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Disclosery

DF DENT & CO INC: TMO position timeline

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

DF DENT & CO INC held 45,263 TMO 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 45,263 shares
    Change vs previous 13F -48,677 shares

    0.43% of the 13F portfolio, value $22,693,006.

    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 93,940 shares
    Change vs previous 13F -86,043 shares

    0.88% of the 13F portfolio, value $46,174,510.

    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 179,983 shares
    Change vs previous 13F -21,726 shares

    1.5% of the 13F portfolio, value $104,291,016.

    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 201,709 shares
    Change vs previous 13F -8,038 shares

    1.26% of the 13F portfolio, value $97,832,969.

    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 209,747 shares
    Change vs previous 13F -2,752 shares

    1.08% of the 13F portfolio, value $85,044,169.

    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 212,499 shares
    Change vs previous 13F -5,805 shares

    1.41% of the 13F portfolio, value $105,739,321.

    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 218,304 shares
    Change vs previous 13F -6,475 shares

    1.44% of the 13F portfolio, value $113,568,341.

    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 224,779 shares
    Change vs previous 13F not available

    1.69% of the 13F portfolio, value $139,041,310.

    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).