SEC 13F Intelligence

Managers / Q2 2025 · view latest →

Siren, L.L.C.

CIK 0002005245 · 10 QUAIL ROAD, GREENWICH, CT, 06831 · 212-371-1717

Reported Value
$1.9B
Q2 2025
Positions
111
Filings on Record
8
2019–present window
Filed
Aug 13, 2025
original filing

Summary

Siren, L.L.C. reported $1.9B in U.S.-listed holdings across 111 positions for Q2 2025.

Its largest position, SRRK, represents 17.0% of the portfolio.

Compared with Q1 2025, the fund opened 15 new positions and exited 21.

Reported Value by Quarter

13F Reported Value
Q3 ’24: $2.0BQ3 ’24Q4 ’24: $2.3BQ4 ’24Q1 ’25: $1.8BQ1 ’25Q2 ’25: $1.9BQ2 ’25Q3 ’25: $2.6BQ3 ’25Q4 ’25: $3.4BQ4 ’25Q1 ’26: $3.6BQ1 ’26filingsflow.com

Portfolio Composition

By security type
Common Stock: 78.6%ADR: 11.3%Other: 10.2%
  • Common Stock · 78.6% · $1.5B
  • ADR · 11.3% · $218M
  • Other · 10.2% · $196M

Quarter-over-Quarter Changes full breakdown →

Holdings — Q2 2025

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Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$3.6B102May 14, 202613F-HRchanges · EDGAR ↗
Q4 2025$3.4B115Feb 13, 202613F-HRchanges · EDGAR ↗
Q3 2025$2.6B117Nov 13, 202513F-HRchanges · EDGAR ↗
Q2 2025$1.9B111Aug 13, 202513F-HRchanges · EDGAR ↗
Q1 2025$1.8B117May 23, 2025RESTATEMENTchanges · EDGAR ↗
Q4 2024$2.3B119Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$2.0B112Nov 13, 202413F-HRchanges · EDGAR ↗

Other Included Managers

This filing reports holdings on behalf of 2 additional managers.

  • Invus Financial Advisors, LLC028-19938
  • Invus Group, LLC028-24462

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.