Rockbridge Asset Management LLC In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 10, 2026), Rockbridge Asset Management LLC reported 30 stock positions worth $152.5 million . Its top holding was Markel (MKL) at 12.3% of the portfolio, followed by Amazon.com (AMZN, 9.6% ) and O'reilly Automotive (ORLY, 8.7% ). Compared with Q1 2026, it opened 4 new positions, added to 5 and reduced 12. The biggest buy was Copart (CPRT, shares +68% ) and the biggest sale CCC Intelligent Solutions Ho (CCC, shares −36% ).
Location ALEXANDRIA, VA
CIK 0002056320
Portfolio Value $152.5M (Q2 2026) Holdings 30 stocks · $152.5M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q1 2026 MKL Markel Group Inc. 9,588 $18.7M Add +2.1% AMZN Amazon.com Inc. 61,330 $14.6M Add +0.1% ORLY O'reilly Automotive Inc. 143,595 $13.2M Reduce -1.6% CPRT Copart Inc. 462,711 $13.0M Add +67.7% AMT American Tower Corp. 78,863 $12.9M Reduce -5.0% MSFT Microsoft Corp. 30,805 $11.5M Reduce -0.1% BRK.B Berkshire Hathaway Inc. Class B 22,730 $11.4M Reduce -0.6% AAPL Apple Inc. 33,578 $9.7M Reduce -0.6% MA Mastercard Inc. Class A 15,992 $8.2M Reduce -3.4% LMT Lockheed Martin Corp. 15,739 $8.0M Reduce -1.2% V Visa Inc. Class A 21,876 $7.5M Reduce -11.2% GOOGL Alphabet Inc. Class A 20,544 $7.3M Reduce -0.1% CCC CCC Intelligent Solutions Ho 677,501 $3.5M Reduce -36.3% BLDR Builders Firstsource Inc. 36,192 $3.2M Add +10.0% KNSL Kinsale Capital Group Inc. 8,949 $3.0M Reduce -21.4% CBRE CBRE Group Inc. Class A 11,295 $1.5M Reduce -0.2% SBAC SBA Communications Corp. 4,763 $840K No change JPM JPMorgan Chase & Co. 2,424 $793K No change AKRE Akre Focus ETF filed as PROFESIONALLY MANAGED PORTFO 10,709 $570K Add +60.1% CVX Chevron Corp. 2,695 $447K No change KLAC KLA Corp. 1,130 $341K New GE General Electric filed as GE AEROSPACE 875 $327K No change LRCX Lam Research Corp. 730 $316K New MPLX MPLX LP 5,381 $303K No change AEP American Electric Power 2,116 $289K No change AVGO Broadcom Inc. 700 $264K No change GEV GE Vernova Inc. 218 $256K New PG The Procter & Gamble Co. 1,721 $252K No change ISOU Isoenergy Ltd. 10,000 $100K No change NABL N-Able Inc. 14,680 $54K New
Options reported separately and not counted above: SPY puts ($2.6M).
Portfolio Sells Q1 2026 → Q2 2026 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
Stock Change vs Q1 2026 % Of Portfolio Change To Portfolio ▲ CCC CCC Intelligent Solutions Ho Reduce -36.3% 2.29% −2.01 LMT Lockheed Martin Corp. Reduce -1.2% 5.26% −1.24 AMT American Tower Corp. Reduce -5.0% 8.46% −1.21 KNSL Kinsale Capital Group Inc. Reduce -21.4% 1.94% −0.69 ORLY O'reilly Automotive Inc. Reduce -1.6% 8.67% −0.41 MA Mastercard Inc. Class A Reduce -3.4% 5.38% −0.19 MSFT Microsoft Corp. Reduce -0.1% 7.53% −0.17 V Visa Inc. Class A Reduce -11.2% 4.92% −0.10 CBRE CBRE Group Inc. Class A Reduce -0.2% 1.00% −0.04 BRK.B Berkshire Hathaway Inc. Class B Reduce -0.6% 7.46% +0.07 AAPL Apple Inc. Reduce -0.6% 6.37% +0.59 GOOGL Alphabet Inc. Class A Reduce -0.1% 4.81% +0.82
Portfolio Buys Q1 2026 → Q2 2026 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
Stock Change vs Q1 2026 % Of Portfolio Change To Portfolio ▼ CPRT Copart Inc. Add +67.7% 8.55% +2.37 AMZN Amazon.com Inc. Add +0.1% 9.58% +0.98 BLDR Builders Firstsource Inc. Add +10.0% 2.12% +0.30 KLAC KLA Corp. New 0.22% +0.22 LRCX Lam Research Corp. New 0.21% +0.21 GEV GE Vernova Inc. New 0.17% +0.17 MKL Markel Group Inc. Add +2.1% 12.28% +0.15 AKRE Akre Focus ETF Add +60.1% 0.37% +0.14 NABL N-Able Inc. New 0.04% +0.04
Options Activity Q1 2026 → Q2 2026 Security Type Change vs Q1 2026 Underlying Shares Value ▼ SPY SS SPDR S&P 500 ETF Trust-US put Add +250.0% 3,500 $2.6M
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 30 $152.5M MKL, AMZN, ORLY, CPRT, AMT Q1 2026 26 $148.3M MKL, AMT, ORLY, AMZN, MSFT Q4 2025 30 $165.0M MKL, AMZN, MSFT, AMT, ORLY Q3 2025 29 $169.4M MSFT, ORLY, AMT, MKL, AMZN Q2 2025 27 $175.7M AMT, MKL, AMZN, MSFT, ORLY Q1 2025 24 $163.4M AMT, MKL, ORLY, AMZN, BRK.B Q4 2024 24 $175.9M MKL, MSFT, AMZN, AMT, ORLY