E. David Myers - 08 Dec 2025 Form 4 Insider Report for Spirit AeroSystems Holdings, Inc. (SPR)

Role: VP, General Counsel & Corp Sec
Signature: /s/ David Myers, Attorney-in-Fact
Issuer symbol: SPR
Transactions as of: 08 Dec 2025
Transactions value $: $0
Form type: 4
Filing time: 08 Dec 2025, 09:05:33 UTC
Previous filing: 07 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Myers David E.	VP, General Counsel & Corp Sec	3801 S OLIVER ST, MC K11-60, WICHITA	/s/ David Myers, Attorney-in-Fact	08 Dec 2025	0002046549

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SPR	Class A Common Stock	Disposed to Issuer		-4.31K	-100%		0	08 Dec 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SPR	Restricted Stock Units	Disposed to Issuer		-12.5K	-100%		0	08 Dec 2025	Class A Common Stock	12.5K		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

E. David Myers is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	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).
F2	Restricted stock units (RSUs), once vested and payable, would be settled in Shares on a one-for-one basis.
F3	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.