Peter J. Gundermann - 15 Jun 2026 Form 4 Insider Report for ASTRONICS CORP (ATRO)

Reporting relationship: PRESIDENT/CEO, Director
Issuer ticker: ATRO
Reported as of: 15 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Jun 2026, 16:13:58 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /S/JULIE DAVIS, AS POWER OF ATTORNEY FOR PETER J. GUNDERMANN

Key filing fact

Peter J. Gundermann filed Form 4 for ASTRONICS CORP (ATRO) on 17 Jun 2026.

Key facts

This page summarizes Peter J. Gundermann's Form 4 filing for ASTRONICS CORP (ATRO).
14 reported transactions and 26 derivative rows are listed below.
Accepted by SEC: 17 Jun 2026, 16:13.

Change

Previous filing in this sequence was filed on 05 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001182854 Primary reporting owner

GUNDERMANN PETER J

Relationship: PRESIDENT/CEO, Director
Address: 130 COMMERCE WAY, EAST AURORA
Signature: /S/JULIE DAVIS, AS POWER OF ATTORNEY FOR PETER J. GUNDERMANN
Signature date: 17 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATRO transaction

$.01 PV CL B STK

Other

Transaction value
Shares: +168,375
Change %: +23%
Price: $0.000000^*
Shares after: 916,286
Date: 15 Jun 2026
Ownership: Direct
Footnotes: F1

ATRO holding

$.01 PV Com Stk

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 93,968
Date: 15 Jun 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +3,325
Change %: +153%
Price: $0.000000^*
Shares after: 5,494
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 3,325
Exercise price: $26.47
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +6,049
Change %: +153%
Price: $0.000000^*
Shares after: 9,994
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 6,049
Exercise price: $29.68
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +6,958
Change %
Price: $0.000000^*
Shares after: 6,958
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 6,958
Exercise price: $26.31
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +12,240
Change %
Price: $0.000000^*
Shares after: 12,240
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 12,240
Exercise price: $25.03
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +19,780
Change %
Price: $0.000000^*
Shares after: 19,780
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 19,780
Exercise price: $12.04
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +23,160
Change %
Price: $0.000000^*
Shares after: 23,160
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 23,160
Exercise price: $9.28
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +25,000
Change %
Price: $0.000000^*
Shares after: 25,000
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 25,000
Exercise price: $8.12
Footnotes: F1

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +16,780
Change %
Price: $0.000000^*
Shares after: 16,780
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 16,780
Exercise price: $12.63
Footnotes: F1

ATRO transaction Derivative

Restricted Stock Unit

Other

Transaction value
Shares: +5,290
Change %
Price: $0.000000^*
Shares after: 5,290
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 5,290
Exercise price
Footnotes: F1, F3, F4

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +15,160
Change %
Price: $0.000000^*
Shares after: 15,160
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 15,160
Exercise price: $13.79
Footnotes: F1

ATRO transaction Derivative

Restricted Stock Unit

Other

Transaction value
Shares: +5,050
Change %
Price: $0.000000^*
Shares after: 5,050
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 5,050
Exercise price
Footnotes: F1, F4, F5

ATRO transaction Derivative

Option

Other

Transaction value
Shares: +5,950
Change %
Price: $0.000000^*
Shares after: 5,950
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 5,950
Exercise price: $43.10
Footnotes: F1

ATRO transaction Derivative

Restricted Stock Unit

Other

Transaction value
Shares: +2,430
Change %
Price: $0.000000^*
Shares after: 2,430
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV CL B STK
Underlying amount: 2,430
Exercise price
Footnotes: F1, F4, F6

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 14,460
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 14,460
Exercise price: $26.47

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 26,300
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 26,300
Exercise price: $29.68

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 34,790
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 34,790
Exercise price: $26.31

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 61,200
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 61,200
Exercise price: $25.03

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 98,900
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 98,900
Exercise price: $12.04

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 115,800
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 115,800
Exercise price: $9.28

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 125,000
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 125,000
Exercise price: $8.12

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 83,900
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 83,900
Exercise price: $12.63

ATRO holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 26,450
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 26,450
Exercise price
Footnotes: F2, F3

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 75,800
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 75,800
Exercise price: $13.79

ATRO holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 25,250
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 25,250
Exercise price
Footnotes: F2, F5

ATRO holding Derivative

Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 29,750
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 29,750
Exercise price: $43.10

ATRO holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 12,150
Date: 15 Jun 2026
Ownership: Direct
Underlying class: $.01 PV Com Stk
Underlying amount: 12,150
Exercise price
Footnotes: F2, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Shares issued pursuant to a one-for-five distribution of Class B stock to holders of both Common and Class B stock on the record date of June 15, 2026.

Footnote F2

Each restricted stock unit represents the right to receive, at settlement, one share of common stock.

Footnote 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.

Footnote F4

Each restricted stock unit represents the right to receive, at settlement, one share of class B stock.

Footnote F5

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.

Footnote F6

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.