13F holdings
DF DENT & CO INC portfolio
Managed by . 262 reported positions worth $5.2B as of 2026-03-31, filed with the SEC on 2026-05-15. Parsed from the filing itself, not a reseller.
$5.2B
Book value
262
Positions
30%
Top 10 weight
+19
New this quarter
-20
Exited
134 days
Age today
How old this actually is
Every position on this page is a snapshot of 2026-03-31. It was already 45 days old on 2026-05-15, the day it first became public. Today it is 134 days old.
That lag is the law, not a service level — Rule 13f-1 gives managers 45 days after quarter end to file, and no product can shorten it. A fund can have sold every share below before you read this sentence. Treat it as a record of what happened, never as a position you can follow.
What changed
Positions opened and closed
Against its 2025-12-31 filing. This is the part worth reading — the holdings table below is mostly years old.
New positions (19)
| Ticker | Issuer | Value | Shares | % of book |
|---|---|---|---|---|
| SAIA | SAIA INC | $22.8M | 64,817 | 0.44% |
| VSEC | VSE CORP | $14.2M | 77,243 | 0.27% |
| PDFS | PDF SOLUTIONS INC | $11.5M | 352,960 | 0.22% |
| WRBY | WARBY PARKER INC CL A | $11.1M | 528,128 | 0.21% |
| RMBS | RAMBUS INC | $8.8M | 101,865 | 0.17% |
| WING | WINGSTOP INC. | $3.6M | 23,498 | 0.07% |
| BHP | BHP GROUP LTD ADR | $1.3M | 17,511 | 0.02% |
| WSM | WILLIAMS SONOMA INC COM | $1.0M | 5,667 | 0.02% |
| KLAC | KLA CORPORATION | $892,280 | 606 | 0.02% |
| PGR | PROGRESSIVE CORPORATION | $739,237 | 3,729 | 0.01% |
| WSO/B | WATSCO CLASS B | $448,586 | 1,245 | 0.01% |
| BA | BOEING CO | $433,487 | 2,178 | 0.01% |
| GS | GOLDMAN SACHS GROUP | $428,071 | 506 | 0.01% |
| LII | LENNOX INTERNATIONAL INC. | $373,161 | 804 | 0.01% |
| NEM | NEWMONT GOLDCORP CORP | $314,791 | 2,908 | 0.01% |
| BMY | BRISTOL-MYERS SQUIBB | $309,921 | 5,110 | 0.01% |
| ALSN | ALLISON TRANSMISSION HLDGS INC | $270,174 | 2,308 | 0.01% |
| OTIS | OTIS WORLDWIDE ORD SHS | $243,958 | 3,165 | 0.00% |
| AMLP | ALPS ALERIAN MLP ETF | $200,506 | 3,809 | 0.00% |
Closed out (20)
| Ticker | Issuer | Was worth | Shares | % of book |
|---|---|---|---|---|
| MASI* | MASIMO CORP COM | $18.6M | 142,626 | 0.00% |
| SPSC | SPS COMMERCE INC | $18.1M | 202,771 | 0.00% |
| TTAN | SERVICETITAN INC CL A | $9.5M | 89,575 | 0.00% |
| JBTM | JBT MAREL CORPORATION COM | $5.7M | 37,883 | 0.00% |
| IWP | ISHARES RUSSELL MIDCAP GROWTH | $3.9M | 28,433 | 0.00% |
| IWO | ISHARES RUSSELL 2000 GROWTH IN | $2.1M | 6,534 | 0.00% |
| IVV | ISHARES CORE S&P 500 ETF | $1.4M | 1,998 | 0.00% |
| IJR | ISHARES CORE S&P SMALL CAP ETF | $1.0M | 8,436 | 0.00% |
| IJH | ISHARES CORE S&P MID CAP ETF | $643,500 | 9,750 | 0.00% |
