Heather Martin, Chief Marketing Officer and Chief of Staff at Anterix Inc., filed a statement of changes in beneficial ownership with the SEC on September 11, 2026, covering two transactions in the company's common stock that took place on September 9 and September 10, 2026.

Key Highlights

  • Shares withheld for taxes: 3,465 shares of common stock were withheld by the issuer on September 9, 2026, at $85.44 per share to satisfy tax withholding obligations tied to partial vesting and settlement of restricted stock units.
  • Open-market sale: 8,064 shares were sold on September 10, 2026, at a weighted average price of $84.2011, with individual transaction prices ranging from $84.00 to $84.468.
  • Post-transaction ownership: Following both transactions, Martin directly holds 26,743 shares of Anterix common stock.
  • Reporting person roles: Martin is identified in the filing as both Chief Marketing Officer and Chief of Staff of Anterix Inc.
  • Signatory: The filing was signed by Gena L. Ashe as attorney-in-fact on September 11, 2026.

Anterix Officer Discloses Two Common Stock Transactions in September 2026

According to the filing, Anterix Inc. (NASDAQ:ATEX) is the issuer of the securities covered by this disclosure. Anterix is a wireless communications company. Heather Martin, serving in the dual capacity of Chief Marketing Officer and Chief of Staff, reported two separate transactions involving the company's common stock across consecutive trading days.

The first transaction, dated September 9, 2026, involved 3,465 shares of common stock disposed of under transaction code "F," meaning the shares were withheld by the issuer. The filing states these shares were withheld "to satisfy withholding obligations in connection with the partial vesting and settlement of restricted stock units," at a price of $85.44 per share. Following this transaction, Martin held 34,807 shares directly.

The second transaction, dated September 10, 2026, was coded "S," indicating an open-market sale. Martin sold 8,064 shares at a weighted average price of $84.2011. The filing notes that the shares "were sold in multiple transactions at prices ranging from $84.468 to $84.00, inclusive," and that full detail on shares sold at each specific price is available upon request to the issuer, any security holder, or SEC staff. After this sale, Martin's direct beneficial ownership stood at 26,743 shares. No derivative securities were reported in Table II of the filing.

What Was Disclosed

The filing disclosed two transactions by Anterix's Chief Marketing Officer and Chief of Staff: a withholding of 3,465 shares for tax obligations on September 9, 2026, and an open-market sale of 8,064 shares on September 10, 2026, leaving a direct holding of 26,743 shares.