 10, 2022 SEACOR Marine Holdings Inc.

March 10, 2022 EX-10.12

Compensation of Non-Employee Directors

Exhibit 10.9 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. (the ?Company?) receive an annual retainer of $50,000 and each of such directors is also granted equity awards pursuant to the SEACOR Marine Holding Inc.'s 2020 Equity Incentive Plan (Exhibit 10.29 in this Annual Report on Form 10-K).

March 10, 2022 EX-99.1

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2021 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2021 RESULTS Houston, Texas March 10, 2022 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its fourth quarter ended December 31, 2021. SEACOR Marine

March 10, 2022 EX-21.1

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2021 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware C-Lift LLC Delaware Compania Empresarial Del Mar Y Navegacion S.A. de C.V. Mexico Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delaware Falcon Global International LLC Marshall

March 10, 2022 EX-10

Guaranty, dated as of December 31, 2021, by SEACOR Marine Holdings Inc. in favor of DNB Bank ASA, New York Branch, as security trustee.

Exhibit 10.38 EXECUTION VERISON GUARANTY by SEACOR MARINE HOLDINGS INC. in favor of DNB BANK ASA, NEW YORK BRANCH, as Security Trustee December 31, 2021 GUARANTY This GUARANTY (this ?Guaranty?), dated as of December 31, 2021, is made by SEACOR MARINE HOLDINGS INC., a corporation incorporated and existing under the laws of the State of Delaware (the ?Guarantor?), in favor of DNB BANK ASA, New York

March 10, 2022 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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 1

February 14, 2022 424B5

Primary Offering Common Stock Preferred Stock Debt Securities Secondary Offering 1,272,301 Shares of Common Stock

Table of Contents Filed pursuant to Rule 424(b)(5) Registration No. 333-262447 PROSPECTUS Primary Offering $200,000,000 Common Stock Preferred Stock Debt Securities Warrants Units Secondary Offering 1,272,301 Shares of Common Stock We may, from time to time, offer and sell up to $200,000,000 of any combination of our common stock, preferred stock, debt securities or warrants described in this pros

February 9, 2022 CORRESP

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 February 9, 2022

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 February 9, 2022 Division of Corporation Finance Office of Energy & Transportation U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: SEACOR Marine Holdings Inc. Registration Statement on Form S-3 Filed February 1, 2022 File No. 333-262447 Ladies and Gentlemen: Reference is made to

February 1, 2022 S-3

As filed with the Securities and Exchange Commission on February 1, 2022

Table of Contents As filed with the Securities and Exchange Commission on February 1, 2022 Registration No.

February 1, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables S-3 (Form Type) SEACOR Marine Holdings Company (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common Stock, $0.

January 19, 2022 SC 13G/A

SMHI / SEACOR Marine Holdings Inc / Flat Footed LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 78413P101 (CUSIP Number) January 5, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule p

January 19, 2022 SC 13G/A

SMHI / SEACOR Marine Holdings Inc / Flat Footed LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* SEACOR Marine Holdings Inc (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

January 6, 2022 8-K

Unregistered Sales of Equity Securities, 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, DC 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 31, 2021 SEACOR Marine Holdings Inc.

December 28, 2021 CORRESP

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 December 28, 2021

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 December 28, 2021 VIA EDGAR Division of Corporation Finance Office of Energy & Transportation U.S. Securities and Exchange Commission 100 F Street, N.E. Washington D.C. 20549 Re: SEACOR Marine Holdings Inc. Form 10-K for the Fiscal Year Ended December 31, 2020 Filed March 12, 2021 File No. 001-37966 Ladies and Gentl

December 22, 2021 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, 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): December 22, 2021 SEACOR MARINE HOLDINGS INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-37966 47-2564547 (State or Other Jurisdiction of Incorporation) (Comm

December 22, 2021 EX-2.1

Merger Agreement, dated December 22, 2021, among SEACOR Marine Holdings Inc., SEACOR Offshore OSV LLC and SEACOR OSV PARTNERS I LP.

