Institutional Holders (2026 Q1)
38 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ATIIW. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Harraden Circle Investments, LLC | 0.16% | 1,609,715 | $821K |
| 2 | Mint Tower Capital Management B.V. | 0.14% | 150,000 | $2K |
| 3 | GRITSTONE ASSET MANAGEMENT LLC | 0.03% | 49,540 | $25K |
| 4 | RLH Capital LLC | 0.01% | 47,382 | $24K |
| 5 | CSS LLC/IL | 0.01% | 487,619 | $249K |
| 6 | PERISCOPE CAPITAL INC. | 0.01% | 198,600 | $101K |
| 7 | Lineage Point Capital LP | 0.01% | 87,687 | $45K |
| 8 | Shaolin Capital Management LLC | 0.01% | 500,000 | $255K |
| 9 | K2 PRINCIPAL FUND, L.P. | 0.01% | 239,895 | $122K |
| 10 | Governors Lane LP | 0.01% | 197,403 | $101K |
| 11 | TENOR CAPITAL MANAGEMENT Co., L.P. | 0.01% | 750,000 | $382K |
| 12 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 0.01% | 224,942 | $115K |
| 13 | DLD Asset Management, LP | 0.00% | 100,000 | $51K |
| 14 | Westchester Capital Management, LLC | 0.00% | 199,999 | $102K |
| 15 | AQR Arbitrage LLC | 0.00% | 479,208 | $244K |
| 16 | Magnetar Financial LLC | 0.00% | 650,000 | $332K |
| 17 | MMCAP International Inc. SPC | 0.00% | 62,500 | $32K |
| 18 | MOORE CAPITAL MANAGEMENT, LP | 0.00% | 225,000 | $115K |
| 19 | Quarry LP | 0.00% | 23,691 | $12K |
| 20 | Alberta Investment Management Corp | 0.00% | 375,000 | $191K |
| 21 | ARISTEIA CAPITAL, L.L.C. | 0.00% | 125,000 | $55K |
| 22 | WHITEBOX ADVISORS LLC | 0.00% | 125,000 | $64K |
| 23 | READYSTATE ASSET MANAGEMENT LP | 0.00% | 25,000 | $13K |
| 24 | LMR Partners LLP | 0.00% | 425,000 | $217K |
| 25 | PICTON MAHONEY ASSET MANAGEMENT | 0.00% | 125,000 | $64K |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|