14 insiders reported 91 Form 4 transactions for Anterix Inc. (ATEX) over the past 18 months (most recent 2026-08-20). Recent activity: Heard William (Director) Sell 5,400 shares, Heard William (Director) Sell 46,400 shares, Lang Scott A. (President and CEO) Sell 800 shares, Lang Scott A. (President and CEO) Sell 10,087 shares, Lang Scott A. (President and CEO) Sell 18,797 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Heard William | Director | Sell | 5,400 | $0 |
| 2026-08-18 | Heard William | Director | Sell | 46,400 | $4.2M |
| 2026-08-17 | Lang Scott A. | President and CEO | Sell | 800 | $73,352 |
| 2026-08-17 | Lang Scott A. | President and CEO | Sell | 10,087 | $916,603 |
| 2026-08-17 | Lang Scott A. | President and CEO | Sell | 18,797 | $1.7M |
| 2026-08-17 | Lang Scott A. | President and CEO | Sell | 5,373 | $478,006 |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 7,755 | $654,531 |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 5,030 | $400,034 |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 21,434 | $1.7M |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 34,870 | $2.8M |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 21,045 | $1.7M |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 21,050 | $1.8M |
| 2026-08-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 11,668 | $918,569 |
| 2026-08-07 | Heard William | Director | Sell | 1,887 | $0 |
| 2026-08-06 | ALTMAN JEFFREY A | Director | Buy | 1,598 | $0 |
| 2026-08-06 | Owl Creek Asset Management, L.P. | 10% Owner | Buy | 1,598 | $0 |
| 2026-08-06 | Heard William | Director | Buy | 1,598 | $0 |
| 2026-08-06 | Fleischhauer Mark | Director | Buy | 1,598 | $0 |
| 2026-08-06 | YAZDI MAHVASH | Director | Buy | 1,598 | $0 |
| 2026-08-06 | DANIELS LESLIE B | Director | Buy | 1,598 | $0 |
| 2026-07-14 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sell | 1,516 | $153,055 |
| 2026-07-14 | Marquez Elena | Chief Financial Officer | Sell | 231 | $23,322 |
| 2026-06-22 | Lang Scott A. | President and CEO | Sell | 170 | $13,642 |
| 2026-06-18 | Marquez Elena | Chief Financial Officer | Buy | 1,226 | $49,040 |
| 2026-06-18 | Marquez Elena | Chief Financial Officer | Sell | 4,291 | $341,134 |
Source: SEC Form 4 filings · as of 2026-08-20