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Compass Pathways shares owned by Siren

Quarter-by-quarter ownership of Compass Pathways (CMPS) shares owned by Siren from 13F filings

Historical chart of Siren investment in Compass Pathways

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All positions including Compass Pathways held by Siren consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Compass Pathways by Siren

Quarter filed	Position value	Share count	Share price at filing
2025-12-31	$6.9M	1.0M	6.90

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Centessa Pharmaceuticals Sponsored Ads (CNTA)

Arrowhead Pharmaceuticals (ARWR)

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View all positions for Siren

Top funds holding Compass Pathways

Rtw Investments

Deep Track Capital

GMT Capital Corp

Millennium Management

ARK Investment Management

Partner Fund Management

Susquehanna International

Leucadia National Corporation

Eagle Health Investments

Aisling Capital Management

Ally Bridge Group

Two Sigma Investments

View all funds holding Compass Pathways

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