AnterixATEX
13F holders, Q4 2025 (December 31)117holders +6
21new positions
18sold out
5famous investors
$21.84avg. 13F price*
At the end of Q4 2025, 117 institutions reported holding Anterix Inc. (ATEX) in their 13F filings, up 6 from Q3 2025. 21 opened new positions and 18 sold out. The largest holders were Owl Creek Asset Management, L.P. ($118.1M), Heard Capital LLC ($37.5M) and BlackRock, Inc. ($22.2M). 5 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 Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Anterix Inc.
- CUSIP
- 03676C100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $14.9M |
| Exits | 18 | $44.7M |
All 13F filers, Q3 2025 → Q4 2025: 1,731,134 shares bought and 1,839,666 shares sold, net −108,532 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 117 holders
| Owl Creek Asset Management, L.P. | 14.22% | No change | 5,411,776 | $118.1M |
| Heard Capital LLC | 1.76% | No change | 1,716,738 | $37.5M |
| BlackRock, Inc. | 0.00% | Reduce -1.3% | 1,018,275 | $22.2M |
| Vanguard Group Inc. | 0.00% | Reduce -7.6% | 931,305 | $20.3M |
| QVT Financial LP | 1.06% | No change | 503,941 | $11.0M |
| Jefferies Financial Group Inc. | 0.08% | New | 454,508 | $9.9M |
| Millennium Management | 0.01% | Add +1153.1% | 439,946 | $9.6M |
| GAMCO Investors | 0.09% | Add +32.0% | 422,470 | $9.2M |
| Garnet Equity Capital Holdings, Inc. | 4.32% | No change | 397,395 | $8.7M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.3% | 360,139 | $7.9M |
| State Street Corp. | 0.00% | Add +5.4% | 333,788 | $7.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +4.4% | 324,923 | $7.1M |
| Gabelli Funds LLC | 0.05% | Add +6.5% | 304,907 | $6.7M |
| Marshall Wace, LLP | 0.01% | Add +1.6% | 291,255 | $6.4M |
| AYAL Capital Advisors Ltd | 3.17% | Add +26.8% | 265,000 | $5.8M |
| Potomac Capital Management, Inc. | 2.95% | — | 161,400 | $3.5M |
| Jane Street Group, LLC | 0.00% | Add +276.1% | 159,014 | $3.5M |
| Beartown Capital Management, LLC | 2.48% | — | 145,000 | $3.2M |
| Bank of America Corp. | 0.00% | Add +4.9% | 143,124 | $3.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.4% | 138,677 | $3.0M |
| Tudor Investment Corporation | 0.02% | Reduce -2.9% | 124,943 | $2.7M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -38.8% | 124,646 | $2.7M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -23.8% | 124,630 | $2.7M |
| Northern Trust Corp. | 0.00% | Reduce -2.3% | 114,262 | $2.5M |
| Morgan Stanley | 0.00% | Add +51.1% | 109,445 | $2.4M |
| Citadel Advisors | 0.00% | Reduce -2.4% | 108,380 | $2.4M |
| Kirr Marbach & Co. LLC | 0.42% | Add +3.7% | 100,418 | $2.2M |
| Man Group plc | 0.00% | Add +32.3% | 100,145 | $2.2M |
| Atom Investors LP | 0.14% | Add +196.9% | 83,085 | $1.8M |
| Gsa Capital Partners LLP | 0.14% | Add +22.3% | 72,976 | $1.6M |
| Bank of New York Mellon Corp | 0.00% | Add +73.7% | 68,792 | $1.5M |
| D. E. Shaw & Co. | 0.00% | Reduce -52.9% | 61,765 | $1.3M |
| Nuveen, LLC | 0.00% | Add +133.8% | 53,155 | $1.2M |
| Squarepoint Ops LLC | 0.00% | Add +172.9% | 53,117 | $1.2M |
| Teton Advisors, LLC | 0.80% | Reduce -8.6% | 53,000 | $1.2M |
| Waterfront Wealth Inc. | 0.22% | New | 48,627 | $1.2M |
| FMR LLC | 0.00% | Reduce -82.3% | 51,044 | $1.1M |
| Schonfeld Strategic Advisors LLC | 0.01% | No change | 49,462 | $1.1M |
| UBS Group AG | 0.00% | Add +6.9% | 48,787 | $1.1M |
| SG Americas Securities, LLC | 0.00% | New | 48,509 | $1.1M |
| Trexquant Investment LP | 0.01% | Add +16.0% | 46,398 | $1.0M |
| HRT Financial LP | 0.00% | Reduce -30.6% | 43,090 | $940K |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 33,401 | $729K |
| Creative Planning | 0.00% | Reduce -29.6% | 30,779 | $672K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.10% | Reduce -41.3% | 30,650 | $669K |
