Institutional Manager · CIK 0000934999
DF DENT & CO INC
BALTIMORE, MD · File #028-03691
Latest AUM
$6.95B
Positions
263
Top-10 Concentration
37.3%
Filings
12
Sector Allocation
Filing History
View all filings →- 13F HOLDINGS REPORTQ/E Dec 2025263 pos · $6.95B
- 13F HOLDINGS REPORTQ/E Sep 2025272 pos · $7.74B
- 13F HOLDINGS REPORTQ/E Jun 2025251 pos · $7.88B
- 13F HOLDINGS REPORTQ/E Mar 2025261 pos · $7.49B
- 13F HOLDINGS REPORTQ/E Dec 2024248 pos · $7.90B
- 13F HOLDINGS REPORTQ/E Sep 2024262 pos · $8.22B
- 13F HOLDINGS REPORTQ/E Jun 2024244 pos · $7.74B
- 13F HOLDINGS REPORTQ/E Mar 20242,660 pos · $8.19B
- 13F HOLDINGS REPORTQ/E Dec 2023256 pos · $6.83B
- 13F HOLDINGS REPORTQ/E Sep 2023257 pos · $7.39B
- 13F HOLDINGS REPORTQ/E Jun 2023238 pos · $7.09B
- 13F HOLDINGS REPORTQ/E Mar 2023239 pos · $6.69B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ALPHABET INC CL C | GOOG | 824,929 | $258.9M | 4.62% |
| 2 | HEICO CORP CL A | HEI-A | 988,075 | $249.4M | 4.45% |
| 3 | VISA INC CL A | V | 673,030 | $236.0M | 4.21% |
| 4 | VULCAN MATERIALS CO | 929160109 | 740,958 | $211.3M | 3.77% |
| 5 | AMAZON.COM INC | AMZN | 874,676 | $201.9M | 3.60% |
| 6 | TRANSDIGM GROUP INC | TDG | 149,748 | $199.1M | 3.56% |
| 7 | ECOLAB INC | ECL | 709,923 | $186.4M | 3.33% |
| 8 | WASTE CONNECTIONS INC | WCN | 1,040,943 | $182.5M | 3.26% |
| 9 | MASTERCARD INC CL A | MA | 318,262 | $181.7M | 3.24% |
| 10 | MOODYS CORP | MCO | 351,928 | $179.8M | 3.21% |
| 11 | INTUITIVE SURGICAL INC | ISRG | 305,391 | $173.0M | 3.09% |
| 12 | MICROSOFT CORP | MSFT | 320,463 | $155.0M | 2.77% |
| 13 | BIO-TECHNE CORP | TECH | 2,592,215 | $152.4M | 2.72% |
| 14 | CBRE GROUP INC | CBRE | 860,684 | $138.4M | 2.47% |
| 15 | COSTAR GROUP INC | CSGP | 2,007,630 | $135.0M | 2.41% |
| 16 | VEEVA SYSTEMS, INC. | VEEV | 594,801 | $132.8M | 2.37% |
| 17 | S & P GLOBAL INC | SPGI | 241,603 | $126.3M | 2.25% |
| 18 | KINSALE CAPITAL GROUP INC. | 49714p108 | 315,756 | $123.5M | 2.21% |
| 19 | FASTENAL CO | FAST | 2,899,293 | $116.3M | 2.08% |
| 20 | MONOLITHIC PWR SYS INC COM | 609839105 | 127,277 | $115.4M | 2.06% |