| SPMO | INVESCO S&P 500 MOMENTUM ETF | $581,285 | 4,872 | 0.00% |
| FICO | FAIR ISAAC CORP | $309,383 | 183 | 0.00% |
| PTON | PELOTON INTERACTIVE INC CL A C | $283,976 | 46,100 | 0.00% |
| DVY | ISHARES TR SELECT DIVID ETF | $240,644 | 1,705 | 0.00% |
| UNP | UNION PACIFIC CORP | $236,872 | 1,024 | 0.00% |
| BL | BLACKLINE INC | $236,088 | 4,270 | 0.00% |
| IWM | ISHARES RUSSELL 2000 ETF | $227,206 | 923 | 0.00% |
| O | REALTY INCM CRP MD PV$1.REIT | $214,939 | 3,813 | 0.00% |
| RSG | REPUBLIC SVCS INC | $208,963 | 986 | 0.00% |
| CVS | CVS HEALTH CORP | $206,415 | 2,601 | 0.00% |
| CEG | CONSTELLATION ENERGY CORP COM | $203,484 | 576 | 0.00% |
Added to (40)
| Ticker | Issuer | Value | Shares | % of book | Shares Δ |
|---|---|---|---|---|---|
| PRM | PERIMETER SOLUTIONS INC | $96.0M | 3,932,371 | 1.84% | +55% |
| GWRE | GUIDEWIRE SOFTWARE INC | $92.5M | 618,275 | 1.77% | +37% |
| MSCI | MSCI INC COM | $65.5M | 121,442 | 1.25% | +2% |
| AVGO | BROADCOM INC | $60.5M | 195,462 | 1.16% | +12650% |
| MSI | MOTOROLA SOLUTIONS INC. | $55.7M | 128,423 | 1.07% | +41% |
| NFLX | NETFLIX INC | $50.9M | 529,849 | 0.98% | +44% |
| CPRT | COPART INC COM | $39.3M | 1,183,988 | 0.75% | +1% |
| MEDP | MEDPACE HOLDINGS, INC. | $35.9M | 74,810 | 0.69% | +37% |
| LB | LANDBRIDGE COMPANY LLC CL A | $34.4M | 497,807 | 0.66% | +13% |
| APH | AMPHENOL CORP NEW CL A | $26.9M | 213,060 | 0.52% | +627% |
| CSW | CSW INDUSTRIALS INC | $25.2M | 96,562 | 0.48% | +5% |
| BMI | BADGER METER INC COM | $23.0M | 150,869 | 0.44% | +24% |
| FSS | FEDERAL SIGNAL CORP | $22.9M | 211,840 | 0.44% | +6% |
| ENSG | ENSIGN GROUP INC COM | $12.9M | 64,184 | 0.25% | +18% |
| SYK | STRYKER CORP | $11.4M | 34,830 | 0.22% | +537% |
Trimmed (147)
| Ticker | Issuer | Value | Shares | % of book | Shares Δ |
|---|---|---|---|---|---|
| INTU | INTUIT INC. | $3.3M | 7,697 | 0.06% | -91% |
| EOG | EOG RES INC COM | $361,280 | 2,499 | 0.01% | -70% |
| LVMUY | LVMH MOET HENNESSY LOU VUITTON | $536,696 | 4,913 | 0.01% | -63% |
| WST | WEST PHARMACEUTICALS, INC. | $30.2M | 120,597 | 0.58% | -62% |
| HUBB | HUBBELL INC | $495,157 | 1,009 | 0.01% | -60% |
| TRNO | TERRENO REALTY CORP | $1.0M | 16,552 | 0.02% | -59% |
| LIN | LINDE PLC SHS | $747,606 | 1,508 | 0.01% | -57% |
| NXPI | NXP SEMICONDUCTORS | $415,571 | 2,111 | 0.01% | -57% |
| NEE | NEXTERA ENERGY INC SHS | $1.0M | 11,276 | 0.02% | -55% |
| BAC | BANK AMER CORP COM | $371,134 | 7,613 | 0.01% | -55% |
| PLOW | DOUGLAS DYNAMICS INC | $10.4M | 246,325 | 0.20% | -54% |
| VLTO | VERALTO CORP | $46.7M | 528,258 | 0.89% | -54% |
| MCK | McKESSON CORP | $500,178 | 578 | 0.01% | -53% |
| ENTG | ENTEGRIS INC | $16.7M | 142,363 | 0.32% | -52% |
| MRSH | MARSH COM | $488,435 | 2,816 | 0.01% | -51% |
