Carderock Capital Management Inc.
In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 27, 2025), Carderock Capital Management Inc. reported 70 stock positions worth $377.3 million. Its top holding was Mastercard Class A (MA) at 3.3% of the portfolio, followed by Apple (AAPL, 3.1%) and Intuitive Surgical (ISRG, 2.8%). Compared with Q4 2024, it opened 2 new positions, sold out of 5, added to 19 and reduced 44. The biggest buy was a new position in Leidos (LDOS) and the biggest sale an exit from Hershey (HSY).
- Most Recent 13F
- Q2 2026
- Location
- CHEVY CHASE, MD
- CIK
- 0001168889
- Portfolio Value
- $377.3M (Q1 2025)
- SEC Filing
- 0001168889-25-000003 ↗ filed May 27, 2025
Holdings Value
Holdings 70 stocks · $377.3M
| MA Mastercard Inc. Class A | 3.34% | 23,018 | $12.6M | Reduce -3.8% |
| AAPL Apple Inc. | 3.11% | 52,899 | $11.8M | Reduce -10.0% |
| ISRG Intuitive Surgical Inc. | 2.84% | 21,660 | $10.7M | Reduce -0.2% |
| FISV Fiserv Inc. | 2.78% | 47,528 | $10.5M | Reduce -7.8% |
| CTAS Cintas Corp. | 2.78% | 50,954 | $10.5M | Reduce -2.7% |
| APH Amphenol Corp. Class A | 2.71% | 156,065 | $10.2M | Reduce -6.0% |
| COST Costco Wholesale Corp. | 2.69% | 10,727 | $10.1M | Reduce -1.6% |
| ORLY O'reilly Automotive Inc. | 2.67% | 7,020 | $10.1M | Reduce -7.0% |
| SPGI S&P Global Inc. | 2.66% | 19,778 | $10.0M | Add +0.0% |
| ADP Automatic Data Processing | 2.56% | 31,630 | $9.7M | Add +0.8% |
| HEI Heico Corp. | 2.52% | 35,610 | $9.5M | Reduce -2.6% |
| MCO Moody's Corp. | 2.48% | 20,081 | $9.4M | Add +1.6% |
| GOOGL Alphabet Inc. Class A | 2.39% | 58,385 | $9.0M | Reduce -8.4% |
| MSFT Microsoft Corp. | 2.37% | 23,818 | $8.9M | Reduce -20.4% |
| SYK Stryker Corp. | 2.30% | 23,309 | $8.7M | Add +7.8% |
| FICO Fair Isaac Corp. | 2.27% | 4,641 | $8.6M | Reduce -11.6% |
| WCN Waste Connections Inc. | 2.25% | 43,542 | $8.5M | Add +0.2% |
| PH Parker Hannifin Corp. | 2.24% | 13,883 | $8.4M | Reduce -16.2% |
| ROP Roper Technologies Inc. | 2.21% | 14,156 | $8.3M | Add +2.5% |
| FTNT Fortinet Inc. | 2.18% | 85,569 | $8.2M | Reduce -4.7% |
| SHW The Sherwin-Williams Co. | 2.18% | 23,563 | $8.2M | Reduce -1.5% |
| ACGL Arch Capital Group Ltd. | 2.13% | 83,542 | $8.0M | Reduce -11.6% |
| LRCX Lam Research Corp. | 2.10% | 108,903 | $7.9M | Add +2.1% |
| LLY Eli Lilly & Co. | 2.07% | 9,460 | $7.8M | Add +16.5% |
| APD Air Products & Chemicals Inc. | 2.07% | 26,461 | $7.8M | Add +4.2% |
| AON Aon PLC Class A | 2.07% | 19,551 | $7.8M | Add +5.7% |
| HD Home Depot Inc. | 2.07% | 21,285 | $7.8M | Add +0.7% |
| AME Ametek Inc. | 2.04% | 44,735 | $7.7M | Reduce -0.8% |
