MTUS / Metallus Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Metallus Inc.
US ˙ NYSE ˙ US8873991033

Mga Batayang Estadistika
LEI 549300QZTZWHDE9HJL14
CIK 1598428
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 Metallus 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-99.1

Metallus Announces Second-Quarter 2025 Results

Exhibit 99.1 Metallus Announces Second-Quarter 2025 Results • Net sales of $304.6 million with net income of $3.7 million and adjusted EBITDA(1) of $26.5 million • Operating cash flow of $34.8 million with ending cash and cash equivalents of $190.8 million • Invested $17.8 million in capital expenditures and deployed $3.3 million to repurchase common shares • During the quarter, the company settle

August 7, 2025 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 7, 2025 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.

August 7, 2025 10-Q

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

fa UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 METALLUS INC. (Exact

May 20, 2025 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 19, 2025 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.

May 20, 2025 EX-99.1

Metallus Promotes Kristopher R. Westbrooks to President and Chief Operating Officer; Appoints John M. Zaranec III as Executive Vice President and Chief Financial Officer

Exhibit 99.1 Metallus Promotes Kristopher R. Westbrooks to President and Chief Operating Officer; Appoints John M. Zaranec III as Executive Vice President and Chief Financial Officer CANTON, Ohio: May 20, 2025 – Metallus (NYSE: MTUS), a leader in high-quality specialty metals, manufactured components and supply chain solutions, today announced that Kristopher R. Westbrooks has been promoted to the

May 8, 2025 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 8, 2025 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S

May 8, 2025 EX-10.1

Form of Performance-Based Restricted Share Unit Agreement

Exhibit 10.1 METALLUS INC. Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of Metallus Inc. (f/k/a TimkenSteel Corporation) (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board, and the execution of

May 8, 2025 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 METALLUS INC. (Exact n

May 8, 2025 EX-99.1

Metallus Announces First-Quarter 2025 Results

Exhibit 99.1 Metallus Announces First-Quarter 2025 Results • Net sales of $280.5 million, an increase of 17 percent compared with the fourth quarter of 2024 • Net income of $1.3 million and adjusted EBITDA(1) of $17.7 million • Invested $27.5 million in capital expenditures and deployed $5.6 million to repurchase common shares • Cash and cash equivalents balance was $180.3 million with total liqui

May 8, 2025 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S

March 13, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     ) 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 O

March 13, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )

DEFA14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

February 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 1-36313 METALLUS INC. (Exact name

February 27, 2025 EX-24.1

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned Directors of Metallus Inc. hereby constitutes and appoints Kristine C. Syrvalin and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her na

February 27, 2025 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the consolidated financial statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by the Company United States EDC, Inc. Ohio 100.0% Metallus Material Servic

February 27, 2025 EX-19.1

Metallus Inc. Insider Trading Policies and Procedures

Exhibit 19.1 POLICY REGARDING TRADING IN STOCK AND PROHIBITING THE IMPROPER USE OR DISCLOSURE OF MATERIAL, NON-PUBLIC INFORMATION NOTE: There are two versions of this Policy. This version applies to Directors, executives, and certain other employees of Metallus Inc. (“Metallus” or “the Company”) and its subsidiaries who, because of their positions, are more likely to have access to material, non-p

February 27, 2025 EX-99.1

Metallus Announces Fourth-Quarter and Full-Year 2024 Results

EX-99.1 2 mtus-ex991.htm EX-99.1 Exhibit 99.1 Metallus Announces Fourth-Quarter and Full-Year 2024 Results • Net sales of $240.5 million in the fourth quarter and $1.1 billion for the full year • Fourth-quarter net loss of $21.4 million and full-year net income of $1.3 million with adjusted EBITDA(1) of $8.3 million in the fourth quarter and $77.7 million for the full year • Operating cash flow of

February 27, 2025 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 27, 2025 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number)

January 14, 2025 CORRESP

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer January 14, 2025 CORRESPONDENCE VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attn: Stephany Yang Melissa Gilmore Re: Metallus Inc. Form 10-K for the Year Ended December 31, 2023 Filed February 28, 2024 Form 8-K F

November 7, 2024 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 METALLUS INC. (Exa

November 7, 2024 EX-99.1

Metallus Announces Third-Quarter 2024 Results

Exhibit 99.1 Metallus Announces Third-Quarter 2024 Results • Net sales of $227.2 million with net loss of $5.9 million and adjusted EBITDA(1) of $6.1 million • Invested $17.6 million in capital expenditures and deployed $20.1 million to repurchase shares • Strong total liquidity(2) of $496.8 million as of September 30, 2024 • Company remains on track with investments to increase capacity in suppor

November 7, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 7, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (

August 8, 2024 EX-99.1

Metallus Announces Second-Quarter 2024 Results

Exhibit 99.1 Metallus Announces Second-Quarter 2024 Results • Net sales of $294.7 million with net income of $4.6 million and adjusted EBITDA(1) of $19.9 million • Operating cash flow of $8.3 million with ending cash and cash equivalents of $272.8 million • Invested $14.1 million in capital expenditures and deployed $9.6 million to repurchase common shares • Received initial payment from the U.S.

August 8, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 8, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.

August 8, 2024 10-Q

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

fa UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 METALLUS INC. (Exact

May 20, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.

May 9, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 9, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S

May 9, 2024 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 METALLUS INC. (Exact n

May 9, 2024 EX-10.2

Form of Time-Based Restricted Share Unit Agreement

Exhibit 10.2 METALLUS INC. Time-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of Metallus Inc. (f/k/a TimkenSteel Corporation) (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of service-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board, and the execution of a Restrict

May 9, 2024 EX-99.1

Metallus Announces First-Quarter 2024 Results

Exhibit 99.1 Metallus Announces First-Quarter 2024 Results • Net sales of $321.6 million with net income of $24.0 million and adjusted EBITDA(1) of $43.4 million • Operating cash flow of $33.4 million with ending cash and cash equivalents of $278.1 million • Invested $17.4 million in capital expenditures and deployed $4.4 million to repurchase common shares • On May 6, 2024, the company's Board of

May 9, 2024 EX-10.1

Form of Performance-Based Restricted Share Unit Agreement

Exhibit 10.1 METALLUS INC. Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of Metallus Inc. (f/k/a TimkenSteel Corporation) (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board, and the execution of

May 8, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S

March 12, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     ) 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 O

March 12, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

February 28, 2024 EX-3.1

Amended and Restated Articles of Incorporation, as amended

Exhibit 3.1 Exhibit 3.1 Exhibit 3.1 Exhibit 3.1 Change to the Name of the Company; Articles of Incorporation WHEREAS, the Board of Directors (the “Board”) of TimkenSteel Corporation, an Ohio corporation (the “Company”), deems it to be advisable and in the best interest of the Company to change its corporate name; and WHEREAS, the Board deems it to be advisable and in the best interest of the Compa

February 28, 2024 EX-97.1

Metallus Inc. Compensation Recovery Policy.

