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, 2025

CARPENTER TECHNOLOGY CORPORATION

(Exact name of registrant as specified in its charter)

(610) 208-2000

Registrant’s telephone number, including area code

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered or required to be registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b.2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 - Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On February 20, 2025, the Board of Directors (the “Board”) of Carpenter Technology Corporation (the “Company”) appointed Julie A. Beck as a member of the Board effective immediately. Ms. Beck will serve as a Class II director, with a term ending at the Company’s 2027 annual meeting of stockholders or until her successor is duly elected and qualified. She will serve on the Corporate Governance, Human Capital Management, and Strategy Committees.

The Board determined that Ms. Beck qualifies as an independent director under the director independence standards set forth in the rules and regulations of the Securities and Exchange Commission and the applicable listing standards of the New York Stock Exchange.

Ms. Beck is not party to any arrangements or understandings with any other person pursuant to which she was appointed as a director. Ms. Beck does not have any family relationship with the Company’s executive officers or directors, nor has she engaged in any related party transaction with the Company that would be required to be disclosed pursuant to Item 404 of Regulation S-K.

Ms. Beck is expected to receive compensation for her service on the Board in accordance with the Company’s director compensation program for non-employee directors, which is described in the Company’s Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on September 13, 2024.

On February 21, 2025, the Company issued a press release announcing Ms. Beck’s appointment. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

Item 9.01 – Financial Statements and Exhibits

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: February 24, 2025