Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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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(Print or Type Responses)

1. Name and Address of Reporting Person * AA&D Holdings, LP 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) (Last) (First) (Middle) C/O GREENBRIAR EQUITY GROUP, L.P., 1 GREENWICH PLAZA 3. Date of Earliest Transaction (Month/Day/Year) 07/15/2026 (Street) GREENWICH, CT 06830 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 (City) (State) (Zip) 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)

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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 Underlying Securities (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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
AA&D Holdings, LP C/O GREENBRIAR EQUITY GROUP, L.P. 1 GREENWICH PLAZA GREENWICH, CT 06830		X

Signatures

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

Explanation of Responses:

*	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).
(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.

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