| Susquehanna International Group, LLP | 0.00% | Add +82.8% | 28,743 | $627K |
| Campbell & CO Investment Adviser LLC | 0.03% | Add +32.2% | 27,505 | $600K |
| STRS Ohio | 0.00% | Add +132.5% | 26,500 | $578K |
| Simplex Trading, LLC | 0.01% | Add +659.8% | 22,550 | $492K |
| DG Capital Management, LLC | 0.51% | Reduce -97.2% | 21,245 | $464K |
| Sandia Investment Management LP | 1.10% | Reduce -26.9% | 20,000 | $437K |
| Proficio Capital Partners LLC | 0.03% | Reduce -26.9% | 20,000 | $437K |
| Barclays PLC | 0.00% | Add +14.6% | 18,789 | $410K |
| State of Wisconsin Investment Board | 0.00% | New | 18,432 | $402K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -81.0% | 17,740 | $387K |
| Woodmont Investment Counsel LLC | 0.02% | Reduce -0.2% | 17,316 | $378K |
| Alliancebernstein L.P. | 0.00% | Add +16.6% | 15,430 | $337K |
| EntryPoint Capital, LLC | 0.13% | Reduce -21.9% | 15,012 | $328K |
| Rhumbline Advisers | 0.00% | Reduce -16.1% | 14,918 | $326K |
| XTX Topco Ltd | 0.01% | New | 14,255 | $311K |
| IMC-Chicago, LLC | 0.01% | New | 13,377 | $292K |
| Marble Bar Asset Management LLP | 6.71% | — | 13,266 | $290K |
| Jefferson Bridge Capital, LLC | 0.28% | — | 12,950 | $283K |
| Verition Fund Management LLC | 0.00% | New | 12,600 | $275K |
| Wells Fargo & Company | 0.00% | Add +77.5% | 12,372 | $270K |
| Covestor Ltd | 0.14% | Add +26.3% | 12,031 | $263K |
| Caption Management, LLC | 0.01% | New | 10,493 | $229K |
| Quantinno Capital Management LP | 0.00% | New | 9,487 | $207K |
| AlphaQuest LLC | 0.01% | Add +62.0% | 8,802 | $192K |
| Aquatic Capital Management LLC | 0.01% | New | 8,675 | $189K |
| MetLife Investment Management, LLC | 0.00% | Reduce -12.4% | 6,747 | $147K |
| Group One Trading LLC | 0.00% | Add +307.9% | 6,175 | $135K |
| Central Pacific Bank - Trust Division | 0.02% | No change | 6,000 | $131K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -0.4% | 5,214 | $114K |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.4% | 4,673 | $102K |
| Toronto Dominion Bank | 0.00% | New | 4,300 | $94K |
| Deutsche Bank AG | 0.00% | Reduce -68.5% | 4,289 | $94K |
| Virtus Advisers, LLC | 0.04% | No change | 3,500 | $76K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 3,069 | $67K |
| New York State Common Retirement Fund | 0.00% | No change | 2,709 | $59K |
| Legal & General Group Plc | 0.00% | Reduce -1.8% | 2,553 | $56K |
| BNP Paribas Financial Markets | 0.00% | Add +10.5% | 2,491 | $54K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -40.5% | 1,284 | $28K |
| Royal Bank of Canada | 0.00% | Reduce -94.1% | 1,208 | $26K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,033 | $23K |
| California State Teachers Retirement System | 0.00% | Reduce -14.4% | 693 | $15K |
| Citigroup Inc. | 0.00% | Reduce -52.0% | 628 | $14K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -42.1% | 608 | $13K |
| Parallel Advisors, LLC | 0.00% | Add +975.5% | 570 | $12K |
| Amalgamated Bank | 0.00% | Reduce -18.8% | 354 | $8K |
| Cwm, LLC | 0.00% | Reduce -60.4% | 322 | $7K |
| Pinnacle Wealth Planning Services, Inc. | 0.00% | New | 304 | $7K |
| Signaturefd, LLC | 0.00% | Add +73.6% | 250 | $5K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 203 | $4K |
| Allworth Financial LP | 0.00% | Add +233.9% | 197 | $4K |
| PNC Financial Services Group, Inc. | 0.00% | Add +484.9% | 193 | $4K |
| Quarry LP | 0.00% | New | 188 | $4K |
| Private Wealth Management Group, LLC | 0.00% | New | 185 | $4K |
| Osaic Holdings, Inc. | 0.00% | Reduce -1.2% | 167 | $4K |
| Los Angeles Capital Management LLC | 0.00% | New | 141 | $3K |
"% of holder's portfolio" is ATEX's weight in each manager's 13F, not the share of Anterix Inc. the manager owns.