MLYS Institutional Ownership
Who owns Mineralys Therapeutics, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 226 funds reported holding MLYS at Jun 30, 2026, together owning 113.7% of the company.
- ▲122 buying vs 88 selling
- ▲Held by funds +10.7 pts
- ▲Funds holding +10
- ▼Superinvestors: 1 added, 3 cut
- ▲Put/call 1.03 to 0.67
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 226 | 216 | +4.6% |
| In funds' top 10 | 9 | 10 | −10.0% |
| 13F shares | 100M | 91.1M | +10.4% |
| Held by funds | 113.7% | 103.0% | +10.7 pts |
| New positions | 33 | 26 | +26.9% |
| Increased | 89 | 97 | −8.2% |
| Reduced | 65 | 51 | +27.5% |
| Sold out | 23 | 39 | −41.0% |
| Calls (shares) | 1.3M | 2.7M | −52.6% |
| Puts (shares) | 852K | 2.8M | −69.7% |
| Put/call ratio | 0.67 | 1.03 | −35.0% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in MLYS
All superinvestors →
Who owns MLYS
share of fund held shares- Index and passive funds18.2%
- Active managers and hedge funds76.0%
- Banks and brokers5.4%
- Pensions, insurers and other0.3%
The top 10 holders own 47.3% of all MLYS shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
39 funds changed their position- TimesSquare Capital Management, LLCTrimmed−236K sh
- CenterBook Partners LPTrimmed−236K sh
- Catalys Pacific, LLCTrimmed−104K sh
- DekaBank Deutsche GirozentraleNew+30K sh
- Creative PlanningAdded+29K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Catalys Pacific, LLC | 8.94% | 7.9M | $213M | 0 |
| 2 | RA Capital Management, L.P. | 8.70% | 7.7M | $208M | 0 |
| 3 | BlackRock, Inc. | 6.66% | 5.9M | $159M | +1.4M |
| 4 | Samsara Biocapital, LLC | 6.64% | 5.9M | $158M | 0 |
| 5 | Fmr LLC | 5.10% | 4.5M | $122M | −349K |
| 6 | State Street Corp | 4.68% | 4.1M | $112M | +1.2M |
| 7 | Deerfield Management Company, L.P. | 4.48% | 4M | $107M | +4M |
| 8 | Vanguard Capital Management LLC | 3.12% | 2.8M | $74.4M | +302K |
| 9 | Laurion Capital Management LP | 2.83% | 2.5M | $67.6M | +274K |
| 10 | Price T Rowe Associates Inc /md/ | 2.56% | 2.3M | $61M | +919K |
- Deerfield Management Company, L.P.+4M sh+$107M
- Capital World Investors+1.6M sh+$43.2M
- BlackRock, Inc.+1.4M sh+$37.9M
- State Street Corp+1.2M sh+$32.5M
- Ghisallo Capital Management LLC+1.1M sh+$30.4M
- Troluce Capital Advisors LLC+1.1M sh+$29M
- Logos Global Management LP+1.1M sh+$28.3M
- Invesco Ltd.+1M sh+$28.3M
- Caligan Partners LP−2.8M sh−$75.1M
- Wellington Management Group LLP−2.6M sh−$68.9M
- Point72 Asset Management, L.P.−1.9M sh−$51.8M
- Montanova Capital, LLC−1.4M sh−$36.8M
- Jennison Associates LLC−883K sh−$23.8M
- Boothbay Fund Management, LLC−854K sh−$23M
- Qube Research & Technologies Ltd−665K sh−$17.9M
- D. E. Shaw & Co., Inc.−534K sh−$14.4M
MLYS institutional ownership FAQ
Who owns the most MLYS stock?
In Q2 2026 13F filings the largest holder of MLYS was Catalys Pacific, LLC, followed by RA Capital Management, L.P. and BlackRock, Inc.. Index fund managers are usually the biggest holders of large companies.
What percentage of MLYS is owned by institutions?
Funds that file 13F reports held 113.7% of MLYS's shares at Jun 30, 2026, compared with 103.0% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying MLYS?
In Q2 2026, 122 funds bought MLYS (33 of them new positions) and 88 sold (23 sold out completely). Among well known investors, 1 added and 3 cut. Our fund sentiment for MLYS is bullish.
What is MLYS's institutional put/call ratio?
Funds reported $23M of MLYS puts against $34.3M of calls, a put/call ratio of 0.67 (1.03 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this MLYS ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.