DF DENT & CO INC

CIK

934999

Location

BALTIMORE, MD

Portfolio Value

Mid $2,745,473,612

Diversification

Diversified

Filing Date

Global Rank

#1,110 / 8,700 ▼ 346

Top Industry

Aerospace & Defense 13.2%

Period ended 2 months ago

Filed Aug 14, 2026 · 30d

26 quarters · since Mar 2020

Portfolio Concentration

139 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

6.6%

+2.2 pts

Top 5

28.0%

+11.0 pts

Top 10

47.7%

+17.5 pts

HHI

308

Diversified+138

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	29.8%	$816,788,489	29
Industrials	25.0%	$685,274,086	27
Healthcare	11.8%	$324,093,979	19
Basic Materials	11.7%	$321,431,581	10
Financial Services	9.8%	$267,918,056	19
Consumer Cyclical	8.9%	$244,420,175	12
Energy	1.8%	$49,546,475	6
Consumer Defensive	1.0%	$26,195,032	9
Unclassified	0.3%	$8,277,355	5
Communication Services	0.0%	$887,617	1
Utilities	0.0%	$640,767	2

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
HLNE	Hamilton Lane INC	+319,305	476,169	$37,536,402
MP	MP Materials Corp. / DE	+137,333	153,920	$8,621,059
CWST	Casella Waste Systems Inc	+118,685	446,270	$43,274,801
FND	Floor & Decor Holdings, Inc.	+112,498	750,501	$44,549,739
TSM	Taiwan Semiconductor Manufacturing Co Ltd	+105,316	106,282	$50,757,094
SYK	Stryker Corp	+87,066	121,896	$38,377,736
ABT	Abbott Laboratories	+77,907	103,114	$9,356,564
BAC	Bank Of America Corp /De/	+75,000	82,613	$4,707,288
LB	LandBridge Co LLC	+69,729	567,536	$44,971,552
WING	Wingstop Inc.	+60,433	83,931	$14,554,474
JNJ	Johnson & Johnson	+38,454	92,077	$23,384,795
HAYW	Hayward Holdings, Inc.	+38,373	2,192,729	$37,956,138
MSI	Motorola Solutions, Inc.	+27,628	156,051	$64,806,419
APH	Amphenol Corp /De/	+13,007	226,067	$79,720,266
KLAC	Kla Corp	+5,454	6,060	$1,828,362
DSGX	Descartes Systems Group Inc	+5,204	188,682	$13,064,341
MORN	Morningstar, Inc.	+4,003	106,374	$16,596,471
TEAM	Atlassian Corp	+2,611	113,108	$8,798,671
FSS	Federal Signal Corp /De/	+2,150	213,990	$27,495,575
PDFS	Pdf Solutions Inc	+1,991	354,951	$25,126,981
LMAT	Lemaitre Vascular Inc	+1,712	167,053	$16,030,405
MTD	Mettler Toledo International Inc/	+1,601	21,280	$27,185,412
MDLZ	Mondelez International, Inc.	+1,323	16,180	$935,851
RMBS	Rambus Inc	+906	102,771	$13,641,822
LOW	Lowes Companies Inc	+792	17,891	$3,944,786
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
CPRT	Copart Inc	−281,925	902,063	$25,429,155
MANH	Manhattan Associates Inc	−199,991	188,634	$26,267,284
VEEV	Veeva Systems Inc	−126,730	334,373	$59,341,176
WST	West Pharmaceutical Services Inc	−116,045	4,552	$1,634,168
ALRM	Alarm.com Holdings, Inc.	−112,593	187,384	$8,754,580
AMZN	Amazon Com Inc	−103,689	692,739	$165,107,413
TYL	Tyler Technologies Inc	−98,873	70,804	$20,707,337
MCHP	Microchip Technology Inc	−92,351	138,033	$12,588,609
FAST	Fastenal Co	−89,887	2,577,410	$123,793,002
HEI	Heico Corp	−77,842	699,176	$180,324,482
DHR	Danaher Corp /De/	−62,394	368,898	$70,267,691
BAH	Booz Allen Hamilton Holding Corp	−57,024	203,498	$12,346,223
SHW	Sherwin Williams Co	−53,815	52,171	$17,963,518
VMC	Vulcan Materials CO	−53,401	490,212	$144,617,442
ECL	Ecolab Inc.	−50,851	467,771	$130,325,678
TMO	Thermo Fisher Scientific Inc.	−48,677	45,263	$22,693,057
AAPL	Apple Inc.	−36,582	197,541	$57,160,463
MSFT	Microsoft Corp	−32,951	260,499	$97,171,336
CDNS	Cadence Design Systems Inc	−28,762	259,282	$97,313,720
QCOM	Qualcomm Inc/De	−27,872	183,258	$33,864,245
MCO	Moodys Corp /De/	−25,974	269,427	$122,028,876
BRO	Brown & Brown, Inc.	−17,978	214,820	$13,780,703
VB	Vanguard Morningstar Small-Cap ETF	−17,427	1,562	$473,473
VEU	Vanguard FTSE All-World Ex-US ETF	−17,035	59,879	$5,014,866
MPWR	Monolithic Power Systems, Inc.	−15,595	72,954	$100,848,691
No positions match the current search.

