Rockbridge Asset Management LLC
In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 14, 2025), Rockbridge Asset Management LLC reported 24 stock positions worth $163.4 million. Its top holding was American Tower (AMT) at 12.3% of the portfolio, followed by Markel (MKL, 11.0%) and O'reilly Automotive (ORLY, 10.2%). Compared with Q4 2024, it opened 1 new position, sold out of 1, added to 13 and reduced 4. The biggest buy was American Tower (AMT, shares +0%) and the biggest sale Microsoft (MSFT, shares −29%).
- Most Recent 13F
- Q2 2026
- Location
- ALEXANDRIA, VA
- CIK
- 0002056320
- Portfolio Value
- $163.4M (Q1 2025)
- SEC Filing
- 0002056320-25-000003 ↗ filed May 14, 2025
Holdings Value
Holdings 24 stocks · $163.4M
| AMT American Tower Corp. | 12.27% | 92,179 | $20.1M | Add +0.5% |
| MKL Markel Group Inc. | 10.97% | 9,592 | $17.9M | Reduce -33.3% |
| ORLY O'reilly Automotive Inc. | 10.17% | 11,604 | $16.6M | Add +0.3% |
| AMZN Amazon.com Inc. | 9.17% | 78,736 | $15.0M | Add +0.3% |
| BRK.B Berkshire Hathaway Inc. Class B | 8.46% | 25,973 | $13.8M | Add +0.4% |
| MSFT Microsoft Corp. | 8.41% | 36,620 | $13.7M | Reduce -29.4% |
| CPRT Copart Inc. | 8.32% | 240,271 | $13.6M | Add +0.6% |
| MA Mastercard Inc. Class A | 6.41% | 19,103 | $10.5M | Add +0.8% |
| AAPL Apple Inc. | 5.24% | 38,567 | $8.6M | Reduce -10.1% |
| LMT Lockheed Martin Corp. | 5.00% | 18,283 | $8.2M | Add +0.5% |
| V Visa Inc. Class A | 3.38% | 15,761 | $5.5M | Add +0.4% |
| CCC CCC Intelligent Solutions Ho | 2.55% | 460,775 | $4.2M | Add +0.7% |
| DBRG Digitalbridge Group Inc. | 2.44% | 451,752 | $4.0M | Reduce -0.1% |
| BLDR Builders Firstsource Inc. | 2.17% | 28,388 | $3.5M | Add +65.9% |
| GOOGL Alphabet Inc. Class A | 1.58% | 16,687 | $2.6M | Add +1.3% |
| OLED Universal Display Corp. | 1.06% | 12,468 | $1.7M | No change |
| SBAC SBA Communications Corp. | 0.83% | 6,131 | $1.3M | Add +1.7% |
| LULU Lululemon Athletica Inc. | 0.37% | 2,112 | $598K | Add +4.2% |
| JPM JPMorgan Chase & Co. | 0.36% | 2,424 | $595K | No change |
| CVX Chevron Corp. | 0.28% | 2,695 | $451K | No change |
| PG The Procter & Gamble Co. | 0.18% | 1,721 | $293K | No change |
| MPLX MPLX LP | 0.18% | 5,381 | $288K | No change |
| AEP American Electric Power | 0.14% | 2,116 | $231K | New |
| AES AES Corp. | 0.08% | 10,000 | $124K | No change |
Portfolio Sells Q4 2024 → Q1 2025
Portfolio Buys Q4 2024 → Q1 2025
| AMT American Tower Corp. | Add +0.5% | 12.27% | +2.71 |
| ORLY O'reilly Automotive Inc. | Add +0.3% | 10.17% | +2.38 |
| BRK.B Berkshire Hathaway Inc. Class B | Add +0.4% | 8.46% | +1.80 |
| BLDR Builders Firstsource Inc. | Add +65.9% | 2.17% | +0.78 |
| MA Mastercard Inc. Class A | Add +0.8% | 6.41% | +0.73 |
| V Visa Inc. Class A | Add +0.4% | 3.38% | +0.56 |
| CPRT Copart Inc. | Add +0.6% | 8.32% | +0.53 |
| AEP American Electric Power | New | 0.14% | +0.14 |
| SBAC SBA Communications Corp. | Add +1.7% | 0.83% | +0.13 |
| LMT Lockheed Martin Corp. | Add +0.5% | 5.00% | −0.03 |
| LULU Lululemon Athletica Inc. | Add +4.2% | 0.37% | −0.07 |
| GOOGL Alphabet Inc. Class A | Add +1.3% | 1.58% | −0.19 |
| CCC CCC Intelligent Solutions Ho | Add +0.7% | 2.55% | −0.50 |
| AMZN Amazon.com Inc. | Add +0.3% | 9.17% | −0.63 |
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 |