EX-2.1 2 d272774dex21.htm EX-2.1 Exhibit 2.1 AGREEMENT AND PLAN OF MERGER THIS AGREEMENT AND PLAN OF MERGER (this “Agreement”), dated as of December 22, 2021, is entered into by and between SEACOR OFFSHORE OSV LLC, a Delaware limited liability company (“Merger Sub”), SEACOR OSV PARTNERS I LP., a Delaware limited partnership (the “Partnership”), and SEACOR MARINE HOLDINGS INC., a Delaware corporati

December 16, 2021 CORRESP

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 December 16, 2021

SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 December 16, 2021 VIA EDGAR Division of Corporation Finance Office of Energy & Transportation U.S. Securities and Exchange Commission 100 F Street, N.E. Washington D.C. 20549 Re: SEACOR Marine Holdings Inc. Form 10-K for the Fiscal Year Ended December 31, 2020 Filed March 12, 2021 File No. 001-37966 Ladies and Gentl

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

November 4, 2021 EX-99.1

SEACOR MARINE ANNOUNCES THIRD QUARTER 2021 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2021 RESULTS Houston, Texas November 4, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its third quarter ended September 30, 2021. SEACOR Marin

November 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

August 4, 2021 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2021 RESULTS

EX-99.1 2 smhi-ex9916.htm EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2021 RESULTS Houston, Texas August 4, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its second quarter ende

August 4, 2021 EX-10.3

Form of Director Restricted Stock Grant Agreement under the SEACOR Marine Holdings Inc. 2020 Equity Incentive Plan.

Exhibit 10.3 FORM OF DIRECTOR RESTRICTED STOCK GRANT AGREEMENT DIRECTOR RESTRICTED STOCK GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2020 EQUITY INCENTIVE PLAN THIS DIRECTOR RESTRICTED STOCK GRANT AGREEMENT (this ?Agreement?), dated as of [], is between SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), and [] (the ?Grantee?). W I T N E S S E T H : WHEREAS, the Gr

August 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

August 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2021 SEACOR Marine Holdings Inc.

June 11, 2021 8-K

Regulation FD Disclosure, 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, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 10, 2021 SEACOR Marine Holdings Inc.

June 11, 2021 EX-10.2

Conditional Payoff Guaranty, dated June 10, 2021, by and between SEACOR Marine Holdings Inc., as guarantor, and JPMorgan Chase Bank, N.A., as administrative agent for the lenders.

Exhibit 10.2 CONDITIONAL PAYOFF GUARANTY BORROWER: Falcon Global USA LLC. c/o SEACOR Marine Holdings, Inc. 7910 Main Street Second Floor Houma, LA 70360 GUARANTOR: SEACOR Marine Holdings Inc. 7910 Main Street Second Floor Houma, LA 70360 Telecopier No: THIS CONDITIONAL PAYOFF GUARANTY (this ?Agreement?), dated as of June 10, 2021, is made by SEACOR Marine Holdings Inc. (?Guarantor?) pursuant to (a

June 11, 2021 EX-10.1

Second Amendment and Conditional Payoff Agreement, dated June 10, 2021, by and among Falcon Global USA LLC, the other loan parties, SEACOR Marine Holdings Inc., JPMorgan Chase Bank, N.A., as administrative agent for the lenders, and the lenders party thereto.

Exhibit 10.1 Certain exhibits to this Second Amendment and Conditional Payoff Agreement have been omitted. SECOND AMENDMENT AND CONDITIONAL PAYOFF AGREEMENT This SECOND AMENDMENT AND CONDITIONAL PAYOFF AGREEMENT (this ?Agreement?) is entered into on June 10, 2021, among Falcon Global USA LLC (?Borrower?), the other Loan Parties, SEACOR Marine Holdings Inc. (?SEACOR?), the Lenders, and JPMorgan Cha

June 11, 2021 EX-99.1

SEACOR MARINE ANNOUNCES DEBT PAYOFF AGREEMENT

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES DEBT PAYOFF AGREEMENT Houston, Texas June 11, 2021 FOR IMMEDIATE RELEASE?SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, announced that Falcon Global USA LLC (?FGUSA?), an indirect subsidiary of SEACOR Marine, enter

May 6, 2021 EX-99.1

SEACOR MARINE ANNOUNCES FIRST QUARTER 2021 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2021 RESULTS Houston, Texas May 6, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its first quarter ended March 31, 2021. Chief Executive Offic

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 1-37966 SEACOR Marine Holdings Inc.

