Form: 4

Statement of changes in beneficial ownership of securities

SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
  
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
AA&D Holdings, LP

(Last) (First) (Middle)
C/O GREENBRIAR EQUITY GROUP, L.P.
1 GREENWICH PLAZA

(Street)
GREENWICH CT 06830

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Applied Aerospace & Defense, Inc. [ AADX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
07/15/2026
4. If Amendment, Date of 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 07/15/2026 J 11,456,787(1) D $0(1) 126,786,731 D(2)
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: 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:
1. Represents the pro rata distribution of an aggregate of 11,456,787 shares of common stock by AA&D Holdings, LP to its limited partners, including certain directors and officers of the issuer. No consideration was paid in connection with the transaction reported herein. All shares subject to such distribution remain subject to the lock-up restrictions for the benefit of the underwriters implemented in connection with the initial public offering of the issuer.
2. AA&D Holdings, LP is a Delaware limited partnership managed by affiliates of Greenbriar Equity Group, L.P. GB Eagle GP, LLC ("GB Eagle GP") is the general partner of AA&D Holdings, LP. Greenbriar Equity Capital V, L.P. ("Greenbriar Equity Capital") is the sole member of GB Eagle GP. Greenbriar Equity Capital is controlled by its general partner, Greenbriar Holdings V, LLC, which is managed by a board of managers (the "Board of Managers"). Voting and dispositive power of the securities held directly by AA&D Holdings, LP is exercised by majority vote of the Board of Managers, which includes Noah Roy, who also serves as a member of the issuer's board of directors. Each of the foregoing persons disclaims beneficial ownership of the securities except to the extent of its pecuniary interest therein.
AA&D Holdings, LP, By: GB Eagle GP, LLC, its general partner, By: /s/ Noah Blitzer, Vice President 07/17/2026
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.