Exhibit 97.1 METALLUS INC. COMPENSATION RECOVERY POLICY (Adopted November 1, 2023) Introduction The Board of Directors (the “Board”) of Metallus Inc. (the “Company”) has adopted this Compensation Recovery Policy (the “Policy”), which provides for the recovery of certain executive compensation and related amounts in the event of an accounting restatement resulting from material noncompliance with f

February 28, 2024 EX-3.2

Code of Regulations of Metallus Inc.

Exhibit 3.2 CODE OF REGULATIONS OF METALLUS INC. ARTICLE I SHAREHOLDERS’ MEETINGS SECTION 1. Annual Meeting The annual meeting of shareholders for the election of Directors and for the consideration of such other business as may properly come before the meeting will be held on such date and at such time as the Directors may determine. In the event the annual meeting is not held or if Directors are

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 1-36313 METALLUS INC. (Exact name

February 28, 2024 EX-10.31

Form of Transformation Incentive Grant Performance-Based Restricted Share Unit Agreement for Tier 3 and 4 Participants

Exhibit 10.31 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board and the execution of a performan

February 28, 2024 EX-24.1

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned Directors of Metallus Inc. hereby constitutes and appoints Kristine C. Syrvalin and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her na

February 28, 2024 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the consolidated financial statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by the Company United States EDC, Inc. Ohio 100.0% Metallus Material Servic

February 28, 2024 EX-10.30

Form of Transformation Incentive Grant Performance-Based Restricted Share Unit Agreement for Tier 1 and 2 Participants

Exhibit 10.30 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board and the execution of a performan

February 27, 2024 EX-99.1

Metallus Announces Fourth-Quarter and Full-Year 2023 Results

Exhibit 99.1 Metallus Announces Fourth-Quarter and Full-Year 2023 Results • Net sales of $328.1 million in the fourth quarter and $1.4 billion for the full year • Fourth-quarter net income of $1.3 million and full-year net income of $69.4 million with adjusted EBITDA(1) of $35.7 million in the fourth quarter and $169.0 million for the full year • Operating cash flow of $74.1 million in the fourth

February 27, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 27, 2024 METALLUS INC. (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Number)

February 13, 2024 SC 13G/A

TMST / TimkenSteel Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02077-timkensteelcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: TimkenSteel Corp Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate t

February 9, 2024 SC 13G/A

TMST / TimkenSteel Corporation / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7 )* TimkenSteel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

February 2, 2024 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 30, 2024 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

December 18, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 15, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 2, 2023 EX-99.1

TimkenSteel Announces Third-Quarter 2023 Results

Exhibit 99.1 TimkenSteel Announces Third-Quarter 2023 Results • Net sales of $354.2 million with net income of $24.8 million and adjusted EBITDA(1) of $46.8 million • Operating cash flow of $28.1 million with cash and cash equivalents of $225.4 million at the end of September • Deployed $17.5 million of cash for capital expenditures and $7.7 million to repurchase common shares CANTON, Ohio: Novemb

November 2, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 2, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

November 2, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 TIMKENSTEEL CORPOR

August 3, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 TIMKENSTEEL CORPORATION

August 3, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 3, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

August 3, 2023 EX-99.1

TimkenSteel Announces Second-Quarter 2023 Results

Exhibit 99.1 TimkenSteel Announces Second-Quarter 2023 Results • Net sales of $356.6 million, an increase of 10 percent compared with the first quarter of 2023 • Net income of $28.9 million with adjusted EBITDA(1) of $50.5 million • Operating cash flow of $13.3 million with ending cash and cash equivalents of $221.9 million • Deployed $11.4 million of cash to repurchase common shares and $8.1 mill

August 2, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 2, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

May 4, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 4, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 4, 2023 EX-99

TimkenSteel Announces First-Quarter 2023 Results

Exhibit 99.1 TimkenSteel Announces First-Quarter 2023 Results • Net sales of $323.5 million, an increase of 32 percent compared with the fourth quarter of 2022 • Net income of $14.4 million with adjusted EBITDA(1) of $36.0 million • Operating cash flow of $9.8 million with ending cash and cash equivalents of $227.4 million • Deployed $28.1 million of cash to repurchase common shares and convertibl

May 4, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 1-36313 TIMKENSTEEL CORPORATIO

May 3, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

March 13, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

March 13, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 (a

February 24, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 1-36313 TIMKENSTEEL CORPORATION (

February 24, 2023 EX-24

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned Directors of TimkenSteel Corporation hereby constitutes and appoints Kristine C. Syrvalin and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his

February 24, 2023 EX-21

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the consolidated financial statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by the Company United States EDC, Inc. Ohio 100.0% TimkenSteel Material Ser

February 23, 2023 EX-99

TimkenSteel Announces Fourth-Quarter and Full-Year 2022 Results

Exhibit 99.1 TimkenSteel Announces Fourth-Quarter and Full-Year 2022 Results • Net sales of $245.4 million in the fourth-quarter and $1.3 billion for the full-year • Fourth-quarter net loss of $33.2 million and full-year net income of $65.1 million with adjusted EBITDA(1) of $11.9 million in the fourth-quarter and $172.2 million for the full-year • Operating cash flow of $23.7 million in the fourt

February 23, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 23, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 10, 2023 SC 13G/A

TMST / Timkensteel Corp / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6 )* TimkenSteel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

February 9, 2023 EX-10.2

Form of Performance-Based Restricted Share Unit Agreement

TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board and the execution of a performance-based Restricted Share Unit agreement in the form hereof (this “Agreement”) was authorized by a resolution of the Committee.

February 9, 2023 8-K

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, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 7, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

February 9, 2023 SC 13G/A

TMST / Timkensteel Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02046-timkensteelcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: TimkenSteel Corp. Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate

February 9, 2023 EX-10.1

Amended and Restated Annual Performance Award Plan, effective January 1, 2023 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed February 9, 2023, File No. 001-36313).

TIMKENSTEEL CORPORATION AMENDED AND RESTATED ANNUAL PERFORMANCE AWARD PLAN (Effective as of January 1, 2023) Purpose The purpose of the TimkenSteel Corporation Annual Performance Award Plan (the “Plan”) is to promote the profitable growth of TimkenSteel Corporation (the “Company”) by: • Recognizing corporate, business unit (if applicable) and individual performance achievement.

