PETER J. GUNDERMANN - 04 Dec 2025 Form 4 Insider Report for ASTRONICS CORP (ATRO)

Role: PRESIDENT/CEO, Director
Signature: /S/JULIE DAVIS, AS POWER OF ATTORNEY FOR PETER J. GUNDERMANN
Issuer symbol: ATRO
Transactions as of: 04 Dec 2025
Net transactions value: +$1,538,670
Form type: 4
Filing time: 08 Dec 2025, 16:43:45 UTC
Previous filing: 24 Nov 2025
Next filing: 23 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
GUNDERMANN PETER J	PRESIDENT/CEO, Director	130 COMMERCE WAY, EAST AURORA	/S/JULIE DAVIS, AS POWER OF ATTORNEY FOR PETER J. GUNDERMANN	08 Dec 2025	0001182854

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	ATRO	$.01 PV Com Stk						83,907	04 Dec 2025	Direct
holding	ATRO	$.01 PV CL B STK						747,911	04 Dec 2025	Direct

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	ATRO	Option	Award	$1,538,670	+29,750		$51.72	29,750	04 Dec 2025	$.01 PV Com Stk	29,750	$51.72	Direct
holding	ATRO	Option						14,460	04 Dec 2025	$.01 PV Com Stk	14,460	$31.76	Direct
holding	ATRO	Option						2,169	04 Dec 2025	$.01 PV CL B STK	2,169	$31.76	Direct
holding	ATRO	Option						26,300	04 Dec 2025	$.01 PV Com Stk	26,300	$35.61	Direct
holding	ATRO	Option						3,945	04 Dec 2025	$.01 PV CL B STK	3,945	$35.61	Direct
holding	ATRO	Option						34,790	04 Dec 2025	$.01 PV Com Stk	34,790	$31.57	Direct
holding	ATRO	Option						61,200	04 Dec 2025	$.01 PV Com Stk	61,200	$30.04	Direct
holding	ATRO	Option						98,900	04 Dec 2025	$.01 PV Com Stk	98,900	$14.45	Direct
holding	ATRO	Option						115,800	04 Dec 2025	$.01 PV Com Stk	115,800	$11.13	Direct
holding	ATRO	Option						125,000	04 Dec 2025	$.01 PV Com Stk	125,000	$9.74	Direct
holding	ATRO	Option						83,900	04 Dec 2025	$.01 PV Com Stk	83,900	$15.15	Direct
holding	ATRO	Restricted Stock Unit						9,206	04 Dec 2025	$.01 PV Com Stk	9,206		Direct	F1, F2
holding	ATRO	Restricted Stock Unit						26,450	04 Dec 2025	$.01 PV Com Stk	26,450		Direct	F1, F3
holding	ATRO	Option						75,800	04 Dec 2025	$.01 PV Com Stk	75,800	$16.55	Direct
holding	ATRO	Restricted Stock Unit						25,250	04 Dec 2025	$.01 PV Com Stk	25,250		Direct	F1, F4

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents the right to receive, at settlement, one share of common stock.
F2	Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2023- December 31, 2025. The "target" number of restricted stock units is reported. Between 75% and 115% of the target number of units may vest on February 23, 2026, with the vesting percentage determined based on actual performance.
F3	Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2024- December 31, 2026. The "target" number of restricted stock units is reported. Between 50% and 150% of the target number of units may vest on February 23, 2027, with the vesting percentage determined based on actual performance.
F4	Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2025- December 31, 2027. The "target" number of restricted stock units is reported. Between 50% and 150% of the target number of units may vest on February 27, 2028, with the vesting percentage determined based on actual performance.