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, Q2 2026
Institutional positions in Anterix Inc. as of Jun 30, 2026. 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
- 171
- +42 vs. Q1 2026
- Shares held
- 19.1M
- +2.18M (+12.9%) vs. Q1 2026
- Total value
- $1.97B
- +$1.32B (+204.2%) vs. Q1 2026
- New holders
- 58
- 44 more added
- Sold out
- 16
- 48 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $415.9M |
| Q2 2025 | 112 | $431.4M |
| Q1 2025 | 130 | $598.6M |
| Q4 2024 | 116 | $490.5M |
| Q3 2024 | 129 | $595.0M |
| Q2 2024 | 115 | $593.8M |
| Q1 2024 | 98 | $515.9M |
| Q4 2023 | 93 | $502.7M |
| Q3 2023 | 98 | $472.2M |
| Q2 2023 | 95 | $491.3M |
| Q1 2023 | 88 | $520.8M |
| Q4 2022 | 92 | $503.6M |
| Q3 2022 | 100 | $567.4M |
| Q2 2022 | 95 | $620.9M |
| Q1 2022 | 109 | $881.6M |
| Q4 2021 | 108 | $893.2M |
| Q3 2021 | 108 | $920.4M |
| Q2 2021 | 107 | $912.0M |
| Q1 2021 | 97 | $731.1M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Anterix Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Owl Creek Asset Management, L.P. | 5,411,776 | $557.1M | 49.39% | 00.0% | Unchanged |
| T. Rowe Price Investment Management, Inc. | 2,348,019 | $241.7M | 0.16% | +2,348,019 | New |
| Heard Capital LLC | 1,716,738 | $176.7M | 7.56% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,075,115 | $110.7M | 0.00% | +67,972+6.7% | Added |
| Price T Rowe Associates Inc | 750,451 | $77.3M | 0.01% | +742,496+9,333.7% | Added |
| Jupiter Topco LLC | 662,415 | $68.2M | 0.03% | +662,415 | New |
| Vanguard Capital Management LLC | 553,002 | $56.9M | 0.00% | −20,845−3.6% | Reduced |
| Plustick Management LLC | 520,000 | $53.5M | 22.69% | +20,404+4.1% | Added |
| State Street Corp | 495,950 | $51.1M | 0.00% | +108,032+27.8% | Added |
| Gamco Investors, Inc. Et Al | 415,520 | $42.8M | 0.38% | −10,300−2.4% | Reduced |
| Geode Capital Management, LLC | 388,076 | $40.0M | 0.00% | +13,775+3.7% | Added |
| QVT Financial LP | 383,941 | $39.5M | 2.53% | −120,000−23.8% | Reduced |
| Dimensional Fund Advisors LP | 370,964 | $38.2M | 0.01% | −53,892−12.7% | Reduced |
| FMR LLC | 370,400 | $38.1M | 0.00% | +235,105+173.8% | Added |
| Gabelli Funds LLC | 278,500 | $28.7M | 0.18% | +12,700+4.8% | Added |
| Invesco Ltd. | 200,975 | $20.7M | 0.00% | +200,975 | New |
| Vanguard Portfolio Management LLC | 158,469 | $16.3M | 0.00% | −6,073−3.7% | Reduced |
| Garnet Equity Capital Holdings, Inc. | 156,119 | $16.1M | 7.20% | −187,377−54.5% | Reduced |
| Potomac Capital Management, Inc. | 155,071 | $16.0M | 11.68% | −18,731−10.8% | Reduced |
| Panoramic Capital, LLC | 154,377 | $15.9M | 6.84% | +19,377+14.4% | Added |
| Goldman Sachs Group Inc | 139,334 | $14.3M | 0.00% | −22,452−13.9% | Reduced |
| Charles Schwab Investment Management Inc | 139,278 | $14.3M | 0.00% | −2,110−1.5% | Reduced |
| Bank of America Corp | 134,686 | $13.9M | 0.00% | −33,095−19.7% | Reduced |
| Northern Trust Corp | 123,231 | $12.7M | 0.00% | +5,621+4.8% | Added |
