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D. E. Shaw & Co., Inc.: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of D. E. Shaw & Co., Inc. on MRK, newest first. How the timeline and the estimate are built.

D. E. Shaw & Co., Inc. held 2,738,023 MRK 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 2,738,023 shares
    Change vs previous 13F -659,559 shares

    0.22% of the 13F portfolio, value $351,835,956.

    13F-HR 0001104659-26-097217 filed by D. E. Shaw & Co., 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 3,397,582 shares
    Change vs previous 13F -120,882 shares

    0.32% of the 13F portfolio, value $408,695,138.

    13F-HR 0001104659-26-062472 filed by D. E. Shaw & Co., 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 3,518,464 shares
    Change vs previous 13F +50,612 shares

    0.28% of the 13F portfolio, value $370,353,521.

    13F-HR 0001104659-26-016332 filed by D. E. Shaw & Co., 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 3,467,852 shares
    Change vs previous 13F -6,899,937 shares

    0.23% of the 13F portfolio, value $291,056,819.

    13F-HR 0001104659-25-112505 filed by D. E. Shaw & Co., 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 10,367,789 shares
    Change vs previous 13F +1,056,063 shares

    0.82% of the 13F portfolio, value $820,714,177.

    13F-HR 0001104659-25-078542 filed by D. E. Shaw & Co., 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 9,311,726 shares
    Change vs previous 13F +2,936,922 shares

    0.99% of the 13F portfolio, value $835,820,526.

    13F-HR 0001104659-25-049422 filed by D. E. Shaw & Co., 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 6,374,804 shares
    Change vs previous 13F -386,291 shares

    0.7% of the 13F portfolio, value $634,165,502.

    13F-HR 0001104659-25-014028 filed by D. E. Shaw & Co., 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 6,761,095 shares
    Change vs previous 13F not available

    1% of the 13F portfolio, value $767,789,948.

    13F-HR 0001104659-24-119021 filed by D. E. Shaw & Co., Inc.
    Filed (acceptance time not in the bulk data set), ingested

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