DF DENT & CO INC's Q1 2024 13F is in

Form 13F-HR for the quarter ended Mar 31, 2024 · filed May 15, 2024 · 265 reported positions · accession 0000934999-24-000004

This filing covers a somewhat different set of reporting entities than the fund's prior filing, so a few of the changes below may reflect that rather than trading.

What changed this quarter

DF DENT & CO INC's changes in reported equity positions, Q1 2024
Activity Security Weight before Weight now Change Shares Shares %
Increased WEST PHARMACEUTICALS, INC. (WST) 0.4% 1.3% +0.9 pts +182K sh +235%
Reduced FASTENAL CO (FAST) 3.0% 2.7% −0.3 pts −622K sh −18%
Increased ASML HOLDINGS (ASML) 0.0% 0.4% +0.4 pts +33,477 sh +2808%
Increased VERALTO CORP (VLTO) 2.1% 2.4% +0.3 pts +297K sh +15%
Increased GOOSEHEAD INSURANCE, INC. (GSHD) 1.0% 1.1% +0.1 pts +380K sh +38%
New METTLER TOLEDO INTL (MTD) — 0.3% +0.3 pts +17,774 sh new
Reduced SBA COMMUNICATIONS CORP CL A (SBAC) 0.4% 0.1% −0.4 pts −102K sh −79%
Reduced ANSYS INC (ANSS) 3.6% 2.9% −0.7 pts −59,553 sh −8%
Reduced WILLSCOT MOBILE MINI HLDGS COR (WSC) 2.1% 1.8% −0.3 pts −433K sh −12%
Reduced CROWDSTRIKE HOLDINGS, INC. (CRWD) 1.0% 1.0% 0.0 pts −50,750 sh −17%
Increased ALPHABET INC CLASS C (GOOG) 2.0% 2.2% +0.2 pts +105K sh +10%
Reduced ILLUMINA INC (ILMN) 1.1% 0.8% −0.3 pts −114K sh −20%
Reduced VULCAN MATERIALS CO (VMC) 3.4% 3.6% +0.2 pts −52,781 sh −5%
Increased WORKIVA INC (WK) 0.7% 0.7% 0.0 pts +162K sh +33%
Reduced WASTE CONNECTIONS INC (WCN) 3.2% 3.2% 0.0 pts −78,499 sh −5%
New CSW INDUSTRIALS INC (CSWI) — 0.2% +0.2 pts +52,582 sh new
Reduced KINSALE CAPITAL GROUP INC. (KNSL) 1.0% 1.4% +0.3 pts −22,341 sh −10%
Increased BIO-TECHNE CORP (TECH) 3.3% 2.9% −0.4 pts +156K sh +5%
Reduced BLACKLINE INC (BL) 0.6% 0.4% −0.1 pts −148K sh −21%
Increased HEICO CORP CL A (HEIA) 2.7% 2.8% +0.1 pts +60,431 sh +4%
Reduced REPLIGEN CORPORATION (RGEN) 1.2% 1.0% −0.2 pts −46,475 sh −10%
Increased APPFOLIO, INC (APPF) 0.8% 1.2% +0.3 pts +31,855 sh +9%
Reduced ECOLAB INC (ECL) 3.0% 3.1% +0.1 pts −29,544 sh −3%
Increased MARKEL GROUP INC (MKL) 2.1% 2.2% 0.0 pts +4,000 sh +4%
Reduced VERISK ANALYTICS INC (VRSK) 1.1% 0.9% −0.2 pts −24,859 sh −7%
Reduced QUALCOMM INC (QCOM) 0.7% 0.7% 0.0 pts −34,305 sh −9%
New MCEWEN MNG INC COM (MUX) — 0.1% +0.1 pts +585K sh new
Reduced TRANSDIGM GROUP INC (TDG) 3.2% 3.5% +0.3 pts −4,558 sh −2%
Reduced AMERICAN TOWER CORP (AMT) 0.8% 0.6% −0.2 pts −26,766 sh −9%
Reduced INTUITIVE SURGICAL INC (ISRG) 2.8% 3.0% +0.2 pts −12,035 sh −2%
Increased CASELLA WASTE SYSTEMS INC CL A (CWST) 0.1% 0.2% +0.1 pts +48,000 sh +58%
Reduced CBRE GROUP INC (CBRE) 2.8% 2.6% −0.2 pts −46,785 sh −2%
Reduced CARMAX INC (KMX) 1.6% 1.6% 0.0 pts −49,199 sh −3%
Increased J P MORGAN CHASE & CO (JPM) 0.1% 0.1% +0.1 pts +21,266 sh +83%
Increased BERKSHIRE HATHAWAY INC DELAWA (BRK-A) 0.1% 0.1% +0.1 pts +6 sh +86%
Increased ZOETIS INC (ZTS) 0.5% 0.5% −0.1 pts +21,475 sh +10%
Reduced WD-40 COMPANY (WDFC) 0.2% 0.1% 0.0 pts −14,188 sh −24%
Reduced BRIGHT HORIZONS FAM SOL IN DEL (BFAM) 0.1% 0.1% 0.0 pts −31,206 sh −27%
Reduced UTZ BRANDS INC. (UTZ) 0.8% 0.8% 0.0 pts −189K sh −5%
Reduced MOODYS CORP (MCO) 2.8% 2.6% −0.2 pts −8,428 sh −2%
Reduced COSTAR GROUP INC (CSGP) 2.3% 2.3% 0.0 pts −29,660 sh −2%
Increased MASTERCARD INC-CLASS A (MA) 2.4% 2.6% +0.1 pts +5,816 sh +1%
Exited HALLIBURTON CO HLDG (HAL) 0.0% — 0.0 pts −70,430 sh −100%
Reduced ATLASSIAN CORPORATION CL A (TEAM) 0.8% 0.6% −0.2 pts −13,476 sh −5%
Reduced OLD DOMINION FGHT LINES INC CO (ODFL) 2.1% 2.1% 0.0 pts −11,600 sh −1%
Reduced ENDAVA plc (DAVA) 0.8% 0.3% −0.5 pts −61,024 sh −8%
Reduced GUIDEWIRE SOFTWARE INC (GWRE) 2.2% 2.2% −0.1 pts −18,023 sh −1%
Reduced VISA INC CL A (V) 3.0% 2.9% −0.1 pts −7,433 sh −1%
Reduced FLOOR & DECOR HOLDINGS, INC. (FND) 0.8% 0.9% 0.0 pts −13,532 sh −2%
New VANECK VECTORS OIL SVCS (OIH) — 0.0% 0.0 pts +5,100 sh new

