ANTERIX INC (ATEX)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
168
Reporting holders
$1.7B
Reported value
82.5%
Of shares outstanding
4.6%
Held as options
+38
Holder change
Institutions report 16,090,579 shares against 19,498,473 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Owl Creek Asset Management, L.P. | $557.1M | 5,411,776 | 46.08% | 28q | HELD |
| Heard Capital LLC | $176.7M | 1,716,738 | 7.56% | 23q | HELD |
| BlackRock, Inc. | $110.7M | 1,075,115 | 0.00% | 8q | +6.7%+$7.0M |
| Jupiter Topco LLC | $68.2M | 662,415 | 0.03% | new | FIRST |
| VANGUARD CAPITAL MANAGEMENT LLC | $56.9M | 553,002 | 0.00% | 2q | -3.6%-$2.1M |
| PLUSTICK MANAGEMENT LLC | $53.5M | 520,000 | 19.90% | 2q | +4.1%+$2.1M |
| STATE STREET CORP | $51.1M | 495,950 | 0.00% | 27q | +27.8%+$11.1M |
| GAMCO INVESTORS, INC. ET AL | $42.8M | 415,520 | 0.38% | 19q | -2.4%-$1.1M |
| GEODE CAPITAL MANAGEMENT, LLC | $40.0M | 388,076 | 0.00% | 28q | +3.7%+$1.4M |
| QVT Financial LP | $39.5M | 383,941 | 2.32% | 28q | -23.8%-$12.4M |
| DIMENSIONAL FUND ADVISORS LP | $38.2M | 370,964 | 0.01% | 28q | -12.7%-$5.5M |
| FMR LLC | $38.1M | 370,400 | 0.00% | 22q | +173.8%+$24.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $29.6M | 5,584 | 0.00% | 14q | -86.0%-$181.3M |
| GABELLI FUNDS LLC | $28.7M | 278,500 | 0.18% | 24q | +4.8%+$1.3M |
| Invesco Ltd. | $20.7M | 200,975 | 0.00% | new | NEW |
| Potomac Capital Management, Inc. | $17.0M | 155,071 | 11.60% | 3q | -10.8%-$2.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $16.3M | 158,469 | 0.00% | 2q | -3.7%-$625.2K |
| GROUP ONE TRADING LLC | $16.3M | options only | 0.02% | 2q | OPTIONS |
| GARNET EQUITY CAPITAL HOLDINGS, INC. | $16.1M | 156,119 | 3.03% | 24q | -54.5%-$19.3M |
| Panoramic Capital, LLC | $15.9M | 154,377 | 6.84% | 2q | +14.4%+$2.0M |
| GOLDMAN SACHS GROUP INC | $14.3M | 139,334 | 0.00% | 28q | -13.9%-$2.3M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $14.3M | 139,278 | 0.00% | 28q | -1.5%-$217.2K |
| Sixth Street Partners Management Company, L.P. | $14.3M | 139,278 | 0.00% | new | NEW |
| BANK OF AMERICA CORP /DE/ | $13.9M | 134,686 | 0.00% | 28q | -19.7%-$3.4M |
| NORTHERN TRUST CORP | $12.7M | 123,231 | 0.00% | 28q | +4.8%+$578.6K |
| VANGUARD FIDUCIARY TRUST CO | $12.5M | 120,999 | 0.00% | 2q | +1.3%+$158.8K |
| KIRR MARBACH & CO LLC /IN/ | $11.9M | 116,069 | 2.01% | 20q | +2.0%+$232.1K |
| CITADEL ADVISORS LLC | $11.9M | 9,014 | 0.00% | 16q | -94.4%-$201.6M |
