Siren, L.L.C. (CIK 0002005245)

Latest company ownership

Shares held
9,250,005
Last filed at
Dec 12, 2024
Confidence Score
49.9
2025Q4
Confidence Score History
2024Q4 2025Q4
Shares held
6,317,565
Last filed at
Aug 9, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 10, 2024 Dec 12, 2024 Scholar Rock Holding Corp 10% Owner Sell 15.0 -1,600,000 -14.75% $66.6M
Nov 25, 2024 Nov 27, 2024 Scholar Rock Holding Corp 10% Owner Sell 15.0 -409,433 -3.64% $15.8M
Aug 7, 2024 Aug 9, 2024 CRESCENT BIOPHARMA, INC. 10% Owner Sell 22.5 -322,361 -4.85% $61.2K
Aug 5, 2024 Aug 7, 2024 CRESCENT BIOPHARMA, INC. 10% Owner Sell 26.3 -220,255 -3.21% $41.2K
Aug 1, 2024 Aug 5, 2024 CRESCENT BIOPHARMA, INC. 10% Owner Sell 22.5 -349,764 -4.85% $71.1K
Jul 26, 2024 Jul 30, 2024 CRESCENT BIOPHARMA, INC. 10% Owner Sell 20.0 -1,379,119 -16.06% $315.3K