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Westchester Capital Management, Inc.: PFE position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Westchester Capital Management, Inc. on PFE, newest first. How the timeline and the estimate are built.

Westchester Capital Management, Inc. held 276,275 PFE shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 276,275 shares
    Change vs previous 13F -5,353 shares

    1.2% of the 13F portfolio, value $6,652,702.

    13F-HR 0001104659-26-085982 filed by Westchester Capital Management, Inc.
    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 281,628 shares
    Change vs previous 13F -255 shares

    1.59% of the 13F portfolio, value $7,908,114.

    13F-HR 0001104659-26-056078 filed by Westchester Capital Management, Inc.
    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 281,883 shares
    Change vs previous 13F +9,434 shares

    1.45% of the 13F portfolio, value $7,018,887.

    13F-HR 0001104659-26-014458 filed by Westchester Capital Management, Inc.
    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 272,449 shares
    Change vs previous 13F -2,063 shares

    1.49% of the 13F portfolio, value $6,942,001.

    13F-HR 0001104659-25-108451 filed by Westchester Capital Management, Inc.
    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 274,512 shares
    Change vs previous 13F +1,082 shares

    1.57% of the 13F portfolio, value $6,654,171.

    13F-HR 0001104659-25-070873 filed by Westchester Capital Management, Inc.
    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 273,430 shares
    Change vs previous 13F +321 shares

    1.72% of the 13F portfolio, value $6,928,716.

    13F-HR 0001104659-25-046340 filed by Westchester Capital Management, Inc.
    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 273,109 shares
    Change vs previous 13F -5,444 shares

    1.82% of the 13F portfolio, value $7,245,582.

    13F-HR 0001104659-25-010664 filed by Westchester Capital Management, Inc.
    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 278,553 shares
    Change vs previous 13F not available

    1.96% of the 13F portfolio, value $8,061,324.

    13F-HR 0001104659-24-113492 filed by Westchester Capital Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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