January 26, 2023 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 23, 2023 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

November 3, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? 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: 1-36313 TIMKENSTEEL CORPOR

November 3, 2022 EX-99.1

TimkenSteel Announces Third-Quarter 2022 Results

Exhibit 99.1 TimkenSteel Announces Third-Quarter 2022 Results ? Net sales of $316.8 million ? Net loss of $13.3 million with adjusted EBITDA(1) of $10.8 million ? Operating cash flow of $46.8 million with record ending cash and cash equivalents of $262.5 million CANTON, Ohio: November 3, 2022 ? TimkenSteel (NYSE: TMST), a leader in high-quality specialty steel, manufactured components, and supply

November 3, 2022 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 3, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

November 2, 2022 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 12, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 12, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 12, 2022 EX-99.1

TimkenSteel Announces Preliminary Third-Quarter 2022 Financial Results and Earnings Webcast Details

Exhibit 99.1 TimkenSteel Announces Preliminary Third-Quarter 2022 Financial Results and Earnings Webcast Details CANTON, Ohio: October 12, 2022 ?TimkenSteel Corp. (NYSE: TMST), a leader in high-quality specialty steel, manufactured components, and supply chain solutions, today announced preliminary third-quarter 2022 financial results. ?The end of July incident at our melt shop, which resulted in

October 5, 2022 EX-10.1

Fourth Amended and Restated Credit Agreement, dated as of September 30, 2022, by and among the Company, the other loan parties and lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.1 to the Company's Current report on Form 8-K filed on October 5, 2022, File No.001-36313).

EXECUTION COPY FOURTH AMENDED AND RESTATED CREDIT AGREEMENT dated as of September 30, 2022 among TIMKENSTEEL CORPORATION, The Other Loan Parties From Time to Time Party Hereto, The Lenders From Time to Time Party Hereto, and JPMORGAN CHASE BANK, N.

October 5, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 30, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fi

September 22, 2022 CORRESP

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer September 22, 2022 CORRESPONDENCE VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attn: Beverly Singleton Andrew Blume Re: TimkenSteel Corporation Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February

August 4, 2022 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 4, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

August 4, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? 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: 1-36313 TIMKENSTEEL CORPORATION

August 4, 2022 EX-99.1

TimkenSteel Announces Second-Quarter 2022 Results

Exhibit 99.1 TimkenSteel Announces Second-Quarter 2022 Results ? Net sales of $415.7 million reflects continued strength in customer demand, higher base prices and an increase in raw material surcharges ? Net income of $74.5 million with record adjusted EBITDA(1) of $84.2 million ? Strong operating cash flow of $50.7 million CANTON, Ohio: August 4, 2022 ? TimkenSteel (NYSE: TMST), a leader in high

July 13, 2022 EX-99.1

TimkenSteel to Purchase Group Annuity Contract for Retiree Pension Benefits

TimkenSteel to Purchase Group Annuity Contract for Retiree Pension Benefits CANTON, Ohio: July 13, 2022 ? TimkenSteel (NYSE: TMST), a leader in high-quality specialty steel, manufactured components, and supply chain solutions, on July 7, 2022, entered into an agreement to purchase a group annuity contract from The Prudential Insurance Company of America (?Prudential?) to settle approximately $250 million of the company?s approximate $800 million in U.

July 13, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 7, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Num

July 11, 2022 CORRESP

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer

Kristopher R. Westbrooks Executive Vice President and Chief Financial Officer July 11, 2022 CORRESPONDENCE VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, NE Washington, D.C. 20549 Attn: Beverly Singleton Andrew Blume Re: TimkenSteel Corporation Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 24,

May 5, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 4, 2022 EX-10.1

Form of Performance-Based Restricted Share Unit Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on May 4, 2022, File No. 001-36313).

Exhibit 10.1 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Agreement WHEREAS, (?Grantee?) is an employee of TimkenSteel Corporation (the ?Company?) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the ?Committee?) of the Board and the execution of a performanc

May 4, 2022 EX-99.1

TimkenSteel Announces First-Quarter 2022 Results

TimkenSteel Announces First-Quarter 2022 Results ? Net sales of $352.0 million in the first quarter reflect strength in customer demand and higher base prices ? Net income of $37.1 million with adjusted EBITDA(1) of $65.3 million ? Operating cash flow of $13.3 million CANTON, Ohio: May 4, 2022 ? TimkenSteel (NYSE: TMST), a leader in high-quality specialty steel, manufactured components, and supply

May 4, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? 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: 1-36313 TIMKENSTEEL CORPORATIO

May 4, 2022 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 4, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 4, 2022 EX-10.2

TimkenSteel Corporation Amended and Restated Annual Performance Award Plan

Exhibit 10.2 TIMKENSTEEL CORPORATION AMENDED AND RESTATED ANNUAL PERFORMANCE AWARD PLAN (Effective as of January 1, 2022) Purpose The purpose of the TimkenSteel Corporation Annual Performance Award Plan (the ?Plan?) is to promote the profitable growth of TimkenSteel Corporation (the ?Company?) by: ? Recognizing corporate, business unit (if applicable) and individual performance achievement. ? Attr

March 17, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the

March 17, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 (a

February 24, 2022 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 24, 2022 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 24, 2022 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the consolidated financial statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by the Company United States EDC, Inc. Ohio 100.0% TimkenSteel Material Ser

February 24, 2022 EX-99.1

TimkenSteel Announces Fourth-Quarter and Full-Year 2021 Results

TimkenSteel Announces Fourth-Quarter and Full-Year 2021 Results ? Net sales of $338.

February 24, 2022 EX-99.2

TimkenSteel Corporation Investor Presentation February 24, 2022

TimkenSteel Corporation Investor Presentation February 24, 2022 Forward-looking statements & non-GAAP financial measures Forward-looking statements This presentation includes "forward-looking" statements within the meaning of the federal securities laws.