The book
Largest 150 of 262 holdings
| Ticker | Issuer | Value | Shares | % of book | Shares Δ |
|---|---|---|---|---|---|
| GOOG | ALPHABET INC CL C | $217.1M | 756,817 | 4.16% | — |
| V | VISA INC CL A | $186.8M | 618,044 | 3.58% | — |
| AMZN | AMAZON.COM INC | $165.9M | 796,428 | 3.18% | — |
| HEI/A | HEICO CORP CL A | $164.0M | 777,018 | 3.14% | — |
| VMC | VULCAN MATERIALS CO | $148.0M | 543,613 | 2.83% | — |
| MA | MASTERCARD INC CL A | $143.5M | 287,119 | 2.75% | — |
| TDG | TRANSDIGM GROUP INC | $142.3M | 122,753 | 2.72% | — |
| WCN | WASTE CONNECTIONS INC | $139.6M | 859,515 | 2.67% | — |
| ECL | ECOLAB INC | $138.0M | 518,622 | 2.64% | — |
| MCO | MOODYS CORP | $128.9M | 295,401 | 2.47% | — |
| ISRG | INTUITIVE SURGICAL INC | $126.9M | 275,313 | 2.43% | — |
| FAST | FASTENAL CO | $123.8M | 2,667,297 | 2.37% | — |
| MSFT | MICROSOFT CORP | $108.6M | 293,450 | 2.08% | — |
| TECH | BIO-TECHNE CORP | $106.8M | 2,043,047 | 2.04% | — |
| MPWR | MONOLITHIC PWR SYS INC COM | $96.8M | 88,549 | 1.85% | — |
| PRM | PERIMETER SOLUTIONS INC | $96.0M | 3,932,371 | 1.84% | — |
| GWRE | GUIDEWIRE SOFTWARE INC | $92.5M | 618,275 | 1.77% | — |
| CBRE | CBRE GROUP INC | $89.1M | 657,510 | 1.71% | — |
| KNSL | KINSALE CAPITAL GROUP INC. | $85.1M | 248,937 | 1.63% | — |
| DHR | DANAHER CORP | $81.8M | 431,292 | 1.57% | — |
| VEEV | VEEVA SYSTEMS, INC. | $81.0M | 461,103 | 1.55% | — |
| CDNS | CADENCE DESIGN SYSTEMS INC. | $80.0M | 288,044 | 1.53% | — |
| ASML | ASML HOLDINGS N.V. | $79.9M | 60,467 | 1.53% | — |
| MSCI | MSCI INC COM | $65.5M | 121,442 | 1.25% | — |
| SPGI | S & P GLOBAL INC | $64.8M | 152,338 | 1.24% | — |
| CSGP | COSTAR GROUP INC | $64.8M | 1,605,157 | 1.24% | — |
| AVGO | BROADCOM INC | $60.5M | 195,462 | 1.16% | — |
| AAPL | APPLE INC | $59.4M | 234,123 | 1.14% | — |
| TYL | TYLER TECHNOLOGIES INC | $58.1M | 169,677 | 1.11% | — |
| MSI | MOTOROLA SOLUTIONS INC. | $55.7M | 128,423 | 1.07% | — |
| UBER | UBER TECHNOLOGIES, INC. | $54.3M | 755,581 | 1.04% | — |
| MANH | MANHATTAN ASSOCS INC COM | $51.7M | 388,625 | 0.99% | — |
| NFLX | NETFLIX INC | $50.9M | 529,849 | 0.98% | — |
| MKL | MARKEL GROUP INC | $50.8M | 26,536 | 0.97% | — |
| APPF | APPFOLIO, INC | $50.6M | 320,512 | 0.97% | — |
| PCOR | PROCORE TECHNOLOGIES INC | $49.0M | 860,181 | 0.94% | — |
| VLTO | VERALTO CORP | $46.7M | 528,258 | 0.89% | — |
| TMO | THERMO FISHER SCIENTIFIC INC | $46.2M | 93,940 | 0.88% | — |
| NOVT | NOVANTA INC COM NPV | $45.7M | 386,877 | 0.88% | — |
| ORLY | O REILLY AUTOMOTIVE | $43.6M | 471,882 | 0.83% | — |
| RGEN | REPLIGEN CORPORATION | $43.0M | 365,115 | 0.82% | — |
| RBC | RBC BEARINGS INC | $39.9M | 73,409 | 0.76% | — |
