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BAKER BROS. ADVISORS LP: KYMR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BAKER BROS. ADVISORS LP on KYMR, newest first. How the timeline and the estimate are built.

BAKER BROS. ADVISORS LP held 8,657,242 KYMR 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 8,657,242 shares
    Change vs previous 13F 0 shares

    4.97% of the 13F portfolio, value $992,725,940.

    13F-HR 0001104659-26-097191 filed by BAKER BROS. ADVISORS 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 8,657,242 shares
    Change vs previous 13F 0 shares

    4.14% of the 13F portfolio, value $721,061,686.

    13F-HR 0001104659-26-062547 filed by BAKER BROS. ADVISORS 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 8,657,242 shares
    Change vs previous 13F +2,005,813 shares

    3.94% of the 13F portfolio, value $673,620,000.

    13F-HR 0001104659-26-016374 filed by BAKER BROS. ADVISORS 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 6,651,429 shares
    Change vs previous 13F 0 shares

    2.72% of the 13F portfolio, value $376,470,881.

    13F-HR 0001104659-25-112595 filed by BAKER BROS. ADVISORS 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 6,651,429 shares
    Change vs previous 13F +655,500 shares

    2.82% of the 13F portfolio, value $290,268,362.

    13F-HR 0001104659-25-078573 filed by BAKER BROS. ADVISORS 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 5,995,929 shares
    Change vs previous 13F 0 shares

    1.82% of the 13F portfolio, value $164,108,577.

    13F-HR 0001104659-25-049518 filed by BAKER BROS. ADVISORS 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 5,995,929 shares
    Change vs previous 13F 0 shares

    2.58% of the 13F portfolio, value $241,216,224.

    13F-HR 0001104659-25-014085 filed by BAKER BROS. ADVISORS 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 5,995,929 shares
    Change vs previous 13F not available

    2.94% of the 13F portfolio, value $283,787,320.

    13F-HR 0001104659-24-118899 filed by BAKER BROS. ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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