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, Q1 2026
Institutional positions in Anterix Inc. as of Mar 31, 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
- 132
- +18 vs. Q4 2025
- Shares held
- 16.9M
- +1.70M (+11.2%) vs. Q4 2025
- Total value
- $646.5M
- +$313.9M (+94.4%) vs. Q4 2025
- New holders
- 38
- 46 more added
- Sold out
- 20
- 26 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Anterix Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Owl Creek Asset Management, L.P. | 5,411,776 | $206.7M | 39.93% | 00.0% | Unchanged |
| Heard Capital LLC | 1,716,738 | $65.6M | 3.39% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,007,143 | $38.5M | 0.00% | −11,132−1.1% | Reduced |
| Vanguard Capital Management LLC | 573,847 | $21.9M | 0.00% | +573,847 | New |
| QVT Financial LP | 503,941 | $19.2M | 1.52% | 00.0% | Unchanged |
| Plustick Management LLC | 499,596 | $19.1M | 9.21% | +499,596 | New |
| Gamco Investors, Inc. Et Al | 425,820 | $16.3M | 0.16% | +3,350+0.8% | Added |
| Dimensional Fund Advisors LP | 424,856 | $16.2M | 0.00% | +99,933+30.8% | Added |
| Jane Street Group, LLC | 420,857 | $16.1M | 0.02% | +261,843+164.7% | Added |
| State Street Corp | 387,918 | $14.8M | 0.00% | +54,130+16.2% | Added |
| Geode Capital Management, LLC | 374,301 | $14.3M | 0.00% | +14,162+3.9% | Added |
| Garnet Equity Capital Holdings, Inc. | 343,496 | $13.1M | 7.45% | −53,899−13.6% | Reduced |
| Millennium Management LLC | 307,922 | $11.8M | 0.01% | −132,024−30.0% | Reduced |
| Gabelli Funds LLC | 265,800 | $10.2M | 0.07% | −39,107−12.8% | Reduced |
| Potrero Capital Research LLC | 229,561 | $8.77M | 5.38% | +229,561 | New |
| AYAL Capital Advisors Ltd | 197,119 | $7.53M | 3.85% | −67,881−25.6% | Reduced |
| HRT Financial LP | 174,925 | $6.68M | 0.02% | +131,835+306.0% | Added |
| Potomac Capital Management, Inc. | 173,802 | $6.64M | 5.80% | +12,402+7.7% | Added |
| DG Capital Management, LLC | 168,217 | $6.42M | 2.78% | +146,972+691.8% | Added |
| Bank of America Corp | 167,781 | $6.41M | 0.00% | +24,657+17.2% | Added |
| Vanguard Portfolio Management LLC | 164,542 | $6.28M | 0.00% | +164,542 | New |
| Goldman Sachs Group Inc | 161,786 | $6.18M | 0.00% | +37,156+29.8% | Added |
| Citadel Advisors LLC | 161,163 | $6.15M | 0.00% | +52,783+48.7% | Added |
| Charles Schwab Investment Management Inc | 141,388 | $5.40M | 0.00% | +2,711+2.0% | Added |
| FMR LLC | 135,295 | $5.17M | 0.00% | +84,251+165.1% | Added |
| Panoramic Capital, LLC | 135,000 | $5.16M | 3.62% | +135,000 | New |
| CenterBook Partners LP | 127,674 | $4.88M | 0.26% | +127,674 | New |
| Citigroup Inc | 119,861 | $4.58M | 0.00% | +119,233+18,986.1% | Added |
| Vanguard Fiduciary Trust Co | 119,456 | $4.56M | 0.00% | +119,456 | New |
| Northern Trust Corp | 117,610 | $4.49M | 0.00% | +3,348+2.9% | Added |
| Kirr Marbach & Co LLC | 113,814 | $4.35M | 0.79% | +13,396+13.3% | Added |
| Ardsley Advisory Partners LP | 110,000 | $4.20M | 0.64% | +110,000 | New |
| Morgan Stanley | 102,658 | $3.92M | 0.00% | −6,787−6.2% | Reduced |
| Beartown Capital Management, LLC | 100,000 | $3.82M | 3.01% | −45,000−31.0% | Reduced |
| Gratia Capital, LLC | 87,500 | $3.34M | 3.16% | +87,500 | New |
| Atom Investors LP | 84,179 | $3.21M | 0.23% | +1,094+1.3% | Added |
| OpenArc Corporate Advisory, LLC | 73,848 | $2.82M | 0.04% | +73,848 | New |
| Bank of New York Mellon Corp | 67,836 | $2.59M | 0.00% | −956−1.4% | Reduced |
| Waterfront Wealth Inc. | 59,955 | $2.29M | 0.42% | +11,328+23.3% | Added |
| Squarepoint Ops LLC | 59,736 | $2.28M | 0.00% | +6,619+12.5% | Added |
| Marble Bar Asset Management LLP | 53,509 | $2.04M | 2.01% | +40,243+303.4% | Added |
| Teton Advisors, LLC | 53,000 | $2.02M | 1.42% | 00.0% | Unchanged |
| Resolute Capital Asset Partners LLC | 51,106 | $1.95M | 1.03% | +51,106 | New |
| UBS Group AG | 47,875 | $1.83M | 0.00% | −912−1.9% | Reduced |
| 683 Capital Management, LLC | 46,000 | $1.76M | 0.16% | +46,000 | New |
| Simplex Trading, LLC | 43,750 | $1.67M | 0.05% | +21,200+94.0% | Added |
