UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

~~___________________________________~~Form 8-K

FORM 8-K

___________________________________

CURRENT REPORT

~~Pursuant~~PURSUANT toTO ~~Section~~SECTION 13 orOR 15(d) OF

ofTHE ~~the~~SECURITIES ~~Securities~~EXCHANGE ~~Exchange~~ACT ~~Act~~OF of 1934

Date of Report (Date of earliest event reported): ~~October 23~~November 10, 2025

___________________________________

CARPENTER TECHNOLOGY CORPORATION

(Exact name of registrant as specified in its charter)

___________________________________

Delaware		1-5828		23-0458500
(State of or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer I.D. No.)

Delaware(State or other jurisdiction of incorporation or organization)	1-5828(Commission File Number)		23-0458500(I.R.S. Employer Identification Number)
1735 Market Street
1735 Market StreetPhiladelphia, PA			19103
Philadelphia, Pennsylvania		19103
(Address of principal executive offices)		(Zip Code)	~~(Zip Code)~~
(610) 208-2000
(Registrant's telephone number, including area code)

~~___________________________________~~(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:

☐¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $5 Par Value	CRS	New York Stock Exchange

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

Title of each class		Trading Symbol		Name of each exchange on which registered
Common Stock, $5 Par Value		CRS		New York Stock Exchange

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 27.0201 -Regulation ~~Results~~FD ~~of Operations and Financial Condition~~Disclosure.

On ~~October 23~~November 10, 2025, Carpenter Technology ~~Corporation~~Company (the ~~held~~“Company”) ~~its~~issued ~~first~~a ~~quarter~~press ~~fiscal~~release ~~year~~announcing ~~2026~~the ~~earnings~~pricing ~~call,~~of ~~broadcast~~an ~~live~~offering byof ~~webcast~~$700.0 Amillion ~~copy~~aggregate principal amount of ~~the~~5.625% ~~slides~~senior ~~presented~~notes ~~during~~due 2034 (the ~~call~~“Notes”) ~~are~~in ~~furnished~~a asprivate ~~Exhibit 99~~offering.1 toA ~~this~~copy ~~Form~~of ~~8-K~~the ~~and~~press ~~shall~~release ~~not~~is beattached ~~deemed~~hereto toas Exhibit be99.1 ~~“filed”~~to ~~for~~this ~~any~~Current ~~purpose~~Report.

~~Item~~The 9Notes have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or the securities laws of any other jurisdiction and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements of the Securities Act or the securities laws of any other jurisdiction.01 -Accordingly, ~~Financial~~the ~~Statements~~Notes are expected to be eligible for resale in the United States only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A and ~~Exhibits~~outside the United States to non-U.S. persons in compliance with Regulation S. This announcement shall not constitute an offer to sell or a solicitation of an offer to buy any of these securities nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

~~(d):~~The ~~Exhibits:~~information in this Current Report, including the Exhibit attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. The information contained herein and in the accompanying Exhibit shall not be incorporated by reference into any registration statement or other document filed with the Securities and Exchange Commission by the Company, whether before or after the date hereof, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Exhibit No.						Description
99.1						Slides presented during Carpenter Technology Corporation first quarter fiscal year 2026 earnings call
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

Item 9.01 - Financial Statements and Exhibits

~~SIGNATURE~~(d) Exhibits

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.

Exhibit No.		Descriptions
99.1*		Press Release dated November 10, 2025.
104.1		Cover Page Interactive Data File (embedded within the Inline XBRL document).

	CARPENTER TECHNOLOGY CORPORATION
	By:	/s/ Timothy Lain
	Name:	Timothy Lain
	Title:	Senior Vice President and Chief Financial Officer
Date: October 23, 2025

*furnished herewith.

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.

	CARPENTER TECHNOLOGY CORPORATION

	By	/s/ Timothy Lain
		Timothy Lain
		Senior Vice President and Chief Financial Officer

Date: November 10, 2025

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