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

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

Siren, L.L.C. held 1,859,279 COGT 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 1,859,279 shares
    Change vs previous 13F +150,000 shares

    1.46% of the 13F portfolio, value $71,954,097.

    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 1,709,279 shares
    Change vs previous 13F +80,000 shares

    1.82% of the 13F portfolio, value $65,790,149.

    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 1,629,279 shares
    Change vs previous 13F -95,000 shares

    1.73% of the 13F portfolio, value $57,871,990.

    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 1,724,279 shares
    Change vs previous 13F +869,900 shares

    0.97% of the 13F portfolio, value $24,760,646.

    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 854,379 shares
    Change vs previous 13F not available

    0.32% of the 13F portfolio, value $6,134,441.

    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).