May 6, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

April 28, 2021 EX-99.1

SEACOR MARINE ANNOUNCES CHANGES TO BOARD OF DIRECTORS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES CHANGES TO BOARD OF DIRECTORS Houston, Texas April 28, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the ?Company? or ?SEACOR Marine?), a leading provider of marine and support transportation services to offshore energy facilities worldwide, announced that directors Charles Fabrikant and Robert (Bob) D. Abendschein will not

April 28, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 23, 2021 SEACOR Marine Holdings Inc.

April 28, 2021 DEF 14A

- DEF 14A

Table of Contents 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)) ? Defi

April 20, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 19, 2021 SEACOR Marine Holdings Inc.

April 20, 2021 EX-99.1

12121 Wickchester Lane

EX-99.1 Exhibit 99.1 12121 Wickchester Lane Suite 500 Houston, TX 77079 +1 346 980 1700 April 19, 2021 Dear Team, It is with deep sadness that I write to you today. As you may already be aware, on Tuesday, a liftboat owned by SEACOR Marine, the SEACOR Power, capsized south of Port Fourchon with nineteen individuals on board. While we are incredibly grateful to the U.S. Coast Guard for their rescue

March 16, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 10, 2021 SEACOR Marine Holdings Inc.

March 12, 2021 EX-10.40

Form of Restricted Stock Grant Agreement under the SEACOR Marine Holdings Inc. 2020 Equity Incentive Plan.

Exhibit 10.40 RESTRICTED STOCK GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2020 EQUITY INCENTIVE PLAN THIS RESTRICTED STOCK GRANT AGREEMENT (this ?Agreement?), dated as of [], 20[], is between SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), and [] (the ?Grantee?). W I T N E S S E T H : WHEREAS, the Grantee is an employee of, or consultant to, the Company or its

March 12, 2021 EX-21.1

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2020 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware C-Lift LLC Delaware Compania Empresarial Del Mar Y Navegacion S.A. de C.V. Mexico CTV Crewing Services Ltd England and Wales Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delawar

March 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 11, 2021 SEACOR Marine Holdings Inc.

March 12, 2021 10-K

Annual Report - 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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 1

March 12, 2021 EX-10.12

Compensation of Non-Employee Directors

Exhibit 10.12 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. (the ?Company?) receive an annual retainer of $50,000 and each of such directors is also granted equity awards pursuant to the SEACOR Marine Holding Inc.'s 2020 Equity Incentive Plan (Exhibit 10.39 in this Annual Report on Form 10-K).

March 12, 2021 EX-10.42

Form of Performance Restricted Stock Unit Grant Agreement under the SECOR Marine Holdings Inc. 2020 Equity Incentive Plan.

Exhibit 10.42 PERFORMANCE RESTRICTED STOCK UNIT GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2020 EQUITY INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT GRANT AGREEMENT (this ?Agreement?), dated as of [], 20[] (the ?Grant Date?), is between SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), and [] (the ?Grantee?). This Agreement is subject to all terms and pr

March 12, 2021 EX-99.1

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2020 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2020 RESULTS Houston, Texas March 11, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its fourth quarter and full year ended December 31, 2020.

March 12, 2021 EX-10.43

Form of Director Stock Option Agreement under the SEACOR Marine Holdings Inc. 2020 Equity Incentive Plan.

Exhibit 10.43 FORM OF DIRECTOR STOCK OPTION GRANT AGREEMENT DIRECTOR STOCK OPTION GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2020 EQUITY INCENTIVE PLAN THIS DIRECTOR STOCK OPTION GRANT AGREEMENT (this ?Agreement?), dated as of [], 20[] (the ?Grant Date?), sets forth the agreement of SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), to grant options to [], a non-

March 12, 2021 EX-10.41

Form of Stock Option Grant Agreement under the SEACOR Marine Holdings Inc. 2020 Equity Incentive Plan.

