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Disclosery

DF DENT & CO INC: MCO position timeline

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

DF DENT & CO INC held 269,427 MCO 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 269,427 shares
    Change vs previous 13F -25,974 shares

    2.31% of the 13F portfolio, value $122,029,058.

    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 295,401 shares
    Change vs previous 13F -56,527 shares

    2.47% of the 13F portfolio, value $128,868,777.

    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 351,928 shares
    Change vs previous 13F -49,277 shares

    2.59% of the 13F portfolio, value $179,782,654.

    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 401,205 shares
    Change vs previous 13F -26,991 shares

    2.47% of the 13F portfolio, value $191,166,036.

    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 428,196 shares
    Change vs previous 13F -7,579 shares

    2.73% of the 13F portfolio, value $214,779,075.

    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 435,775 shares
    Change vs previous 13F -16,046 shares

    2.71% of the 13F portfolio, value $202,936,236.

    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 451,821 shares
    Change vs previous 13F -29,729 shares

    2.71% of the 13F portfolio, value $213,878,513.

    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 481,550 shares
    Change vs previous 13F not available

    2.78% of the 13F portfolio, value $228,538,923.

    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).