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Disclosery

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

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

Siren, L.L.C. held 465,000 ONC 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 465,000 shares
    Change vs previous 13F 0 shares

    2.69% of the 13F portfolio, value $132,511,050.

    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 465,000 shares
    Change vs previous 13F -35,000 shares

    3.83% of the 13F portfolio, value $138,091,050.

    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 500,000 shares
    Change vs previous 13F +7,010 shares

    4.53% of the 13F portfolio, value $151,905,000.

    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 492,990 shares
    Change vs previous 13F -17,000 shares

    6.57% of the 13F portfolio, value $167,961,693.

    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 509,990 shares
    Change vs previous 13F +11,301 shares

    6.39% of the 13F portfolio, value $123,453,279.

    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 498,689 shares
    Change vs previous 13F -155,032 shares

    7.66% of the 13F portfolio, value $135,728,185.

    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 653,721 shares
    Change vs previous 13F +90,407 shares

    5.34% of the 13F portfolio, value $120,748,806.

    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 563,314 shares
    Change vs previous 13F not available

    6.33% of the 13F portfolio, value $126,469,626.

    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).