Form 8-K

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:

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).

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 2.02. Results of Operations and Financial Condition.

On May 4, 2023, Aerojet Rocketdyne Holdings, Inc. (the “Company”) issued a press release announcing its financial results for the three months ended March 31, 2023. A copy of the press release is attached to this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The foregoing information (including Exhibit 99.1) is being furnished under “Item 2.02. Results of Operations and Financial Condition” and “Item 7.01. Regulation FD Disclosure.” Such information (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

The filing of this Report and the furnishing of this information pursuant to Items 2.02 and 7.01 (including Exhibit 99.1) do not mean that such information is material or that disclosure of such information is required.

Item 7.01. Regulation FD Disclosure.

See “Item 2.02. Results of Operations and Financial Condition” above.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1 Aerojet Rocketdyne Holdings, Inc. press release dated May 4, 2023

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

Delaware	1-01520	34-0244000
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.10 par value	AJRD	New York Stock Exchange

	Aerojet Rocketdyne Holdings, Inc.


Date: May 4, 2023	By:	/s/ Daniel L. Boehle
	Name:	Daniel L. Boehle
	Title:	Vice President and Chief Financial Officer

☐	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))