February 24, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number: 1-36313 TIMKENSTEEL CORPORATION (

February 24, 2022 EX-24.1

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned Directors of TimkenSteel Corporation hereby constitutes and appoints Kristine C. Syrvalin and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his

February 10, 2022 SC 13G/A

TMST / Timkensteel Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: TimkenSteel Corp. Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??R

February 8, 2022 SC 13G/A

TMST / Timkensteel Corp / DIMENSIONAL FUND ADVISORS LP - 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. 5 )* TimkenSteel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

December 20, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 04, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 4, 2021 EX-99.1

TimkenSteel Announces Third-Quarter 2021 Results

Exhibit 99.1 TimkenSteel Announces Third-Quarter 2021 Results ? Third quarter net sales of $343.7 million increased 5 percent sequentially ? Net income of $50.1 million and record adjusted EBITDA(1) of $72.0 million ? Strong operating cash flow of $53.8 million, a 37 percent sequential improvement, with record total liquidity(2) of $444.4 million CANTON, Ohio: November 4, 2021 ? TimkenSteel (NYSE:

November 4, 2021 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ?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: 1-36313 TIMKENSTEEL CORPORAT

August 12, 2021 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 12, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

August 5, 2021 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ?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: 1-36313 TIMKENSTEEL CORPORATION (

August 5, 2021 EX-24.1

Powers of Attorney

EXHIBIT 24.1 TIMKENSTEEL CORPORATION REGISTRATION STATEMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the ?Registrant?), hereby constitutes and appoints Kristine C. Syrvalin, Kristopher R. Westbrooks and Nicholas A. Yacobozzi, or any of them, each acting alone, as the true a

August 5, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 05, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

August 5, 2021 EX-99.1

TimkenSteel Announces Second-Quarter 2021 Results

Exhibit 99.1 TimkenSteel Announces Second-Quarter 2021 Results ? Net sales of $327.3 million increased 20 percent sequentially on continued strength in industrial end-market demand ? Record profitability with net income of $54.0 million and adjusted EBITDA(1) of $71.0 million ? Operating cash flow of $39.2 million resulted in further expansion of total liquidity(2) CANTON, Ohio: August 5, 2021 - T

August 5, 2021 S-8

As filed with the Securities and Exchange Commission on August 5, 2021

As filed with the Securities and Exchange Commission on August 5, 2021 Registration No.

May 6, 2021 EX-10.1

Form of Performance-Based Restricted Share Unit Agreement

Exhibit 10.1 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Agreement WHEREAS, (?Grantee?) is an employee of TimkenSteel Corporation (the ?Company?) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the ?Committee?) of the Board and the execution of a performanc

May 6, 2021 EX-10.1

TimkenSteel Corporation Amended and Restated 2020 Equity and Incentive Compensation Plan

Exhibit 10.1 TIMKENSTEEL CORPORATION Amended and Restated 2020 EQUITY and INCENTIVE Compensation PLAN 1.Purpose. The purpose of this Plan is to permit award grants to non-employee Directors, officers and other employees of the Company and its Subsidiaries, and certain consultants to the Company and its Subsidiaries, and to provide to such persons incentives and rewards for service and/or performan

May 6, 2021 EX-10.2

Form of Time-Based Restricted Share Unit Agreement

Exhibit 10.2 TIMKENSTEEL CORPORATION Time-Based Restricted Share Unit Agreement WHEREAS, (?Grantee?) is an employee of TimkenSteel Corporation or a Subsidiary thereof; and WHEREAS, the grant of service-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the ?Committee?) of the Board, and the execution of a Restricted Share Unit Agreement in t

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ?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: 1-36313 TIMKENSTEEL CORPORATION

May 6, 2021 EX-99.1

TimkenSteel Announces First-Quarter 2021 Results

Exhibit 99.1 TimkenSteel Announces First-Quarter 2021 Results • Net sales of $273.6M increased 30% sequentially • Net income of $9.8 million and adjusted EBITDA(1) of $40.8 million, a significant improvement both sequentially and compared with the prior-year quarter • Record total liquidity(2) of $357.5 million • Completed transition to single melt and casting shop at Faircrest facility CANTON, Oh

May 6, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 5, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

March 19, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 (a

March 18, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the

March 5, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 07)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 07)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) February 23, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

March 5, 2021 EX-1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree and consent to the joint filing on behalf of each of them of a Statement on Schedule 13G filed on March 5, 2021 (including additional amendments thereto) with respect to the common shares, without par value, of TimkenSteel Corporation. Th

February 25, 2021 EX-24.1

Power of Attorney.

Exhibit 24.1 TIMKENSTEEL CORPORATIONANNUAL REPORT ON FORM 10-KPOWER OF ATTORNEYKNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of TimkenSteel Corporation hereby constitutes and appoints Kristine C. Syrvalin and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his or her true and lawful attorneys-in-fact and agents, with full power of substitution and re

February 25, 2021 EX-10.24

Restricted Share Unit Inducement Award Agreement dated as of January 5, 2021 by and between TimkenSteel Corporation and Michael S. Williams.

Exhibit 10.24 TIMKENSTEEL CORPORATION Restricted Share Unit Inducement Award Agreement WHEREAS, Michael S. Williams (?Grantee?) is an employee of TimkenSteel Corporation or a Subsidiary thereof; WHEREAS, the grant of service-based restricted share units evidenced hereby (the ?Grant?) was authorized by a resolution of the Compensation Committee (including any successors, the ?Committee?) of the Boa

February 25, 2021 EX-10.25

Performance-Based Restricted Share Unit Inducement Award Agreement dated as of January 5, 2021 by and between TimkenSteel Corporation and Michael S. Williams.

Exhibit 10.25 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Inducement Award Agreement WHEREAS, Michael S. Williams (?Grantee?) is an employee of TimkenSteel Corporation (the ?Company?) or a Subsidiary thereof; WHEREAS, the grant of performance-based restricted share units evidenced hereby (the ?Grant?) was authorized by a resolution of the Compensation Committee (including any s

February 25, 2021 EX-10.27

Form of Severance Agreement between TimkenSteel and Certain Executive Officers.

Exhibit 10.27 SEVERANCE AGREEMENT This Severance Agreement (the ?Agreement?) is dated as of , 20 between TimkenSteel Corporation, an Ohio corporation (the ?Company?), and (the ?Employee?). Recitals WHEREAS, the Employee is a key employee of the Company and has made and/or is expected to make major contributions to the profitability, growth and financial strength of the Company; WHEREAS, the Compan

February 25, 2021 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the Consolidated Financial Statements of the Company and its subsidiaries) are as follows: Name United States State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by Company EDC, Inc.Ohio100.0% TimkenSteel Mater

February 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 25, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 25, 2021 EX-10.26

Severance Agreement dated as of January 1, 2021 between TimkenSteel Corporation and Michael S. Williams.