| CDNS Cadence Design SYS Inc. | 1.93% | 28,628 | $7.3M | Reduce -11.1% |
| PWR Quanta Services Inc. | 1.91% | 28,327 | $7.2M | Reduce -7.7% |
| WSO Watsco Inc. | 1.87% | 13,848 | $7.0M | Add +7.8% |
| ACN Accenture PLC Class A | 1.83% | 22,177 | $6.9M | Add +4.2% |
| TMO Thermo Fisher Scientific Inc. | 1.79% | 13,594 | $6.8M | Add +10.2% |
| INTU Intuit Inc. | 1.74% | 10,696 | $6.6M | Add +2.9% |
| IDXX Idexx Laboratories Inc. | 1.61% | 14,429 | $6.1M | Add +4.8% |
| STE Steris PLC | 1.59% | 26,418 | $6.0M | Reduce -1.9% |
| CHD Church & Dwight Co. Inc. | 1.48% | 50,658 | $5.6M | Reduce -7.1% |
| NVDA Nvidia Corp. | 1.45% | 50,385 | $5.5M | Reduce -8.6% |
| UNH Unitedhealth Group Inc. | 1.44% | 10,361 | $5.4M | Reduce -6.1% |
| CMG Chipotle Mexican Grill Inc. | 1.43% | 107,722 | $5.4M | Reduce -18.4% |
| IR Ingersoll-Rand Inc. | 1.43% | 67,253 | $5.4M | Reduce -4.0% |
| ITW Illinois Tool Works | 1.40% | 21,262 | $5.3M | Reduce -0.5% |
| GWW WW Grainger Inc. filed as GRAINGER W W INC | 1.39% | 5,327 | $5.3M | Add +12.2% |
| DHR Danaher Corp. | 1.06% | 19,457 | $4.0M | Reduce -1.1% |
| LMT Lockheed Martin Corp. | 0.98% | 8,302 | $3.7M | Reduce -7.5% |
| MPWR Monolithic Power Systems Inc. | 0.98% | 6,359 | $3.7M | Add +31.1% |
| MNST Monster Beverage Corp. | 0.85% | 54,768 | $3.2M | Add +18.4% |
| LDOS Leidos Holdings Inc. | 0.73% | 20,497 | $2.8M | New |
| VFIAX Vanguard 500 Index-Adm | 0.60% | 4,352 | $2.3M | Reduce -2.2% |
| XOM Exxon Mobil Corp. | 0.43% | 13,508 | $1.6M | Reduce -0.9% |
| TROW T Rowe Price Group Inc. filed as PRICE T ROWE GROUP INC | 0.20% | 8,225 | $756K | Reduce -16.7% |
| CVX Chevron Corp. | 0.19% | 4,182 | $700K | Reduce -2.9% |
| MAR Marriott International Class A | 0.15% | 2,444 | $582K | Reduce -3.9% |
| NPRTX Neuberger Large CP Value-Inv | 0.14% | 11,195 | $522K | No change |
| PAYX Paychex Inc. | 0.12% | 2,950 | $455K | No change |
| NBGNX Neuberger Genesis Fund | 0.12% | 7,559 | $451K | No change |
| UNP Union Pacific Corp. | 0.11% | 1,720 | $406K | Reduce -10.3% |
| IYW iShares Ustechnology ETF | 0.11% | 2,875 | $404K | Reduce -4.2% |
| ABT Abbott Laboratories | 0.10% | 2,900 | $385K | Reduce -45.6% |
| AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO | 0.10% | 1,100 | $380K | Reduce -8.3% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.10% | 680 | $362K | Reduce -19.5% |
| ANSS Ansys Inc. | 0.09% | 1,129 | $357K | Reduce -84.0% |
| AZO AutoZone Inc. | 0.07% | 65 | $248K | No change |
| HON Honeywell International Inc. | 0.06% | 1,139 | $241K | Reduce -75.9% |
