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Disclosery

Siren, L.L.C.: SRRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Siren, L.L.C. on SRRK, newest first. How the timeline and the estimate are built.

Siren, L.L.C. held 9,575,013 SRRK shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 9,575,013 shares
    Change vs previous 13F -1,250,000 shares

    10.69% of the 13F portfolio, value $526,625,715.

    13F-HR 0002005245-26-000008 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 10,825,013 shares
    Change vs previous 13F 0 shares

    14.75% of the 13F portfolio, value $532,157,639.

    13F-HR 0002005245-26-000006 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 10,825,013 shares
    Change vs previous 13F +1,575,008 shares

    14.22% of the 13F portfolio, value $476,841,823.

    13F-HR 0002005245-26-000003 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 9,250,005 shares
    Change vs previous 13F 0 shares

    13.48% of the 13F portfolio, value $344,470,186.

    13F-HR 0002005245-25-000012 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 9,250,005 shares
    Change vs previous 13F 0 shares

    16.95% of the 13F portfolio, value $327,635,177.

    13F-HR 0002005369-25-000014 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F/A 9,250,005 shares
    Change vs previous 13F 0 shares

    16.78% of the 13F portfolio, value $297,387,661.

    13F-HR/A 0002005245-25-000008 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 9,250,005 shares
    Change vs previous 13F -2,009,433 shares

    17.66% of the 13F portfolio, value $399,785,216.

    13F-HR 0002005245-25-000002 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 11,259,438 shares
    Change vs previous 13F not available

    4.51% of the 13F portfolio, value $90,188,098.

    13F-HR 0002005245-24-000005 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).