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

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

Siren, L.L.C. held 968,598 SYRE 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 968,598 shares
    Change vs previous 13F +150,000 shares

    1.75% of the 13F portfolio, value $85,992,130.

    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 818,598 shares
    Change vs previous 13F 0 shares

    1.14% of the 13F portfolio, value $41,290,083.

    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 818,598 shares
    Change vs previous 13F +450,000 shares

    0.8% of the 13F portfolio, value $26,817,270.

    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 368,598 shares
    Change vs previous 13F 0 shares

    0.24% of the 13F portfolio, value $6,177,702.

    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 368,598 shares
    Change vs previous 13F 0 shares

    0.29% of the 13F portfolio, value $5,517,912.

    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 368,598 shares
    Change vs previous 13F -5,402 shares

    0.34% of the 13F portfolio, value $5,947,329.

    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 374,000 shares
    Change vs previous 13F not available

    0.38% of the 13F portfolio, value $8,706,720.

    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).