Mineralys Therapeutics, Inc. (MLYS) Insider Trading
Over the last 3 months, MLYS insiders made 2 open-market buys and 19 sales, a net purchase of $4.4M (SEC Form 4). Over the last 6 months, 190 institutions increased and 120 reduced their position (13F).
Insider Activity
Sentiment
64/100
Buys (3m)
2
Sells (3m)
19
Net (3m)
$4.4M
Insiders buying
Insider trades by month Buys Sells
Nov
Jan
Feb
Mar
Apr
May
Context3-month price -12.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 19, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 417 | $15.44 |
| May 19, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 417 | $27.55 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 2,171 | $16.00 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 6,348 | $29.36 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 2,171 | $29.71 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 3,541 | $10.20 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 6,348 | $1.08 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 14,056 | $28.58 |
| May 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 4,166 | $14.25 |
| Apr 21, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 416 | $15.44 |
| Apr 21, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 416 | $31.33 |
| Apr 15, 2026 | Congleton Jondirector, officer: Chief Executive Officer | Sell | 15,730 | $26.83 |
| Apr 15, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 6,349 | $1.08 |
| Apr 15, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 3,542 | $10.20 |
| Apr 15, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 4,167 | $14.25 |
| Apr 15, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 14,058 | $26.54 |
| Apr 15, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 6,348 | $27.66 |
| Apr 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 2,170 | $27.38 |
| Apr 13, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 2,170 | $16.00 |
| Apr 2, 2026 | Congleton Jondirector, officer: Chief Executive Officer | Sell | 453 | $27.05 |
| Apr 2, 2026 | Karydas Daphnedirector | Sell | 3,000 | $25.00 |
| Apr 2, 2026 | Karydas Daphnedirector | Option | 3,000 | $12.02 |
| Apr 2, 2026 | Congleton Jondirector, officer: Chief Executive Officer | Sell | 19,364 | $25.50 |
| Apr 2, 2026 | Congleton Jondirector, officer: Chief Executive Officer | Sell | 55,183 | $26.54 |
| Mar 31, 2026 | RA CAPITAL MANAGEMENT, L.P.director | Buy | 310,700 | $23.67 |
| Mar 31, 2026 | RA CAPITAL MANAGEMENT, L.P.director | Buy | 58,300 | $24.16 |
| Mar 17, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 417 | $15.44 |
| Mar 17, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 417 | $25.65 |
| Mar 16, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Option | 4,167 | $14.25 |
| Mar 16, 2026 | Rodman David Malcomofficer: Chief Medical Officer | Sell | 3,079 | $27.37 |
Source: MLYS SEC Form 4 filings, latest May 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MLYS positions over the last 6 months (SEC Form 13F).
Increased
190
New positions
86
Reduced
120
Sold out
61
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| CATALYS PACIFIC, LLC | Unchanged | 7.9M | May 14, 2026 |
| CATALYS PACIFIC, LLC | Reduced | 7.9M | Feb 10, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | Increased | 7.7M | May 15, 2026 |
| RA CAPITAL MANAGEMENT, L.P. | Unchanged | 7.3M | Feb 17, 2026 |
| SAMSARA BIOCAPITAL, LLC | Reduced | 5.9M | Feb 17, 2026 |
| SAMSARA BIOCAPITAL, LLC | Unchanged | 5.9M | May 15, 2026 |
| FMR LLC | Increased | 5.1M | Feb 17, 2026 |
| FMR LLC | Reduced | 4.9M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 4.5M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 4.3M | Feb 12, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 3.4M | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 3.4M | Jan 29, 2026 |
| STATE STREET CORP | Increased | 3.2M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 2.9M | May 15, 2026 |
| CALIGAN PARTNERS LP | Unchanged | 2.8M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.