Exhibit 10.41 STOCK OPTION GRANT AGREEMENT PURSUANT TO THE SEACOR MARINE HOLDINGS INC. 2020 EQUITY INCENTIVE PLAN THIS STOCK OPTION GRANT AGREEMENT (this ?Agreement?), dated as of [], 20[] (the ?Agreement Date?), sets forth the agreement of SEACOR Marine Holdings Inc., a Delaware corporation (the ?Company?), to grant options to [], an employee of, or consultant to, the Company or its Affiliates (t

March 1, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 24, 2021 SEACOR Marine Holdings Inc.

March 1, 2021 EX-10.1

Seventh Consent, Agreement and Omnibus Amendments, dated February 24, 2021, by and among Falcon Global USA LLC, the other loan parties, SEACOR Marine Holdings Inc., JP Morgan Chase Bank, N.A., as administrative agent for the lenders, and the lenders party thereto.

Exhibit 10.1 Execution Version SEVENTH CONSENT, AGREEMENT AND OMNIBUS AMENDMENTS THIS SEVENTH CONSENT, AGREEMENT AND OMNIBUS AMENDMENTS (this ?Agreement?) is entered into on February 24, 2021, among Falcon Global USA LLC (?Borrower?), the other Loan Parties, SEACOR, JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, ?Agent?) for the Lenders and the Lenders party hereto. Capitali

February 12, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)* SEACOR Marine Holdings Inc (Name of Issuer) Common Stock, $0.01 par value (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule purs

February 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* SEACOR Marine Holdings Inc (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

February 5, 2021 SC 13G/A

Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXC

SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 4)* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSI

January 15, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 12, 2021 SEACOR Marine Holdings Inc.

January 15, 2021 EX-99.2

SEACOR MARINE COMPLETES SALE OF WINDFARM SUPPORT BUSINESS

Exhibit 99.2 PRESS RELEASE SEACOR MARINE COMPLETES SALE OF WINDFARM SUPPORT BUSINESS Houston, Texas January 15, 2021 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced that on January 12, 2021, SEACOR M

January 15, 2021 EX-99.1

SEACOR MARINE HOLDINGS INC. UNAUDITED PRO FORMA FINANCIAL INFORMATION

Exhibit 99.1 SEACOR MARINE HOLDINGS INC. UNAUDITED PRO FORMA FINANCIAL INFORMATION Windcat Sale On December 18, 2020, Seabulk Overseas Transport, Inc. (the “Seller”), a wholly-owned subsidiary of SEACOR Marine Holdings Inc. (the “Company”), entered into a Sale and Purchase Agreement (the “SPA”) to sell the Company’s Windcat Workboats crew transfer vessel (“CTV”) business through the sale of 100% o

December 18, 2020 EX-99.1

SEACOR MARINE AND CMB ANNOUNCE TRANSACTION FOR WINDFARM SUPPORT BUSINESS

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE AND CMB ANNOUNCE TRANSACTION FOR WINDFARM SUPPORT BUSINESS Houston, Texas; Antwerp, Belgium December 18, 2020 FOR IMMEDIATE RELEASE—SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, and Compag

December 18, 2020 EX-10.2

Letter Agreement, dated December 18, 2020, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc. and DNB Bank ASA, New York Branch, as facility agent and on behalf of the majority lenders (incorporated herein by reference to Exhibit 10.2 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on December 18, 2020 (File No. 001-37966)).

EX-10.2 Exhibit 10.2 Letter Agreement December 18, 2020 Reference is made to the credit agreement dated September 26, 2018 (as amended, supplemented or otherwise modified from time to time, the “Credit Agreement”) made by and among (i) SEACOR Marine Foreign Holdings Inc., a corporation incorporated under the laws of the Republic of the Marshall Islands (“Borrower”), as borrower, (ii) SEACOR Marine

December 18, 2020 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 18, 2020 SEACOR Marine Holdings Inc.

