Welcome to our dedicated page for Anterix SEC filings (Ticker: ATEX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Anterix Inc. filings document the company’s 900 MHz private wireless broadband spectrum business, including material-event reports on spectrum license sale agreements, operating and financial results, Regulation FD updates, and capital-structure disclosures. The records include disclosures tied to broadband license sales, narrowband-to-broadband license exchanges, spectrum clearing costs, contracted proceeds, and the Demonstrated Intent key performance indicator.
The company’s SEC filings also cover governance matters, executive compensation and severance arrangements, shareholder voting matters, risk factors, and regulatory developments affecting broadband use of the 900 MHz band. Material agreements involving its wholly owned subsidiary, PDV Spectrum Holding Company, LLC, are documented through Form 8-K exhibits and related event disclosures.
Anterix Inc. (ATEX) director Leslie B. Daniels reported selling a total of 10,100 shares of Anterix common stock in open-market transactions on September 3–4, 2026. Reported prices included $87.15, $87.3103 and $86.50 per share, with some prices stated as weighted averages over intraday ranges.
After these transactions, Daniels was reported as holding 2,000 shares indirectly through an IRA and 5,000 shares indirectly through a 401(k) plan as of September 3, 2026. No Rule 10b5-1 trading plan was reported for these sales.
Anterix Inc. (ATEX) reported that Chief Reg & Comm Officer Christopher Guttman-McCabe exercised a stock option for 40,000 shares of common stock at an exercise price of $37.42 per share. The option was fully vested. The exercise was paid on a cashless basis, with the issuer withholding 16,561 shares to cover the exercise price and related income tax withholding and remittance obligations. On the same date, the reporting person sold an aggregate of 23,439 shares of common stock in open-market transactions at weighted average prices ranging from about $94.22 to $90.06 per share. The transactions were not reported as being made pursuant to a Rule 10b5-1 trading plan.
Anterix Inc. (ATEX) director and Executive Chairman Thomas R. Kuhn reported an option exercise and related share sales. On August 24, 2026, he exercised stock options for 10,000 shares of common stock at an exercise price of $33.62 per share, reducing that option position to 48,998 shares. He then sold an aggregate of 10,000 common shares in multiple open-market transactions on the same date at weighted-average prices between the high $80s and low $90s per share, plus an additional 1,654 shares sold on June 18, 2026 at $79.52 per share to cover tax withholding on RSU settlements. Earlier, on May 20, 2026, he received a grant of 2,791 restricted stock units, each representing one share of common stock, vesting in full on the earlier of May 20, 2027 or Anterix’s next annual stockholder meeting.
Anterix Inc. (ATEX) received a notice that officer Christopher Guttman-McCabe plans to sell 23,439 shares of common stock, with an aggregate market value of $2,164,837.76, on or about 08/25/2026 under Rule 144 following a stock option exercise. Common shares outstanding are reported as 19,609,786. In the prior three months, Guttman-McCabe reported sales of 122,852 shares of common stock for $10,042,745.59.
Anterix Inc. (ATEX) director Thomas Kuhn filed a Rule 144 notice indicating an intention to sell 10,000 shares of Anterix common stock through Morgan Stanley Smith Barney LLC on 08/24/2026, in connection with a stock option exercise. The proposed sale has an approximate aggregate market value of $888,527.00. Kuhn previously sold 1,654 shares of common stock on 06/18/2026 for proceeds of $131,526.08.
Anterix Inc. (ATEX) director William Heard reported a bona fide gift of 5,400 shares of Common Stock on 2026-08-19. The filing notes this represents a charitable donation of shares to a Donor Advised Fund. Following the gift, he directly holds 3,965 shares of Common Stock.
The filing also reports 1,670,338 shares of Common Stock held indirectly through certain investment funds and/or accounts for which Heard Capital LLC serves as investment manager. William Heard is the ultimate beneficial owner of Heard Capital LLC, and both Heard Capital LLC and William Heard disclaim beneficial ownership of these indirectly held securities for Section 16 purposes, except to the extent of their pecuniary interest.
Anterix Inc. (ATEX) director William Heard, through entities associated with Heard Capital LLC, reported a sale of 46,400 shares of Common Stock on 2026-08-14. The weighted average sale price was $90.1098 per share, with individual trades executed between $89.9942 and $90.115. After this transaction, investment funds and/or accounts for which Heard Capital LLC serves as investment manager held 1,670,338 shares reported as indirect ownership, and 9,365 shares were reported as directly owned. The reporting person and Heard Capital LLC each disclaim beneficial ownership of these securities for Section 16 purposes except to the extent of pecuniary interest.
Anterix Inc. President and CEO Scott A. Lang reported open-market sales of 35,057 shares of Common Stock on August 14, 2026. The reported per-share prices include 800 shares at $91.69, plus additional blocks sold at weighted average prices that reflect multiple trades within specified price ranges.
ATEX insider Scott Lang filed a notice of proposed sales of common stock. The filing lists brokerage firm Morgan Stanley Smith Barney LLC’s Executive Financial Services group as involved. It records two blocks of exercised shares from the issuer dated June 15, 2026 and a subsequent sale of 170 shares of common stock on June 18, 2026 for $13,642.50 within the prior three months.
Anterix Inc. insider Christopher Guttman-McCabe, Chief Reg & Comm Officer, reported multiple open-market sales of common stock on June 15, 2026 totaling 122,852 shares at weighted average prices between $78.7255 and $84.4012 per share. A Form 4/A amendment corrects the originally reported amounts, reflecting an additional 31,415 shares sold and revised beneficial ownership figures.