ATEX (Anterix Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by ATEX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-27 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | MIXED | — | — |
| 2026-08-26 | Thomas R. Kuhn | Director | MIXED | — | — |
| 2026-08-20 | William Heard | Director | G | — | — |
| 2026-08-18 | William Heard | Director | Sell | — | — |
| 2026-08-17 | Scott A. Lang | President and CEO | Sell | — | — |
| 2026-08-14 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | Sell | — | — |
| 2026-08-07 | William Heard | Director | G | — | — |
| 2026-08-07 | William Heard | Director | G | — | — |
| 2026-08-06 | MAHVASH YAZDI | Director | A | — | — |
| 2026-08-06 | Mark Fleischhauer | Director | A | — | — |
| 2026-08-06 | LESLIE B DANIELS | Director | A | — | — |
| 2026-08-06 | William Heard | Director | A | — | — |
| 2026-08-06 | Owl Creek Asset Management, L.P. | 10%+ Owner | A | — | — |
| 2026-08-06 | Owl Creek Asset Management, L.P. | 10%+ Owner | A | — | — |
| 2026-08-06 | MAHVASH YAZDI | Director | A | — | — |
| 2026-08-06 | Mark Fleischhauer | Director | A | — | — |
| 2026-08-06 | LESLIE B DANIELS | Director | A | — | — |
| 2026-08-06 | William Heard | Director | A | — | — |
| 2026-07-14 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | F | — | — |
| 2026-07-14 | Elena Marquez | Chief Financial Officer | F | — | — |
| 2026-07-10 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | — | — | — |
| 2026-06-22 | Scott A. Lang | President and CEO | Sell | — | — |
| 2026-06-18 | Elena Marquez | Chief Financial Officer | MIXED | — | — |
| 2026-06-17 | Mark Fleischhauer | Director | Sell | — | — |
| 2026-06-17 | Scott A. Lang | President and CEO | MIXED | — | — |
| 2026-06-17 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | MIXED | — | — |
| 2026-06-17 | MAHVASH YAZDI | Director | Sell | — | — |
| 2026-06-17 | Gena L Ashe | Chief Legal Officer & Corp Sec | MIXED | — | — |
| 2026-05-26 | Gena L Ashe | Chief Legal Officer & Corp Sec | F | — | — |
| 2026-05-22 | Elena Marquez | Chief Financial Officer | A | — | — |
| 2026-05-22 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | A | — | — |
| 2026-05-22 | Scott A. Lang | President and CEO | A | — | — |
| 2026-05-22 | Heather Martin | Chief Marketing Officer | A | — | — |
| 2026-05-22 | Gena L Ashe | Chief Legal Officer & Corp Sec | A | — | — |
| 2026-05-20 | Gena L Ashe | Chief Legal Officer & Corp Sec | F | — | — |
| 2026-05-20 | Christopher Guttman-McCabe | Chief Reg & Comm Officer | F | — | — |
| 2026-05-19 | Elena Marquez | Chief Financial Officer | F | — | — |
| 2026-03-04 | Gena L Ashe | Chief Legal Officer & Corp Sec | MIXED | — | — |
| 2025-12-19 | Scott A. Lang | President and CEO | Buy | — | — |
| 2025-12-10 | Scott A. Lang | President and CEO | Buy | — | — |
| 2025-11-19 | Gena L Ashe | Chief Legal Officer & Corp Sec | Sell | — | — |
| 2025-11-04 | Elena Marquez | Chief Financial Officer | MIXED | — | — |
| 2025-09-19 | Scott A. Lang | President and CEO | Buy | — | — |
| 2025-08-21 | Timothy Gray | Chief Financial Officer | Buy | — | — |
| 2025-08-07 | LESLIE B DANIELS | Director | A | — | — |
| 2025-08-07 | William Heard | Director | A | — | — |
| 2025-08-07 | JEFFREY A ALTMAN | Director | A | — | — |
| 2025-08-07 | Mark Fleischhauer | Director | A | — | — |
| 2025-08-07 | MAHVASH YAZDI | Director | A | — | — |
| 2025-07-15 | Ryan Gerbrandt | Chief Operating Officer | F | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 5,536,268 | — |
| — | 10%+ Owner | 5,536,268 | — |
| — | 10%+ Owner | 5,406,033 | — |
| — | 10%+ Owner | 5,279,315 | — |
| — | 10%+ Owner | 5,017,362 | — |
| — | 10%+ Owner | 4,851,041 | — |
| — | 10%+ Owner | 4,753,860 | — |
| — | 10%+ Owner | 1,701,599 | — |
| — | Director | 1,674,303 | — |
| — | Chairman Emeritus | 335,922 | — |
| — | President and CEO | 115,867 | — |
| — | Chief Financial Officer | 77,022 | — |
| — | President and CEO | 75,727 | — |
| — | Director | 61,077 | — |
| — | Chief Reg & Comm Officer | 55,152 | — |
| — | Chief Operating Officer | 42,362 | — |
| — | Chief Marketing Officer | 38,272 | — |
| — | Chief Acc Officer, Treasurer | 36,646 | — |
| — | Chief Legal Officer & Corp Sec | 24,531 | — |
| — | Director | 24,175 | — |
| — | Executive Chairman | 23,973 | — |
| — | Director | 23,339 | — |
| — | Director | 21,755 | — |
| — | Director | 21,599 | — |
| — | Chief Financial Officer | 18,156 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ATEX quote page; the site-wide leaderboard is on the insider transactions hub.