CARDEROCK CAPITAL MANAGEMENT INC — 13F Holdings & Portfolio
CIK 1168889 · latest 13F-HR filed 2026-04-10
CARDEROCK CAPITAL MANAGEMENT INC manages $404.8M in 13F-reported U.S. long-equity assets across 73 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are LRCX (5.06%), GOOGL (4.10%), APH (3.54%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 8 new positions, exited 4, added to 25, and trimmed 26.
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.
$404.8M
Long-equity book
73
Distinct positions
2026-03-31
Filed 2026-04-10
+8 / −4 / ↑25 / ↓26
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MOTOROLA SOLUTIONS INC$3.4M +77.2%
- WALMART INC$3.3M +203.0%
- LINDE PLC$3.1M +73.1%
- TJX COS INC NEW$2.7M +146.6%
- QUANTA SVCS INC$2.5M +24.4%
Top Trims
- FAIR ISAAC CORP-$5.9M -67.0%
- MICROSOFT CORP-$2.7M -21.5%
- S&P GLOBAL INC-$2.5M -21.0%
- AMPHENOL CORP NEW-$2.4M -14.3%
- IDEXX LABS INC-$2.1M -18.5%
New Positions
- BERKSHIRE HATHAWAY INC DEL$2.2M
- INTEL CORP$1.4M
- LOEWS CORP$1.3M
- DARDEN RESTAURANTS INC$588.1K
- WD 40 CO$407.9K
Exited Positions
- ROPER TECHNOLOGIES INC$3.0M
- BADGER METER INC$2.4M
- FISERV INC$404.6K
- ABBOTT LABS$247.4K
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 | $20.5M | 5.06% | 95,798 | SH |
| 2 | ALPHABET INC | GOOGL | 02079K305 | $16.6M | 4.10% | 57,782 | SH |
| 3 | AMPHENOL CORP NEW | APH | 032095101 | $14.3M | 3.54% | 113,454 | SH |
| 4 | APPLE INC | AAPL | 037833100 | $13.4M | 3.30% | 52,711 | SH |
| 5 | MONOLITHIC PWR SYS INC | MPWR | 609839105 | $12.8M | 3.15% | 11,665 | SH |
| 6 | QUANTA SVCS INC | PWR | 74762E102 | $12.6M | 3.10% | 22,869 | SH |
| 7 | ELI LILLY & CO | LLY | 532457108 | $11.6M | 2.86% | 12,582 | SH |
| 8 | MASTERCARD INCORPORATED | MA | 57636Q104 | $11.5M | 2.83% | 22,964 | SH |
| 9 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $10.5M | 2.58% | 21,269 | SH |
| 10 | HEICO CORP NEW | HEI | 422806109 | $10.3M | 2.54% | 37,525 | SH |
| 11 | PARKER-HANNIFIN CORP | PH | 701094104 | $10.1M | 2.50% | 11,319 | SH |
| 12 | MICROSOFT CORP | MSFT | 594918104 | $10.0M | 2.46% | 26,928 | SH |
| 13 | AMETEK INC | AME | 031100100 | $9.8M | 2.41% | 45,496 | SH |
| 14 | COSTCO WHSL CORP NEW | COST | 22160K105 | $9.7M | 2.39% | 9,716 | SH |
| 15 | S&P GLOBAL INC | SPGI | 78409V104 | $9.6M | 2.37% | 22,567 | SH |
| 16 | OREILLY AUTOMOTIVE INC | ORLY | 67103H107 | $9.4M | 2.33% | 102,303 | SH |
| 17 | NVIDIA CORPORATION | NVDA | 67066G104 | $9.3M | 2.31% | 53,610 | SH |
| 18 | IDEXX LABS INC | IDXX | 45168D104 | $9.3M | 2.29% | 16,466 | SH |