| DE Deere & Co. | 0.06% | 500 | $235K | Reduce -41.9% |
| Duff & Phelps Util Income | 0.06% | 23,604 | $233K | No change |
| DLR Digital Realty Trust Inc. | 0.06% | 1,600 | $229K | Reduce -5.9% |
| JNJ Johnson & Johnson | 0.06% | 1,325 | $220K | Reduce -8.6% |
| DVY iShares Select Dividend ETF | 0.06% | 1,600 | $215K | Reduce -9.4% |
| KO The Coca-Cola Co. | 0.05% | 2,850 | $204K | New |
Portfolio Sells Q4 2024 → Q1 2025
| HSY The Hershey Co. | Sold out | 0.00% | −0.80 |
| MSFT Microsoft Corp. | Reduce -20.4% | 2.37% | −0.79 |
| GOOGL Alphabet Inc. Class A | Reduce -8.4% | 2.39% | −0.63 |
| AAPL Apple Inc. | Reduce -10.0% | 3.11% | −0.58 |
| CMG Chipotle Mexican Grill Inc. | Reduce -18.4% | 1.43% | −0.56 |
| PWR Quanta Services Inc. | Reduce -7.7% | 1.91% | −0.53 |
| ANSS Ansys Inc. | Reduce -84.0% | 0.09% | −0.50 |
| CDNS Cadence Design SYS Inc. | Reduce -11.1% | 1.93% | −0.50 |
| NVDA Nvidia Corp. | Reduce -8.6% | 1.45% | −0.41 |
| PH Parker Hannifin Corp. | Reduce -16.2% | 2.24% | −0.41 |
| FICO Fair Isaac Corp. | Reduce -11.6% | 2.27% | −0.35 |
| MTD Mettler-Toledo International | Sold out | 0.00% | −0.24 |
| HON Honeywell International Inc. | Reduce -75.9% | 0.06% | −0.20 |
| APH Amphenol Corp. Class A | Reduce -6.0% | 2.71% | −0.18 |
| IR Ingersoll-Rand Inc. | Reduce -4.0% | 1.43% | −0.16 |
| LMT Lockheed Martin Corp. | Reduce -7.5% | 0.98% | −0.11 |
| TROW T Rowe Price Group Inc. | Reduce -16.7% | 0.20% | −0.08 |
| DHR Danaher Corp. | Reduce -1.1% | 1.06% | −0.08 |
| PG The Procter & Gamble Co. | Sold out | 0.00% | −0.07 |
| ACGL Arch Capital Group Ltd. | Reduce -11.6% | 2.13% | −0.06 |
| DFEOX Dfa US Core Eqty 1 Port-Inst | Sold out | 0.00% | −0.06 |
| CSX CSX Corp. | Sold out | 0.00% | −0.05 |
| ABT Abbott Laboratories | Reduce -45.6% | 0.10% | −0.05 |
| DE Deere & Co. | Reduce -41.9% | 0.06% | −0.03 |
| MAR Marriott International Class A | Reduce -3.9% | 0.15% | −0.02 |
| DLR Digital Realty Trust Inc. | Reduce -5.9% | 0.06% | −0.01 |
| IYW iShares Ustechnology ETF | Reduce -4.2% | 0.11% | −0.01 |
| VFIAX Vanguard 500 Index-Adm | Reduce -2.2% | 0.60% | −0.01 |
| UNP Union Pacific Corp. | Reduce -10.3% | 0.11% | −0.00 |
| DVY iShares Select Dividend ETF | Reduce -9.4% | 0.06% | −0.00 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -19.5% | 0.10% | −0.00 |
| ISRG Intuitive Surgical Inc. | Reduce -0.2% | 2.84% | +0.00 |
| AME Ametek Inc. | Reduce -0.8% | 2.04% | +0.00 |
| JNJ Johnson & Johnson | Reduce -8.6% | 0.06% | +0.01 |
| AJG Arthur J Gallagher & Co. | Reduce -8.3% | 0.10% | +0.02 |
| CVX Chevron Corp. | Reduce -2.9% | 0.19% | +0.03 |
