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Anterix Inc.

For the period ended Sep 30, 2026. Filed Nov 10, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 10, 2026

ATEX$75.47-6.6%Stored close · as of Nov 10, 2026

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Item 6. Exhibits

ExhibitNo.Description of Exhibit
3.1(1)Amended and Restated Certificate of Incorporation of the Company.
3.2(2)Certificate of Amendment No. 1 of Amended and Restated Certificate of Incorporation of the Company.
3.3(3)Certificate of Amendment No. 2 of Amended and Restated Certificate of Incorporation of the Company.
3.4(4)Amended and Restated Bylaws of the Company.
3.5(5)Amendment No. 1 to the Amended and Restated Bylaws of the Company.
10.1(6)Amendment No. 2 to the Anterix Inc. 2023 Stock Plan.
31.1#Certification of Principal Executive Officer pursuant to Rules 13a-14 and 15d-14 promulgated pursuant to the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2#Certification of Principal Financial Officer pursuant to Rules 13a-14 and 15d-14 promulgated pursuant to the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1#*Certification of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2#*Certification of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101The following financial information from Anterix Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2026 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Changes in Stockholders Equity, (iv) the Consolidated Statements of Cash Flows, and (v) Notes to the Consolidated Financial Statements.
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

(1)Incorporated by reference to Exhibit 3.1 of the Registrant’s Registration Statement on Form S-1 (File No. 333-201156), filed with the SEC on December 19, 2014.

(2)Incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File No. 001-36827), filed with the SEC on November 5, 2015.

(3)Incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File No. 001-36827), filed with the SEC on August 6, 2019.

(4)Incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File No. 001-36827), filed with the SEC on June 27, 2017.

(5)Incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File No. 001-36827), filed with the SEC on May 8, 2020.

(6)Incorporated by reference to Appendix A to the Registrant’s Definitive Proxy Statement (File No. 001-36827), filed with the SEC on June 25, 2026.

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