| 19 | STERIS PLC | STE | G8473T100 | $8.6M | 2.12% | 38,751 | SH |
| 20 | INTUITIVE SURGICAL INC | ISRG | 46120E602 | $8.5M | 2.11% | 18,539 | SH |
| 21 | MONSTER BEVERAGE CORP NEW | MNST | 61174X109 | $8.4M | 2.09% | 116,496 | SH |
| 22 | MOTOROLA SOLUTIONS INC | MSI | 620076307 | $7.7M | 1.91% | 17,857 | SH |
| 23 | CINTAS CORP | CTAS | 172908105 | $7.7M | 1.90% | 45,525 | SH |
| 24 | SHERWIN WILLIAMS CO | SHW | 824348106 | $7.7M | 1.90% | 23,948 | SH |
| 25 | CADENCE DESIGN SYSTEM INC | CDNS | 127387108 | $7.6M | 1.87% | 27,308 | SH |
| 26 | FORTINET INC | FTNT | 34959E109 | $7.4M | 1.84% | 91,109 | SH |
| 27 | MOODYS CORP | MCO | 615369105 | $7.4M | 1.84% | 17,063 | SH |
| 28 | LINDE PLC | LIN | G54950103 | $7.4M | 1.82% | 14,845 | SH |
| 29 | AIR PRODS & CHEMS INC | APD | 009158106 | $7.2M | 1.78% | 24,758 | SH |
| 30 | AUTOMATIC DATA PROCESSING IN | ADP | 053015103 | $7.0M | 1.73% | 34,373 | SH |
| 31 | AON PLC | AON | G0403H108 | $7.0M | 1.72% | 21,586 | SH |
| 32 | ARCH CAP GROUP LTD | ACGL | G0450A105 | $6.9M | 1.69% | 71,435 | SH |
| 33 | INTUIT | INTU | 461202103 | $6.7M | 1.66% | 15,572 | SH |
| 34 | STRYKER CORPORATION | SYK | 863667101 | $6.7M | 1.65% | 20,338 | SH |
| 35 | WW GRAINGER INC | GWW | 384802104 | $6.7M | 1.65% | 6,114 | SH |
| 36 | HOME DEPOT INC | HD | 437076102 | $6.6M | 1.64% | 20,190 | SH |
| 37 | ILLINOIS TOOL WKS INC | ITW | 452308109 | $6.3M | 1.56% | 24,193 | SH |
| 38 | LEIDOS HOLDINGS INC | LDOS | 525327102 | $5.6M | 1.38% | 35,952 | SH |
| 39 | WASTE CONNECTIONS INC | WCN | 94106B101 | $5.5M | 1.35% | 33,628 | SH |
| 40 | INGERSOLL RAND INC | IR | 45687V106 | $5.2M | 1.28% | 64,626 | SH |
| 41 | WALMART INC | WMT | 931142103 | $5.0M | 1.23% | 40,040 | SH |
| 42 | DANAHER CORPORATION | DHR | 235851102 | $4.8M | 1.19% | 25,451 | SH |
| 43 | TJX COS INC NEW | TJX | 872540109 | $4.5M | 1.11% | 28,118 | SH |
| 44 | FEDERAL SIGNAL CORP | FSS | 313855108 | $3.7M | 0.91% | 34,202 | SH |
| 45 | FAIR ISAAC CORP | FICO | 303250104 | $2.9M | 0.72% | 2,736 | SH |
| 46 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $2.2M | 0.53% | 3 | SH |
| 47 | EXXON MOBIL CORP | XOM | 30231G102 | $1.7M | 0.43% | 10,208 | SH |
| 48 | INTEL CORP | INTC | 458140100 | $1.4M | 0.35% | 32,000 | SH |
| 49 | WATSCO INC | WSO | 942622200 | $1.3M | 0.33% | 3,650 | SH |
| 50 | LOEWS CORP | L | 540424108 | $1.3M | 0.32% | 12,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-10 | $404.8M | 73 | 0001941040-26-000214 |
| 2025-12-31 | 2026-01-09 | $412.7M | 69 | 0001941040-26-000007 |