Rockbridge Asset Management LLC
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 12, 2025), Rockbridge Asset Management LLC reported 29 stock positions worth $169.4 million. Its top holding was Microsoft (MSFT) at 10.4% of the portfolio, followed by O'reilly Automotive (ORLY, 10.3%) and American Tower (AMT, 10.2%). Compared with Q2 2025, it opened 2 new positions, added to 1 and reduced 18. The biggest buy was a new position in Broadcom (AVGO) and the biggest sale CCC Intelligent Solutions Ho (CCC, shares −41%).
- Most Recent 13F
- Q2 2026
- Location
- ALEXANDRIA, VA
- CIK
- 0002056320
- Portfolio Value
- $169.4M (Q3 2025)
- SEC Filing
- 0002056320-25-000009 ↗ filed Nov 12, 2025
Holdings Value
Holdings 29 stocks · $169.4M
| MSFT Microsoft Corp. | 10.41% | 34,047 | $17.6M | Reduce -3.6% |
| ORLY O'reilly Automotive Inc. | 10.30% | 161,885 | $17.5M | Reduce -6.7% |
| AMT American Tower Corp. | 10.24% | 90,174 | $17.3M | Reduce -1.7% |
| MKL Markel Group Inc. | 10.15% | 8,997 | $17.2M | Reduce -5.8% |
| AMZN Amazon.com Inc. | 10.04% | 77,491 | $17.0M | Reduce -5.0% |
| BRK.B Berkshire Hathaway Inc. Class B | 7.23% | 24,379 | $12.3M | Reduce -5.8% |
| CPRT Copart Inc. | 6.80% | 256,067 | $11.5M | Add +3.3% |
| MA Mastercard Inc. Class A | 6.10% | 18,183 | $10.3M | Reduce -4.4% |
| AAPL Apple Inc. | 5.52% | 36,711 | $9.3M | Reduce -4.5% |
| LMT Lockheed Martin Corp. | 5.08% | 17,253 | $8.6M | Reduce -5.3% |
| GOOGL Alphabet Inc. Class A | 3.11% | 21,666 | $5.3M | Reduce -12.3% |
| V Visa Inc. Class A | 2.97% | 14,738 | $5.0M | Reduce -6.1% |
| DBRG Digitalbridge Group Inc. | 2.64% | 381,781 | $4.5M | Reduce -11.3% |
| BLDR Builders Firstsource Inc. | 2.54% | 35,507 | $4.3M | Reduce -3.2% |
| CCC CCC Intelligent Solutions Ho | 2.17% | 404,249 | $3.7M | Reduce -40.7% |
| AMRZ Amrize Ltd. | 1.12% | 39,239 | $1.9M | Reduce -2.6% |
| OLED Universal Display Corp. | 1.00% | 11,748 | $1.7M | Reduce -5.8% |
| SBAC SBA Communications Corp. | 0.58% | 5,047 | $976K | Reduce -17.7% |
| JPM JPMorgan Chase & Co. | 0.45% | 2,424 | $765K | No change |
| MRP Millrose Properties | 0.25% | 12,851 | $432K | No change |
| CVX Chevron Corp. | 0.25% | 2,695 | $419K | No change |
| LULU Lululemon Athletica Inc. | 0.16% | 1,512 | $269K | Reduce -28.4% |
| MPLX MPLX LP | 0.16% | 5,381 | $269K | No change |
| PG The Procter & Gamble Co. | 0.16% | 1,721 | $264K | No change |
| GE General Electric filed as GE AEROSPACE | 0.16% | 875 | $263K | No change |
| AEP American Electric Power | 0.14% | 2,116 | $238K | No change |
| AVGO Broadcom Inc. | 0.14% | 700 | $231K | New |
| AES AES Corp. | 0.08% | 10,000 | $132K | No change |
| ISOU Isoenergy Ltd. | 0.06% | 10,000 | $100K | New |
Portfolio Sells Q2 2025 → Q3 2025
| CCC CCC Intelligent Solutions Ho | Reduce -40.7% | 2.17% | −1.48 |
| AMT American Tower Corp. | Reduce -1.7% | 10.24% | −1.30 |
| MKL Markel Group Inc. | Reduce -5.8% | 10.15% | −0.71 |
| SBAC SBA Communications Corp. | Reduce -17.7% | 0.58% | −0.24 |
| V Visa Inc. Class A | Reduce -6.1% | 2.97% | −0.20 |
| AMZN Amazon.com Inc. | Reduce -5.0% | 10.04% | −0.14 |
| LULU Lululemon Athletica Inc. | Reduce -28.4% | 0.16% | −0.13 |
| OLED Universal Display Corp. | Reduce -5.8% | 1.00% | −0.10 |
| AMRZ Amrize Ltd. | Reduce -2.6% | 1.12% | −0.01 |
| MA Mastercard Inc. Class A | Reduce -4.4% | 6.10% | +0.02 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -5.8% | 7.23% | +0.08 |
| DBRG Digitalbridge Group Inc. | Reduce -11.3% | 2.64% | +0.10 |
| BLDR Builders Firstsource Inc. | Reduce -3.2% | 2.54% | +0.10 |
| LMT Lockheed Martin Corp. | Reduce -5.3% | 5.08% | +0.28 |
| MSFT Microsoft Corp. | Reduce -3.6% | 10.41% | +0.41 |
| GOOGL Alphabet Inc. Class A | Reduce -12.3% | 3.11% | +0.63 |
| AAPL Apple Inc. | Reduce -4.5% | 5.52% | +1.03 |
| ORLY O'reilly Automotive Inc. | Reduce -6.7% | 10.30% | +1.40 |
Portfolio Buys Q2 2025 → Q3 2025
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 |