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

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

Siren, L.L.C. held 11,397,781 ERAS 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 11,397,781 shares
    Change vs previous 13F +153,535 shares

    4.24% of the 13F portfolio, value $208,807,348.

    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 11,244,246 shares
    Change vs previous 13F +2,486,997 shares

    5.04% of the 13F portfolio, value $181,931,900.

    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 8,757,249 shares
    Change vs previous 13F 0 shares

    0.97% of the 13F portfolio, value $32,576,966.

    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 8,757,249 shares
    Change vs previous 13F 0 shares

    0.75% of the 13F portfolio, value $19,090,803.

    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 8,757,249 shares
    Change vs previous 13F 0 shares

    0.58% of the 13F portfolio, value $11,121,706.

    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 8,757,249 shares
    Change vs previous 13F -99,930 shares

    0.68% of the 13F portfolio, value $11,997,431.

    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 8,857,179 shares
    Change vs previous 13F 0 shares

    0.98% of the 13F portfolio, value $22,231,519.

    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 8,857,179 shares
    Change vs previous 13F not available

    1.21% of the 13F portfolio, value $24,180,099.

    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).