Anterix Inc (ATEX)
Who owns Anterix Inc (ATEX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 69.6% of the shares are freely tradable; institutional investors hold 91.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Owl Creek Asset Management LP | 28.61 | 5,411,776 | +0.0 | 03/31/2026 |
| Heard Capital LLC | 9.08 | 1,716,738 | +0.0 | 03/31/2026 |
| BlackRock Inc | 5.32 | 1,007,143 | -1.1 | 03/31/2026 |
| Vanguard Group Inc | 4.92 | 931,305 | -7.6 | 12/31/2025 |
| Vanguard Capital Management, LLC | 3.03 | 573,847 | +0.0 | 03/31/2026 |
| Qvt Financial LP | 2.66 | 503,941 | +0.0 | 03/31/2026 |
| PlusTick Management LLC | 2.64 | 499,596 | +0.0 | 03/31/2026 |
| Gamco Investors, Inc. Et Al | 2.25 | 425,820 | +0.8 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.25 | 424,856 | +30.8 | 03/31/2026 |
| Jane Street Group LLC | 2.23 | 420,857 | +164.7 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 13. Jul 2026 | Marquez Elena | Chief Financial Officer | Other | 231 | 100.96 | 23,322 |
| 13. Jul 2026 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Other | 1,516 | 100.96 | 153,055 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.
View all insider transactions →Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.