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Disclosery

SRB CORP: MRK position timeline

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

SRB CORP held 463,298 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 463,298 shares
    Change vs previous 13F 0 shares

    3.2% of the 13F portfolio, value $59,533,794.

    13F-HR 0000904454-26-000456 filed by SRB CORP
    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 463,298 shares
    Change vs previous 13F -10,067 shares

    3.42% of the 13F portfolio, value $55,730,117.

    13F-HR 0000904454-26-000289 filed by SRB CORP
    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 473,365 shares
    Change vs previous 13F 0 shares

    2.74% of the 13F portfolio, value $49,826,400.

    13F-HR 0000904454-26-000102 filed by SRB CORP
    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 473,365 shares
    Change vs previous 13F -23,181 shares

    2.28% of the 13F portfolio, value $39,729,524.

    13F-HR 0000904454-25-000595 filed by SRB CORP
    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 496,546 shares
    Change vs previous 13F -748,990 shares

    2.36% of the 13F portfolio, value $39,306,582.

    13F-HR 0000904454-25-000420 filed by SRB CORP
    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 1,245,536 shares
    Change vs previous 13F -51,897 shares

    7.29% of the 13F portfolio, value $111,799,311.

    13F-HR 0000904454-25-000270 filed by SRB CORP
    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 1,297,433 shares
    Change vs previous 13F 0 shares

    7.4% of the 13F portfolio, value $129,068,634.

    13F-HR 0000904454-25-000128 filed by SRB CORP
    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 1,297,433 shares
    Change vs previous 13F not available

    8.26% of the 13F portfolio, value $147,336,492.

    13F-HR 0000904454-24-000609 filed by SRB CORP
    Filed (acceptance time not in the bulk data set), ingested

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