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SEI INVESTMENTS CO: MRK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of SEI INVESTMENTS CO on MRK, newest first. How the timeline and the estimate are built.

SEI INVESTMENTS CO held 1,713,402 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 1,713,402 shares
    Change vs previous 13F -389,054 shares

    0.19% of the 13F portfolio, value $220,175,088.

    13F-HR 0002048251-26-006553 filed by SEI INVESTMENTS CO
    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 2,102,456 shares
    Change vs previous 13F +256,265 shares

    0.23% of the 13F portfolio, value $252,892,349.

    13F-HR 0002048251-26-003739 filed by SEI INVESTMENTS CO
    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 1,846,191 shares
    Change vs previous 13F +92,654 shares

    0.19% of the 13F portfolio, value $194,330,847.

    13F-HR 0000350894-26-000005 filed by SEI INVESTMENTS CO
    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 1,753,537 shares
    Change vs previous 13F +149,395 shares

    0.16% of the 13F portfolio, value $147,177,247.

    13F-HR 0002048251-25-002343 filed by SEI INVESTMENTS CO
    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 1,604,142 shares
    Change vs previous 13F -187,799 shares

    0.15% of the 13F portfolio, value $126,981,002.

    13F-HR 0001041062-25-000162 filed by SEI INVESTMENTS CO
    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/A 1,791,941 shares
    Change vs previous 13F +127,847 shares

    0.21% of the 13F portfolio, value $160,853,072.

    13F-HR/A 0001041062-25-000106 filed by SEI INVESTMENTS CO
    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 1,664,094 shares
    Change vs previous 13F -109,664 shares

    0.21% of the 13F portfolio, value $165,544,557.

    13F-HR 0001041062-25-000019 filed by SEI INVESTMENTS CO
    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 1,773,758 shares
    Change vs previous 13F not available

    0.26% of the 13F portfolio, value $201,427,167.

    13F-HR 0001041062-24-000165 filed by SEI INVESTMENTS CO
    Filed (acceptance time not in the bulk data set), ingested

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