Institutional Holders (2026 Q1)
53 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in ATNM. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Gagnon Securities LLC | 0.05% | 201,300 | $200K |
| 2 | Gen-Wealth Partners Inc | 0.03% | 107,111 | $107K |
| 3 | Gerald Baker Financial Group LLC | 0.01% | 22,691 | $29K |
| 4 | AM Investment Strategies LLC | 0.01% | 29,356 | $29K |
| 5 | NINE MASTS CAPITAL Ltd | 0.01% | 35,227 | $35K |
| 6 | Intrepid Financial Planning Group LLC | 0.00% | 10,500 | $10K |
| 7 | Two Sigma Securities, LLC | 0.00% | 35,887 | $36K |
| 8 | Mayport, LLC | 0.00% | 22,000 | $22K |
| 9 | North Star Asset Management Inc | 0.00% | 20,000 | $20K |
| 10 | Bridgeway Capital Management, LLC | 0.00% | 40,000 | $40K |
| 11 | Renaissance Technologies LLC | 0.00% | 471,600 | $469K |
| 12 | XTX Topco Ltd | 0.00% | 30,210 | $30K |
| 13 | Two Sigma Advisers, LP | 0.00% | 196,076 | $267K |
| 14 | Level Four Advisory Services, LLC | 0.00% | 10,000 | $10K |
| 15 | Two Sigma Investments, LP | 0.00% | 337,168 | $336K |
| 16 | Callan Family Office, LLC | 0.00% | 11,944 | $12K |
| 17 | Savvy Advisors, Inc. | 0.00% | 10,000 | $10K |
| 18 | Millennium Management LLC | 0.00% | 564,600 | $562K |
| 19 | Vontobel Holding Ltd. | 0.00% | 30,000 | $30K |
| 20 | Investors Research Corp | 0.00% | 300 | — |
| 21 | Vanguard Fiduciary Trust Co | 0.00% | 160,265 | $159K |
| 22 | Vanguard Capital Management LLC | 0.00% | 1,255,516 | $1.2M |
| 23 | Osaic Holdings, INC. | 0.00% | 19,865 | $20K |
| 24 | Qube Research & Technologies Ltd | 0.00% | 18,048 | $18K |
| 25 | Advisory Services Network, LLC | 0.00% | 1,460 | $1K |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|