AnterixATEX
13F holders, Q3 2025 (September 30)111holders
25new positions
26sold out
6famous investors
$23.73avg. 13F price*
At the end of Q3 2025, 111 institutions reported holding Anterix Inc. (ATEX) in their 13F filings, unchanged from Q2 2025. 25 opened new positions and 26 sold out. The largest holders were Owl Creek Asset Management, L.P. ($116.2M), SBI Securities Co., Ltd. ($37.7M) and Heard Capital LLC ($36.9M). 6 famous investors held it, including Mario Gabelli (0.1% of GAMCO Investors's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Anterix Inc.
- CUSIP
- 03676C100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 25 | $6.3M |
| Exits | 26 | $11.1M |
All 13F filers, Q2 2025 → Q3 2025: 827,892 shares bought and 1,670,137 shares sold, net −842,245 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 111 holders
| Owl Creek Asset Management, L.P. | 13.19% | No change | 5,411,776 | $116.2M |
| SBI Securities Co., Ltd. | 0.97% | Add +374815.0% | 74,983 | $37.7M |
| Heard Capital LLC | 1.79% | No change | 1,716,738 | $36.9M |
| BlackRock, Inc. | 0.00% | Reduce -9.5% | 1,031,735 | $22.2M |
| Vanguard Group Inc. | 0.00% | Reduce -3.4% | 1,008,377 | $21.6M |
| DG Capital Management, LLC | 10.41% | Reduce -13.2% | 744,544 | $16.0M |
| QVT Financial LP | 1.24% | No change | 503,941 | $10.8M |
| Garnet Equity Capital Holdings, Inc. | 3.74% | No change | 397,395 | $8.5M |
| Geode Capital Management, LLC | 0.00% | Reduce -5.8% | 361,329 | $7.8M |
| GAMCO Investors | 0.07% | Add +17.1% | 320,070 | $6.9M |
| State Street Corp. | 0.00% | Reduce -7.9% | 316,771 | $6.8M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -7.7% | 311,290 | $6.7M |
| FMR LLC | 0.00% | Reduce -10.6% | 287,789 | $6.2M |
| Marshall Wace, LLP | 0.01% | Add +51.6% | 286,581 | $6.2M |
| Gabelli Funds LLC | 0.04% | Add +52.1% | 286,282 | $6.1M |
| Scoggin Management LP | 1.91% | Reduce -25.0% | 225,000 | $4.8M |
| AYAL Capital Advisors Ltd | 2.59% | Reduce -13.0% | 208,971 | $4.5M |
| Qube Research & Technologies Ltd | 0.01% | Add +0.2% | 203,589 | $4.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +84.0% | 163,452 | $3.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.5% | 138,078 | $3.0M |
| Bank of America Corp. | 0.00% | Reduce -34.5% | 136,489 | $2.9M |
| D. E. Shaw & Co. | 0.00% | Reduce -43.6% | 131,075 | $2.8M |
| Tudor Investment Corporation | 0.02% | Add +9.8% | 128,681 | $2.8M |
| Northern Trust Corp. | 0.00% | Reduce -16.3% | 117,005 | $2.5M |
| Citadel Advisors | 0.00% | Reduce -59.3% | 111,094 | $2.4M |
| Kirr Marbach & Co. LLC | 0.38% | Add +0.1% | 96,849 | $2.1M |
| Balyasny Asset Management L.P. | 0.00% | No change | 93,276 | $2.0M |
| Man Group plc | 0.00% | Add +35.0% | 75,714 | $1.6M |
| Morgan Stanley | 0.00% | Reduce -59.5% | 72,443 | $1.6M |
| HRT Financial LP | 0.00% | New | 62,133 | $1.3M |
| Gsa Capital Partners LLP | 0.11% | Add +312.8% | 59,652 | $1.3M |
| Teton Advisors, LLC | 0.77% | — | 58,000 | $1.2M |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.18% | Add +219.3% | 52,200 | $1.1M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -0.4% | 49,462 | $1.1M |
| UBS Group AG | 0.00% | Reduce -14.5% | 45,621 | $979K |
| Creative Planning | 0.00% | New | 43,694 | $938K |
| Jane Street Group, LLC | 0.00% | New | 42,283 | $908K |
| Trexquant Investment LP | 0.01% | Reduce -0.2% | 39,986 | $858K |
| Bank of New York Mellon Corp | 0.00% | Add +4.6% | 39,607 | $850K |
| Millennium Management | 0.00% | Reduce -39.0% | 35,108 | $754K |
| Y-Intercept (Hong Kong) Ltd | 0.02% | Reduce -49.3% | 31,400 | $674K |
| Atom Investors LP | 0.05% | New | 27,988 | $601K |
| Sandia Investment Management LP | 1.78% | New | 27,340 | $587K |
| Proficio Capital Partners LLC | 0.04% | New | 27,340 | $587K |
| Engineers Gate Manager LP | 0.01% | Add +8.8% | 27,051 | $581K |
| Nuveen, LLC | 0.00% | Reduce -88.4% | 22,735 | $488K |
| Campbell & CO Investment Adviser LLC | 0.03% | Add +65.0% | 20,800 | $447K |
| Royal Bank of Canada | 0.00% | Add +12.9% | 20,411 | $438K |
