Anterix's three largest insider shareholders as of April 17, 2026 are William Heard (Director, 1.74Mn shares), William Heard (Director, 1.72Mn shares), Jeffrey A Altman (Director, 124.19K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William Heard | - | 0 | 1,744,238 | 17 Apr, 2025 |
| William Heard | - | 0 | 1,716,738 | 17 Apr, 2025 |
| Jeffrey A Altman | - | 124,192 | 0 | 01 Dec, 2023 |
| Robert Harris Schwartz | President And Ceo | 115,867 | 0 | 26 Aug, 2024 |
| Timothy Gray | Chief Financial Officer | 77,022 | 0 | 20 Aug, 2025 |
| Christopher Guttman-Mccabe | Chief Reg Comm Officer | 42,892 | 0 | 15 Jul, 2025 |
| Ryan Gerbrandt | Chief Operating Officer | 42,362 | 0 | 15 Jul, 2025 |
| Paul N Saleh | - | 24,175 | 0 | 30 Aug, 2023 |
| Morgan E Obrien | Executive Chairman | 23,973 | 0 | 17 Dec, 2024 |
| Singleton B Mcallister | - | 21,599 | 0 | 30 Aug, 2023 |
| Elena Marquez | Chief Financial Officer | 18,029 | 0 | 04 Nov, 2025 |
| Greg Haller | - | 17,414 | 0 | 30 Aug, 2023 |
| Thomas R. Kuhn | - | 16,594 | 0 | 16 Jun, 2025 |
| Mark Fleischhauer | - | 16,269 | 0 | 07 Aug, 2025 |
| Jeffrey A Altman | - | 15,416 | 0 | 07 Aug, 2025 |
| Gregory A Pratt | - | 13,939 | 0 | 30 Aug, 2023 |
| Hamid Akhavan | - | 10,706 | 0 | 18 Nov, 2021 |
| William Heard | - | 9,654 | 0 | 07 Aug, 2025 |
| Scott A. Lang | President And Ceo | 8,260 | 0 | 18 Dec, 2025 |
| William Heard | - | 1,887 | 0 | 05 Mar, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Mar, 2026 | Gena L Ashe | Common Stock | A | 12,427 | $27.83 | 25,793 | D | M |
| 03 Mar, 2026 | Gena L Ashe | Common Stock | D | 12,427 | $36.18 | 13,366 | D | F |
| 03 Mar, 2026 | Gena L Ashe | Stock Option (Right to Buy) | D | 12,427 | $0.00 | 24,848 | D | M |
| 18 Dec, 2025 | Scott A. Lang | Common Stock | A | 1,160 | $21.61 | 8,260 | D | P |
| 08 Dec, 2025 | Scott A. Lang | Common Stock | A | 2,450 | $20.41 | 7,100 | D | P |
| 18 Nov, 2025 | Gena L Ashe | Common Stock | D | 6,564 | $21.07 | 13,366 | D | S |
| 29 Sep, 2025 | Elena Marquez | Common Stock | A | 11,405 | $0.00 | 18,433 | D | A |
| 04 Oct, 2025 | Elena Marquez | Common Stock | D | 404 | $22.55 | 18,029 | D | F |
| 18 Sep, 2025 | Scott A. Lang | Common Stock | A | 4,650 | $21.28 | 4,650 | D | P |
| 19 Aug, 2025 | Timothy Gray | Common Stock | A | 50 | $22.07 | 77,022 | D | P |
| 05 Aug, 2025 | William Heard | Common Stock, par value $0.0001 per share (Common Stock) | A | 7,767 | $0.00 | 9,654 | D | A |
| 05 Aug, 2025 | Leslie B Daniels | Common Stock | A | 7,767 | $0.00 | 54,479 | D | A |
| 05 Aug, 2025 | Jeffrey A Altman | Common Stock, par value $0.0001 per share (Common Stock) | A | 7,767 | $0.00 | 15,416 | D | A |
| 05 Aug, 2025 | Mahvash Yazdi | Common Stock | A | 7,767 | $0.00 | 26,407 | D | A |
| 05 Aug, 2025 | Mark Fleischhauer | Common Stock | A | 7,767 | $0.00 | 16,269 | D | A |
| 12 Jul, 2025 | Ryan Gerbrandt | Common Stock | D | 1,470 | $23.95 | 42,362 | D | F |
| 12 Jul, 2025 | Christopher Guttman-Mccabe | Common Stock | D | 1,517 | $23.95 | 42,892 | D | F |
| 12 Jun, 2025 | Thomas R. Kuhn | Common Stock | A | 6,222 | $0.00 | 16,594 | D | A |
| 21 May, 2025 | Scott A. Lang | Stock Option (Right to Buy) | A | 223,546 | $0.00 | 223,546 | D | A |
| 22 May, 2025 | Gena L Ashe | Common Stock | D | 2,732 | $28.35 | 19,930 | D | F |