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Disclosery

DEERFIELD MANAGEMENT COMPANY, L.P.: PFE position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DEERFIELD MANAGEMENT COMPANY, L.P. on PFE, newest first. How the timeline and the estimate are built.

DEERFIELD MANAGEMENT COMPANY, L.P. held 3,040,000 PFE 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 3,040,000 shares
    Change vs previous 13F 0 shares

    0.76% of the 13F portfolio, value $73,203,200.

    13F-HR 0001213900-26-089991 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    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 3,040,000 shares
    Change vs previous 13F +3,040,000 shares

    1.01% of the 13F portfolio, value $85,363,200.

    13F-HR 0001213900-26-057678 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    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 0 shares
    Change vs previous 13F -3,303,790 shares

    13F-HR 0001213900-26-017265 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  4. period ended2025-09-30
    13F 3,303,790 shares
    Change vs previous 13F -1,002,474 shares

    1.29% of the 13F portfolio, value $84,180,569.

    13F-HR 0001213900-25-110851 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    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 4,306,264 shares
    Change vs previous 13F +958,968 shares

    1.89% of the 13F portfolio, value $104,383,839.

    13F-HR 0001213900-25-076586 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    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 3,347,296 shares
    Change vs previous 13F not available

    1.68% of the 13F portfolio, value $84,820,481.

    13F-HR 0001213900-25-044138 filed by DEERFIELD MANAGEMENT COMPANY, L.P.
    Filed (acceptance time not in the bulk data set), ingested

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