| Vanguard Fiduciary Trust Co | 120,999 | $12.5M | 0.00% | +1,543+1.3% | Added |
| Kirr Marbach & Co LLC | 116,069 | $11.9M | 2.01% | +2,255+2.0% | Added |
| D. E. Shaw & Co., Inc. | 92,990 | $9.57M | 0.01% | +87,294+1,532.5% | Added |
| Morgan Stanley | 80,425 | $8.28M | 0.00% | −22,233−21.7% | Reduced |
| OpenArc Corporate Advisory, LLC | 75,576 | $7.78M | 0.09% | +1,728+2.3% | Added |
| Beartown Capital Management, LLC | 75,000 | $7.72M | 3.43% | −25,000−25.0% | Reduced |
| Granahan Investment Management Inc | 72,121 | $7.42M | 0.26% | +72,121 | New |
| Bank of New York Mellon Corp | 69,374 | $7.14M | 0.00% | +1,538+2.3% | Added |
| Marble Bar Asset Management LLP | 68,248 | $7.03M | 4.87% | +14,739+27.5% | Added |
| 683 Capital Management, LLC | 66,000 | $6.79M | 0.62% | +20,000+43.5% | Added |
| Citigroup Inc | 59,998 | $6.18M | 0.00% | −59,863−49.9% | Reduced |
| Trexquant Investment LP | 53,423 | $5.50M | 0.03% | +13,248+33.0% | Added |
| TD Asset Management Inc | 53,258 | $5.48M | 0.00% | +53,258 | New |
| EAM Investors, LLC | 52,534 | $5.41M | 0.48% | +52,534 | New |
| Potrero Capital Research LLC | 46,525 | $4.79M | 2.93% | −183,036−79.7% | Reduced |
| Teton Advisors, LLC | 43,000 | $4.43M | 2.56% | −10,000−18.9% | Reduced |
| Nuveen, LLC | 35,798 | $3.69M | 0.00% | +12,923+56.5% | Added |
| Creative Planning | 34,541 | $3.56M | 0.00% | +2,577+8.1% | Added |
| Gilder Gagnon Howe & Co LLC | 32,833 | $3.38M | 0.03% | +32,833 | New |
| Wellington Management Group LLP | 31,006 | $3.19M | 0.00% | +31,006 | New |
| HRT Financial LP | 30,673 | $3.16M | 0.01% | −144,252−82.5% | Reduced |
| Millennium Management LLC | 30,340 | $3.12M | 0.00% | −277,582−90.1% | Reduced |
| EVR Research LP | 25,000 | $2.57M | 1.27% | +25,000 | New |
| UBS Group AG | 24,018 | $2.47M | 0.00% | −23,857−49.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 21,084 | $2.17M | 0.11% | −19,376−47.9% | Reduced |
| Harbor Capital Advisors, Inc. | 20,805 | $2.14M | 0.15% | +20,805 | New |
| Hanseatic Management Services Inc | 18,418 | $1.90M | 1.39% | +18,418 | New |
| Caption Management, LLC | 17,532 | $1.80M | 0.06% | +17,532 | New |
| Jane Street Group, LLC | 17,506 | $1.80M | 0.00% | −403,351−95.8% | Reduced |
| Quantinno Capital Management LP | 17,229 | $1.77M | 0.00% | +1,610+10.3% | Added |
| Woodmont Investment Counsel LLC | 16,973 | $1.75M | 0.10% | −1,334−7.3% | Reduced |
| State of Wisconsin Investment Board | 16,070 | $1.65M | 0.00% | +2,801+21.1% | Added |
| JPMorgan Chase & Co | 16,489 | $1.62M | 0.00% | +11,413+224.8% | Added |
| American Century Companies Inc | 15,731 | $1.62M | 0.00% | +9,070+136.2% | Added |
| Deutsche Bank AG | 15,643 | $1.61M | 0.00% | +6,199+65.6% | Added |
| Toronto Dominion Bank | 15,600 | $1.61M | 0.00% | +6,500+71.4% | Added |
| Wells Fargo & Company | 14,648 | $1.51M | 0.00% | +8,745+148.1% | Added |