| CPRT | COPART INC COM | $39.3M | 1,183,988 | 0.75% | — |
| NOW | SERVICENOW INC | $36.5M | 349,563 | 0.70% | — |
| MEDP | MEDPACE HOLDINGS, INC. | $35.9M | 74,810 | 0.69% | — |
| LB | LANDBRIDGE COMPANY LLC CL A | $34.4M | 497,807 | 0.66% | — |
| SHW | SHERWIN-WILLIAMS CO | $34.0M | 105,986 | 0.65% | — |
| GSHD | GOOSEHEAD INSURANCE, INC. | $33.4M | 783,615 | 0.64% | — |
| ODFL | OLD DOMINION FGHT LINES INC CO | $32.9M | 168,508 | 0.63% | — |
| FND | FLOOR & DECOR HOLDINGS, INC. | $32.4M | 638,003 | 0.62% | — |
| SITE | SITEONE LANDSCAPE SUPPLY, INC. | $31.4M | 236,148 | 0.60% | — |
| WST | WEST PHARMACEUTICALS, INC. | $30.2M | 120,597 | 0.58% | — |
| HAYW | HAYWARD HOLDINGS INC | $28.8M | 2,154,356 | 0.55% | — |
| QCOM | QUALCOMM INC | $27.2M | 211,130 | 0.52% | — |
| APH | AMPHENOL CORP NEW CL A | $26.9M | 213,060 | 0.52% | — |
| CWST | CASELLA WASTE SYSTEMS INC CL A | $26.0M | 327,585 | 0.50% | — |
| PTC | PTC INC | $25.7M | 180,589 | 0.49% | — |
| CSW | CSW INDUSTRIALS INC | $25.2M | 96,562 | 0.48% | — |
| MTD | METTLER TOLEDO INTL | $24.8M | 19,679 | 0.48% | — |
| AIT | APPLIED INDL TECHNOLOGIES INC | $23.9M | 90,256 | 0.46% | — |
| CNM | CORE & MAIN INC CL A | $23.4M | 474,350 | 0.45% | — |
| BMI | BADGER METER INC COM | $23.0M | 150,869 | 0.44% | — |
| FSS | FEDERAL SIGNAL CORP | $22.9M | 211,840 | 0.44% | — |
| SAIA | SAIA INC | $22.8M | 64,817 | 0.44% | — |
| AMT | AMERICAN TOWER CORP | $22.8M | 131,882 | 0.44% | — |
| IDXX | IDEXX LABS INC | $22.5M | 40,023 | 0.43% | — |
| CRWD | CROWDSTRIKE HOLDINGS, INC. | $21.9M | 55,996 | 0.42% | — |
| ESE | ESCO TECHNOLOGIES INC | $20.6M | 73,142 | 0.39% | — |
| VRSK | VERISK ANALYTICS INC | $20.4M | 107,267 | 0.39% | — |
| BAH | BOOZ ALLEN HAMILTON HOLDING CO | $20.3M | 260,522 | 0.39% | — |
| ONTO | ONTO INNOVATION INC | $19.2M | 93,581 | 0.37% | — |
| PG | PROCTER & GAMBLE CO | $18.7M | 129,532 | 0.36% | — |
| LMAT | LEMAITRE VASCULAR | $18.1M | 165,341 | 0.35% | — |
| MORN | MORNINGSTAR INC | $17.3M | 102,371 | 0.33% | — |
| ENTG | ENTEGRIS INC | $16.7M | 142,363 | 0.32% | — |
| HLNE | HAMILTON LANE INC | $15.6M | 156,864 | 0.30% | — |
| BRO | BROWN & BROWN | $15.2M | 232,798 | 0.29% | — |
| MCHP | MICROCHIP TECH INC | $14.9M | 230,384 | 0.29% | — |
| COST | COSTCO WHOLESALE CO | $14.5M | 14,536 | 0.28% | — |
| VSEC | VSE CORP | $14.2M | 77,243 | 0.27% | — |
| EXP | EAGLE MATERIALS INC | $14.2M | 74,711 | 0.27% | — |
| KAI | KADANT INC | $13.6M | 46,393 | 0.26% | — |
| AGYS | AGILYSYS INC | $13.2M | 184,925 | 0.25% | — |
| DSGX | THE DESCARTES SYSTEMS GROUP IN | $13.1M | 183,478 | 0.25% | — |
| JNJ | JOHNSON & JOHNSON | $13.1M | 53,623 | 0.25% | — |
| ALRM | ALARM.COM | $13.0M | 299,977 | 0.25% | — |