Exhibit 10.26 SEVERANCE AGREEMENT This Severance Agreement (the ?Agreement?) is dated as of January 1, 2021 between TimkenSteel Corporation, an Ohio corporation (the ?Company?), and Michael S. Williams (the ?Employee?). Recitals WHEREAS, the Employee is a key employee of the Company and has made and/or is expected to make major contributions to the profitability, growth and financial strength of t

February 25, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 1-36313 TIMKENSTEEL CORPORATION (Ex

February 25, 2021 EX-99.1

TimkenSteel Announces Fourth-Quarter and Full-Year 2020 Results

Exhibit 99.1 TimkenSteel Announces Fourth-Quarter and Full-Year 2020 Results ? Record full-year operating cash flow of $173.5 million, including $52.5 million in the fourth quarter ? Record total liquidity(1) of $314.1 million at year-end ? Net sales of $211.2 million in the fourth quarter reflecting improving customer demand ? Fourth quarter net loss of $12.8 million with adjusted EBITDA(2) of $2

February 24, 2021 EX-24.1

Powers of Attorney

Exhibit 24.1 TIMKENSTEEL CORPORATION POST-EFFECTIVE AMENDMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the ?Registrant?), hereby constitutes and appoints Michael S. Williams, Kristopher R. Westbrooks and Kristine C. Syrvalin, or any of them, each acting alone, as the true a

February 24, 2021 S-8 POS

- FORM S-8 POS

As filed with the Securities and Exchange Commission on February 24, 2021. Registration No. 333-197076 Registration No. 333-197077 Registration No. 333-197079 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197076 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197077 POST-EFFE

February 24, 2021 S-8 POS

- FORM S-8 POS

As filed with the Securities and Exchange Commission on February 24, 2021. Registration No. 333-197076 Registration No. 333-197077 Registration No. 333-197079 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197076 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197077 POST-EFFE

February 24, 2021 S-8 POS

- FORM S-8 POS

As filed with the Securities and Exchange Commission on February 24, 2021. Registration No. 333-197076 Registration No. 333-197077 Registration No. 333-197079 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197076 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-197077 POST-EFFE

February 24, 2021 EX-24.1

Powers of Attorney

Exhibit 24.1 TIMKENSTEEL CORPORATION POST-EFFECTIVE AMENDMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the ?Registrant?), hereby constitutes and appoints Michael S. Williams, Kristopher R. Westbrooks and Kristine C. Syrvalin, or any of them, each acting alone, as the true a

February 24, 2021 EX-24.1

Powers of Attorney

Exhibit 24.1 TIMKENSTEEL CORPORATION POST-EFFECTIVE AMENDMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the “Registrant”), hereby constitutes and appoints Michael S. Williams, Kristopher R. Westbrooks and Kristine C. Syrvalin, or any of them, each acting alone, as the true a

February 16, 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. 4 )* TimkenSteel Corp (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (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 this Sched

February 16, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Material Impairments

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 10, 2021 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities)

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) Calendar Year 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

February 12, 2021 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ex991tmst.htm EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree and consent to the joint filing on behalf of each of them of a Statement on Schedule 13G filed on February 12, 2021 (including additional amendments thereto) with respect to the common shares, without par v

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: TimkenSteel Corp. Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ R

January 5, 2021 EX-4.3

Time-Based Restricted Share Unit Inducement Award Agreement, by and between the Registrant and Michael S. Williams, dated as of January 5, 2021

EX-4.3 2 d12433dex43.htm EX-4.3 Exhibit 4.3 TIMKENSTEEL CORPORATION Restricted Share Unit Inducement Award Agreement WHEREAS, Michael S. Williams (“Grantee”) is an employee of TimkenSteel Corporation or a Subsidiary thereof; WHEREAS, the grant of service-based restricted share units evidenced hereby (the “Grant”) was authorized by a resolution of the Compensation Committee (including any successor

January 5, 2021 S-8

- FORM S-8

Form S-8 As filed with the Securities and Exchange Commission on January 5, 2021 Registration No.

January 5, 2021 EX-4.4

Performance-Based Restricted Share Unit Inducement Award Agreement, by and between the Registrant and Michael S. Williams, dated as of January 5, 2021

EX-4.4 Exhibit 4.4 TIMKENSTEEL CORPORATION Performance-Based Restricted Share Unit Inducement Award Agreement WHEREAS, Michael S. Williams (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; WHEREAS, the grant of performance-based restricted share units evidenced hereby (the “Grant”) was authorized by a resolution of the Compensation Committee (including

January 5, 2021 EX-24.1

Powers of Attorney

EXHIBIT 24.1 TIMKENSTEEL CORPORATION REGISTRATION STATEMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the “Registrant”), hereby constitutes and appoints Michael S. Williams, Kristopher R. Westbrooks and Kristine C. Syrvalin, or any of them, each acting alone, as the true and

December 18, 2020 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 - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 16, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

December 18, 2020 EX-99.1

TimkenSteel Announces Executive Leadership Changes

EX-99.1 Exhibit 99.1 NEWS RELEASE TimkenSteel Announces Executive Leadership Changes • Michael S. Williams Appointed President and Chief Executive Officer • Interim CEO Terry L. Dunlap to Remain on Board of Directors and Resume Role as Independent Director • Executive Vice President and General Counsel Frank A. DiPiero to step down at end of 2020 • Kristine C. Syrvalin promoted to Executive Vice P

December 15, 2020 EX-4.2

Second Supplemental Indenture, dated December 15, 2020, by and between the Company and U.S. Bank National Association, as Trustee (including Form of New Convertible Note).

EX-4.2 Exhibit 4.2 TIMKENSTEEL CORPORATION AND U.S. BANK NATIONAL ASSOCIATION, as Trustee SECOND SUPPLEMENTAL INDENTURE Dated as of December 15, 2020 6.00% Convertible Senior Notes due 2025 TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01. Scope 2 Section 1.02. Definitions 2 Section 1.03. References to Interest 10 Section 1.04. References to Principal 11 ART

December 15, 2020 8-K

Entry into 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

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 15, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

December 8, 2020 EX-10.1

Form of Exchange Agreement.

EX-10.1 Exhibit 10.1 TIMKENSTEEL CORPORATION CONVERTIBLE NOTES EXCHANGE AGREEMENT December 7, 2020 [] (the “Undersigned”), for itself and on behalf of the beneficial owners listed on Exhibit A hereto (the “Accounts”) for whom the Undersigned holds contractual and investment authority (each Account, as well as the Undersigned if it is exchanging Old Notes (as defined below) hereunder, a “Holder”),

December 8, 2020 8-K

Entry into 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 - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 7, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 29, 2020 EX-99.1

TimkenSteel Announces Third-Quarter 2020 Results

Exhibit 99.1 TimkenSteel Announces Third-Quarter 2020 Results • Net sales increased 34 percent sequentially driven by the recovery in automotive demand • Strong operating cash flow generation of $41.1 million in the third quarter of 2020 represented the sixth consecutive quarter of positive operating cash flow • Total liquidity, which represents available borrowing capacity plus cash and cash equi

October 29, 2020 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 29, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 29, 2020 EX-10.1

Form of Performance-Based Restricted Share Unit Agreement

Exhibit 10.1 Performance-Based Restricted Share Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Share Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board and the execution of a performance-based Restricted Share

