CARDEROCK CAPITAL MANAGEMENT INC — 13F Holdings & Portfolio
CIK 1168889 · latest 13F-HR filed 2026-07-07
CARDEROCK CAPITAL MANAGEMENT INC manages $455.8M in 13F-reported U.S. long-equity assets across 67 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are LRCX (7.02%), GOOGL (4.43%), APH (4.12%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 3 new positions, exited 9, added to 33, and trimmed 14.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
SUITE 600
CHEVY CHASE, MD 20815-7003
$455.8M
Long-equity book
67
Distinct positions
2026-06-30
Filed 2026-07-07
+3 / −9 / ↑33 / ↓14
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- LAM RESEARCH CORP$11.5M +56.2%
- FORTINET INC$6.6M +88.6%
- FEDERAL SIGNAL CORP$5.9M +159.8%
- AMPHENOL CORP$4.5M +31.1%
- HEICO CORP NEW$4.0M +38.7%
Top Trims
- INTUIT-$5.8M -86.8%
- LEIDOS HOLDINGS INC-$4.9M -88.5%
- DANAHER CORP DEL-$4.6M -95.6%
- S&P GLOBAL INC-$2.9M -30.6%
- AUTOMATIC DATA PROCESSING IN-$1.7M -24.2%
Exited Positions
- FAIR ISAAC CORP$2.9M
- JOHNSON & JOHNSON$323.9K
- GENERAL MLS INC$297.8K
- DIGITAL RLTY TR INC$288.3K
- HONEYWELL INTL INC$246.1K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | LAM RESEARCH CORP | LRCX | 512807306 | $32.0M | 7.02% | 73,797 | SH |
| 2 | ALPHABET INC | GOOGL | 02079K305 | $20.2M | 4.43% | 56,486 | SH |
| 3 | AMPHENOL CORP | APH | 032095101 | $18.8M | 4.12% | 106,575 | SH |
| 4 | ELI LILLY & CO | LLY | 532457108 | $15.4M | 3.37% | 12,818 | SH |
| 5 | APPLE INC | AAPL | 037833100 | $15.0M | 3.30% | 51,909 | SH |
| 6 | HEICO CORP NEW | HEI | 422806109 | $14.3M | 3.13% | 40,081 | SH |
| 7 | MONOLITHIC PWR SYS INC | MPWR | 609839105 | $14.2M | 3.12% | 10,301 | SH |
| 8 | QUANTA SVCS INC | PWR | 74762E102 | $14.1M | 3.10% | 19,621 | SH |
| 9 | FORTINET INC | FTNT | 34959E109 | $14.0M | 3.08% | 91,400 | SH |
| 10 | MASTERCARD INCORPORATED | MA | 57636Q104 | $12.5M | 2.74% | 24,357 | SH |
| 11 | MONSTER BEVERAGE CORP NEW | MNST | 61174X109 | $12.0M | 2.62% | 124,341 | SH |
| 12 | NVIDIA CORPORATION | NVDA | 67066G104 | $11.3M | 2.48% | 56,544 | SH |
| 13 | AMETEK INC | AME | 031100100 | $11.1M | 2.43% | 45,841 | SH |
| 14 | PARKER-HANNIFIN CORP | PH | 701094104 | $10.9M | 2.38% | 11,112 | SH |
| 15 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $10.5M | 2.29% | 20,860 | SH |
| 16 | MICROSOFT CORP | MSFT | 594918104 | $10.2M | 2.25% | 27,435 | SH |
| 17 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $10.1M | 2.22% | 10,821 | SH |
| 18 | FEDERAL SIGNAL CORP | FSS | 313855108 | $9.6M | 2.11% | 74,774 | SH |
