Mineralys Therapeutics
MLYS · NASDAQ
$21.58+$0.66 (+3.15%)TodayMarket closed ·
Prev close $20.92
Who owns MLYS
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 51.8% of MLYS’s shares.
- Catalys Pacific, LLC9.0%
- RA Capital Management, LP8.7%
- Samsara BioCapital, LLC6.7%
- BlackRock Institutional Trust Company, N.A.5.6%
- Next 6 largest institutions21.9%
- All other shareholders48.2%
| Holder | Shares | % of shares |
|---|---|---|
| Catalys Pacific, LLC | 7.90M | 8.97% |
| RA Capital Management, LP | 7.69M | 8.73% |
| Samsara BioCapital, LLC | 5.87M | 6.66% |
| BlackRock Institutional Trust Company, N.A. | 4.90M | 5.56% |
| State Street Investment Management (US) | 4.14M | 4.70% |
| Deerfield Management Company, L.P. | 3.96M | 4.49% |
| Fidelity Management & Research Company LLC | 3.78M | 4.29% |
| Vanguard Capital Management, LLC | 2.76M | 3.13% |
| Laurion Capital Management LP | 2.51M | 2.84% |
| T. Rowe Price Associates, Inc. | 2.18M | 2.47% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| State Street SPDR S&P Biotech ETF | 2.97M | 3.37% |
| Vanguard Total Stock Market Index Fund | 1.97M | 2.23% |
| American Funds SMALLCAP World Fund | 1.94M | 2.21% |
| iShares Russell 2000 ETF | 1.49M | 1.69% |
| Polar Capital Biotechnology Fund | 1.35M | 1.53% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $7.46M (18 trades) of MLYS on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Congleton Jon | Sale | 75.00K | $1.91M |
| Slingsby Brian Taylor | Sale | 104.32K | $3.01M |
| Warren Eric | Option exercise | 7.44K | — |
| Warren Eric | Sale | 7.44K | $209.14K |
| Warren Eric | Option exercise | 7.44K | $98.48K |
| Karydas Daphne | Option exercise | 3.00K | — |
| Karydas Daphne | Sale | 3.00K | $85.74K |
| Karydas Daphne | Option exercise | 3.00K | $36.06K |
| Warren Eric | Option exercise | 7.44K | — |
| Warren Eric | Sale | 7.44K | $193.19K |
Short interest
Settled Sep 30, 2026
- Shares short
- 7.81M
- Days to cover
- 5.16
- % of shares outstanding
- 8.86%
- Average daily volume
- 1.51M
- Change since last report
- −15.0%
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