Form 8-K

8-K — ASTRONICS CORP

Accession: 0000008063-26-000029

Filed: 2026-05-28

Period: 2026-05-28

CIK: 0000008063

SIC: 3728 (AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC)

Item: Submission of Matters to a Vote of Security Holders

Documents

8-K — atro-20260528.htm (Primary)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: atro-20260528.htm · Sequence: 1

atro-20260528

FALSE130 Commerce WayEast AuroraNew York000000806300000080632026-05-282026-05-28

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 28, 2026

ASTRONICS CORPORATION

(Exact name of registrant as specified in its charter)

New York

0-7087

16-0959303

(State of Other Jurisdiction of Incorporation) (Commission File Number) (I.R.S. Employer Identification No.)

130 Commerce Way

East Aurora, New York

14052

(Address of principal executive offices)

(Zip Code)

Registrant's telephone number, including area code: (716) 805-1599

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol Name of each exchange on which registered

Common Stock, $.01 par value per share ATRO The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07 Submission of Matters to a Vote of Security Holders.

On May 28, 2026, Astronics Corporation (the “Company”) held its 2026 Annual Meeting of Shareholders (“Annual Meeting”) for which the Board of Directors solicited proxies. At the Annual Meeting, the shareholders voted on the following:

1.The election of the Board of Directors;

2.The ratification of the appointment of Ernst & Young LLP as the independent registered public accounting firm for the Company for the current fiscal year;

3.A non-binding shareholder advisory vote on the compensation of the Company’s named executive officers;

4.The adoption of the Astronics Corporation 2026 Long Term Incentive Plan (the “2026 LTIP”); and

5.The adoption of the Astronics Corporation 2026 Employee Stock Purchase Plan (the “ESPP”).

In accordance with the Company’s Restated Certificate of Incorporation, as amended, on all agenda items the holders of Astronics common shares and Class B shares voted together as one class, with each common share entitled to one vote and each Class B share entitled to ten votes.

The final voting results on each of the matters submitted to a vote of shareholders at the Annual Meeting were as follows:

1.Election of the Board of Directors. The nominees to the Board of Directors were elected based on the following votes:

For Withheld Broker Non-Votes

Robert T. Brady 43,173,049 3,211,885 5,512,038

Jeffry D. Frisby 46,061,671 323,263 5,512,038

Peter J. Gundermann 45,870,198 514,736 5,512,038

Warren C. Johnson 38,776,245 7,608,689 5,512,038

Robert S. Keane 36,454,346 9,930,588 5,512,038

Neil Y. Kim 46,089,334 295,600 5,512,038

Mark Moran 35,331,124 11,053,810 5,512,038

Linda O’Brien 38,752,044 7,632,890 5,512,038

Fay West 45,224,634 1,160,300 5,512,038

2.Ratification of Ernst & Young LLP as independent registered public accounting firm for fiscal year 2026. A total of 51,289,688 votes were cast for the proposal, 523,194 votes were cast against it and 84,090 votes abstained. There were no broker non-votes on the proposal. The affirmative votes constituted more than a majority of the votes represented at the meeting, the number needed to approve the proposal.

3.The non-binding shareholder advisory vote on the compensation of the Company's named executive officers. A total of 44,813,274 votes were cast for the proposal, 1,366,153 votes were cast against it and 205,507 votes abstained. There were 5,512,038 broker non-votes on the proposal. The shareholders approved, on a non-binding, advisory basis, the compensation of the Company's named executive officers as disclosed in the Proxy.

4.The adoption of the Astronics Corporation 2026 Long Term Incentive Plan. A total of 42,885,555 votes were cast for the proposal, 3,344,537 votes were cast against it and 154,842 votes abstained. There were 5,512,038 broker non-votes on the proposal. The affirmative vote constituted more than a majority of the votes represented at the meeting, the number needed to approval the proposal.

5.The adoption of the Astronics Corporation 2026 Employee Stock Purchase Plan. A total of 46,218,739 votes were cast for the proposal, 146,323 votes were cast against it and 19,872 votes abstained. There were 5,512,038 broker non-votes on the proposal. The affirmative vote constituted more than a majority of the votes represented at the meeting, the number needed to approval the proposal.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Astronics Corporation

Date: May 28, 2026 By: /s/ Nancy L. Hedges

Nancy L. Hedges

Vice President and Chief Financial Officer

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 6

v3.26.1

Cover

May 28, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

May 28, 2026

Entity Registrant Name

ASTRONICS CORPORATION

Entity Incorporation, State or Country Code

Entity File Number

0-7087

Entity Tax Identification Number

16-0959303

Entity Address, Address Line One

130 Commerce Way

Entity Address, City or Town

East Aurora

Entity Address, State or Province

Entity Address, Postal Zip Code

14052

City Area Code

716

Local Phone Number

805-1599

Title of 12(b) Security

Common Stock, $.01 par value per share

Trading Symbol

ATRO

Security Exchange Name

NASDAQ

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Amendment Flag

false

Entity Central Index Key

0000008063

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration