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Disclosery

DF DENT & CO INC: COST position timeline

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

DF DENT & CO INC held 14,239 COST 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 14,239 shares
    Change vs previous 13F -297 shares

    0.25% of the 13F portfolio, value $13,319,994.

    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 14,536 shares
    Change vs previous 13F -1,440 shares

    0.28% of the 13F portfolio, value $14,483,849.

    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 15,976 shares
    Change vs previous 13F -85 shares

    0.2% of the 13F portfolio, value $13,777,126.

    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 16,061 shares
    Change vs previous 13F -649 shares

    0.19% of the 13F portfolio, value $14,866,655.

    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 16,710 shares
    Change vs previous 13F +28 shares

    0.21% of the 13F portfolio, value $16,541,717.

    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 16,682 shares
    Change vs previous 13F -6 shares

    0.21% of the 13F portfolio, value $15,777,050.

    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 16,688 shares
    Change vs previous 13F -36 shares

    0.19% of the 13F portfolio, value $15,290,958.

    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 16,724 shares
    Change vs previous 13F not available

    0.18% of the 13F portfolio, value $14,826,145.

    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).