Who owns Anterix Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATEX from SEC Form 13F filings across 171 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 171 institutions disclosed 19.1M shares of Anterix Inc. worth $1.97B — about 100.1% of shares outstanding; the largest disclosed holder is Owl Creek Asset Management, L.P.. Source: SEC Form 13F filings, parsed by EvidInvest.
171
13F holders
$1.97B
value, 2026 filers
100.1%
of shares outstanding (19.1M sh)
58
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATEX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Owl Creek Asset Management, L.P. | 5.4M | $557.1M | 46.1% | 28.4% | 0.0% |
| 2 | T. Rowe Price Investment Management, Inc.NEW | 2.3M | $241.7M | 0.2% | 12.3% | new |
| 3 | Heard Capital LLC | 1.7M | $176.7M | 7.6% | 9% | 0.0% |
| 4 | BlackRock, Inc. | 1.1M | $110.7M | 0.0% | 5.6% | +6.7% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | 750,451 | $77.3M | 0.0% | 3.9% | +9333.7% |
| 6 | Jupiter Topco LLCNEW | 662,415 | $68.2M | 0.0% | 3.5% | new |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 553,002 | $56.9M | 0.0% | 2.9% | -3.6% |
| 8 | PLUSTICK MANAGEMENT LLC | 520,000 | $53.5M | 19.9% | 2.7% | +4.1% |
| 9 | STATE STREET CORP | 495,950 | $51.1M | 0.0% | 2.6% | +27.8% |
| 10 | GAMCO INVESTORS, INC. ET AL | 415,520 | $42.8M | 0.4% | 2.2% | -2.4% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 388,076 | $40.0M | 0.0% | 2% | +3.7% |
| 12 | QVT Financial LP | 383,941 | $39.5M | 2.3% | 2% | -23.8% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 370,964 | $38.2M | 0.0% | 1.9% | -12.7% |
| 14 | FMR LLC | 370,400 | $38.1M | 0.0% | 1.9% | +173.8% |
| 15 | GABELLI FUNDS LLC | 278,500 | $28.7M | 0.2% | 1.5% | +4.8% |
| 16 | Invesco Ltd.NEW | 200,975 | $20.7M | 0.0% | 1.1% | new |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | 158,469 | $16.3M | 0.0% | 0.8% | -3.7% |
| 18 | GARNET EQUITY CAPITAL HOLDINGS, INC. | 156,119 | $16.1M | 3.0% | 0.8% | -54.5% |
| 19 | Potomac Capital Management, Inc. | 155,071 | $16.0M | 10.9% | 0.8% | -10.8% |
| 20 | Panoramic Capital, LLC | 154,377 | $15.9M | 6.8% | 0.8% | +14.4% |
| 21 | GOLDMAN SACHS GROUP INC | 139,334 | $14.3M | 0.0% | 0.7% | -13.9% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 139,278 | $14.3M | 0.0% | 0.7% | -1.5% |
| 23 | BANK OF AMERICA CORP /DE/ | 134,686 | $13.9M | 0.0% | 0.7% | -19.7% |
| 24 | NORTHERN TRUST CORP | 123,231 | $12.7M | 0.0% | 0.6% | +4.8% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 120,999 | $12.5M | 0.0% | 0.6% | +1.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.