| Rhumbline Advisers | 14,337 | $1.48M | 0.00% | +222+1.6% | Added |
| AQR Capital Management LLC | 13,437 | $1.38M | 0.00% | +2,337+21.1% | Added |
| Caxton Associates LLP | 13,432 | $1.38M | 0.03% | +13,432 | New |
| GWN Securities Inc. | 13,425 | $1.38M | 0.23% | −3,043−18.5% | Reduced |
| Quadrature Capital Ltd | 12,979 | $1.34M | 0.01% | −1,523−10.5% | Reduced |
| Jefferson Bridge Capital, LLC | 12,950 | $1.33M | 1.16% | 00.0% | Unchanged |
| LPL Financial LLC | 12,353 | $1.27M | 0.00% | +12,353 | New |
| Vanguard Global Advisers, LLC | 10,841 | $1.12M | 0.00% | +3,875+55.6% | Added |
| FCG Investment Co | 10,762 | $1.11M | 0.38% | +10,762 | New |
| Waterfront Wealth Inc. | 10,714 | $1.08M | 0.17% | −49,241−82.1% | Reduced |
| Numerai GP LLC | 10,271 | $1.06M | 0.09% | +10,271 | New |
| STRS Ohio | 9,800 | $1.01M | 0.00% | −5,900−37.6% | Reduced |
| Citadel Advisors LLC | 9,014 | $927.9K | 0.00% | −152,149−94.4% | Reduced |
| Gotham Asset Management, LLC | 8,867 | $912.8K | 0.00% | +8,867 | New |
| XTX Topco Ltd | 8,582 | $883.4K | 0.01% | +8,582 | New |
| Gem Investment Advisors, LLC | 7,183 | $739.4K | 0.45% | 00.0% | Unchanged |
| CenterBook Partners LP | 6,877 | $707.9K | 0.03% | −120,797−94.6% | Reduced |
| MetLife Investment Management | 6,651 | $684.7K | 0.00% | +49+0.7% | Added |
| Covestor Ltd | 6,637 | $683.0K | 0.39% | −1,870−22.0% | Reduced |
| CWM Advisors, LLC | 6,604 | $679.8K | 0.03% | −6,705−50.4% | Reduced |
| Occudo Quantitative Strategies LP | 6,562 | $675.5K | 0.04% | +6,562 | New |
| Prudential Financial Inc | 6,532 | $672.4K | 0.00% | +75+1.2% | Added |
| Aster Capital Management (DIFC) Ltd | 6,100 | $627.9K | 0.13% | +6,100 | New |
| Central Pacific Bank - Trust Division | 6,000 | $617.6K | 0.06% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 5,584 | $574.8K | 0.00% | −34,214−86.0% | Reduced |
| First Trust Advisors LP | 5,578 | $574.2K | 0.00% | +5,578 | New |
| Simplex Trading, LLC | 5,377 | $553.5K | 0.01% | −38,373−87.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 5,290 | $544.6K | 0.00% | −135−2.5% | Reduced |
| Alliancebernstein L.P. | 13,330 | $509.1K | 0.00% | +1,200+9.9% | Added |
| Cornerstone Investment Partners, LLC | 4,866 | $500.9K | 0.02% | +4,866 | New |
| Dark Forest Capital Management LP | 4,720 | $485.9K | 0.03% | +4,720 | New |
| New York State Common Retirement Fund | 4,509 | $464.2K | 0.00% | +1,800+66.4% | Added |
| Baader Bank INC | 4,500 | $463.2K | 0.04% | +4,500 | New |
| Aquatic Capital Management LLC | 4,299 | $442.5K | 0.02% | +4,299 | New |
| Atom Investors LP | 4,124 | $424.5K | 0.04% | −80,055−95.1% | Reduced |
| Brevan Howard Capital Management LP | 4,028 | $414.6K | 0.01% | +4,028 | New |
| Mirabella Financial Services LLP | 4,025 | $414.3K | 0.04% | +4,025 | New |
| Virtus ETF Advisers LLC | 3,976 | $409.3K | 0.16% | +476+13.6% | Added |
| State Board of Administration of Florida Retirement System | 3,975 | $409.2K | 0.00% | +3,975 | New |