Siren, L.L.C.

13F Portfolio Filings

Most recent 13F
Q2 2026
Also reports for
Based on Q2 2026 13F notices
Location
New York, NY
CIK
0002005245
All SEC filings
View on sec.gov
Holdings Value
Quarter Holdings Value ($000) Top Holdings Form Type Date Filed Filing ID
Q2 2026 117 4,941,404 SRRK, KYMR, ERAS, MANE 13F-HR 8/13/2026 000200524526000008
Q1 2026 100 3,607,379 SRRK, KYMR, ERAS, EWTX 13F-HR 5/14/2026 000200524526000006
Q4 2025 113 3,352,424 SRRK, KYMR, ONC, EWTX 13F-HR 2/13/2026 000200524526000003
Q3 2025 115 2,556,293 SRRK, KYMR, ONC, ARWR 13F-HR 11/13/2025 000200524525000012
Q2 2025 110 1,932,435 SRRK, KYMR, ONC, IRON 13F-HR 8/13/2025 000200536925000014
Q1 2025 116 1,772,780 SRRK, ONC, KYMR, BPMC RESTATEMENT 5/22/2025 000200524525000008
Q4 2024 118 2,263,488 SRRK, ONC, KYMR, APLS 13F-HR 2/14/2025 000200524525000002
Q3 2024 112 2,000,323 KYMR, ONC, SRRK, BCAX 13F-HR 11/13/2024 000200524524000005
Additional filings from Siren, L.L.C. that have since been restated