DF DENT & CO INC

CIK 0000934999 · BALTIMORE, MD · Quarter end: 2026-06-30 · Filed on: 2026-08-14 · Open the SEC source

DF DENT & CO INC reported 271 positions worth $5.27B as of June 30, 2026 (13F filed August 14, 2026). Largest holding: GOOG (4.6%).

Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$5.27B
2026 Q2
Positions
271
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
29.9%
Est. Net Flow (Q)
2026 Q2
10 / 271 positions shown
#SymbolCompanyTypeValue% Port.Shares1YYTD
1GOOGALPHABET INC CL CSH$240.1M4.55%679,481
2VVISA INC CL ASH$190.1M3.61%554,092
3HEI-AHEICO CORP CL ASH$180.3M3.42%699,176
4AMZNAMAZON.COM INCSH$165.1M3.13%692,739
5TDGTRANSDIGM GROUP INCSH$149.1M2.83%111,941
6VMCVULCAN MATERIALS COSH$144.6M2.74%490,212
7ECLECOLAB INCSH$130.3M2.47%467,771
8WCNWASTE CONNECTIONS INCSH$128.3M2.43%769,572
9MAMASTERCARD INC CL ASH$126.6M2.40%246,504
10FASTFASTENAL COSH$123.8M2.35%2,577,410

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Read the 2026-Q2 quarterly report · 13F Filing Calendar

Frequently Asked Questions

What stocks does DF DENT & CO INC hold as of Q2 2026?

DF DENT & CO INC reported 271 positions worth $5.27B in its Q2 2026 13F filing. Largest positions: GOOG (4.6%), V (3.6%), HEI-A (3.4%), AMZN (3.1%) and TDG (2.8%).

What did DF DENT & CO INC buy in Q2 2026?

No previous quarter is available yet; the comparison appears with the next filing.

What did DF DENT & CO INC sell in Q2 2026?

No previous quarter is available yet.

13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.