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BAKER BROS. ADVISORS LP: ACAD position timeline

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

BAKER BROS. ADVISORS LP held 42,912,904 ACAD 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 42,912,904 shares
    Change vs previous 13F +16,214 shares

    5.44% of the 13F portfolio, value $1,085,696,471.

    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 42,896,690 shares
    Change vs previous 13F 0 shares

    5.48% of the 13F portfolio, value $954,880,319.

    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 42,896,690 shares
    Change vs previous 13F 0 shares

    6.71% of the 13F portfolio, value $1,145,770,590.

    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 42,896,690 shares
    Change vs previous 13F 0 shares

    6.61% of the 13F portfolio, value $915,415,365.

    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 42,896,690 shares
    Change vs previous 13F +18,774 shares

    8.98% of the 13F portfolio, value $925,281,603.

    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 42,877,916 shares
    Change vs previous 13F 0 shares

    7.88% of the 13F portfolio, value $712,202,185.

    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 42,877,916 shares
    Change vs previous 13F 0 shares

    8.4% of the 13F portfolio, value $786,809,759.

    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 42,877,916 shares
    Change vs previous 13F not available

    6.83% of the 13F portfolio, value $659,462,348.

    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).