October 29, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒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: 1-36313 TI

August 6, 2020 EX-99.1

TimkenSteel Announces Second-Quarter 2020 Results

Exhibit 99.1 TimkenSteel Announces Second-Quarter 2020 Results CANTON, Ohio: August 6, 2020 - TimkenSteel (NYSE: TMST), a leader in customized alloy steel products and services, today reported second-quarter 2020 net sales of $154.0 million and a net loss of $15.3 million. In the same quarter last year, net sales were $336.7 million with net loss of $11.9 million. Adjusted EBITDA(1) for the second

August 6, 2020 EX-10.1

Form Director Restricted Share Unit Agreement

Exhibit 10.1 TIMKENSTEEL Corporation Director Restricted Share Unit Agreement WHEREAS, (“Grantee”) is a non-employee Director of TimkenSteel Corporation (the “Company”); and WHEREAS, the grant of Restricted Share Units evidenced hereby was authorized by a resolution of the Board of Directors and is effective [] (the “Date of Grant”), and the execution of a Director Restricted Share Units Agreement

August 6, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒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: 1-36313 TIMKENS

August 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 6, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

June 18, 2020 11-K

- 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 18, 2020 11-K

- 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 18, 2020 11-K

- 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ☒ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

May 7, 2020 EX-10.1

Form Performance-Based Restricted Stock Unit Agreement

Exhibit 10.1 TIMKENSTEEL CORPORATION Performance-Based Restricted Stock Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Stock Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board that was duly adopted on February

May 7, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 7, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 7, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

May 7, 2020 EX-99.1

TimkenSteel Announces First-Quarter 2020 Results

Exhibit 99.1 TimkenSteel Announces First-Quarter 2020 Results • Strong operating cash flow of $63.8 million drove improvement in total available liquidity to $290 million as of March 31, 2020 • Company achieved first-quarter 2020 shipment, net income (loss) and EBITDA guidance • Additional cost reduction actions taken in response to rapidly changing business environment • Company remains operation

May 7, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒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: 1-36313 TIMKEN

May 7, 2020 EX-10.1

TimkenSteel Corporation 2020 Equity and Incentive Compensation Plan

EX-10.1 2 d830971dex101.htm EX-10.1 Exhibit 10.1 TIMKENSTEEL CORPORATION 2020 EQUITY AND INCENTIVE COMPENSATION PLAN 1. Purpose. The purpose of this Plan is to permit award grants to non-employee Directors, officers and other employees of the Company and its Subsidiaries, and certain consultants to the Company and its Subsidiaries, and to provide to such persons incentives and rewards for service

May 6, 2020 S-8

- S-8

S-8 As filed with the Securities and Exchange Commission on May 6, 2020 Registration No.

May 6, 2020 EX-24.1

Powers of Attorney

EX-24.1 EXHIBIT 24.1 TIMKENSTEEL CORPORATION REGISTRATION STATEMENT ON FORM S-8 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned officers and directors of TimkenSteel Corporation, an Ohio corporation (the “Registrant”), hereby constitutes and appoints Frank A. DiPiero, Kristopher R. Westbrooks and Kristine C. Syrvalin, or any of them, each acting alone, as the tru

April 9, 2020 DEFA14A

TMST / TimkenSteel Corporation DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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

March 24, 2020 SC 13D/A

TMST / TimkenSteel Corporation / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Per

March 18, 2020 DEF 14A

TimkenSteel Corporation 2020 Equity and Incentive Compensation Plan (incorporated herein by reference to Appendix B to the Registrant’s definitive proxy statement on Schedule 14A filed with the Commission on March 18, 2020 (Commission File No. 001-36313))

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

February 25, 2020 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the Consolidated Financial Statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by Company United States EDC, Inc. Ohio 100.0% TimkenSteel Material Service

February 25, 2020 10-K

Annual Report on Form 10-K for the year ended December 31, 2019

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ý 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 o 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: 1-36313 TIMKENSTEEL CORPORATION (Ex

February 25, 2020 EX-24.1

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of TimkenSteel Corporation hereby constitutes and appoints Frank A. DiPiero and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in

February 25, 2020 EX-4.3

Exhibit 4.3

Exhibit 4.3 DESCRIPTION OF COMMON SHARES The common stock, without par value, of TimkenSteel Corporation is the only class of our securities registered under Section 12 of the Securities Exchange Act of 1934 (the “Exchange Act”). The following summary of our common shares is based on and qualified by our Amended and Restated Articles of Incorporation (the “Articles of Incorporation”), our Code of

February 25, 2020 EX-18.1

Letter of Independent Registered Public Accounting Firm Regarding Change in Accounting Principle

Exhibit 18.1 February 25, 2020 Board of Directors TimkenSteel Corporation 1835 Dueber Ave. SW Canton, Ohio 44706 Ladies and Gentlemen: Note 1 of the Notes to the Consolidated Financial Statements of TimkenSteel Corporation included in its Annual Report on Form 10-K for the year ended December 31, 2019 describes a change in the method of accounting for inventory valuation from the last-in, first-ou

February 21, 2020 EX-99.1

TimkenSteel Announces Fourth-Quarter and Full-Year 2019 Results

NEWS RELEASE TimkenSteel Announces Fourth-Quarter and Full-Year 2019 Results • Aggressive actions taken to improve future profitability and cash generation while strengthening customer-centric focus • Cash from operations was $46 million in the fourth quarter of 2019 and $70 million for full-year 2019 primarily driven by inventory reductions • Company changed inventory valuation method from LIFO t

February 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 20, 2020 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 14, 2020 SC 13G

TMST / TimkenSteel Corporation / LUMINUS MANAGEMENT LLC - SC 13G Passive Investment

UNITED STATES 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 (Amendment No. )* TIMKENSTEEL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2019 (Date of Eve

February 12, 2020 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 tmst2019.htm EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree and consent to the joint filing on behalf of each of them of a Statement on Schedule 13G filed on February 12, 2020 (including additional amendments thereto) with respect to the common shares, without par va

February 12, 2020 SC 13G/A

TMST / TimkenSteel Corporation / Timken Foundation of Canton - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) Calendar Year 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

February 12, 2020 SC 13G/A

TMST / TimkenSteel Corporation / 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. 3)* TIMKENSTEEL CORP (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (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 this Schedu

February 12, 2020 SC 13G/A

TMST / TimkenSteel Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: TimkenSteel Corp Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Ru

November 19, 2019 8-K

Costs Associated with Exit or Disposal Activities

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 14, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 15, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 13, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 6, 2019 10-Q

TMST / TimkenSteel Corporation 10-Q - Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR o 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: 1-36313 TIMKENSTEEL CORPOR

November 6, 2019 EX-99.1

TimkenSteel Announces Third-Quarter 2019 Results

NEWS RELEASE TimkenSteel Announces Third-Quarter 2019 Results CANTON, Ohio: November 6, 2019 - TimkenSteel (NYSE: TMST), a leader in customized alloy steel products and services, today reported 2019 third-quarter net sales of $274.