| JANE STREET GROUP, LLC | $10.0M | 17,506 | 0.00% | 16q | -95.8%-$231.3M |
| D. E. Shaw & Co., Inc. | $9.9M | 92,990 | 0.00% | 28q | +1532.5%+$9.3M |
| Caption Management, LLC | $8.5M | 17,532 | 0.04% | 3q | HELD |
| MORGAN STANLEY | $8.3M | 80,425 | 0.00% | 28q | -21.7%-$2.3M |
| OpenArc Corporate Advisory, LLC | $7.8M | 75,576 | 0.09% | 2q | +2.3%+$177.9K |
| Beartown Capital Management, LLC | $7.7M | 75,000 | 3.39% | 3q | -25.0%-$2.6M |
| Granahan Investment Management, LLC | $7.4M | 72,121 | 0.26% | new | NEW |
| Bank of New York Mellon Corp | $7.1M | 69,374 | 0.00% | 28q | +2.3%+$158.3K |
| Marble Bar Asset Management LLP | $7.0M | 68,248 | 4.87% | 3q | +27.5%+$1.5M |
| 683 Capital Management, LLC | $6.8M | 66,000 | 0.33% | 2q | +43.5%+$2.1M |
| CITIGROUP INC | $6.2M | 59,998 | 0.00% | 28q | -49.9%-$6.2M |
| Trexquant Investment LP | $5.5M | 53,423 | 0.03% | 5q | +33.0%+$1.4M |
| TD Asset Management Inc | $5.5M | 53,258 | 0.00% | new | NEW |
| IMC-Chicago, LLC | $5.5M | 2,929 | 0.00% | 2q | -90.4%-$51.2M |
| Informed Momentum Co LLC | $5.4M | 52,534 | 0.48% | new | NEW |
| Potrero Capital Research LLC | $4.8M | 46,525 | 2.66% | 2q | -79.7%-$18.8M |
| Teton Advisors, LLC | $4.4M | 43,000 | 2.56% | 4q | -18.9%-$1.0M |
| Nuveen, LLC | $3.7M | 35,798 | 0.00% | 6q | +56.5%+$1.3M |
| Creative Planning | $3.6M | 34,541 | 0.00% | 4q | +8.1%+$265.3K |
| GILDER GAGNON HOWE & CO LLC | $3.4M | 32,833 | 0.03% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $3.2M | 31,006 | 0.00% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $3.1M | 30,340 | 0.00% | 13q | -90.1%-$28.6M |
| EVR Research LP | $2.6M | 25,000 | 1.27% | new | NEW |
| UBS Group AG | $2.5M | 24,018 | 0.00% | 28q | -49.8%-$2.5M |
| Campbell & CO Investment Adviser LLC | $2.2M | 21,084 | 0.11% | 5q | -47.9%-$2.0M |
| HANSEATIC MANAGEMENT SERVICES INC | $1.9M | 18,418 | 1.39% | new | NEW |
| Quantinno Capital Management LP | $1.8M | 17,229 | 0.00% | 3q | +10.3%+$165.7K |
| WOODMONT INVESTMENT COUNSEL LLC | $1.7M | 16,973 | 0.10% | 20q | -7.3%-$137.3K |
| STATE OF WISCONSIN INVESTMENT BOARD | $1.7M | 16,070 | 0.00% | 3q | +21.1%+$288.3K |
| JPMORGAN CHASE & CO | $1.6M | 16,489 | 0.00% | 28q | +224.8%+$1.1M |
| AMERICAN CENTURY COMPANIES INC | $1.6M | 15,731 | 0.00% | 2q | +136.2%+$933.7K |
| DEUTSCHE BANK AG\ | $1.6M | 15,643 | 0.00% | 28q | +65.6%+$638.1K |
| TORONTO DOMINION BANK | $1.6M | 15,600 | 0.00% | 3q | +71.4%+$669.1K |
| WELLS FARGO & COMPANY/MN | $1.5M | 14,648 | 0.00% | 28q | +24.1%+$292.6K |
