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, Q3 2025
Institutional positions in Anterix Inc. as of Sep 30, 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
- 111
- 0 vs. Q2 2025
- Shares held
- 16.0M
- −784.2K (−4.7%) vs. Q2 2025
- Total value
- $341.2M
- −$88.5M (−20.6%) vs. Q2 2025
- New holders
- 26
- 31 more added
- Sold out
- 26
- 40 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Anterix Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State Street Corp | 316,771 | $6.80M | 0.00% | −27,293−7.9% | Reduced |
| Gamco Investors, Inc. Et Al | 320,070 | $6.87M | 0.07% | +46,645+17.1% | Added |
| Geode Capital Management, LLC | 361,329 | $7.76M | 0.00% | −22,228−5.8% | Reduced |
| Garnet Equity Capital Holdings, Inc. | 397,395 | $8.53M | 3.74% | 00.0% | Unchanged |
| QVT Financial LP | 503,941 | $10.8M | 1.20% | 00.0% | Unchanged |
| DG Capital Management, LLC | 744,544 | $16.0M | 9.24% | −113,495−13.2% | Reduced |
| Vanguard Group Inc | 1,008,377 | $21.6M | 0.00% | −35,236−3.4% | Reduced |
| BlackRock, Inc. | 1,031,735 | $22.2M | 0.00% | −108,744−9.5% | Reduced |
| Heard Capital LLC | 1,716,738 | $36.9M | 1.79% | 00.0% | Unchanged |
| Owl Creek Asset Management, L.P. | 5,411,776 | $116.2M | 13.19% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 74,983 | – | – | +74,963+374,815.0% | Added |
| Clearbridge Investments, LLC | 0 | $0 | 0.00% | −203,541−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −36,349−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −25,860−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −20,096−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −19,850−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −18,140−100.0% | Sold out |
| Pekin Hardy Strauss, Inc. | 0 | $0 | 0.00% | −16,250−100.0% | Sold out |
| CWM Advisors, LLC | 0 | $0 | 0.00% | −15,158−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −13,900−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −13,714−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −13,640−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −9,376−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −8,196−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,865−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −3,822−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −2,649−100.0% | Sold out |
| KLP Kapitalforvaltning AS | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| Great West Life Assurance Co | 0 | $0 | 0.00% | −974−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −439−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −165−100.0% | Sold out |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0 | $0 | 0.00% | −173−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −135−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | 0 | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Cornerstone Planning Group LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Teton Advisors, Inc. | – | – | – | – | Not filed |