| ENSG | ENSIGN GROUP INC COM | $12.9M | 64,184 | 0.25% | — |
| ROP | ROPER TECHNOLOGIES INC | $12.6M | 35,563 | 0.24% | — |
| SSD | SIMPSON MANUFACTURING CO | $11.8M | 68,667 | 0.23% | — |
| PDFS | PDF SOLUTIONS INC | $11.5M | 352,960 | 0.22% | — |
| SYK | STRYKER CORP | $11.4M | 34,830 | 0.22% | — |
| MUSA | MURPHY USA INC COM | $11.4M | 22,997 | 0.22% | — |
| HQY | HEALTHEQUITY, INC. | $11.2M | 133,782 | 0.21% | — |
| WRBY | WARBY PARKER INC CL A | $11.1M | 528,128 | 0.21% | — |
| GOOGL | ALPHABET INC. CLASS A | $10.6M | 36,741 | 0.20% | — |
| UTZ | UTZ BRANDS INC. | $10.5M | 1,325,603 | 0.20% | — |
| SNPS | SYNOPSYS INC | $10.5M | 26,382 | 0.20% | — |
| PLOW | DOUGLAS DYNAMICS INC | $10.4M | 246,325 | 0.20% | — |
| BRK/B | BERKSHIRE HATHAWAY INC CL B | $9.9M | 20,638 | 0.19% | — |
| RMBS | RAMBUS INC | $8.8M | 101,865 | 0.17% | — |
| JPM | J P MORGAN CHASE & CO | $8.7M | 29,669 | 0.17% | — |
| BRK/A | BERKSHIRE HATHAWAY INC DELAWA | $8.6M | 12 | 0.17% | — |
| VOO | VANGUARD S&P 500 ETF | $8.6M | 14,316 | 0.16% | — |
| WSO | WATSCO INC | $8.3M | 22,836 | 0.16% | — |
| TEAM | ATLASSIAN CORPORATION CL A | $7.5M | 110,497 | 0.14% | — |
| EXPO | EXPONENT INC | $7.5M | 114,920 | 0.14% | — |
| MKTX | MARKETAXESS HLDGS INC COM | $6.8M | 41,000 | 0.13% | — |
| COF | CAPITAL ONE FINL CORP COM | $5.9M | 32,367 | 0.11% | — |
| ABBV | ABBVIE INC SHS | $5.6M | 25,819 | 0.11% | — |
| TROW | T ROWE PRICE GROUP INC | $5.2M | 57,170 | 0.10% | — |
| VEU | VANGUARD FTSE ALL WORLD EX US | $4.3M | 57,018 | 0.08% | — |
| LOW | LOWE'S COMPANIES INC | $4.0M | 17,099 | 0.08% | — |
| CSCO | CISCO SYSTEMS INC | $3.9M | 50,469 | 0.07% | — |
| WING | WINGSTOP INC. | $3.6M | 23,498 | 0.07% | — |
| ADP | AUTO DATA PROCESSING | $3.5M | 17,232 | 0.07% | — |
| INTU | INTUIT INC. | $3.3M | 7,697 | 0.06% | — |
| HD | HOME DEPOT INC | $3.0M | 9,178 | 0.06% | — |
| CCJ | CAMECO CORP | $3.0M | 27,701 | 0.06% | — |
| LLY | LILLY ELI & CO | $2.9M | 3,100 | 0.05% | — |
| SHOP | SHOPIFY INC. | $2.8M | 23,770 | 0.05% | — |
| EQT | EQT CORP | $2.8M | 43,720 | 0.05% | — |
| KO | COCA COLA COM | $2.8M | 36,280 | 0.05% | — |
| MRK | MERCK & CO. INC. | $2.7M | 22,689 | 0.05% | — |
| PAYX | PAYCHEX INC | $2.7M | 29,233 | 0.05% | — |
| ABT | ABBOTT LABORATORIES | $2.6M | 25,207 | 0.05% | — |
| GWW | GRAINGER W W INC COM | $2.6M | 2,340 | 0.05% | — |
| FNV | FRANCO-NEVADA CORPORATION | $2.4M | 9,850 | 0.05% | — |
| RRC | RANGE RESOURCES CORP DEL | $2.4M | 53,760 | 0.05% | — |
| WAB | WABTEC | $2.4M | 9,643 | 0.05% | — |
| EFA | ISHARES MSCI EAFE ETF | $2.3M | 24,137 | 0.04% | — |
| WPM | WHEATON PRECIOUS METALS CORP | $2.3M | 17,450 | 0.04% | — |
| META | META PLATFORMS INC CL A | $2.2M | 3,836 | 0.04% | — |
