Anterix Inc.
ATEX- Exchange
- Nasdaq
- Industry
- Telephone Communications (No Radiotelephone)
- SEC CIK
- 0001304492
In the last 90 days, Anterix Inc. insiders filed 0 open-market purchases and 10 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $1.97B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Anterix Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 117
- +6 vs. Q3 2025
- Shares held
- 16.2M
- +213.1K (+1.3%) vs. Q3 2025
- Total value
- $353.3M
- +$12.1M (+3.5%) vs. Q3 2025
- New holders
- 25
- 36 more added
- Sold out
- 19
- 42 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATEX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 171 | $1.97B |
| Q1 2026 | 132 | $646.5M |
| Q4 2025 | 117 | $353.3M |
| Q3 2025 | 111 | $341.2M |
| Q2 2025 | 112 | $431.0M |
| Q1 2025 | 130 | $598.6M |
| Q4 2024 | 116 | $490.5M |
| Q3 2024 | 129 | $593.7M |
| Q2 2024 | 115 | $593.3M |
| Q1 2024 | 98 | $493.3M |
| Q4 2023 | 93 | $492.4M |
| Q3 2023 | 98 | $472.2M |
| Q2 2023 | 95 | $491.3M |
| Q1 2023 | 88 | $515.5M |
| Q4 2022 | 92 | $503.6M |
| Q3 2022 | 100 | $567.4M |
| Q2 2022 | 95 | $620.9M |
| Q1 2022 | 109 | $881.6M |
| Q4 2021 | 108 | $892.1M |
| Q3 2021 | 108 | $920.4M |
| Q2 2021 | 107 | $912.0M |
| Q1 2021 | 97 | $731.0M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Anterix Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Jane Street Group, LLC | 159,014 | $3.47M | 0.00% | +116,731+276.1% | Added |
| Potomac Capital Management, Inc. | 161,400 | $3.52M | 2.95% | +161,400 | New |
| AYAL Capital Advisors Ltd | 265,000 | $5.78M | 3.17% | +56,029+26.8% | Added |
| Marshall Wace, LLP | 291,255 | $6.36M | 0.01% | +4,674+1.6% | Added |
| Gabelli Funds LLC | 304,907 | $6.66M | 0.05% | +18,625+6.5% | Added |
| Dimensional Fund Advisors LP | 324,923 | $7.09M | 0.00% | +13,633+4.4% | Added |
| State Street Corp | 333,788 | $7.29M | 0.00% | +17,017+5.4% | Added |
| Geode Capital Management, LLC | 360,139 | $7.86M | 0.00% | −1,190−0.3% | Reduced |
| Garnet Equity Capital Holdings, Inc. | 397,395 | $8.68M | 4.32% | 00.0% | Unchanged |
| Gamco Investors, Inc. Et Al | 422,470 | $9.22M | 0.09% | +102,400+32.0% | Added |
| Millennium Management LLC | 439,946 | $9.60M | 0.01% | +404,838+1,153.1% | Added |
| Jefferies Financial Group Inc. | 454,508 | $9.92M | 0.08% | +454,508 | New |
| QVT Financial LP | 503,941 | $11.0M | 1.04% | 00.0% | Unchanged |
| Vanguard Group Inc | 931,305 | $20.3M | 0.00% | −77,072−7.6% | Reduced |
| BlackRock, Inc. | 1,018,275 | $22.2M | 0.00% | −13,460−1.3% | Reduced |
| Heard Capital LLC | 1,716,738 | $37.5M | 1.76% | 00.0% | Unchanged |
| Owl Creek Asset Management, L.P. | 5,411,776 | $118.1M | 14.22% | 00.0% | Unchanged |
| Scoggin Management LP | 0 | $0 | 0.00% | −225,000−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −31,400−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −27,051−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −19,459−100.0% | Sold out |
| FourThought Financial Partners, LLC | 0 | $0 | 0.00% | −14,406−100.0% | Sold out |
| NJ State Employees Deferred Compensation Plan | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| New Age Alpha Advisors, LLC | 0 | $0 | 0.00% | −4,238−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,659−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −1,185−100.0% | Sold out |
| Versant Capital Management, Inc | 0 | $0 | 0.00% | −362−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −226−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −103−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −74,983−100.0% | Sold out |