FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person *
Chilton Kevin P.
2. Issuer Name and Ticker or Trading Symbol
AEROJET ROCKETDYNE HOLDINGS, INC. [AJRD]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)

222 N. PACIFIC COAST HIGHWAY, SUITE 500
3. Date of Earliest Transaction (Month/Day/Year)
08/16/2021
(Street)

EL SEGUNDO, CA 90245
(City)
(State)
(Zip)
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing
(Check applicable line)

__X__ Form Filed by One Reporting Person
_____ Form Filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)

2. Transaction Date (Month/Day/Year)

2A. Deemed Execution Date, if any (Month/Day/Year)

3. Transaction Code (Instr. 8)

4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)

5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)

6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)

7. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

Amount

(A) or (D)

Price

Common Stock

08/16/2021 A 428 (1) (2) A $42.4718,870I

By Rabbi Trust

Common Stock

08/16/2021 A 214 (2) (3) A $42.4719,084I

By Rabbi Trust

Common Stock

        0 D 


Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares


Explanation of Responses:

Effective March 24, 2010, the Board of Directors approved a Director Compensation Program which allows Directors to elect to receive Aerojet Rocketdyne Holdings, Inc. common stock in lieu of their cash compensation. The number of shares of common stock shown reflects the common stock this Reporting Person is entitled to receive in lieu of his annual cash retainer fee paid quarterly.

Shares of common stock held by a "rabbi trust" receipt of which has been deferred by the Reporting Person pursuant to the Aerojet Rocketdyne Holdings, Inc. Deferred Compensation Plan for Directors.

Pursuant to the Director Compensation Program, if a Director elects to receive common stock in lieu of at least 50% of his cash compensation, the Company will grant restricted shares equal in value to 50% of the amount of cash compensation he elects to receive in common stock. Such restricted shares will vest on the earlier of (i) the date of the Director's retirement from the Board, and (ii) one year after the grant date. The number of shares of common stock shown reflects the additional grant of restricted shares.



Signatures

/s/ Rebecca A. Bauer, attorney-in-fact

08/18/2021
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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