Siren LLC’s Compass Pathways CMPS Stock Holding History

Siren LLC’s Portfolio CMPS Stock Details CMPS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-1,000,000	Closed	-$6.9M	–	107
2025 Q4	$6.9M	Buy	+1,000,000	New	+$6.1M	0.21%	67

Other funds holding CMPS

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return

BIT Capital Berlin, Germany $3.38B AUM 214.12% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

GMT Capital Atlanta, Georgia $1.92B AUM 70.51% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

DCM

DAFNA Capital Management Los Angeles, California $524M AUM 164.42% 1-Year Est. Return

Siren LLC's CMPS Position: Q1 2026 in Review

Siren LLC sold out of Compass Pathways (CMPS) in Q1 2026, closing a stake of 1,000,000 shares — an estimated $6.9M sold.

Siren LLC first reported a position in CMPS in Q4 2025 and held it in 1 quarter. The position peaked at $6.9M in Q4 2025. 194 funds tracked by Wall St. Rank hold CMPS as of Q1 2026.

Siren LLC reported no remaining Compass Pathways position as of Q1 2026 after selling out during the quarter.
Siren LLC sold 1,000,000 Compass Pathways shares in Q1 2026, an estimated $6.9M.
Siren LLC first reported a position in Compass Pathways in Q4 2025 and held it in 1 quarter.
Siren LLC's Compass Pathways position peaked at $6.9M in Q4 2025.
194 funds tracked by Wall St. Rank held Compass Pathways as of Q1 2026.

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