Institutional Holders (2026 Q1)
136 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ATXS. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Chicago Capital Management, LLC | 3.56% | 530,000 | $5.2M |
| 2 | GARDNER LEWIS ASSET MANAGEMENT L P | 2.45% | 739,565 | $9.7M |
| 3 | Birnam Oak Advisors, LP | 2.02% | 689,735 | $9.0M |
| 4 | PERCEPTIVE ADVISORS LLC | 1.51% | 6,485,420 | $84.9M |
| 5 | GLAZER CAPITAL, LLC | 1.30% | 3,776,154 | $49.4M |
| 6 | GABELLI & Co INVESTMENT ADVISERS, INC. | 1.14% | 581,550 | $7.6M |
| 7 | KRYGER CAPITAL Ltd | 1.04% | 1,025,278 | $13.4M |
| 8 | DAFNA Capital Management LLC | 0.93% | 304,775 | $4.0M |
| 9 | SPHERA FUNDS MANAGEMENT LTD. | 0.90% | 355,725 | $4.7M |
| 10 | WATER ISLAND CAPITAL LLC | 0.87% | 615,790 | $8.1M |
| 11 | Yakira Capital Management, Inc. | 0.69% | 156,076 | $2.0M |
| 12 | First Trust Capital Management L.P. | 0.66% | 831,357 | $10.9M |
| 13 | ALPINE ASSOCIATES MANAGEMENT INC. | 0.63% | 728,922 | $9.5M |
| 14 | PRELUDE CAPITAL MANAGEMENT, LLC | 0.51% | 529,021 | $6.9M |
| 15 | Nantahala Capital Management, LLC | 0.46% | 1,069,530 | $14.0M |
| 16 | Magnetar Financial LLC | 0.44% | 3,431,007 | $44.9M |
| 17 | Quarry LP | 0.39% | 188,988 | $2.5M |
| 18 | OXFORD ASSET MANAGEMENT LLP | 0.28% | 52,517 | $687K |
| 19 | Caitong International Asset Management Co., Ltd | 0.24% | 6,737 | $88K |
| 20 | AQR Arbitrage LLC | 0.17% | 627,293 | $8.2M |
| 21 | ADAR1 Capital Management, LLC | 0.16% | 173,557 | $2.3M |
| 22 | ODDO BHF ASSET MANAGEMENT SAS | 0.16% | 317,300 | $4.2M |
| 23 | SOROS FUND MANAGEMENT LLC | 0.13% | 873,400 | $11.4M |
| 24 | Quinn Opportunity Partners LLC | 0.07% | 120,000 | $1.6M |
| 25 | Vestcor Inc | 0.06% | 167,000 | $2.2M |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|