Institutional Holders (2026 Q2)
325 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in MIRM. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Frazier Life Sciences Management, L.P. | 19.58% | 7,679,684 | $899.1M |
| 2 | Boone Capital Management LLC | 11.38% | 415,641 | $48.7M |
| 3 | Novo Holdings A/S | 7.65% | 1,125,000 | $131.7M |
| 4 | Tang Capital Management LLC | 6.57% | 1,236,027 | $144.7M |
| 5 | Highlander Partners, L.P. | 4.83% | 122,980 | $14.4M |
| 6 | Patient Square Capital LP | 4.72% | 260,500 | $30.5M |
| 7 | Rock Springs Capital Management LP | 4.56% | 798,145 | $93.4M |
| 8 | Trails Edge Capital Partners, LP | 4.15% | 223,312 | $26.1M |
| 9 | Octagon Capital Advisors LP | 3.57% | 338,900 | $39.7M |
| 10 | Atle Fund Management AB | 3.17% | 100,807 | $11.8M |
| 11 | Bvf Inc/Il | 3.16% | 1,056,027 | $123.6M |
| 12 | TCG Crossover Management, LLC | 2.99% | 1,062,049 | $124.3M |
| 13 | First Turn Management, LLC | 2.73% | 218,051 | $25.5M |
| 14 | NAN FUNG TRINITY (HK) Ltd | 2.69% | 232,679 | $27.2M |
| 15 | Next Century Growth Investors LLC | 2.61% | 420,213 | $49.2M |
| 16 | Penn Capital Management Company, LLC | 2.22% | 298,914 | $35.1M |
| 17 | Seven Fleet Capital Management LP | 2.13% | 110,393 | $12.9M |
| 18 | Eventide Asset Management, LLC | 1.95% | 1,248,389 | $146.2M |
| 19 | Lisanti Capital Growth, LLC | 1.63% | 63,295 | $7.4M |
| 20 | Essex Investment Management Co LLC | 1.62% | 105,669 | $12.4M |
| 21 | Rhenman & Partners Asset Management AB | 1.54% | 139,205 | $16.3M |
| 22 | Resolute Capital Asset Partners LLC | 1.50% | 30,000 | $3.5M |
| 23 | Emerald Advisers, LLC | 1.29% | 468,295 | $54.8M |
| 24 | Emerald Mutual Fund Advisers Trust | 1.19% | 289,372 | $33.9M |
| 25 | Nicholas Investment Partners, LP | 1.14% | 172,695 | $20.2M |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|