New Positions

Positions the filer opened this quarter

6 positions

Ticker	Company	Shares	Value
MRCY	Mercury Systems Inc	113,611	$13,898,033
UPS	United Parcel Service Inc	19,860	$2,134,950
MTDR	Matador Resources Co	23,550	$1,172,319
CTAS	Cintas Corp	2,514	$427,581
LRCX	Lam Research Corp	850	$368,330
CVS	CVS HEALTH Corp	2,601	$269,073
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
GOOGL	Alphabet Inc.	793,558	$227,665,765
V	Visa Inc.	618,044	$186,797,618
MA	Mastercard Inc	287,119	$143,461,879
WCN	Waste Connections, Inc.	859,515	$139,619,616
ISRG	Intuitive Surgical Inc	275,313	$126,916,539
TECH	BIO-TECHNE Corp	2,043,047	$106,769,636
PRM	Perimeter Solutions, Inc.	3,932,371	$96,028,499
GWRE	Guidewire Software, Inc.	618,275	$92,469,209
CBRE	Cbre Group, Inc.	657,510	$89,066,304
KNSL	Kinsale Capital Group, Inc.	248,937	$85,051,815
ASML	Asml Holding NV	60,467	$79,866,627
MSCI	MSCI Inc.	121,442	$65,458,452
SPGI	S&P Global Inc.	152,338	$64,795,440
CSGP	Costar Group, Inc.	1,605,157	$64,752,033
AVGO	Broadcom Inc.	195,462	$60,497,443
UBER	Uber Technologies, Inc	755,581	$54,348,941
NFLX	Netflix Inc	529,849	$50,944,981
APPF	Appfolio Inc	320,512	$50,583,203
PCOR	Procore Technologies, Inc.	860,181	$49,030,317
VLTO	Veralto Corp	528,258	$46,708,572
NOVT	Novanta Inc	386,877	$45,694,042
ORLY	O Reilly Automotive Inc	471,882	$43,559,427
RBC	RBC Bearings INC	73,409	$39,869,896
NOW	ServiceNow, Inc.	349,563	$36,546,811
MEDP	Medpace Holdings, Inc.	74,810	$35,923,013
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

139 tracked positions · $2,745,473,612 total · filing declares 271 positions · $5,271,504,691 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology Utilities

