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BAKER BROS. ADVISORS LP: CERS position timeline

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

BAKER BROS. ADVISORS LP held 6,395,431 CERS 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 6,395,431 shares
    Change vs previous 13F -3,612,914 shares

    0.09% of the 13F portfolio, value $18,674,659.

    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 10,008,345 shares
    Change vs previous 13F 0 shares

    0.1% of the 13F portfolio, value $18,215,188.

    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 10,008,345 shares
    Change vs previous 13F 0 shares

    0.12% of the 13F portfolio, value $20,617,191.

    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 10,008,345 shares
    Change vs previous 13F -2,875,499 shares

    0.11% of the 13F portfolio, value $15,913,269.

    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 12,883,844 shares
    Change vs previous 13F -6,467,243 shares

    0.18% of the 13F portfolio, value $18,166,220.

    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 19,351,087 shares
    Change vs previous 13F -126,252 shares

    0.3% of the 13F portfolio, value $26,898,011.

    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 19,477,339 shares
    Change vs previous 13F 0 shares

    0.32% of the 13F portfolio, value $29,995,102.

    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 19,477,339 shares
    Change vs previous 13F not available

    0.35% of the 13F portfolio, value $33,890,570.

    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).