November 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 6, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 17, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 15, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 17, 2019 EX-10.1

Third Amended and Restated Credit Agreement dated as of October 15, 2019, by and among TimkenSteel Corporation, the other loan parties and lenders party thereto, JPMorgan Chase Bank, N.A., as administrative agent, Bank of America, N.A., as syndication agent, and BMO Harris Bank N.A. and U.S. Bank National Association, as co-documentation agents.

EXECUTION COPY THIRD AMENDED AND RESTATED CREDIT AGREEMENT dated as of October 15, 2019 among TIMKENSTEEL CORPORATION The Other Loan Parties From Time to Time Party Hereto The Lenders From Time to Time Party Hereto JPMORGAN CHASE BANK, N.

October 9, 2019 EX-99.1

TimkenSteel Announces CEO Transition Tim Timken Steps Down as Chief Executive Officer; Terry L. Dunlap Appointed as Interim Chief Executive Officer and President

EX-99.1 Exhibit 99.1 NEWS RELEASE TimkenSteel Announces CEO Transition Tim Timken Steps Down as Chief Executive Officer; Terry L. Dunlap Appointed as Interim Chief Executive Officer and President CANTON, Ohio, October 9, 2019 – TimkenSteel (NYSE: TMST), a leader in customized alloy steel products and services, today announced that Ward J. “Tim” Timken, Jr. has stepped down as Chief Executive Offic

October 9, 2019 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

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 8, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission F

September 10, 2019 SC 13D/A

TMST / TimkenSteel Corporation / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Per

August 23, 2019 EX-99.1

Directors and Executive Officers of TimkenSteel Corporation

Exhibit 99.1 To: Directors and Executive Officers of TimkenSteel Corporation From: Frank A. DiPiero, Executive Vice President, General Counsel and Secretary Date: August 20, 2019 Re: Notice Regarding Blackout Period and Regulation BTR Trading Restrictions The purpose of this notice is to inform you of temporary restrictions on your ability, directly or indirectly, to buy, sell or transfer certain

August 23, 2019 8-K

Temporary Suspension of Trading Under Registrant's Employee Benefit Plans, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 20, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

August 12, 2019 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 8, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

August 1, 2019 EX-99.1

TimkenSteel Announces Second Quarter of 2019 Results

NEWS RELEASE TimkenSteel Announces Second Quarter of 2019 Results CANTON, Ohio: August 1, 2019 - TimkenSteel (NYSE: TMST), a leader in customized alloy steel products and services, today reported 2019 second quarter net sales of $336.

August 1, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 1, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

August 1, 2019 10-Q

TMST / TimkenSteel Corporation 10-Q - Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR o 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: 1-36313 TIMKENSTEEL CORPORATION

July 8, 2019 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 8, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Num

June 18, 2019 11-K

TMST / TimkenSteel Corporation 11-K - - FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 18, 2019 11-K

TMST / TimkenSteel Corporation 11-K - - FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 18, 2019 11-K

TMST / TimkenSteel Corporation 11-K - - FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 18, 2019 11-K

TMST / TimkenSteel Corporation 11-K - - FORM 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

May 9, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 7, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 2, 2019 EX-99.1

TimkenSteel Announces First-Quarter 2019 Results

NEWS RELEASE TimkenSteel Announces First-Quarter 2019 Results • Delivers net income and EBITDA in line with guidance.

May 2, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 2, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 2, 2019 EX-10.2

Form of Time-Based Restricted Stock Unit Agreement

EX-10.2 3 tmstexhibit102-timexbasedr.htm EXHIBIT 10.2 Exhibit 10.2 TIMKENSTEEL CORPORATION Time-Based Restricted Stock Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of service-based Restricted Stock Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of

May 2, 2019 EX-10.3

Form of Time-Based Ratable Restricted Stock Unit Agreement

EX-10.3 4 tmstexhibit103-timexbasedr.htm EXHIBIT 10.3 Exhibit 10.3 TIMKENSTEEL CORPORATION Time-Based Restricted Stock Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary; and WHEREAS, the grant of Restricted Stock Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board that was dul

May 2, 2019 10-Q

TMST / TimkenSteel Corporation 10-Q Quarterly Report 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR o 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: 1-36313 TIMKENSTEEL CORPORATIO

May 2, 2019 EX-10.4

Form of Performance Shares Agreement

EX-10.4 5 tmstexhibit104-performance.htm EXHIBIT 10.4 Exhibit 10.4 TIMKENSTEEL CORPORATION Performance-Based Restricted Stock Unit Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary thereof; and WHEREAS, the grant of performance-based Restricted Stock Units evidenced hereby was authorized by a resolution of the Compensation Committee (the “Comm

May 2, 2019 EX-10.1

Form of Nonqualified Stock Option Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on May 2, 2019, File No. 001-36313).

Exhibit 10.1 TRANSFERABLE TIMKENSTEEL CORPORATION Nonqualified Stock Option Agreement WHEREAS, (“Optionee”) is an employee of TimkenSteel Corporation (the “Company”); and WHEREAS, the grant of Option Rights evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of the Company that was duly adopted on February 13, 2019

May 2, 2019 EX-10.5

Form of Deferred Shares Agreement (Cliff Vesting)

EX-10.5 6 tmstexhibit105-deferredsha.htm EXHIBIT 10.5 Exhibit 10.5 TIMKENSTEEL CORPORATION Deferred Shares Agreement WHEREAS, (“Grantee”) is an employee of TimkenSteel Corporation (the “Company”) or a Subsidiary; and WHEREAS, the grant of Deferred Shares evidenced hereby was authorized by a resolution of the Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of the Co

March 19, 2019 DEF 14A

TMST / TimkenSteel Corporation DEF 14A

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

February 20, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 20, 2019 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fil

February 20, 2019 EX-99.1

TimkenSteel Announces Fourth-Quarter, Full-Year 2018 Results; Exceeds Guidance for Quarter

NEWS RELEASE TimkenSteel Announces Fourth-Quarter, Full-Year 2018 Results; Exceeds Guidance for Quarter • Fourth-quarter net sales increased 19 percent year over year with improved product mix, higher prices and increased volume • Company positioned to deliver earnings growth in 2019 CANTON, Ohio: February 20, 2019 - TimkenSteel (NYSE: TMST, timkensteel.

February 20, 2019 EX-24.1

Power of Attorney.