The 50 largest of 242 changes, by size of the trade. Full holdings for this quarter.

Reported by the fund in its Form 13F filed with the SEC; holdings are as of the quarter-end report date and may have changed since. For informational purposes only — not investment advice or a recommendation to buy or sell any security. FilingExplorer is not affiliated with or endorsed by this fund. How this brief is compiled

† Security identifier (CUSIP) changed — read as one continuing position, not an exit and a new position:

  • WNS HOLDINGS LTD (WNS): 92932M101 → G98196101, 1.21M → 1.3M shares (share count changed with the identifier; not shown as a trade)

Top 10 positions — 30.6% of the equity book

Changes in the top 10 this quarter: HEIA entered · MCO left

# Security Weight before Weight now
1 VULCAN MATERIALS CO (VMC) 3.4% 3.6%
2 TRANSDIGM GROUP INC (TDG) 3.2% 3.5%
3 WASTE CONNECTIONS INC (WCN) 3.2% 3.2%
4 ECOLAB INC (ECL) 3.0% 3.1%
5 INTUITIVE SURGICAL INC (ISRG) 2.8% 3.0%
6 VISA INC CL A (V) 3.0% 2.9%
7 BIO-TECHNE CORP (TECH) 3.3% 2.9%
8 ANSYS INC (ANSS) 3.6% 2.9%
9 HEICO CORP CL A (HEIA) 2.7% 2.8% Entered the top 10
10 FASTENAL CO (FAST) 3.0% 2.7%
— MOODYS CORP (MCO) 2.8% 2.6% Left the top 10

Weights are each position's reported value as a share of the fund's reported equity positions (options and principal-amount holdings excluded).