December 18, 2020 EX-10.1

Agreement for the Sale and Purchase of the Share Capital of Windcat Workboats Holdings Limited, dated December 18, 2020, by and among Seabulk Overseas Transport, Inc., CMB N.V. and SEACOR Marine Holdings Inc. (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on December 18, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 DATED 18 DECEMBER 2020 SEABULK OVERSEAS TRANSPORT, INC. as Seller CMB N.V. as Buyer SEACOR MARINE HOLDINGS INC. as Seller’s Guarantor AGREEMENT for the sale and purchase of the share capital of WINDCAT WORKBOATS HOLDINGS LIMITED Bryan Cave Leighton Paisner LLP Governor’s House 5 Laurence Pountney Hill London EC4R 0BR Tel: +44 (0)20 3400 1000 Fax: +44 (0)20 3400 1111 Contents C

November 5, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 5, 2020 SEACOR Marine Holdings Inc.

November 5, 2020 EX-99.1

SEACOR MARINE ANNOUNCES THIRD QUARTER 2020 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2020 RESULTS Houston, Texas November 5, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced results for its third quarter ended Septe

November 5, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 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 1-37966 SEACOR Marine Holdings Inc.

September 17, 2020 EX-99.2

SEACOR Marine Forms New Sustainability Council to Lead Enhanced ESG Program Discloses Sustainability Achievements and Plans Announces Receipt of ISO 14001 and 45001 Certifications

EX-99.2 Exhibit 99.2 PRESS RELEASE SEACOR Marine Forms New Sustainability Council to Lead Enhanced ESG Program Discloses Sustainability Achievements and Plans Announces Receipt of ISO 14001 and 45001 Certifications HOUSTON, September 17, 2020 – SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oi

September 17, 2020 EX-99.1

Forward-Looking Statement Certain statements discussed in this release as well as in other reports, materials and oral statements that the Company releases from time to time to the public constitute “forward-looking statements” within the meaning of

EX-99.1 Exhibit 99.1 Environmental, Social and Governance Investor Presentation September 2020Exhibit 99.1 Environmental, Social and Governance Investor Presentation September 2020 Forward-Looking Statement Certain statements discussed in this release as well as in other reports, materials and oral statements that the Company releases from time to time to the public constitute “forward-looking sta

September 17, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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): September 17, 2020 SEACOR Marine Holdings Inc.

August 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 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 1-37966 SEACOR Marine Holdings Inc.

August 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

August 6, 2020 EX-99.1

SEACOR MARINE ANNOUNCES SECOND QUARTER 2020 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES SECOND QUARTER 2020 RESULTS Houston, Texas August 6, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced results for its second quarter ended June

July 10, 2020 424B7

900,000 Shares of Common Stock

424B7 Table of Contents Filed pursuant to Rule 424(b)(7) Registration No. 333-238308 PROSPECTUS 900,000 Shares of Common Stock This prospectus relates to an offer and sale of up 900,000 shares of common stock, par value $0.01 per share (“common stock”), of SEACOR Marine Holdings Inc., by the selling stockholder. The selling stockholder may offer shares of our common stock, from time to time, in a

July 6, 2020 EX-99.1

SEACOR MARINE COMPLETES CONSOLIDATION OF SEACOSCO JOINT VENTURE

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE COMPLETES CONSOLIDATION OF SEACOSCO JOINT VENTURE Houston, Texas July 6, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced that on June 30, 2020,

July 6, 2020 8-K

Regulation FD Disclosure, 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, Completion of Acquisition or Disposition of Assets

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2020 SEACOR Marine Holdings Inc.