| UNH Unitedhealth Group Inc. | Reduce -6.1% | 1.44% | +0.04 |
| ITW Illinois Tool Works | Reduce -0.5% | 1.40% | +0.04 |
| CHD Church & Dwight Co. Inc. | Reduce -7.1% | 1.48% | +0.05 |
| FTNT Fortinet Inc. | Reduce -4.7% | 2.18% | +0.06 |
| XOM Exxon Mobil Corp. | Reduce -0.9% | 0.43% | +0.06 |
| FISV Fiserv Inc. | Reduce -7.8% | 2.78% | +0.13 |
| SHW The Sherwin-Williams Co. | Reduce -1.5% | 2.18% | +0.14 |
| COST Costco Wholesale Corp. | Reduce -1.6% | 2.69% | +0.18 |
| MA Mastercard Inc. Class A | Reduce -3.8% | 3.34% | +0.18 |
| STE Steris PLC | Reduce -1.9% | 1.59% | +0.20 |
| HEI Heico Corp. | Reduce -2.6% | 2.52% | +0.34 |
| CTAS Cintas Corp. | Reduce -2.7% | 2.78% | +0.38 |
| ORLY O'reilly Automotive Inc. | Reduce -7.0% | 2.67% | +0.42 |
Portfolio Buys Q4 2024 → Q1 2025
| LDOS Leidos Holdings Inc. | New | 0.73% | +0.73 |
| LLY Eli Lilly & Co. | Add +16.5% | 2.07% | +0.50 |
| ROP Roper Technologies Inc. | Add +2.5% | 2.21% | +0.41 |
| AON Aon PLC Class A | Add +5.7% | 2.07% | +0.40 |
| WCN Waste Connections Inc. | Add +0.2% | 2.25% | +0.38 |
| SYK Stryker Corp. | Add +7.8% | 2.30% | +0.35 |
| WSO Watsco Inc. | Add +7.8% | 1.87% | +0.34 |
| ADP Automatic Data Processing | Add +0.8% | 2.56% | +0.26 |
| MPWR Monolithic Power Systems Inc. | Add +31.1% | 0.98% | +0.26 |
| MNST Monster Beverage Corp. | Add +18.4% | 0.85% | +0.24 |
| APD Air Products & Chemicals Inc. | Add +4.2% | 2.07% | +0.22 |
| SPGI S&P Global Inc. | Add +0.0% | 2.66% | +0.19 |
| TMO Thermo Fisher Scientific Inc. | Add +10.2% | 1.79% | +0.18 |
| IDXX Idexx Laboratories Inc. | Add +4.8% | 1.61% | +0.18 |
| LRCX Lam Research Corp. | Add +2.1% | 2.10% | +0.17 |
| GWW WW Grainger Inc. | Add +12.2% | 1.39% | +0.14 |
| MCO Moody's Corp. | Add +1.6% | 2.48% | +0.13 |
| INTU Intuit Inc. | Add +2.9% | 1.74% | +0.10 |
| KO The Coca-Cola Co. | New | 0.05% | +0.05 |
| HD Home Depot Inc. | Add +0.7% | 2.07% | +0.01 |
| ACN Accenture PLC Class A | Add +4.2% | 1.83% | −0.04 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 67 | $455.8M | LRCX, GOOGL, APH, LLY, AAPL |
| Q1 2026 | 73 | $404.8M | LRCX, GOOGL, APH, AAPL, MPWR |
| Q4 2025 | 69 | $412.7M | GOOGL, LRCX, APH, AAPL, LLY |
| Q3 2025 | 72 | $411.3M | APH, LRCX, MSFT, GOOGL, HEI |
| Q2 2025 | 139 | $390.4M | APH, MSFT, HEI, LRCX, MA |
| Q1 2025 | 70 | $377.3M | MA, AAPL, ISRG, FISV, CTAS |
| Q4 2024 | 73 | $398.7M | AAPL, MSFT, MA, GOOGL, APH |
| Q3 2024 | 73 | $423.6M | AAPL, MSFT, CTAS, PH, FICO |
| Q2 2024 | 69 | $382.2M | MSFT, AAPL, GOOGL, APH, LRCX |
| Q1 2024 | 68 | $356.8M | MSFT, MA, PH, CTAS, LRCX |