| Squarepoint Ops LLC | 0.00% | Reduce -1.4% | 19,461 | $418K |
| AQR Capital Management | 0.00% | New | 19,459 | $418K |
| EntryPoint Capital, LLC | 0.16% | New | 19,225 | $413K |
| Rhumbline Advisers | 0.00% | Reduce -36.5% | 17,781 | $382K |
| Woodmont Investment Counsel LLC | 0.02% | Reduce -40.3% | 17,352 | $373K |
| Barclays PLC | 0.00% | Reduce -33.9% | 16,401 | $352K |
| Susquehanna International Group, LLP | 0.00% | Add +0.7% | 15,724 | $338K |
| FourThought Financial Partners, LLC | 0.03% | New | 14,406 | $309K |
| Deutsche Bank AG | 0.00% | Reduce -2.0% | 13,609 | $292K |
| Alliancebernstein L.P. | 0.00% | Add +16.8% | 13,230 | $284K |
| STRS Ohio | 0.00% | Add +11300.0% | 11,400 | $245K |
| NJ State Employees Deferred Compensation Plan | 0.03% | No change | 11,000 | $236K |
| Covestor Ltd | 0.11% | Add +15.5% | 9,523 | $204K |
| MetLife Investment Management, LLC | 0.00% | No change | 7,699 | $165K |
| Wells Fargo & Company | 0.00% | Add +4.3% | 6,971 | $150K |
| Central Pacific Bank - Trust Division | 0.02% | No change | 6,000 | $129K |
| AlphaQuest LLC | 0.01% | Add +12.8% | 5,435 | $117K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -26.1% | 5,235 | $112K |
| JPMorgan Chase & Co. | 0.00% | Reduce -60.2% | 4,993 | $107K |
| New Age Alpha Advisors, LLC | 0.00% | No change | 4,238 | $91K |
| Virtus Advisers, LLC | 0.04% | No change | 3,500 | $75K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 3,069 | $66K |
| Simplex Trading, LLC | 0.00% | New | 2,968 | $63K |
| New York State Common Retirement Fund | 0.00% | No change | 2,709 | $58K |
| Quantbot Technologies LP | 0.00% | New | 2,659 | $57K |
| Legal & General Group Plc | 0.00% | Reduce -77.0% | 2,599 | $56K |
| BNP Paribas Financial Markets | 0.00% | Reduce -6.2% | 2,254 | $48K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -62.5% | 2,158 | $46K |
| Group One Trading LLC | 0.00% | Reduce -22.8% | 1,514 | $33K |
| FNY Investment Advisers, LLC | 0.01% | Reduce -21.1% | 1,500 | $32K |
| Citigroup Inc. | 0.00% | Reduce -75.2% | 1,307 | $28K |
| Quadrant Capital Group LLC | 0.00% | New | 1,185 | $25K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -36.2% | 1,050 | $23K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,033 | $22K |
| California State Teachers Retirement System | 0.00% | Reduce -89.9% | 810 | $17K |
| Cwm, LLC | 0.00% | Add +399.4% | 814 | $17K |
| Amalgamated Bank | 0.00% | No change | 436 | $9K |
| Arax Advisory Partners | 0.00% | New | 383 | $8K |
| Versant Capital Management, Inc | 0.00% | Add +1545.5% | 362 | $8K |
| US Bancorp \de | 0.00% | Add +142.0% | 288 | $6K |
| CIBC Private Wealth Group LLC | 0.00% | New | 226 | $5K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -2.4% | 203 | $4K |
| Osaic Holdings, Inc. | 0.00% | Add +2.4% | 169 | $4K |
| Signaturefd, LLC | 0.00% | Add +14300.0% | 144 | $3K |
| Farther Finance Advisors, LLC | 0.00% | Add +737.5% | 134 | $3K |
| Optiver Holding B.V. | 0.00% | New | 124 | $3K |
| Clearstead Advisors, LLC | 0.00% | New | 103 | $2K |
| Allworth Financial LP | 0.00% | Add +321.4% | 59 | $1K |
| WPG Advisers, LLC | 0.00% | Reduce -46.6% | 55 | $1K |
| Parallel Advisors, LLC | 0.00% | Add +140.9% | 53 | $1K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +657.1% | 53 | $1K |
| Federated Hermes, Inc. | 0.00% | Reduce -82.0% | 50 | $1K |
| Essential Partners LLC | 0.00% | Add +1033.3% | 34 | $730 |
| PNC Financial Services Group, Inc. | 0.00% | New | 33 | $709 |
| Principal Securities, Inc. | 0.00% | New | 29 | $623 |
| Sterling Capital Management LLC | 0.00% | Reduce -12.9% | 27 | $580 |
| Blue Trust, Inc. | 0.00% | New | 27 | $580 |
| Fortitude Family Office, LLC | 0.00% | New | 20 | $429 |
| Hughes Financial Services, LLC | 0.00% | New | 23 | $417 |
| GAMMA Investing LLC | 0.00% | New | 9 | $193 |
| True Wealth Design, LLC | 0.00% | New | 8 | $172 |
| Rothschild Investment LLC | 0.00% | New | 5 | $107 |
| Advisory Services Network, LLC | 0.00% | New | 5 | $107 |
"% of holder's portfolio" is ATEX's weight in each manager's 13F, not the share of Anterix Inc. the manager owns.