Mineralys Therapeutics, Inc. (MLYS) has 12 known insider and institutional holders on record. The largest holder is Slingsby Brian Taylor with 8,903,838 shares. Other notable holders include RA CAPITAL MANAGEMENT, L.P. and Samsara BioCapital GP, LLC.
Over the last 12 months, insiders have made 40 transactions in MLYS stock — 13 buys (valued at $19.01M) and 12 sells (valued at $2.13M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
MLYS Insider Ownership
Top Holder
Slingsby Brian Taylor
8,903,838 shares
Buys (12 mo)
13
$19.01M value
Sells (12 mo)
12
$2.13M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Slingsby Brian Taylor |
10 Percent Owner |
8,903,838 |
2025-04-25 |
|
| 2 |
Ra Capital Management, L.p. |
Director |
5,767,221 |
2026-03-31 |
|
| 3 |
Samsara Biocapital Gp, Llc |
10 Percent Owner |
5,674,916 |
2025-03-17 |
|
| 4 |
Congleton Jon |
Chief Executive Officer |
705,051 |
2026-04-02 |
|
| 5 |
Levy Adam Scott |
CFO and Secretary |
48,538 |
2026-02-20 |
|
| 6 |
Litzka Olivier |
Director |
22,000 |
2024-05-23 |
|
| 7 |
Gold Alexander M |
Director |
6,200 |
2026-02-20 |
|
| 8 |
Akkaraju Srinivas |
10 Percent Owner |
6,200 |
2026-02-20 |
|
| 9 |
Dirocco Derek |
Director |
6,200 |
2026-02-20 |
|
| 10 |
Sblendorio Glenn |
Director |
6,200 |
2026-02-20 |
|
| 11 |
Karydas Daphne |
Director |
6,200 |
2026-04-02 |
|
| 12 |
Rodman David Malcom |
Chief Medical Officer |
5,000 |
2026-03-17 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-31 |
Karydas Daphne |
Director |
Informative Sell |
3,000 |
$25.00 |
$75K |
| 2026-03-31 |
Congleton Jon |
Chief Executive Officer |
Informative Sell |
453 |
$27.05 |
$12.25K |
| 2026-03-30 |
Ra Capital Management, L.p. |
Director |
Informative Buy |
58,300 |
$24.16 |
$1.41M |
| 2026-03-27 |
Ra Capital Management, L.p. |
Director |
Informative Buy |
310,700 |
$23.67 |
$7.35M |
| 2026-03-17 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
417 |
$15.44 |
$6.44K |
| 2026-03-13 |
Rodman David Malcom |
Chief Medical Officer |
Informative Sell |
253 |
$27.82 |
$7.04K |
| 2026-03-12 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
6,348 |
$1.08 |
$6.86K |
| 2026-03-09 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
2,171 |
$16.00 |
$34.74K |
| 2026-03-04 |
Warren Eric |
Chief Commercial Officer |
Unknown |
357,000 |
$13.24 |
$4.73M |
| 2026-02-19 |
Gold Alexander M |
Director |
RSU Award |
6,200 |
- |
- |
| 2026-02-19 |
Slingsby Brian Taylor |
10 Percent Owner |
Other (Sell) |
6,200 |
- |
- |
| 2026-02-19 |
Karydas Daphne |
Director |
RSU Award |
6,200 |
- |
- |
| 2026-02-19 |
Dirocco Derek |
Director |
RSU Award |
6,200 |
- |
- |
| 2026-02-19 |
Levy Adam Scott |
CFO and Secretary |
RSU Award |
39,900 |
- |
- |
| 2026-02-19 |
Rodman David Malcom |
Chief Medical Officer |
RSU Award |
51,300 |
$28.06 |
$1.44M |
| 2026-02-19 |
Congleton Jon |
Chief Executive Officer |
RSU Award |
187,900 |
$28.06 |
$5.27M |
| 2026-02-19 |
Ra Capital Management, L.p. |
Director |
RSU Award |
6,200 |
- |
- |
| 2026-02-19 |
Sblendorio Glenn |
Director |
RSU Award |
6,200 |
- |
- |
| 2026-02-19 |
Akkaraju Srinivas |
10 Percent Owner |
RSU Award |
6,200 |
- |
- |
| 2026-02-17 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
417 |
$15.44 |
$6.44K |
| 2026-02-13 |
Rodman David Malcom |
Chief Medical Officer |
Informative Sell |
6,348 |
$27.58 |
$175.1K |
| 2026-02-12 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
6,349 |
$1.08 |
$6.86K |
| 2026-02-09 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
2,171 |
$16.00 |
$34.74K |
| 2026-01-20 |
Rodman David Malcom |
Chief Medical Officer |
Option Exercise (Sell) |
416 |
$15.44 |
$6.42K |
| 2026-01-14 |
Rodman David Malcom |
Chief Medical Officer |
Informative Sell |
11,367 |
$32.61 |
$370.64K |
