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Disclosery

DF DENT & CO INC: MRK position timeline

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

DF DENT & CO INC held 62,478 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 62,478 shares
    Change vs previous 13F +39,789 shares

    0.15% of the 13F portfolio, value $8,028,423.

    13F-HR 0000934999-26-000003 filed by DF DENT & 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 22,689 shares
    Change vs previous 13F -10,153 shares

    0.05% of the 13F portfolio, value $2,729,260.

    13F-HR 0000934999-26-000002 filed by DF DENT & 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 32,842 shares
    Change vs previous 13F -49,263 shares

    0.05% of the 13F portfolio, value $3,456,949.

    13F-HR 0000934999-26-000001 filed by DF DENT & 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 82,105 shares
    Change vs previous 13F +31,565 shares

    0.09% of the 13F portfolio, value $6,891,073.

    13F-HR 0000934999-25-000008 filed by DF DENT & 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 50,540 shares
    Change vs previous 13F +4,809 shares

    0.05% of the 13F portfolio, value $4,000,746.

    13F-HR 0000934999-25-000005 filed by DF DENT & 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 45,731 shares
    Change vs previous 13F -5,615 shares

    0.05% of the 13F portfolio, value $4,104,815.

    13F-HR 0000934999-25-000004 filed by DF DENT & 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 51,346 shares
    Change vs previous 13F +179 shares

    0.06% of the 13F portfolio, value $5,107,900.

    13F-HR 0000934999-25-000002 filed by DF DENT & 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 51,167 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $5,810,525.

    13F-HR 0000934999-24-000013 filed by DF DENT & CO INC
    Filed (acceptance time not in the bulk data set), ingested

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