PETER J. GUNDERMANN - 19 Feb 2026 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
19 Feb 2026
Net transactions value
$0
Form type
4
Filing time
23 Feb 2026, 16:07:58 UTC
Previous filing
08 Dec 2025
Next filing
05 Mar 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 23 Feb 2026 0001182854

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ATRO $.01 PV Com Stk 83,907 19 Feb 2026 Direct
holding ATRO $.01 PV CL B STK 747,911 19 Feb 2026 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 Restricted Stock Unit Award $0 +12,150 $0.000000 12,150 19 Feb 2026 $.01 PV Com Stk 12,150 Direct F1, F5
holding ATRO Option 14,460 19 Feb 2026 $.01 PV Com Stk 14,460 $31.76 Direct
holding ATRO Option 2,169 19 Feb 2026 $.01 PV CL B STK 2,169 $31.76 Direct
holding ATRO Option 26,300 19 Feb 2026 $.01 PV Com Stk 26,300 $35.61 Direct
holding ATRO Option 3,945 19 Feb 2026 $.01 PV CL B STK 3,945 $35.61 Direct
holding ATRO Option 34,790 19 Feb 2026 $.01 PV Com Stk 34,790 $31.57 Direct
holding ATRO Option 61,200 19 Feb 2026 $.01 PV Com Stk 61,200 $30.04 Direct
holding ATRO Option 98,900 19 Feb 2026 $.01 PV Com Stk 98,900 $14.45 Direct
holding ATRO Option 115,800 19 Feb 2026 $.01 PV Com Stk 115,800 $11.13 Direct
holding ATRO Option 125,000 19 Feb 2026 $.01 PV Com Stk 125,000 $9.74 Direct
holding ATRO Option 83,900 19 Feb 2026 $.01 PV Com Stk 83,900 $15.15 Direct
holding ATRO Restricted Stock Unit 9,206 19 Feb 2026 $.01 PV Com Stk 9,206 Direct F1, F2
holding ATRO Restricted Stock Unit 26,450 19 Feb 2026 $.01 PV Com Stk 26,450 Direct F1, F3
holding ATRO Option 75,800 19 Feb 2026 $.01 PV Com Stk 75,800 $16.55 Direct
holding ATRO Restricted Stock Unit 25,250 19 Feb 2026 $.01 PV Com Stk 25,250 Direct F1, F4
holding ATRO Option 29,750 19 Feb 2026 $.01 PV Com Stk 29,750 $51.72 Direct
* 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.
F5 Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2026- December 31, 2028. The "target" number of restricted stock units is reported. Between 50% and 150% of the target number of units may vest on February 19, 2029, with the vesting percentage determined based on actual performance.