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Disclosery

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

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

Siren, L.L.C. held 1,136,275 RYTM 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 1,136,275 shares
    Change vs previous 13F +410,764 shares

    2.56% of the 13F portfolio, value $126,160,613.

    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 725,511 shares
    Change vs previous 13F +225,536 shares

    1.75% of the 13F portfolio, value $63,097,692.

    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 499,975 shares
    Change vs previous 13F 0 shares

    1.6% of the 13F portfolio, value $53,517,324.

    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 499,975 shares
    Change vs previous 13F +90,233 shares

    1.98% of the 13F portfolio, value $50,492,475.

    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 409,742 shares
    Change vs previous 13F +132,209 shares

    1.34% of the 13F portfolio, value $25,891,597.

    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 277,533 shares
    Change vs previous 13F not available

    0.83% of the 13F portfolio, value $14,700,923.

    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).