| Campbell & CO Investment Adviser LLC | 40,460 | $1.55M | 0.09% | +12,955+47.1% | Added |
| Trexquant Investment LP | 40,175 | $1.53M | 0.01% | −6,223−13.4% | Reduced |
| Susquehanna International Group, LLP | 39,798 | $1.52M | 0.00% | +11,055+38.5% | Added |
| Creative Planning | 31,964 | $1.22M | 0.00% | +1,185+3.9% | Added |
| IMC-Chicago, LLC | 30,363 | $1.16M | 0.02% | +16,986+127.0% | Added |
| Schonfeld Strategic Advisors LLC | 23,211 | $886.4K | 0.01% | −26,251−53.1% | Reduced |
| Nuveen, LLC | 22,875 | $873.6K | 0.00% | −30,280−57.0% | Reduced |
| Proficio Capital Partners LLC | 20,000 | $763.8K | 0.04% | 00.0% | Unchanged |
| Apis Capital Advisors, LLC | 19,740 | $753.9K | 0.12% | +19,740 | New |
| Woodmont Investment Counsel LLC | 18,307 | $699.1K | 0.04% | +991+5.7% | Added |
| Virtu Financial LLC | 17,885 | $683.0K | 0.03% | +17,885 | New |
| GWN Securities Inc. | 16,468 | $628.9K | 0.12% | +16,468 | New |
| STRS Ohio | 15,700 | $599.6K | 0.00% | −10,800−40.8% | Reduced |
| Quantinno Capital Management LP | 15,619 | $596.5K | 0.00% | +6,132+64.6% | Added |
| Quadrature Capital Ltd | 14,502 | $553.8K | 0.01% | +14,502 | New |
| Rhumbline Advisers | 14,115 | $539.0K | 0.00% | −803−5.4% | Reduced |
| CWM Advisors, LLC | 13,309 | $508.3K | 0.03% | +13,309 | New |
| State of Wisconsin Investment Board | 13,269 | $506.7K | 0.00% | −5,163−28.0% | Reduced |
| Jefferson Bridge Capital, LLC | 12,950 | $494.6K | 0.49% | 00.0% | Unchanged |
| FNY Investment Advisers, LLC | 11,221 | $428.0K | 0.19% | +11,221 | New |
| AQR Capital Management LLC | 11,100 | $423.9K | 0.00% | +11,100 | New |
| Deutsche Bank AG | 9,444 | $360.7K | 0.00% | +5,155+120.2% | Added |
| Toronto Dominion Bank | 9,100 | $347.5K | 0.00% | +4,800+111.6% | Added |
| J. Goldman & Co LP | 9,033 | $345.0K | 0.02% | +9,033 | New |
| ExodusPoint Capital Management, LP | 8,794 | $335.8K | 0.00% | +8,794 | New |
| Quantbot Technologies LP | 8,619 | $329.2K | 0.01% | +8,619 | New |
| Covestor Ltd | 8,507 | $325.0K | 0.23% | −3,524−29.3% | Reduced |
| Price T Rowe Associates Inc | 7,955 | $304.0K | 0.00% | +7,955 | New |
| Gem Investment Advisors, LLC | 7,183 | $274.3K | 0.27% | +7,183 | New |
| Vanguard Global Advisers, LLC | 6,966 | $266.0K | 0.00% | +6,966 | New |
| Alliancebernstein L.P. | 12,130 | $264.8K | 0.00% | −3,300−21.4% | Reduced |
| American Century Companies Inc | 6,661 | $254.4K | 0.00% | +6,661 | New |
| MetLife Investment Management | 6,602 | $252.1K | 0.00% | −145−2.1% | Reduced |
| Prudential Financial Inc | 6,457 | $246.6K | 0.00% | +6,457 | New |
| Central Pacific Bank - Trust Division | 6,000 | $229.1K | 0.03% | 00.0% | Unchanged |
| Wells Fargo & Company | 5,903 | $225.4K | 0.00% | −6,469−52.3% | Reduced |
| D. E. Shaw & Co., Inc. | 5,696 | $217.5K | 0.00% | −56,069−90.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 5,425 | $207.2K | 0.00% | +211+4.0% | Added |
| Skopos Labs, Inc. | 5,284 | $201.8K | 0.01% | +5,284 | New |
| JPMorgan Chase & Co | 5,076 | $185.2K | 0.00% | +403+8.6% | Added |
| Virtus ETF Advisers LLC | 3,500 | $133.7K | 0.06% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 3,069 | $117.2K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,034 | $116.0K | 0.00% | +1,826+151.2% | Added |
| Crewe Advisors LLC | 3,000 | $114.6K | 0.01% | +3,000 | New |
| New York State Common Retirement Fund | 2,709 | $103.5K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2,477 | $94.6K | 0.00% | −14−0.6% | Reduced |
| Legal & General Group Plc | 2,396 | $91.5K | 0.00% | −157−6.1% | Reduced |
| Barclays PLC | 2,160 | $82.5K | 0.00% | −16,629−88.5% | Reduced |
| Fifth Third Bancorp | 1,685 | $64.3K | 0.00% | +1,685 | New |
| Russell Investments Group, Ltd. | 1,134 | $43.3K | 0.00% | −150−11.7% | Reduced |
| IFP Advisors, Inc | 1,078 | $41.2K | 0.00% | +1,078 | New |
| Ameritas Investment Partners, Inc. | 1,033 | $39.5K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 933 | $35.6K | 0.00% | +363+63.7% | Added |
| Tower Research Capital LLC (TRC) | 856 | $32.7K | 0.00% | +248+40.8% | Added |