In the last 12 months, insiders at Anterix made open-market purchases of $75,072 (3.61K shares) and open-market sales of $33.2 million (398.44K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | William Heard | Director | 3,965 | 1,670,338 | 1,674,303 | 70.7% | 20 Aug, 2026 |
| 2 | Jeffrey A Altman | Director, TenPercentOwner | 141,206 | 0 | 141,206 | 6.0% | 06 Aug, 2026 |
| 3 | Robert Harris Schwartz | President And Ceo | 115,867 | 0 | 115,867 | 4.9% | 26 Aug, 2024 |
| 4 | Timothy Gray | Chief Financial Officer | 77,022 | 0 | 77,022 | 3.3% | 20 Aug, 2025 |
| 5 | Christopher Guttman-Mccabe | Chief Reg Comm Officer | 44,876 | 0 | 44,876 | 1.9% | 27 Aug, 2026 |
| 6 | Leslie B Daniels | Director | 43,477 | 0 | 43,477 | 1.8% | 11 Sep, 2026 |
| 7 | Ryan Gerbrandt | Chief Operating Officer | 42,362 | 0 | 42,362 | 1.8% | 15 Jul, 2025 |
| 8 | Heather Martin | Chief Marketing Officer | 26,743 | 0 | 26,743 | 1.1% | 11 Sep, 2026 |
| 9 | Scott A. Lang | President And Ceo | 26,470 | 0 | 26,470 | 1.1% | 23 Sep, 2026 |
| 10 | Paul N Saleh | Director | 24,175 | 0 | 24,175 | 1.0% | 30 Aug, 2023 |
| 11 | Morgan E Obrien | Executive Chairman | 23,973 | 0 | 23,973 | 1.0% | 17 Dec, 2024 |
| 12 | Singleton B Mcallister | Director | 21,599 | 0 | 21,599 | 0.9% | 30 Aug, 2023 |
| 13 | Mahvash Yazdi | Director | 21,005 | 0 | 21,005 | 0.9% | 06 Aug, 2026 |
| 14 | Greg Haller | Director | 17,414 | 0 | 17,414 | 0.7% | 30 Aug, 2023 |
| 15 | Thomas R. Kuhn | Director, Other | 16,594 | 0 | 16,594 | 0.7% | 16 Jun, 2025 |
| 16 | Mark Fleischhauer | Director | 14,367 | 0 | 14,367 | 0.6% | 06 Aug, 2026 |
| 17 | Gregory A Pratt | Director | 13,939 | 0 | 13,939 | 0.6% | 30 Aug, 2023 |
| 18 | Elena Marquez | Chief Financial Officer | 12,604 | 0 | 12,604 | 0.5% | 09 Oct, 2026 |
| 19 | Gena L Ashe | Chief Legal Officer Corp Sec | 9,238 | 0 | 9,238 | 0.4% | 09 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed S | 3,254 | $80.16 | $260.85K | 13,104 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed S | 400 | $81.80 | $32.72K | 12,704 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed S | 100 | $82.50 | $8.25K | 12,604 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Acquired M | 1,227 | $40.00 | $49.08K | 13,831 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed S | 1,017 | $80.22 | $81.59K | 12,814 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed S | 210 | $81.90 | $17.20K | 12,604 | Direct |
| 09 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed M | 1,227 | $0.00 | $0 | 1,227 | Direct |
| 05 Oct, 2026 | Elena Marquez | Chief Financial Officer | Disposed F | 473 | $84.33 | $39.89K | 16,358 | Direct |
| 29 Sep, 2026 | Elena Marquez | Chief Financial Officer | Disposed F | 1,325 | $81.75 | $108.32K | 16,831 | Direct |
| 21 Sep, 2026 | Scott A. Lang | President And Ceo | Disposed S | 15,000 | $80.00 | $1.20Mn | 26,470 | Direct |
| 21 Sep, 2026 | Scott A. Lang | President And Ceo | Disposed S | 15,000 | $80.00 | $1.20Mn | 26,470 | Direct |
| 10 Sep, 2026 | Leslie B Daniels | Director | Disposed S | 2,500 | $83.83 | $209.58K | 43,477 | Direct |
| 09 Sep, 2026 | Heather Martin | Chief Marketing Officer | Disposed F | 3,465 | $85.44 | $296.05K | 34,807 | Direct |
| 10 Sep, 2026 | Heather Martin | Chief Marketing Officer | Disposed S | 8,064 | $84.20 | $679.00K | 26,743 | Direct |
| 08 Sep, 2026 | Gena L Ashe | Chief Legal Officer Corp Sec | Disposed S | 293 | $85.44 | $25.03K | 9,238 | Direct |
| 08 Sep, 2026 | Gena L Ashe | Chief Legal Officer Corp Sec | Acquired M | 6,833 | $34.96 | $238.88K | 16,071 | Direct |
| 08 Sep, 2026 | Gena L Ashe | Chief Legal Officer Corp Sec | Disposed F | 2,769 | $86.27 | $238.88K | 13,302 | Direct |
| 08 Sep, 2026 | Gena L Ashe | Chief Legal Officer Corp Sec | Disposed S | 4,064 | $85.44 | $347.23K | 9,238 | Direct |
| 08 Sep, 2026 | Gena L Ashe | Chief Legal Officer Corp Sec | Disposed M | 6,833 | $0.00 | $0 | 35,658 | Direct |
| 03 Sep, 2026 | Leslie B Daniels | Director | Disposed S | 6,000 | $87.15 | $522.90K | 50,077 | Direct |