| CCI | CROWN CASTLE INC | $2.2M | 26,636 | 0.04% | — |
| EXMOC | EXXON MOBIL CORP | $2.1M | 12,355 | 0.04% | — |
| PEP | PEPSICO INC | $2.0M | 12,863 | 0.04% | — |
| CVX | CHEVRON CORP | $1.8M | 8,487 | 0.03% | — |
| FISV | FISERV INC COM | $1.7M | 31,335 | 0.03% | — |
| ITW | ILLINOIS TOOL WORKS | $1.6M | 6,222 | 0.03% | — |
| DXCM | DEXCOM INC | $1.6M | 25,317 | 0.03% | — |
| AXP | AMERICAN EXPRESS CO | $1.6M | 5,253 | 0.03% | — |
| EW | EDWARDS LIFESCIENCES | $1.5M | 19,253 | 0.03% | — |
| CNI | CANADIAN NATL RAILWY F | $1.5M | 14,900 | 0.03% | — |
| ADI | ANALOG DEVICES INC | $1.5M | 4,751 | 0.03% | — |
| MCD | MC DONALDS CORP | $1.5M | 4,804 | 0.03% | — |
| CB | CHUBB LTD | $1.5M | 4,545 | 0.03% | — |
| VYM | VANGUARD HIGH DIVIDEND YIELD E | $1.5M | 9,913 | 0.03% | — |
| TSCO | TRACTOR SUPPLY COMP | $1.4M | 31,850 | 0.03% | — |
| TJX | TJX COMPANIES INC | $1.4M | 8,619 | 0.03% | — |
| NSC | NORFOLK SOUTHERN CO | $1.3M | 4,521 | 0.02% | — |
| EPD | ENTERPRISE PRODS PART LP | $1.3M | 34,232 | 0.02% | — |
This table is the 150 largest positions by value, out of 262 reported. The search box only searches what is on this page — a name absent from it may still be in the filing further down the book. The full info table is here.
Rows are aggregated by CUSIP — a manager files the same security multiple times when different internal desks hold it. Tickers link to our own backtest of that asset where we cover it.
Read the original
This page was built from one document: the 2026-03-31 Form 13F info table filed by DF DENT & CO INC (CIK 934999, accession 0000934999-26-000002). Every other 13F site is reading the same file.
If anything here disagrees with it, the filing wins — and we would want to know. All 13F filings by this manager
What a 13F cannot show you
A 13F is a long-only equity snapshot, and the holes in it are structural. Anyone selling you this data as "what the smart money is doing" is selling you one leg of a position:
- No short positions. None, ever. A fund shown here as bullish may be net short the same name through a book you cannot see.
- No cash, bonds, FX, commodities or non-US listings. A macro fund's entire thesis can be invisible.
- No intra-quarter round trips. Bought and sold inside the same quarter means it never appears at all.
- Options are notional, not ownership. We keep puts and calls in a separate bucket rather than adding their notional into a fund's book size, which is how a $2B fund gets reported as a $20B one.
- Confidential treatment. Managers can ask the SEC to withhold a position while they build it. Those holdings are legally absent from the filing, so a "new" position may be months old.
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