13F HOLDINGS REPORT
CARDEROCK CAPITAL MANAGEMENT INC
Quarter ended Q3 2025 · Filed October 17, 2025 · Accession 0001168889-25-000007
Total Value
$411.3M
Positions
72
Other Managers
0
Confidential Omitted
No
Holdings (72)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Amphenol Corp | 032095101 | 133,993 | $16.6M | 4.03% |
| 2 | Lam Research Corp | LRCX | 121,370 | $16.3M | 3.95% |
| 3 | Microsoft Corp | MSFT | 24,976 | $12.9M | 3.15% |
| 4 | Alphabet Inc | GOOG | 51,932 | $12.6M | 3.07% |
| 5 | Heico Corp | HEI-A | 36,978 | $11.9M | 2.90% |
| 6 | Apple Computer | AAPL | 45,530 | $11.6M | 2.82% |
| 7 | O'Reilly Automotive New | 67103H107 | 103,961 | $11.2M | 2.73% |
| 8 | Mastercard Worldwide | MA | 19,581 | $11.1M | 2.71% |
| 9 | Idexx Labs | 45168d104 | 16,984 | $10.9M | 2.64% |
| 10 | Quanta Svcs | PWR | 24,399 | $10.1M | 2.46% |
| 11 | S&P Global Inc | SPGI | 20,278 | $9.9M | 2.40% |
| 12 | Cadence Design Sys | CDNS | 27,361 | $9.6M | 2.34% |
| 13 | Cintas Corp | CTAS | 46,011 | $9.4M | 2.30% |
| 14 | Automatic Data Proc | ADP | 31,942 | $9.4M | 2.28% |
| 15 | Parker Hannifin Corp | PH | 11,561 | $8.8M | 2.13% |
| 16 | Costco Wholesale Co | 22160K105 | 9,379 | $8.7M | 2.11% |
| 17 | Lilly Eli & Co | LLY | 11,162 | $8.5M | 2.07% |
| 18 | Sherwin-Williams Co | SHW | 24,265 | $8.4M | 2.04% |
| 19 | Ametek | AME | 44,187 | $8.3M | 2.02% |
| 20 | Home Depot | HD | 20,375 | $8.3M | 2.01% |
| 21 | Intuitive Surgical | ISRG | 18,357 | $8.2M | 2.00% |
| 22 | Moody's Corp | MCO | 17,225 | $8.2M | 2.00% |
| 23 | Intuit | INTU | 11,983 | $8.2M | 1.99% |
| 24 | Waste Connections Inc | WCN | 46,435 | $8.2M | 1.98% |
| 25 | Monolithic Power Systems | 609839105 | 8,523 | $7.8M | 1.91% |
| 26 | Fair Isaac Corp | FICO | 5,209 | $7.8M | 1.90% |
| 27 | Aon PLC | AON | 21,641 | $7.7M | 1.88% |
| 28 | Thermo Fisher Scientific | TMO | 15,355 | $7.4M | 1.81% |
| 29 | Fortinet Inc | FTNT | 88,521 | $7.4M | 1.81% |
| 30 | Steris PLC | STE | 29,741 | $7.4M | 1.79% |
| 31 | Stryker Corp | SYK | 19,724 | $7.3M | 1.77% |
| 32 | Arch Cap Group Ltd | G0450A105 | 79,772 | $7.2M | 1.76% |
| 33 | Air Products & Chemicals | AIIR | 26,507 | $7.2M | 1.76% |
| 34 | Nvidia Corp | NVDA | 34,836 | $6.5M | 1.58% |
| 35 | Leidos Holdings Inc | LDOS | 34,273 | $6.5M | 1.57% |
| 36 | Roper Technologies Inc | ROP | 12,371 | $6.2M | 1.50% |
| 37 | Watsco | WSO-B | 14,499 | $5.9M | 1.43% |
| 38 | Illinois Tool Works | 452308109 | 22,412 | $5.8M | 1.42% |
| 39 | Grainger (WW) | 384802104 | 6,009 | $5.7M | 1.39% |
| 40 | Monster Beverage Corp | MNST | 80,772 | $5.4M | 1.32% |
| 41 | Fiserv | FISV | 41,327 | $5.3M | 1.30% |
| 42 | Ingersoll Rand | IR | 62,874 | $5.2M | 1.26% |
| 43 | Accenture PLC Cl A | ACN | 20,281 | $5.0M | 1.22% |
| 44 | Motorola Solutions Inc | MSI | 9,775 | $4.5M | 1.09% |
| 45 | Lockheed Martin Corp | LMT | 8,508 | $4.2M | 1.03% |
| 46 | Danaher Corp | 235851102 | 21,103 | $4.2M | 1.02% |
| 47 | Church & Dwight | CHD | 46,613 | $4.1M | 0.99% |
| 48 | Linde PLC | LIN | 8,488 | $4.0M | 0.98% |
| 49 | Chipotle Mexican Grill | CMG | 90,831 | $3.6M | 0.87% |
| 50 | Badger Meter Inc | BMI | 18,492 | $3.3M | 0.80% |
| 51 | Vanguard 500 Index Fd | 922908710 | 4,352 | $2.7M | 0.65% |
| 52 | Exxon Mobil Corp | XOM | 10,608 | $1.2M | 0.29% |
| 53 | TRPrice Assoc | TROW | 6,825 | $700,518 | 0.17% |
| 54 | Chevron Corp | CVX | 4,194 | $651,286 | 0.16% |
| 55 | Marriott Intl New Cl A | 571903202 | 2,318 | $603,700 | 0.15% |
| 56 | Neuberger Berman Partners | 641224407 | 11,195 | $571,168 | 0.14% |
| 57 | iShares US Tech ETF | 464287721 | 2,875 | $563,097 | 0.14% |
| 58 | Neuberger Berman Genesis Fd. | 641224100 | 7,559 | $477,284 | 0.12% |
| 59 | Berkshire Hathaway Cl B | BRK-A | 785 | $394,651 | 0.10% |
| 60 | Abbott Laboratories | ABLZF | 2,875 | $385,077 | 0.09% |
| 61 | Paychex | PAYX | 2,950 | $373,942 | 0.09% |
| 62 | Arthur J. Gallagher & Co | 363576109 | 1,050 | $325,227 | 0.08% |
| 63 | Autozone | AZO | 65 | $278,866 | 0.07% |
| 64 | Digital Realty Trust | 253868103 | 1,600 | $276,608 | 0.07% |
| 65 | Johnson & Johnson | JNJ | 1,325 | $245,681 | 0.06% |
| 66 | Duff & Phelps Util Income | 264324104 | 23,604 | $236,276 | 0.06% |
| 67 | Honeywell Intl Inc | 438516106 | 1,114 | $234,497 | 0.06% |
| 68 | DFA US Core Equity 1 | 233203413 | 4,781 | $231,562 | 0.06% |
| 69 | iShares Dow Jones Select Div F | 464287168 | 1,600 | $227,360 | 0.06% |
| 70 | Mettler Toledo Intl | MTD | 175 | $214,832 | 0.05% |
| 71 | J P Morgan Chase | VYLD | 668 | $210,707 | 0.05% |
| 72 | CSX Corp | CSX | 5,700 | $202,407 | 0.05% |