July 6, 2020 CORRESP

-

CORRESP SEACOR Marine Holdings Inc. 12121 Wickchester Lane, Suite 500 Houston, Texas 77079 July 6, 2020 VIA EDGAR Division of Corporation Finance U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: SEACOR Marine Holdings Inc. Registration Statement on Form S-3 File No. 333-238308 Ladies and Gentlemen: Reference is made to the Registration Statement on Form S-3 (No

July 6, 2020 EX-10.1

Amendment No. 3 to Credit Agreement and Parent Guaranty, dated as of June 29, 2020, by and among SEACOR Marine Foreign Holdings Inc., SEACOR Marine Holdings Inc., DNB Bank ASA, New York Branch, DNB Capital LLC, Clifford Capital Pte, Ltd, Hancock Whitney Bank, Citicorp North America, Inc., and the entities identified on schedules thereto (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on July 6, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 AMENDMENT NO. 3 TO CREDIT AGREEMENT AND PARENT GUARANTY THIS AMENDMENT NO. 3 TO CREDIT AGREEMENT AND PARENT GUARANTY (this “Amendment”) is made as of the 29 day of June, 2020, and amends and is supplemental to (a) that certain credit agreement dated as of September 26, 2018 (as may be amended, supplemented or otherwise modified from time to time, including by that certain Amen

June 29, 2020 EX-99.1

SEACOR MARINE ANNOUNCES AGREEMENT ON TAX REFUNDS

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES AGREEMENT ON TAX REFUNDS Houston, Texas June 29, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced that SEACOR Marine expects to receive

June 29, 2020 EX-10.1

Tax Refund and Indemnification Agreement, dated as of June 26, 2020, by and between SEACOR Marine Holdings Inc. and SEACOR Holdings Inc. (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on June 29, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 Execution Copy TAX REFUND AND INDEMNIFICATION AGREEMENT THIS TAX REFUND AND INDEMNIFICATION AGREEMENT (this “Agreement”), dated as of June 26, 2020, is made by and between SEACOR Holdings Inc. (“Holdings”), a Delaware corporation, and SEACOR Marine Holdings Inc. (“Marine”), a Delaware corporation. Each of Holdings and Marine shall be referred to herein from time to time as a “

June 29, 2020 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 SEACOR Marine Holdings Inc.

June 26, 2020 S-3/A

- S-3/A

S-3/A Table of Contents As filed with the United States Securities and Exchange Commission on June 26, 2020 Registration No.

June 11, 2020 8-K

Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2020 SEACOR Marine Holdings Inc.

June 9, 2020 S-8

- S-8

S-8 As filed with the Securities and Exchange Commission on June 9, 2020 Registration No.

June 9, 2020 SC 13G/A

SMHI / SEACOR Marine Holdings Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSIP Number) May 29, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this

June 4, 2020 CORRESP

-

CORRESP June 4, 2020 SEACOR Marine Holdings Inc. Registration Statement on Form S-3 File No. 333-238308 Ms. Loan Lauren Nguyen Division of Corporation Finance Office of Energy & Transportation Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-4628 Dear Ms. Nguyen, We note the receipt by SEACOR Marine Holdings Inc. (the “Company”) of the comment letter (the “Comment Lette

June 4, 2020 EX-99.1

SEACOR MARINE ANNOUNCES AGREEMENT TO CONSOLIDATE SEACOSCO JOINT

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES AGREEMENT TO CONSOLIDATE SEACOSCO JOINT VENTURE Houston, Texas June 4, 2020 FOR IMMEDIATE RELEASE—SEACOR Marine Holdings Inc. (NYSE: SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced that a wholly-own

June 4, 2020 EX-10.2

Parent Guarantee, dated May 31, 2020, by SEACOR Marine Holdings Inc. in favour of China Shipping Fan Tai Limited and China Shipping Industry (Hong Kong) Co., Limited (incorporated herein by reference to Exhibit 10.2 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on June 4, 2020 (File No. 001-37966)).

EX-10.2 Exhibit 10.2 Schedule 2 Form of Parent Guarantee PARENT GUARANTEE Dated 31 May 2020 By: (1) SEACOR MARINE HOLDINGS INC (the “Guarantor”) In favour of: (2) CHINA SHIPPING FAN TAI LIMITED (the “1st Beneficiary”) (3) CHINA SHIPPING INDUSTRY (HONG KONG) CO., LIMITED (the “2nd Beneficiary”). The 1st Beneficiary and the 2nd Beneficiary are together referred to as the Beneficiaries hereinunder. W