| 19 | WW GRAINGER INC | GWW | 384802104 | $9.4M | 2.05% | 6,874 | SH |
| 20 | CADENCE DESIGN SYSTEM INC | CDNS | 127387108 | $9.3M | 2.05% | 24,899 | SH |
| 21 | OREILLY AUTOMOTIVE INC | ORLY | 67103H107 | $9.3M | 2.04% | 101,093 | SH |
| 22 | IDEXX LABS INC | IDXX | 45168D104 | $8.8M | 1.92% | 16,627 | SH |
| 23 | SHERWIN WILLIAMS CO | SHW | 824348106 | $8.7M | 1.92% | 25,398 | SH |
| 24 | STERIS PLC | STE | G8473T100 | $8.4M | 1.85% | 40,090 | SH |
| 25 | LINDE PLC | LIN | G54950103 | $8.1M | 1.78% | 15,606 | SH |
| 26 | MOTOROLA SOLUTIONS INC | MSI | 620076307 | $7.9M | 1.74% | 19,069 | SH |
| 27 | AON PLC | AON | G0403H108 | $7.8M | 1.71% | 23,559 | SH |
| 28 | CINTAS CORP | CTAS | 172908105 | $7.5M | 1.64% | 43,970 | SH |
| 29 | INTUITIVE SURGICAL INC | ISRG | 46120E602 | $7.2M | 1.59% | 18,207 | SH |
| 30 | HOME DEPOT INC | HD | 437076102 | $7.1M | 1.55% | 20,032 | SH |
| 31 | AIR PRODUCTS AND CHEMICALS I | APD | 009158106 | $6.9M | 1.51% | 23,505 | SH |
| 32 | ARCH CAP GROUP LTD | ACGL | G0450A105 | $6.8M | 1.50% | 70,348 | SH |
| 33 | STRYKER CORPORATION | SYK | 863667101 | $6.8M | 1.50% | 21,642 | SH |
| 34 | S&P GLOBAL INC | SPGI | 78409V104 | $6.7M | 1.46% | 16,357 | SH |
| 35 | ILLINOIS TOOL WKS INC | ITW | 452308109 | $6.6M | 1.45% | 24,420 | SH |
| 36 | MOODYS CORP | MCO | 615369105 | $6.2M | 1.37% | 13,750 | SH |
| 37 | WASTE CONNECTIONS INC | WCN | 94106B101 | $5.8M | 1.28% | 35,027 | SH |
| 38 | INGERSOLL RAND INC | IR | 45687V106 | $5.3M | 1.17% | 65,223 | SH |
| 39 | AUTOMATIC DATA PROCESSING IN | ADP | 053015103 | $5.3M | 1.16% | 23,646 | SH |
| 40 | TJX COS INC NEW | TJX | 872540109 | $5.2M | 1.15% | 34,486 | SH |
| 41 | WALMART INC | WMT | 931142103 | $5.1M | 1.11% | 44,837 | SH |
| 42 | WATSCO INC | WSO | 942622200 | $4.8M | 1.05% | 11,519 | SH |
| 43 | INTEL CORP | INTC | 458140100 | $4.5M | 0.98% | 32,000 | SH |
| 44 | EATON CORP PLC | ETN | G29183103 | $3.9M | 0.86% | 9,160 | SH |
| 45 | GALLAGHER ARTHUR J & CO | AJG | 363576109 | $3.7M | 0.82% | 16,330 | SH |
| 46 | WATERS CORP | WAT | 941848103 | $2.8M | 0.61% | 7,417 | SH |
| 47 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $2.2M | 0.49% | 3 | SH |
| 48 | LOEWS CORP | L | 540424108 | $1.4M | 0.30% | 12,000 | SH |
| 49 | EXXON MOBIL CORP | XOM | 30231G102 | $988.9K | 0.22% | 7,233 | SH |
| 50 | INTUIT | INTU | 461202103 | $889.2K | 0.20% | 3,407 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-07 | $455.8M | 67 | 0001941040-26-000409 |
| 2026-03-31 | 2026-04-10 | $404.8M | 73 | 0001941040-26-000214 |
| 2025-12-31 | 2026-01-09 | $412.7M | 69 | 0001941040-26-000007 |