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned Director of TimkenSteel Corporation hereby constitutes and appoints Frank A. DiPiero and Kristopher R. Westbrooks, and each of them (each with full power to act alone), his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in

February 20, 2019 10-K

TMST / TimkenSteel Corporation 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o 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: 1-36313 TIMKENSTEEL CORPORATION (Ex

February 20, 2019 EX-21.1

A list of subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries of the Registrant The active subsidiaries of the Company (all of which are included in the Consolidated Financial Statements of the Company and its subsidiaries) are as follows: Name State or sovereign power under laws of which organized Percentage of voting securities owned directly or indirectly by Company United States EDC, Inc. Ohio 100.0% TimkenSteel Material Service

February 15, 2019 SC 13G/A

TMST / TimkenSteel Corporation / LUMINUS MANAGEMENT LLC - SC 13G/A Passive Investment

UNITED STATES 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 (Amendment No. 1 )* TIMKENSTEEL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2018 (Date of E

February 15, 2019 EX-99.1

JOINT FILING AGREEMENT

Exhibit 1 JOINT FILING AGREEMENT This Joint Filing Agreement, dated as of February 14, 2019, is by and among Luminus Management, LLC, Luminus Energy Partners Master Fund, Ltd.

February 14, 2019 EX-99.1

JOINT FILING AGREEMENT

Exhibit 1 JOINT FILING AGREEMENT This Joint Filing Agreement, dated as of February 14, 2019, is by and among Luminus Management, LLC, Luminus Energy Partners Master Fund, Ltd.

February 14, 2019 SC 13G

TMST / TimkenSteel Corporation / LUMINUS MANAGEMENT LLC - SC 13G Passive Investment

UNITED STATES 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 (Amendment No. )* TIMKENSTEEL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2018 (Date of Eve

February 12, 2019 SC 13G/A

TMST / TimkenSteel Corporation / VANGUARD GROUP INC Passive Investment

timkensteelcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: TimkenSteel Corp Title of Class of Securities: Common Stock CUSIP Number: 887399103 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to

February 8, 2019 SC 13G/A

TMST / TimkenSteel Corporation / 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)* TIMKENSTEEL CORP (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

January 30, 2019 SC 13G/A

TMST / TimkenSteel Corporation / Timken Foundation of Canton - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) Calendar Year 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

January 30, 2019 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree and consent to the joint filing on behalf of each of them of a Statement on Schedule 13G filed on January 30, 2019 (including additional amendments thereto) with respect to the common shares, without par value, of TimkenSteel Corporation.

January 29, 2019 SC 13G/A

TMST / TimkenSteel Corporation / Linden Capital L.P. - 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 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) (Amendment No. 2)* TimkenSteel Corporation (Name of Issuer) Common Shares (Title of Class of Securities) 887399103 (CUSIP Number) December 31, 2018 (Date of Event which Req

October 25, 2018 EX-99.1

TimkenSteel Announces Third-Quarter 2018 Results

NEWS RELEASE TimkenSteel Announces Third-Quarter 2018 Results • Delivers net income in-line with guidance; exceeds Adjusted EBITDA(1) expectations • Third-quarter net sales increased 21 percent year over year with improved product mix •Positioned to deliver continued earnings growth in 2019 CANTON, Ohio: October 25, 2018 - TimkenSteel (NYSE: TMST, timkensteel.

October 25, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 25, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File

October 25, 2018 10-Q

TMST / TimkenSteel Corporation 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 OR o 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: 1-36313 TIMKENSTEEL CORPOR

October 25, 2018 EX-12.1

Computation of Ratio of Earnings to Fixed Charges.

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratio amounts) Nine Months Ended September 30, Year Ended December 31, 2018 2017 2016 2015 2014 Income (loss) before income taxes $9.1 $(42.3) $(142.0) $(71.7) $68.7 Plus: Fixed charges 13.3 16.1 13.4 5.5 8.9 Amortization of capitalized interest 1.3 1.8 1.9 1.7 0.7 Less: Interest capitalized 0.1 0.6 0.7 1.0

October 22, 2018 SC 13G

TMST / TimkenSteel Corporation / LUMINUS MANAGEMENT LLC - SC 13G Passive Investment

UNITED STATES 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 (Amendment No. )* TIMKENSTEEL CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 887399103 (CUSIP Number) October 12, 2018 (Date of Even

September 21, 2018 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): September 20, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission Fi

August 9, 2018 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 9, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

July 26, 2018 EX-99.1

TimkenSteel Announces Second-Quarter 2018 Results; Reports Increased Earnings

NEWS RELEASE TimkenSteel Announces Second-Quarter 2018 Results; Reports Increased Earnings CANTON, Ohio: July 26, 2018 -TimkenSteel (NYSE: TMST, timkensteel.

July 26, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 26, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File Nu

July 26, 2018 EX-12.1

Computation of Ratio of Earnings to Fixed Charges.

Exhibit 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Dollars in millions, except ratio amounts) Six Months Ended June 30, Year Ended December 31, 2018 2017 2016 2015 2014 (Loss) income before income taxes $6.8 $(42.3) $(142.0) $(71.7) $68.7 Plus: Fixed charges 8.9 16.1 13.4 5.5 8.9 Amortization of capitalized interest 0.8 1.8 1.9 1.7 0.7 Less: Interest capitalized 0.1 0.6 0.7 1.0 6.9 Ea

July 26, 2018 10-Q

TMST / TimkenSteel Corporation 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 OR o 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: 1-36313 TIMKENSTEEL CORPORATION

June 22, 2018 11-K

TMST / TimkenSteel Corporation 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 22, 2018 11-K

TMST / TimkenSteel Corporation 11-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission file number: 1-36313 TIMKENSTEEL CORPORATION

June 22, 2018 11-K

TMST / TimkenSteel Corporation 11-K

11-K 1 tmstcertainbargaining11-k2.htm 11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Commission fi

May 14, 2018 SC 13D/A

TMST / TimkenSteel Corporation / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) TimkenSteel Corporation (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 887399103 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Per

May 3, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 27, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commissi

April 26, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 26, 2018 TIMKENSTEEL CORPORATION (Exact name of registrant as specified in its charter) Ohio 1-36313 46-4024951 (State or Other Jurisdiction of Incorporation) (Commission File N

April 26, 2018 EX-99.1

TimkenSteel Announces First-Quarter 2018 Results; Expects Continued Improvement in Second Quarter

NEWS RELEASE TimkenSteel Announces First-Quarter 2018 Results; Expects Continued Improvement in Second Quarter CANTON, Ohio: April 26, 2018 -TimkenSteel (NYSE: TMST, timkensteel.

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