Material Agreement · New Debt / Obligation

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): June 28, 2023 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 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 NASDAQ Stock Market Securities registered pursuant to Section 12(g) of the Act: None 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)) 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 1.01 Entry into a Material Definitive Agreement. The disclosure set forth in Item 2.03 below is incorporated in this Item 1.01 by reference. Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. Astronics Corporation (the “Company”) amended its existing asset-based credit facility on June 28, 2023 by entering into the First Amendment (the “Amendment”) to Sixth Amended and Restated Credit Agreement (the “Agreement”), with HSBC Bank USA, National Association, as Agent and Co-Collateral Agent, Wells Fargo Bank, N.A., as Co-Collateral Agent, and the lenders signatory thereto. As permitted under the Agreement, the Amendment increased the maximum aggregate amount that the Company can borrow under the revolving credit line by $5 million, from $115 million to $120 million, with borrowings subject to a borrowing base determined primarily by inventory and accounts receivable. Under the terms of the Amendment, the Company will pay fees in an amount equal to 0.15% of the $5 million increase. The above description does not purport to be complete and is qualified in its entirety by reference to the Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated herein by reference, and the Agreement which was filed as Exhibit 10.1 to the Current Report on Form 8-K filed on January 19, 2023, and incorporated herein by reference. Item 9.01 Financial Statements and Exhibits. Exhibit Description 10.1 First Amendment to Sixth Amended and Restated Credit Agreement dated as of June 28, 2023, by and among Astronics Corporation, the other borrowers and guarantors signatory thereto, HSBC Bank USA, National Association, as Agent and Co-Collateral Agent, Wells Fargo Bank, N.A., as Co-Collateral Agent, and the lenders signatory thereto 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Astronics Corporation Dated: June 28, 2023 By: /s/ David C. Burney Name: David C. Burney Executive Vice President and Chief Financial Officer