ATRO

SEC source: 0001628280-25-043726 · wk-form4_1759436572.xml · nonDerivative · entry 1

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,824.73

F1 · acquired: Acquired shares via exercise of subscription agreement under Employee Stock Purchase Plan.

SEC source: 0001628280-25-043723 · wk-form4_1759436533.xml · nonDerivative · entry 1

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,511.822

F1 · acquired: Acquired shares via exercise of subscription agreement under Employee Stock Purchase Plan.

SEC source: 0001628280-25-043722 · wk-form4_1759436489.xml · nonDerivative · entry 1

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,948.975

F1 · acquired: Acquired shares via exercise of subscription agreement under Employee Stock Purchase Plan.

SEC source: 0001628280-25-041924 · wk-form4_1757621525.xml · nonDerivative · entry 2

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,231.822

F2 · kind: Shares transferred to former spouse of Mr. Mulato in connection with a divorce settlement. The reporting person no longer has a reportable beneficial interest in 100 shares of common stock and 32 shares of Class B stock owned by the former spouse of the reporting person and previously included in the prior ownership reports of the reporting person.

SEC source: 0001628280-25-041924 · wk-form4_1757621525.xml · nonDerivative · entry 3

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,066

F1 · kind: Represents shares held in a 401(k) account of Mr. Mulato and disposed of pursuant to a qualified domestic relations order.

SEC source: 0001628280-25-041924 · wk-form4_1757621525.xml · nonDerivative · entry 1

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,286.822

F1 · kind: Represents shares held in a 401(k) account of Mr. Mulato and disposed of pursuant to a qualified domestic relations order.

SEC source: 0001628280-25-041280 · wk-form4_1756411349.xml · derivative · entry 6

FRISBY JEFFRY D · CIK 0001061274 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041280 · wk-form4_1756411349.xml · nonDerivative · entry 1

FRISBY JEFFRY D · CIK 0001061274 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,523

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041288 · wk-form4_1756414008.xml · derivative · entry 3

O'Brien Linda · CIK 0001967496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F3 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F3 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041288 · wk-form4_1756414008.xml · nonDerivative · entry 1

O'Brien Linda · CIK 0001967496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,839

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041276 · wk-form4_1756411321.xml · derivative · entry 9

BRADY ROBERT T · CIK 0001020325 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041276 · wk-form4_1756411321.xml · nonDerivative · entry 1

BRADY ROBERT T · CIK 0001020325 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,069

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041277 · wk-form4_1756411327.xml · derivative · entry 2

MORAN MARK J · CIK 0001264169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041277 · wk-form4_1756411327.xml · nonDerivative · entry 1

MORAN MARK J · CIK 0001264169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,523

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041278 · wk-form4_1756411335.xml · derivative · entry 4

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F4 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F4 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041278 · wk-form4_1756411335.xml · nonDerivative · entry 1

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,401

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041275 · wk-form4_1756411313.xml · derivative · entry 6

JOHNSON WARREN C · CIK 0001251981 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041275 · wk-form4_1756411313.xml · nonDerivative · entry 1

JOHNSON WARREN C · CIK 0001251981 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,223

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041273 · wk-form4_1756411299.xml · derivative · entry 2

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041273 · wk-form4_1756411299.xml · nonDerivative · entry 1

West Fay · CIK 0001524598 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,055

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041272 · wk-form4_1756411292.xml · derivative · entry 6

KIM NEIL Y. · CIK 0001463220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 6,055 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F2 · derivative.exercise_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

F2 · derivative.expiration_date: These restricted stock units were settled for shares of common stock on August 27, 2025.

SEC source: 0001628280-25-041272 · wk-form4_1756411292.xml · nonDerivative · entry 1

KIM NEIL Y. · CIK 0001463220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,523

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-041289 · wk-form4_1756414042.xml · nonDerivative · entry 1

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,544.73

SEC source: 0001628280-25-024684 · wk-form4_1747080924.xml · nonDerivative · entry 7

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Note

Disclosed balance after: 0

F1 · ownership.nature: Reporting Person is one of multiple potential beneficiaries to the direct owner of these shares, which is a trust (EAK & KRK Trust U/A/D 10-15-97 FBO Elizabeth A. Keane). The entire amount of the trust's interest is reported on this form, however the Reporting Person's proportionate interest is below 25%.

SEC source: 0001628280-25-024684 · wk-form4_1747080924.xml · nonDerivative · entry 6

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Note

Disclosed balance after: 0

F3 · ownership.nature: The direct owner is Boston & Saranac LLC, a Delaware limited liability company ("Boston & Saranac"). Boston & Saranac is 100% owned by a trust whose beneficiaries are the Reporting Person and his spouse

SEC source: 0001628280-25-024684 · wk-form4_1747080924.xml · nonDerivative · entry 5

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Note

Disclosed balance after: 200,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: Conversion of Class B Common Stock to Common Stock

F3 · ownership.nature: The direct owner is Boston & Saranac LLC, a Delaware limited liability company ("Boston & Saranac"). Boston & Saranac is 100% owned by a trust whose beneficiaries are the Reporting Person and his spouse

SEC source: 0001628280-25-024684 · wk-form4_1747080924.xml · nonDerivative · entry 4

Keane Robert S · CIK 0001337084 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Note

Disclosed balance after: 208,199

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: Conversion of Class B Common Stock to Common Stock

F3 · ownership.nature: The direct owner is Boston & Saranac LLC, a Delaware limited liability company ("Boston & Saranac"). Boston & Saranac is 100% owned by a trust whose beneficiaries are the Reporting Person and his spouse

SEC source: 0000008063-25-000021 · wk-form4_1742503653.xml · derivative · entry 11

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 5,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F6 · derivative.exercise_date: These restricted stock units vested 100% on February 24, 2025.

F6 · derivative.expiration_date: These restricted stock units vested 100% on February 24, 2025.

SEC source: 0000008063-25-000021 · wk-form4_1742503653.xml · nonDerivative · entry 2

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,708.975

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

SEC source: 0000008063-25-000021 · wk-form4_1742503653.xml · nonDerivative · entry 1

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,438.975

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000008063-25-000020 · wk-form4_1742503643.xml · derivative · entry 20

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 9,413 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F6 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F6 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0000008063-25-000020 · wk-form4_1742503643.xml · nonDerivative · entry 2

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,872.822

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

SEC source: 0000008063-25-000020 · wk-form4_1742503643.xml · nonDerivative · entry 1

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,579.822

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000008063-25-000019 · wk-form4_1742503631.xml · derivative · entry 18

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 8,850 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F5 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F5 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0000008063-25-000019 · wk-form4_1742503631.xml · nonDerivative · entry 2

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,756.731

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

SEC source: 0000008063-25-000019 · wk-form4_1742503631.xml · nonDerivative · entry 1

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,300.731

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000008063-25-000018 · wk-form4_1742503614.xml · derivative · entry 20

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 11,063 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F6 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F6 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0000008063-25-000018 · wk-form4_1742503614.xml · nonDerivative · entry 2

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,116.608

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

SEC source: 0000008063-25-000018 · wk-form4_1742503614.xml · nonDerivative · entry 1

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,046.608

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-016480 · wk-form4a_1743710750.xml · derivative · entry 20

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 11,063 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F8 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F8 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0001628280-25-016480 · wk-form4a_1743710750.xml · nonDerivative · entry 2

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,913.608

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

F2 · acquired: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the transaction as Acquired (A) instead of Disposed (D). The amendment shows the transaction as a Disposition (D).

F3 · balance_after: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the total amount of securities owned following the reported transaction. The amendment shows the correct securities owned after the transaction.

SEC source: 0001628280-25-016480 · wk-form4a_1743710750.xml · nonDerivative · entry 1

GUNDERMANN PETER J · CIK 0001182854 · Director · PRESIDENT/CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,046.608

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-016479 · wk-form4a_1743710738.xml · derivative · entry 11

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 5,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F8 · derivative.exercise_date: These restricted stock units vested 100% on February 24, 2025.

F8 · derivative.expiration_date: These restricted stock units vested 100% on February 24, 2025.

SEC source: 0001628280-25-016479 · wk-form4a_1743710738.xml · nonDerivative · entry 2

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,668.975

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

F2 · acquired: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the transaction as Acquired (A) instead of Disposed (D). The amendment shows the transaction as a Disposition (D).

F3 · balance_after: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the total amount of securities owned following the reported transaction. The amendment shows the correct securities owned after the transaction.

SEC source: 0001628280-25-016479 · wk-form4a_1743710738.xml · nonDerivative · entry 1

Hedges Nancy L · CIK 0001628179 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,438.975

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-016478 · wk-form4a_1743710724.xml · derivative · entry 18

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 8,850 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F7 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F7 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0001628280-25-016478 · wk-form4a_1743710724.xml · nonDerivative · entry 2

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,994.73

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

F2 · acquired: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the transaction as Acquired (A) instead of Disposed (D). The amendment shows the transaction as a Disposition (D).

F3 · balance_after: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the total amount of securities owned following the reported transaction. The amendment shows the correct securities owned after the transaction.

SEC source: 0001628280-25-016478 · wk-form4a_1743710724.xml · nonDerivative · entry 1

PEABODY MARK · CIK 0001492763 · Executive VP & Pres-Aerospace

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,300.731

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001628280-25-016476 · wk-form4a_1743710703.xml · derivative · entry 20

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: $.01 PV Com Stk · 9,413 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

F8 · derivative.exercise_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

F8 · derivative.expiration_date: Vesting of these restricted stock units depends on Astronics Corp.'s average annual adjusted EBITDA for the period January 1, 2022- December 31, 2024. The amount shown reflects 75% of the target number of restricted stock units which vested on February 24, 2025.

SEC source: 0001628280-25-016476 · wk-form4a_1743710703.xml · nonDerivative · entry 2

Mulato James · CIK 0001693402 · Pres Astronics Test Systems

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,286.822

F1 · kind: Shares withheld by Astronics Corp. to satisfy applicable withholding tax upon vesting of restricted stock units.

F2 · acquired: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the transaction as Acquired (A) instead of Disposed (D). The amendment shows the transaction as a Disposition (D).

F3 · balance_after: The original Form 4, filed on March 20, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the total amount of securities owned following the reported transaction. The amendment shows the correct securities owned after the transaction.