| RHUMBLINE ADVISERS | $1.5M | 14,337 | 0.00% | 29q | +1.6%+$22.9K |
| AQR CAPITAL MANAGEMENT LLC | $1.4M | 13,437 | 0.00% | 2q | +21.1%+$240.6K |
| CAXTON ASSOCIATES LLP | $1.4M | 13,432 | 0.03% | new | NEW |
| GWN SECURITIES INC. | $1.4M | 13,425 | 0.23% | 2q | -18.5%-$313.2K |
| Quadrature Capital Ltd | $1.3M | 12,979 | 0.01% | 2q | -10.5%-$156.8K |
| Jefferson Bridge Capital, LLC | $1.3M | 12,950 | 1.16% | 3q | HELD |
| LPL Financial LLC | $1.3M | 12,353 | 0.00% | new | NEW |
| Vanguard Global Advisers, LLC | $1.1M | 10,841 | 0.00% | 2q | +55.6%+$398.9K |
| FCG Investment Co | $1.1M | 10,762 | 0.38% | new | NEW |
| Waterfront Wealth Inc. | $1.1M | 10,714 | 0.17% | 3q | -82.1%-$5.0M |
| Numerai GP LLC | $1.1M | 10,271 | 0.09% | new | NEW |
| STRS OHIO | $1.0M | 9,800 | 0.00% | 12q | -37.6%-$607.3K |
| Point72 Asset Management, L.P. | $957.3K | options only | 0.00% | new | OPTIONS |
| Gotham Asset Management, LLC | $912.8K | 8,867 | 0.00% | new | NEW |
| XTX Topco Ltd | $883.4K | 8,582 | 0.01% | new | NEW |
| SIMPLEX TRADING, LLC | $749.1K | 5,377 | 0.00% | 4q | -87.7%-$5.3M |
| Gem Investment Advisors, LLC | $739.4K | 7,183 | 0.45% | 2q | HELD |
| CenterBook Partners LP | $707.9K | 6,877 | 0.03% | 2q | -94.6%-$12.4M |
| MetLife Investment Management, LLC | $684.7K | 6,651 | 0.00% | 28q | +0.7%+$5.0K |
| Inspire Investing, LLC | $679.8K | 6,604 | 0.03% | 2q | -50.4%-$690.2K |
| OCCUDO QUANTITATIVE STRATEGIES LP | $675.5K | 6,562 | 0.04% | new | NEW |
| PRUDENTIAL FINANCIAL INC | $672.4K | 6,532 | 0.00% | 2q | +1.2%+$7.7K |
| Aster Capital Management (DIFC) Ltd | $627.9K | 6,100 | 0.07% | new | NEW |
| Central Pacific Bank - Trust Division | $617.6K | 6,000 | 0.06% | 6q | HELD |
| FIRST TRUST ADVISORS LP | $574.2K | 5,578 | 0.00% | new | NEW |
| MERCER GLOBAL ADVISORS INC /ADV | $559.2K | 5,432 | 0.00% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $544.6K | 5,290 | 0.00% | 9q | -2.5%-$13.9K |
| ALLIANCEBERNSTEIN L.P. | $509.1K | 13,330 | 0.00% | 28q | +9.9%+$45.8K |
| Cornerstone Investment Partners, LLC | $500.9K | 4,866 | 0.02% | new | NEW |
| DARK FOREST CAPITAL MANAGEMENT LP | $485.9K | 4,720 | 0.03% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $464.2K | 4,509 | 0.00% | 28q | +66.4%+$185.3K |
| Baader Bank Aktiengesellschaft | $463.2K | 4,500 | 0.03% | new | NEW |
| Aquatic Capital Management LLC | $442.5K | 4,299 | 0.02% | new | NEW |
| Atom Investors LP | $424.5K | 4,124 | 0.04% | 4q | -95.1%-$8.2M |
