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RTW INVESTMENTS, LP: OBIO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RTW INVESTMENTS, LP on OBIO, newest first. How the timeline and the estimate are built.

RTW INVESTMENTS, LP held 9,556,063 OBIO shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 9,556,063 shares
    Change vs previous 13F +1,250,000 shares

    0.35% of the 13F portfolio, value $41,234,412.

    13F-HR 0001493215-26-000164 filed by RTW INVESTMENTS, LP
    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 8,306,063 shares
    Change vs previous 13F 0 shares

    0.35% of the 13F portfolio, value $35,300,768.

    13F-HR 0001493215-26-000130 filed by RTW INVESTMENTS, LP
    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 8,306,063 shares
    Change vs previous 13F 0 shares

    0.35% of the 13F portfolio, value $34,470,161.

    13F-HR 0001493215-26-000060 filed by RTW INVESTMENTS, LP
    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 8,306,063 shares
    Change vs previous 13F +1 shares

    0.25% of the 13F portfolio, value $20,599,036.

    13F-HR 0001493215-25-000054 filed by RTW INVESTMENTS, LP
    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 8,306,062 shares
    Change vs previous 13F +99,900 shares

    0.32% of the 13F portfolio, value $22,260,246.

    13F-HR 0001493215-25-000007 filed by RTW INVESTMENTS, LP
    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 8,206,162 shares
    Change vs previous 13F 0 shares

    0.54% of the 13F portfolio, value $35,122,373.

    13F-HR 0001493215-25-000003 filed by RTW INVESTMENTS, LP
    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 8,206,162 shares
    Change vs previous 13F +3 shares

    0.5% of the 13F portfolio, value $32,824,648.

    13F-HR 0001493152-25-006608 filed by RTW INVESTMENTS, LP
    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 8,206,159 shares
    Change vs previous 13F not available

    0.61% of the 13F portfolio, value $42,179,657.

    13F-HR 0001493152-24-045409 filed by RTW INVESTMENTS, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).