Showing 1–50 of 139 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
HEI	Heico Corp Industrials	Reduced	699,176	-77,842	$180,324,482	+9.9%	6.57%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	692,739	-103,689	$165,107,413	−0.5%	6.01%
TDG	TransDigm Group INC Industrials	Reduced	111,941	-10,812	$149,109,889	+4.8%	5.43%
VMC	Vulcan Materials CO Basic Materials	Reduced	490,212	-53,401	$144,617,442	−2.3%	5.27%
ECL	Ecolab Inc. Basic Materials	Reduced	467,771	-50,851	$130,325,678	−5.5%	4.75%
FAST	Fastenal Co Industrials	Reduced	2,577,410	-89,887	$123,793,002	+0.0%	4.51%
MCO	Moodys Corp /De/ Financial Services	Reduced	269,427	-25,974	$122,028,876	−5.3%	4.44%
MPWR	Monolithic Power Systems, Inc. Technology	Reduced	72,954	-15,595	$100,848,691	+4.2%	3.67%
CDNS	Cadence Design Systems Inc Technology	Reduced	259,282	-28,762	$97,313,720	+21.6%	3.54%
MSFT	Microsoft Corp Technology	Reduced	260,499	-32,951	$97,171,336	−10.5%	3.54%
APH	Amphenol Corp /De/ Technology	Added	226,067	+13,007	$79,720,266	+48.1%	2.90%
DHR	Danaher Corp /De/ Healthcare	Reduced	368,898	-62,394	$70,267,691	−14.1%	2.56%
MSI	Motorola Solutions, Inc. Technology	Added	156,051	+27,628	$64,806,419	+16.3%	2.36%
VEEV	Veeva Systems Inc Healthcare	Reduced	334,373	-126,730	$59,341,176	−26.7%	2.16%
AAPL	Apple Inc. Technology	Reduced	197,541	-36,582	$57,160,463	−3.8%	2.08%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	Added	106,282	+105,316	$50,757,094	+15447.8%	1.85%
RGEN	Repligen Corp Healthcare	Reduced	356,854	-8,261	$48,689,159	+13.2%	1.77%
MKL	Markel Group Inc. Financial Services	Reduced	24,038	-2,498	$46,946,454	−7.6%	1.71%
LB	LandBridge Co LLC Energy	Added	567,536	+69,729	$44,971,552	+30.8%	1.64%
FND	Floor & Decor Holdings, Inc. Consumer Cyclical	Added	750,501	+112,498	$44,549,739	+37.5%	1.62%
CWST	Casella Waste Systems Inc Industrials	Added	446,270	+118,685	$43,274,801	+66.5%	1.58%
SYK	Stryker Corp Healthcare	Added	121,896	+87,066	$38,377,736	+235.3%	1.40%
HAYW	Hayward Holdings, Inc. Industrials	Added	2,192,729	+38,373	$37,956,138	+31.7%	1.38%
HLNE	Hamilton Lane INC Financial Services	Added	476,169	+319,305	$37,536,402	+140.7%	1.37%
ONTO	Onto Innovation Inc. Technology	Added	93,905	+324	$35,538,347	+85.2%	1.29%
QCOM	Qualcomm Inc/De Technology	Reduced	183,258	-27,872	$33,864,245	+24.5%	1.23%
FSS	Federal Signal Corp /De/ Industrials	Added	213,990	+2,150	$27,495,575	+20.0%	1.00%
MTD	Mettler Toledo International Inc/ Healthcare	Added	21,280	+1,601	$27,185,412	+9.5%	0.99%
CSW	Csw Industrials, Inc. Industrials	Added	97,020	+458	$27,000,666	+7.3%	0.98%
MANH	Manhattan Associates Inc Technology	Reduced	188,634	-199,991	$26,267,284	−49.2%	0.96%
CPRT	Copart Inc Industrials	Reduced	902,063	-281,925	$25,429,155	−35.3%	0.93%
PDFS	Pdf Solutions Inc Technology	Added	354,951	+1,991	$25,126,981	+117.6%	0.92%
JNJ	Johnson & Johnson Healthcare	Added	92,077	+38,454	$23,384,795	+78.4%	0.85%
TMO	Thermo Fisher Scientific Inc. Healthcare	Reduced	45,263	-48,677	$22,693,057	−50.9%	0.83%
ESE	Esco Technologies Inc Technology	Reduced	63,005	-10,137	$22,054,270	+7.2%	0.80%
BMI	Badger Meter Inc Technology	Reduced	143,925	-6,944	$21,355,591	−7.1%	0.78%
TYL	Tyler Technologies Inc Technology	Reduced	70,804	-98,873	$20,707,337	−64.4%	0.75%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	19,722	-928	$18,848,886	+1.8%	0.69%
SHW	Sherwin Williams Co Basic Materials	Reduced	52,171	-53,815	$17,963,518	−47.1%	0.65%
PG	PROCTER & GAMBLE Co Consumer Defensive	Reduced	121,751	-7,781	$17,853,566	−4.6%	0.65%
VSEC	Vse Corp Industrials	Added	77,573	+330	$17,725,430	+24.4%	0.65%
MORN	Morningstar, Inc. Financial Services	Added	106,374	+4,003	$16,596,471	−4.1%	0.60%
LMAT	Lemaitre Vascular Inc Healthcare	Added	167,053	+1,712	$16,030,405	−11.2%	0.58%
WING	Wingstop Inc. Consumer Cyclical	Added	83,931	+60,433	$14,554,474	+299.7%	0.53%
SSD	Simpson Manufacturing Co., Inc. Basic Materials	Added	69,301	+634	$14,508,164	+23.1%	0.53%
MRCY	Mercury Systems Inc Industrials	NEW	113,611	NEW	$13,898,033	NEW	0.51%
BRO	Brown & Brown, Inc. Financial Services	Reduced	214,820	-17,978	$13,780,703	−9.2%	0.50%
RMBS	Rambus Inc Technology	Added	102,771	+906	$13,641,822	+55.7%	0.50%
DSGX	Descartes Systems Group Inc Technology	Added	188,682	+5,204	$13,064,341	−0.5%	0.48%
MCHP	Microchip Technology Inc Technology	Reduced	138,033	-92,351	$12,588,609	−15.4%	0.46%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.