Institutional Holders (2026 Q2)
172 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ATEX. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Owl Creek Asset Management, L.P. | 46.08% | 5,411,776 | $557.1M |
| 2 | Plustick Management LLC | 19.90% | 520,000 | $53.5M |
| 3 | Potomac Capital Management, Inc. | 10.89% | 155,071 | $16.0M |
| 4 | Heard Capital LLC | 7.56% | 1,716,738 | $176.7M |
| 5 | Panoramic Capital, LLC | 6.84% | 154,377 | $15.9M |
| 6 | Marble Bar Asset Management LLP | 4.87% | 68,248 | $7.0M |
| 7 | Beartown Capital Management, LLC | 3.39% | 75,000 | $7.7M |
| 8 | Garnet Equity Capital Holdings, INC. | 3.03% | 156,119 | $16.1M |
| 9 | Potrero Capital Research LLC | 2.66% | 46,525 | $4.8M |
| 10 | Teton Advisors, LLC | 2.56% | 43,000 | $4.4M |
| 11 | QVT Financial LP | 2.32% | 383,941 | $39.5M |
| 12 | Kirr Marbach & Co LLC /In/ | 2.01% | 116,069 | $11.9M |
| 13 | Hanseatic Management Services Inc | 1.39% | 18,418 | $1.9M |
| 14 | EVR Research LP | 1.27% | 25,000 | $2.6M |
| 15 | Jefferson Bridge Capital, LLC | 1.16% | 12,950 | $1.3M |
| 16 | Potomac Capital Management, Inc. | 0.70% | 10,000 | $1.0M |
| 17 | Informed Momentum Co LLC | 0.48% | 52,534 | $5.4M |
| 18 | Gem Investment Advisors, LLC | 0.45% | 7,183 | $739K |
| 19 | Gamco Investors, INC. Et Al | 0.38% | 415,520 | $42.8M |
| 20 | FCG Investment Co | 0.38% | 10,762 | $1.1M |
| 21 | 683 Capital Management, LLC | 0.33% | 66,000 | $6.8M |
| 22 | Granahan Investment Management, LLC | 0.26% | 72,121 | $7.4M |
| 23 | Gwn Securities INC. | 0.23% | 13,425 | $1.4M |
| 24 | Gabelli Funds LLC | 0.18% | 278,500 | $28.7M |
| 25 | EntryPoint Capital, LLC | 0.17% | 6,368 | $252K |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|