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BAKER BROS. ADVISORS LP: SERA position timeline

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

BAKER BROS. ADVISORS LP held 5,498,170 SERA 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 5,498,170 shares
    Change vs previous 13F 0 shares

    0.05% of the 13F portfolio, value $10,006,669.

    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 5,498,170 shares
    Change vs previous 13F 0 shares

    0.06% of the 13F portfolio, value $11,161,285.

    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 5,498,170 shares
    Change vs previous 13F 0 shares

    0.09% of the 13F portfolio, value $16,219,602.

    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 5,498,170 shares
    Change vs previous 13F 0 shares

    0.12% of the 13F portfolio, value $16,824,400.

    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 5,498,170 shares
    Change vs previous 13F 0 shares

    0.15% of the 13F portfolio, value $15,229,931.

    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 5,498,170 shares
    Change vs previous 13F +63,771 shares

    0.22% of the 13F portfolio, value $20,233,266.

    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 5,434,399 shares
    Change vs previous 13F 0 shares

    0.47% of the 13F portfolio, value $44,236,008.

    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 5,434,399 shares
    Change vs previous 13F not available

    0.44% of the 13F portfolio, value $42,388,312.

    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).