| Brevan Howard Capital Management LP | $414.6K | 4,028 | 0.00% | new | NEW |
| MIRABELLA FINANCIAL SERVICES LLP | $414.3K | 4,025 | 0.04% | new | NEW |
| VIRTUS ADVISERS, LLC | $409.3K | 3,976 | 0.16% | 5q | +13.6%+$49.0K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $409.2K | 3,975 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-27 | 13G | BlackRock, Inc. | 5.1% |
| 2026-07-08 | 13D/A | Jeffrey A. Altman INDIVIDUALwith 1 co-filers | 28.5% |
| 2026-07-08 | 13G | T. Rowe Price Investment Management, Inc. | 12.0% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 168 | $1.7B | 16,090,579 | 56 | 43 | 44 | 4.6% |
| Q1 2026 | 130 | $684.5M | 16,718,305 | 36 | 45 | 26 | 6.8% |
| Q4 2025 | 111 | $353.7M | 16,003,263 | 22 | 33 | 37 | 1.2% |
| Q3 2025 | 106 | $378.7M | 17,477,183 | 24 | 25 | 37 | 0.9% |
| Q2 2025 | 107 | $435.9M | 16,775,298 | 12 | 46 | 29 | 1.3% |
| Q1 2025 | 123 | $601.9M | 16,262,985 | 26 | 33 | 45 | 1.1% |
| Q4 2024 | 110 | $471.1M | 15,285,672 | 14 | 30 | 41 | 0.5% |
| Q3 2024 | 118 | $571.2M | 15,132,753 | 22 | 42 | 31 | 0.2% |
| Q2 2024 | 108 | $565.3M | 14,146,019 | 24 | 33 | 29 | 0.9% |
| Q1 2024 | 93 | $492.0M | 14,589,069 | 15 | 21 | 33 | 0.3% |
| Q4 2023 | 86 | $475.8M | 14,237,699 | 6 | 32 | 26 | 0.3% |
| Q3 2023 | 84 | $445.2M | 13,954,123 | 8 | 25 | 37 | 1.6% |
| Q2 2023 | 86 | $457.2M | 14,387,010 | 14 | 37 | 16 | 0.3% |
| Q1 2023 | 73 | $477.6M | 14,419,339 | 3 | 31 | 18 | 0.2% |
| Q4 2022 | 71 | $444.4M | 13,601,605 | 7 | 30 | 15 | 1.5% |
| Q3 2022 | 98 | $568.4M | 15,836,818 | 16 | 48 | 22 | 0.2% |
| Q2 2022 | 95 | $624.7M | 15,081,075 | 10 | 33 | 26 | 0.6% |
| Q1 2022 | 110 | $882.5M | 15,201,847 | 16 | 32 | 42 | 0.1% |
| Q4 2021 | 107 | $894.1M | 15,208,060 | 9 | 34 | 31 | 0.1% |
| Q3 2021 | 109 | $925.6M | 15,198,523 | 10 | 37 | 26 | 0.6% |
| Q2 2021 | 110 | $927.4M | 15,203,039 | 22 | 27 | 34 | 1.7% |
| Q1 2021 | 99 | $753.6M | 15,501,524 | 28 | 30 | 23 | 3.0% |
| Q4 2020 | 89 | $648.3M | 16,552,388 | 10 | 25 | 31 | 4.0% |
| Q3 2020 | 97 | $588.6M | 15,949,715 | 8 | 18 | 42 | 11.4% |
| Q2 2020 | 109 | $802.6M | 16,406,987 | 31 | 45 | 20 | 7.3% |
| Q1 2020 | 85 | $792.7M | 17,140,921 | 17 | 18 | 30 | 1.2% |
| Q4 2019 | 80 | $733.5M | 16,377,763 | 14 | 30 | 18 | 3.6% |
| Q3 2019 | 77 | $573.6M | 15,484,938 | 74 | 2 | 1 | 2.3% |
| Q2 2019 | 73 | $632.4M | 13,478,328 | 14 | 21 | 24 | 0.0% |
| Q1 2019 | 73 | $462.9M | 13,190,730 | 14 | 21 | 18 | 0.0% |
| Q4 2018 | 67 | $496.2M | 13,299,039 | 1 | 1 | 2 | 0.0% |