DaveManuel.com · Institutional Ownership · Who Owns It
ANTERIX INC (ATEX)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
175
Reporting holders
$2.0B
Reported value
98.0%
Of shares outstanding
3.0%
Calls
0.9%
Puts
+39
Holder change
Institutions report 19,108,465 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. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Owl Creek Asset Management, L.P. | $557.1M | 5,411,776 | 46.08% | 28q | HELD |
| T. Rowe Price Investment Management, Inc. | $241.7M | 2,348,019 | 0.16% | new | NEW |
| 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 |
| PRICE T ROWE ASSOCIATES INC /MD/ | $77.3M | 750,451 | 0.01% | 2q | +9333.7%+$76.4M |
| 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 incl. $29.0M options CALL+PUT | 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 incl. $1.0M options PUT | 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 CALL+PUT | 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 |
| 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 incl. $11.0M options CALL+PUT | 9,014 | 0.00% | 16q | -94.4%-$201.6M |
| JANE STREET GROUP, LLC | $10.0M incl. $8.2M options CALL+PUT | 17,506 | 0.00% | 16q | -95.8%-$231.3M |
| D. E. Shaw & Co., Inc. | $9.9M incl. $339.7K options CALL | 92,990 | 0.00% | 28q | +1532.5%+$9.3M |
| Caption Management, LLC | $8.5M incl. $6.7M options CALL+PUT | 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 incl. $5.2M options CALL+PUT | 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 |
| HRT FINANCIAL LP | $3.2M | 30,673 | 0.01% | 4q | -82.5%-$14.8M |
| 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 |
| HARBOR CAPITAL ADVISORS, INC. | $2.1M | 20,805 | 0.15% | new | NEW |
| 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 | +148.1%+$900.2K |
| 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 CALL+PUT | 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 incl. $195.6K options CALL+PUT | 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 |
| Covestor Ltd | $683.0K | 6,637 | 0.39% | 6q | -22.0%-$192.4K |
| 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 | 0.13% | 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 |
| 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 |
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 |
|---|---|---|---|
| 2026-10-27 | 13G/A | BlackRock, Inc. | 4.7% |
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-08-06 | 2026-08-04 | Directors or officers departed or appointed | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-15 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sold | 122,852 | $10.0M ×7 |
| 2026-06-15 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sold | 91,437 | $7.5M ×4 |
| 2026-08-14 | Heard William | Director | Sold | 46,400 | $4.2M |
| 2026-08-14 | Lang Scott A. | President and CEO | Sold | 35,057 | $3.2M ×4 |
| 2026-08-25 | Guttman-McCabe Christopher | Chief Reg & Comm Officer | Sold | 23,439 | $2.2M ×4 |
| 2026-06-15 | Ashe Gena L | Chief Legal Officer & Corp Sec | Sold | 17,711 | $1.4M ×2 |
| 2026-09-21 | Lang Scott A. | President and CEO | Sold | 15,000 | $1.2M |
| 2026-09-21 | Lang Scott A. | President and CEO | Sold | 15,000 | $1.2M |
| 2026-08-24 | Kuhn Thomas R. | Director, Other | Sold | 10,000 | $888.5K ×4 |
| 2026-09-10 | Martin Heather | Chief Marketing Officer | Sold | 8,064 | $679.0K |
| 2026-06-16 | YAZDI MAHVASH | Director | Sold | 7,000 | $560.0K |
| 2026-09-03 | DANIELS LESLIE B | Director | Sold | 6,000 | $522.9K |
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 |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 29 | $14.7M | 187,432 | 6 | 8 | 3 | 0.0% |
| Q2 2026 | 175 | $2.0B | 19,108,465 | 57 | 44 | 48 | 3.9% |
| Q1 2026 | 136 | $692.7M | 16,933,104 | 40 | 46 | 27 | 6.7% |
| Q4 2025 | 117 | $357.5M | 16,180,545 | 23 | 35 | 40 | 1.2% |
| Q3 2025 | 112 | $381.8M | 17,614,209 | 26 | 28 | 38 | 0.9% |
| Q2 2025 | 115 | $437.3M | 16,819,781 | 15 | 47 | 31 | 1.3% |
| Q1 2025 | 130 | $606.0M | 16,354,227 | 28 | 35 | 47 | 1.2% |
| Q4 2024 | 116 | $492.8M | 15,992,167 | 15 | 32 | 42 | 0.5% |
| Q3 2024 | 128 | $596.3M | 15,798,462 | 26 | 43 | 35 | 0.2% |
| Q2 2024 | 117 | $599.2M | 14,996,831 | 28 | 35 | 30 | 0.9% |
| Q1 2024 | 100 | $517.5M | 15,347,419 | 17 | 22 | 36 | 0.3% |
| Q4 2023 | 92 | $504.7M | 15,087,562 | 6 | 34 | 30 | 0.4% |
| Q3 2023 | 97 | $479.6M | 15,001,521 | 14 | 28 | 41 | 1.5% |
| Q2 2023 | 94 | $492.6M | 15,460,859 | 16 | 39 | 19 | 0.3% |
| Q1 2023 | 87 | $523.6M | 15,719,239 | 3 | 37 | 23 | 0.5% |
| Q4 2022 | 92 | $511.4M | 15,609,189 | 8 | 36 | 28 | 1.5% |
| Q3 2022 | 94 | $606.9M | 16,913,406 | 14 | 46 | 22 | 0.2% |
| Q2 2022 | 93 | $656.7M | 15,858,804 | 10 | 31 | 27 | 0.6% |
| Q1 2022 | 107 | $51.1B | 882,859,239 | 16 | 31 | 41 | 0.0% |
| Q4 2021 | 105 | $36.4B | 619,745,707 | 9 | 34 | 30 | 0.0% |
| Q3 2021 | 107 | $1.1B | 18,181,786 | 10 | 36 | 26 | 0.5% |
| Q2 2021 | 108 | $1.1B | 18,190,880 | 21 | 26 | 34 | 1.4% |
| Q1 2021 | 97 | $936.2M | 19,372,543 | 28 | 29 | 23 | 2.4% |
| Q4 2020 | 88 | $806.3M | 20,753,078 | 10 | 25 | 31 | 3.2% |
| Q3 2020 | 96 | $726.0M | 20,150,405 | 8 | 18 | 42 | 9.2% |
| Q2 2020 | 108 | $993.0M | 20,607,677 | 31 | 44 | 20 | 5.9% |
| Q1 2020 | 85 | $1.2B | 25,051,003 | 17 | 18 | 30 | 0.9% |
| Q4 2019 | 79 | $874.0M | 19,630,022 | 14 | 30 | 18 | 3.0% |
| Q3 2019 | 76 | $691.4M | 18,737,197 | 73 | 2 | 1 | 1.9% |
| Q2 2019 | 71 | $785.2M | 16,729,458 | 14 | 21 | 23 | 0.0% |
| Q1 2019 | 71 | $577.2M | 16,441,009 | 14 | 20 | 18 | 0.0% |
| Q4 2018 | 65 | $617.8M | 16,550,922 | 1 | 1 | 2 | 0.0% |