June 4, 2020 EX-10.1

Sale and Purchase Agreement, dated May 31, 2020, by and between China Shipping Fan Tai Limited, China Shipping Industry (Hong Kong) Co. Limited and SEACOR Offshore Asia LLC (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on June 4, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 SALE AND PURCHASE AGREEMENT RELATING TO 50% MEMBERSHIP INTEREST IN SEACOSCO OFFSHORE LLC CHINA SHIPPING FAN TAI LIMITED CHINA SHIPPING INDUSTRY (HONG KONG) CO., LIMITED AND SEACOR OFFSHORE ASIA LLC DATED 31 MAY 2020 [COURTESY CHINESE LANGUAGE TRANSLATION OMITTED AND AVAILABLE UPON REQUEST] 1 CONTENTS Clause Page 1. DEFINITIONS 4 2. Sale and Purchase of the Subject Shares 5 3.

June 4, 2020 EX-10.3

Form of Parent Guarantee by SEACOR Marine Holdings Inc. and COSCO Shipping Heavy Industry (Guangdong) Co., Ltd (incorporated herein by reference to Exhibit 10.3 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on June 4, 2020 (File No. 001-37966).

EX-10.3 Exhibit 10.3 PARENT GUARANTEE Dated 31st May 2020 By: (1) SEACOR MARINE HOLDINGS INC (the “Guarantor”) In favour of: (2) COSCO SHIPPING HEAVY INDUSTRY (GUANGDONG) CO., LTD (the “Beneficiary”). Whereas: (A) The Beneficiary and [SEACOSCO YANGTZE LLC] (the “Counterparty”) entered into a deferred payment agreement dated [18 January 2018] (as the same may be further amended, supplemented or mod

June 4, 2020 8-K

Regulation FD Disclosure, 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, DC 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 31, 2020 SEACOR Marine Holdings Inc.

May 15, 2020 S-3

- S-3

S-3 Table of Contents As filed with the United States Securities and Exchange Commission on May 15, 2020 Registration No.

May 11, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 11, 2020 SEACOR Marine Holdings Inc.

May 11, 2020 EX-99.1

SEACOR MARINE ANNOUNCES FIRST QUARTER 2020 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FIRST QUARTER 2020 RESULTS Houston, Texas May 11, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced results for its first quarter ended March 31,

May 11, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 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 1-37966 SEACOR Marine Holdings Inc.

May 1, 2020 EX-10.1

Sixth Consent and Agreement, dated April 29, 2020, by and among Falcon Global USA LLC, the other loan parties thereto, JPMorgan Chase Bank, N.A. and the lenders party thereto (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on May 1, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 SIXTH CONSENT AND AGREEMENT THIS SIXTH CONSENT AND AGREEMENT (this “Agreement”) is entered into on April 29, 2020, among Falcon Global USA LLC (“Borrower”), the other Loan Parties, JPMorgan Chase Bank, N.A., as administrative agent for the Lenders (in such capacity, “Agent”), issuing bank and security trustee and the Lenders party hereto, which constitute Required Lenders unde

May 1, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 29, 2020 SEACOR Marine Holdings Inc.

April 22, 2020 8-K

Regulation FD Disclosure

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 22, 2020 SEACOR Marine Holdings Inc.

April 22, 2020 DEF 14A

Schedule 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 20, 2020 EX-4.1

Registration Rights Agreement, dated as of March 20, 2020, by and between SEACOR Marine Holdings Inc. and Montco Offshore, LLC (incorporated herein by reference to Exhibit 4.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on March 20, 2020 (File No. 001-37966)).

EX-4.1 Exhibit 4.1 REGISTRATION RIGHTS AGREEMENT BY AND BETWEEN SEACOR MARINE HOLDINGS INC. AND MONTCO OFFSHORE, LLC TABLE OF CONTENTS ARTICLE I DEFINITIONS Section 1.01 Definitions 1 Section 1.02 Registrable Securities 2 ARTICLE II REGISTRATION RIGHTS Section 2.01 Mandatory Registration 3 Section 2.02 Failure to File or Become Effective; Liquidated Damages. 3 Section 2.03 Blackout and Delay Right

March 20, 2020 EX-99.1

SEACOR MARINE CONSOLIDATES OWNERSHIP OF LIFTBOAT BUSINESS IN SHARE TRANSACTION

EX-99.1 Exhibit 99.1 PRESS RELEASE SEACOR MARINE CONSOLIDATES OWNERSHIP OF LIFTBOAT BUSINESS IN SHARE TRANSACTION Houston, Texas March 20, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced that a

March 20, 2020 8-K

Regulation FD Disclosure, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 20, 2020 SEACOR Marine Holdings Inc.

