DF DENT & CO INC: AMT position timeline

DF DENT & CO INC held 66,426 AMT 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 66,426 shares

   Change vs previous 13F -65,456 shares

   0.21% of the 13F portfolio, value $10,865,280.

   13F-HR 0000934999-26-000003 filed by DF DENT & CO INC
   Filed 2026-08-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 131,882 shares

   Change vs previous 13F -28,163 shares

   0.44% of the 13F portfolio, value $22,760,170.

   13F-HR 0000934999-26-000002 filed by DF DENT & CO INC
   Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

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

3. period ended2025-12-31

   13F 160,045 shares

   Change vs previous 13F -15,618 shares

   0.4% of the 13F portfolio, value $28,099,046.

   13F-HR 0000934999-26-000001 filed by DF DENT & CO INC
   Filed 2026-02-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

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

4. period ended2025-09-30

   13F 175,663 shares

   Change vs previous 13F -17,432 shares

   0.44% of the 13F portfolio, value $33,783,428.

   13F-HR 0000934999-25-000008 filed by DF DENT & CO INC
   Filed 2025-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

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

5. period ended2025-06-30

   13F 193,095 shares

   Change vs previous 13F -6,711 shares

   0.54% of the 13F portfolio, value $42,677,954.

   13F-HR 0000934999-25-000005 filed by DF DENT & CO INC
   Filed 2025-08-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

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

6. period ended2025-03-31

   13F 199,806 shares

   Change vs previous 13F -15,317 shares

   0.58% of the 13F portfolio, value $43,477,736.

   13F-HR 0000934999-25-000004 filed by DF DENT & CO INC
   Filed 2025-05-15 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

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

7. period ended2024-12-31

   13F 215,123 shares

   Change vs previous 13F -6,271 shares

   0.5% of the 13F portfolio, value $39,455,764.

   13F-HR 0000934999-25-000002 filed by DF DENT & CO INC
   Filed 2025-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC

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

8. period ended2024-09-30

   13F 221,394 shares

   Change vs previous 13F not available

   0.63% of the 13F portfolio, value $51,487,423.

   13F-HR 0000934999-24-000013 filed by DF DENT & CO INC
   Filed 2024-11-15 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

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