Institutional Holders (2026 Q2)
221 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in MLYS. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Catalys Pacific, LLC | 92.94% | 7,903,838 | $213.2M |
| 2 | Andera Partners | 20.80% | 1,591,917 | $42.9M |
| 3 | Samsara BioCapital, LLC | 13.01% | 5,871,018 | $158.4M |
| 4 | Sphera Funds Management LTD. | 5.17% | 1,469,971 | $39.7M |
| 5 | Troluce Capital Advisors LLC | 4.80% | 1,728,753 | $46.6M |
| 6 | Sr One Capital Management, LP | 4.06% | 1,563,966 | $42.2M |
| 7 | Davern Capital Partners, LP | 3.95% | 858,753 | $23.2M |
| 8 | Catalio Capital Management, LP | 3.29% | 648,722 | $17.5M |
| 9 | 22nw, LP | 2.93% | 113,840 | $3.1M |
| 10 | Stempoint Capital LP | 2.80% | 602,686 | $16.3M |
| 11 | Prosight Management, LP | 2.09% | 449,795 | $12.1M |
| 12 | Ishara Investments LP | 2.03% | 102,500 | $2.8M |
| 13 | Ra Capital Management, L.P. | 1.80% | 7,692,750 | $207.6M |
| 14 | Laurion Capital Management LP | 1.73% | 2,506,152 | $67.6M |
| 15 | KVP Capital Advisors, LP | 1.67% | 84,168 | $2.3M |
| 16 | Lion Point Capital, LP | 1.36% | 10,500 | $283K |
| 17 | Logos Global Management LP | 1.22% | 1,050,000 | $28.3M |
| 18 | Pale Fire Capital SE | 1.17% | 614,284 | $16.6M |
| 19 | Deerfield Management Company, L.P. | 1.11% | 3,958,000 | $106.8M |
| 20 | Rhenman & Partners Asset Management AB | 1.06% | 416,371 | $11.2M |
| 21 | Orbimed Advisors LLC | 1.05% | 2,110,300 | $56.9M |
| 22 | Parkman Healthcare Partners LLC | 1.05% | 380,354 | $10.3M |
| 23 | Affinity Asset Advisors, LLC | 0.91% | 750,000 | $20.2M |
| 24 | Nantahala Capital Management, LLC | 0.74% | 820,481 | $22.1M |
| 25 | Artia Global Partners LP | 0.69% | 137,800 | $3.7M |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|