Siren LLC’s Mineralys Therapeutics MLYS Stock Holding History

Siren LLC’s Portfolio MLYS Stock Details MLYS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-699,999	Closed	-$25.4M	–	116
2025 Q4	$25.4M	Buy	+699,999	New	+$28.1M	0.76%	35

Other funds holding MLYS

Catalys Pacific Tokyo, Japan $231M AUM 83.19% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Caligan Partners New York $1.5B AUM 518.95% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

LCM

Laurion Capital Management New York $2.29B AUM 75.73% 1-Year Est. Return

Siren LLC's MLYS Position: Q1 2026 in Review

Siren LLC sold out of Mineralys Therapeutics (MLYS) in Q1 2026, closing a stake of 699,999 shares — an estimated $25.4M sold.

Siren LLC first reported a position in MLYS in Q4 2025 and held it in 1 quarter. The position peaked at $25.4M in Q4 2025. 214 funds tracked by Wall St. Rank hold MLYS as of Q1 2026.

Siren LLC reported no remaining Mineralys Therapeutics position as of Q1 2026 after selling out during the quarter.
Siren LLC sold 699,999 Mineralys Therapeutics shares in Q1 2026, an estimated $25.4M.
Siren LLC first reported a position in Mineralys Therapeutics in Q4 2025 and held it in 1 quarter.
Siren LLC's Mineralys Therapeutics position peaked at $25.4M in Q4 2025.
214 funds tracked by Wall St. Rank held Mineralys Therapeutics as of Q1 2026.

Based on Siren LLC's 13F filing for Q1 2026, filed 14 May 2026.