[Form 4] Spirit AeroSystems Holdings, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Spirit AeroSystems Holdings, Inc. (SPR) reported a Form 4 transaction for its SVP and Chief Procurement Officer following the closing of its merger with The Boeing Company. On December 8, 2025, all 28,864 shares of Spirit Class A common stock beneficially owned by the executive were disposed of, as each share was automatically canceled and converted into the right to receive Boeing common stock at a fixed exchange ratio of 0.1955 Boeing shares per Spirit share under the merger agreement.

The filing also shows that 24,182 restricted stock units (RSUs) tied to Spirit shares were disposed of and simultaneously converted into Boeing RSUs. Each Boeing RSU now represents Boeing common stock based on the same 0.1955 exchange ratio, rounded to the nearest whole share, and continues under the same vesting and other terms that applied immediately before the merger’s effective time, including any associated dividend equivalents.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Krishnaswamy Kailash

Role SVP, Chief Procurement Officer

Type	Security	Shares	Price	Value
Disposition	Restricted Stock Units	24,182	$0.00	--
Disposition	Class A Common Stock	28,864	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Class A Common Stock — 0 shares (Direct)

Footnotes (1)

1. On December 8, 2025, pursuant to the Agreement and Plan of Merger among the issuer, The Boeing Company (Boeing) and Sphere Acquisition Corp., dated June 30, 2024 (the Merger Agreement), each share of the Class A Common Stock (Share) of the issuer was automatically canceled and converted into the right to receive a number of shares of Boeing common stock equal to 0.1955 (the Exchange Ratio). Restricted stock units (RSUs), once vested and payable, would be settled in Shares on a one-for-one basis. On December 8, 2025, pursuant to the Merger Agreement, each outstanding RSU of the issuer held by the reporting person was automatically converted into an RSU of Boeing denominated in shares of Boeing common stock (a Boeing RSU). The number of shares of Boeing common stock subject to each such Boeing RSU is equal to the product (rounded to the nearest whole number) of (i) the total number of Shares subject to such issuer RSU immediately prior to the Effective Time (as defined in the Merger Agreement) multiplied by (ii) the Exchange Ratio. Any accrued but unpaid dividend equivalents with respect to any such issuer RSU was assumed and became an obligation with respect to the applicable Boeing RSU. Each such Boeing RSU continues to be governed by the same terms and conditions (including vesting terms) as were applicable to such issuer RSU immediately prior to the Effective Time.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

X

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^*

Krishnaswamy Kailash

(Last) (First) (Middle)

3801 S OLIVER

MC K11-60

(Street)

WICHITA KS 67210

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Spirit AeroSystems Holdings, Inc. [ SPR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Procurement Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/08/2025

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
Class A Common Stock	12/08/2025		D		28,864	D	(1)	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: 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
Restricted Stock Units	(2)	12/08/2025		D			24,182	(3)	(3)	Class A Common Stock	24,182	(3)	0	D

Explanation of Responses:

1. On December 8, 2025, pursuant to the Agreement and Plan of Merger among the issuer, The Boeing Company (Boeing) and Sphere Acquisition Corp., dated June 30, 2024 (the Merger Agreement), each share of the Class A Common Stock (Share) of the issuer was automatically canceled and converted into the right to receive a number of shares of Boeing common stock equal to 0.1955 (the Exchange Ratio).

2. Restricted stock units (RSUs), once vested and payable, would be settled in Shares on a one-for-one basis.

3. On December 8, 2025, pursuant to the Merger Agreement, each outstanding RSU of the issuer held by the reporting person was automatically converted into an RSU of Boeing denominated in shares of Boeing common stock (a Boeing RSU). The number of shares of Boeing common stock subject to each such Boeing RSU is equal to the product (rounded to the nearest whole number) of (i) the total number of Shares subject to such issuer RSU immediately prior to the Effective Time (as defined in the Merger Agreement) multiplied by (ii) the Exchange Ratio. Any accrued but unpaid dividend equivalents with respect to any such issuer RSU was assumed and became an obligation with respect to the applicable Boeing RSU. Each such Boeing RSU continues to be governed by the same terms and conditions (including vesting terms) as were applicable to such issuer RSU immediately prior to the Effective Time.

Remarks:

	/s/ David Myers, Attorney in Fact	12/08/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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