March 9, 2020 8-K

Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2020 SEACOR Marine Holdings Inc.

March 4, 2020 10-K

Form 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTIONS 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (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, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1

March 4, 2020 EX-21.1

List of subsidiaries of SEACOR Marine Holdings Inc.

Exhibit 21.1 SEACOR MARINE HOLDINGS INC. SUBSIDIARIES AS OF DECEMBER 31, 2019 Jurisdiction of Incorporation/Formation Aaron S McCall LLC Delaware Alya McCall LLC Delaware C-Lift LLC Delaware Compania Empresarial Del Mar Y Navegacion S.A. de C.V. Mexico CTV Crewing Services Ltd England and Wales Cypress Ckor LLC Marshall Islands Falcon Diamond LLC Marshall Islands Falcon Global Holdings LLC Delawar

March 4, 2020 EX-4.11

Description of Registrant’s Securities.

Exhibit 4.11 DESCRIPTION OF SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following description sets forth material terms and provisions of the securities that are registered under Section 12 of the Securities Exchange Act of 1934, as amended. This information does not purport to be complete and is subject to, and is qualified in its entirety by reference

March 4, 2020 EX-99.1

SEACOR MARINE ANNOUNCES FOURTH QUARTER 2019 RESULTS

Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES FOURTH QUARTER 2019 RESULTS Houston, Texas March 4, 2020 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE:SMHI) (the “Company” or “SEACOR Marine”), a leading provider of marine and support transportation services to offshore oil and natural gas and wind farm facilities worldwide, today announced results for its fourth quarter and twelve m

March 4, 2020 EX-10.12

Compensation of Non-Employee Directors

Exhibit 10.12 Compensation of Non-Employee Directors Directors who are not employees of SEACOR Marine Holdings Inc. (the “Company”) receive an annual retainer of $50,000 and each of such directors is also granted options and Common Stock pursuant to the SEACOR Marine Holding Inc.'s 2017 Equity Incentive Plan (Exhibit 10.5 in this Annual Report on Form 10-K).

March 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 4, 2020 SEACOR Marine Holdings Inc.

February 12, 2020 SC 13G/A

SMHI / SEACOR Marine Holdings Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* SEACOR MARINE HOLDINGS INC (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

February 11, 2020 EX-10.1

Consent, Agreement and Omnibus Amendments, dated as of February 7, 2020, by and among Falcon Global USA LLC, the other loan parties thereto, SEACOR Marine Holdings Inc., JPMorgan Chase Bank, N.A. and the lenders party thereto (incorporated herein by reference to Exhibit 10.1 of SEACOR Marine Holdings Inc.’s Form 8-K filed with the Commission on February 11, 2020 (File No. 001-37966)).

EX-10.1 Exhibit 10.1 Execution Version CONSENT, AGREEMENT AND OMNIBUS AMENDMENTS THIS CONSENT, AGREEMENT AND OMNIBUS AMENDMENTS (this “Agreement”) is entered into on February 7, 2020, among Falcon Global USA LLC (“Borrower”), the other Loan Parties, SEACOR, JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, “Agent”) for the Lenders and the Lenders party hereto. Capitalized terms

February 11, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 7, 2020 SEACOR Marine Holdings Inc.

January 31, 2020 SC 13G/A

SMHI / SEACOR Marine Holdings Inc. / FABRIKANT CHARLES - SC 13G/A Passive Investment

SC 13G/A Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 3)* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSI

January 28, 2020 SC 13G/A

SMHI / SEACOR Marine Holdings Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* SEACOR Marine Holdings Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 78413P101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

December 20, 2019 8-K

Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 20, 2019 SEACOR Marine Holdings Inc.

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