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Siren, L.L.C. Historic Quarter Change: Foreign ADRs, Sold Out

Siren, L.L.C. historic quarter change: Foreign ADRs, Sold out

In depositary receipts for foreign shares (depositary receipts and foreign shares traded over the counter), over 7 quarters from 2024-09-30 to 2026-06-30, Siren, L.L.C. opened 0 positions, added to 0, reduced 4 and sold out of 2.

  • Q1 2026: Stock Ascendis Pharma A/S; Country of operation —; Class SPONSORED ADR; Shares before 235,862.
  • Q1 2025: Stock Achilles Therapeutics PLC; Country of operation —; Class SPONSORED ADS; Shares before 755,375.

Each consecutive pair of Form 13F-HR filings compared (SEC CIK 2005245), 7 quarters: Q2 2026 (2026-03-31 to 2026-06-30, filed 2026-08-13); Q1 2026 (2025-12-31 to 2026-03-31, filed 2026-05-14); Q4 2025 (2025-09-30 to 2025-12-31, filed 2026-02-13); Q3 2025 (2025-06-30 to 2025-09-30, filed 2025-11-13); Q2 2025 (2025-03-31 to 2025-06-30, filed 2025-08-13); Q1 2025 (2024-12-31 to 2025-03-31, filed 2025-05-23); Q4 2024 (2024-09-30 to 2024-12-31, filed 2025-02-14). Rows for the same security, class and put/call are added together. Value change is the filed value at each quarter end, so it includes the price move. Only the filings held here are compared; the firm's 13F-HR filings go back to the quarter ended 2024-09-30.

QuarterStockCountry of operationClassShares beforeShares afterShare changeValue beforeValue afterValue changeFiled
Q1 2026Ascendis Pharma A/S
CUSIP 04351P101
SPONSORED ADR235,8620-235,862$50,295,213$0-$50,295,2132026-05-14
Q1 2025Achilles Therapeutics PLC
CUSIP 00449L102
SPONSORED ADS755,3750-755,375$861,128$0-$861,1282025-05-23

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