Rockbridge Asset Management LLC — 13F Holdings & Portfolio
CIK 2056320 · latest 13F-HR filed 2026-08-10
Rockbridge Asset Management LLC manages $155.1M in 13F-reported U.S. long-equity assets across 31 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are MKL (12.07%), AMZN (9.42%), ORLY (8.52%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions, exited 0, added to 9, and trimmed 6.
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.
SUITE 625
ALEXANDRIA, VA 22314
$155.1M
Long-equity book
31
Distinct positions
2026-06-30
Filed 2026-08-10
+4 / −0 / ↑9 / ↓6
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Copart Inc$3.9M +42.4%
- Amazon.Com Inc$1.9M +14.6%
- Alphabet Inc Cap Stock Cl A$1.4M +24.1%
- Apple Inc$1.1M +13.3%
- Builders Firstsource Inc$529.1K +19.5%
Top Trims
- CCC Intelligent Solutions Hld-$2.9M -45.2%
- Lockheed Martin Corp-$1.6M -16.7%
- American Tower Corp-$1.4M -10.0%
- Kinsale Cap Group Inc-$939.0K -24.1%
- Chevron Corp-$110.9K -19.9%
New Positions
- Kla Corp New$340.9K
- Lam Research Corp New$316.3K
- Ge Vernova Inc$256.1K
- N-Able Inc Common Stock$53.9K
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 | Markel Group Inc | MKL | 570535104 | $18.7M | 12.07% | 9,588 | SH |
| 2 | Amazon.Com Inc | AMZN | 023135106 | $14.6M | 9.42% | 61,330 | SH |
| 3 | O'Reilly Automotive Inc | ORLY | 67103H107 | $13.2M | 8.52% | 143,595 | SH |
| 4 | Copart Inc | CPRT | 217204106 | $13.0M | 8.41% | 462,711 | SH |
| 5 | American Tower Corp | AMT | 03027X100 | $12.9M | 8.31% | 78,863 | SH |
| 6 | Microsoft Corp | MSFT | 594918104 | $11.5M | 7.41% | 30,805 | SH |
| 7 | Berkshire Hathaway Inc Cl B Ne | BRK.B | 084670702 | $11.4M | 7.33% | 22,730 | SH |
| 8 | Apple Inc | AAPL | 037833100 | $9.7M | 6.26% | 33,578 | SH |
| 9 | Mastercard Incorporated Cl A | MA | 57636Q104 | $8.2M | 5.29% | 15,992 | SH |
| 10 | Lockheed Martin Corp | LMT | 539830109 | $8.0M | 5.17% | 15,739 | SH |
| 11 | Visa Inc Cl A | V | 92826C839 | $7.5M | 4.84% | 21,876 | SH |
| 12 | Alphabet Inc Cap Stock Cl A | GOOGL | 02079K305 | $7.3M | 4.73% | 20,544 | SH |
| 13 | CCC Intelligent Solutions Hld | CCC | 12510Q100 | $3.5M | 2.25% | 677,501 | SH |
| 14 | Builders Firstsource Inc | BLDR | 12008R107 | $3.2M | 2.09% | 36,192 | SH |
| 15 | Kinsale Cap Group Inc | KNSL | 49714P108 | $3.0M | 1.90% | 8,949 | SH |
| 16 | State Street Spdr S&P 500 Etf Put | SPY | 78462F103 | $2.6M | 1.68% | 3,500 | SH |
| 17 | CBRE Group Inc Cl A | CBRE | 12504L109 | $1.5M | 0.98% | 11,295 | SH |
| 18 | SBA Communications Corp Cl A | SBAC | 78410G104 | $840.5K | 0.54% | 4,763 | SH |
| 19 | JPMorgan Chase & Co | JPM | 46625H100 | $793.4K | 0.51% | 2,424 | SH |
| 20 | Akre Focus ETF | AKRE | 74316P579 | $569.6K | 0.37% | 10,709 | SH |
| 21 | Chevron Corp | CVX | 166764100 | $446.7K | 0.29% | 2,695 | SH |
| 22 | Kla Corp New | KLAC | 482480100 | $340.9K | 0.22% | 1,130 | SH |
| 23 | Ge Aerospace | GE | 369604301 | $327.0K | 0.21% | 875 | SH |
| 24 | Lam Research Corp New | LRCX | 512807306 | $316.3K | 0.20% | 730 | SH |
| 25 | MPLX LP Unit Rep Ltd | MPLX | 55336V100 | $303.1K | 0.20% | 5,381 | SH |
| 26 | American Electric Power Co Inc | AEP | 025537101 | $289.5K | 0.19% | 2,116 | SH |
| 27 | Broadcom Inc | AVGO | 11135F101 | $264.4K | 0.17% | 700 | SH |
| 28 | Ge Vernova Inc | GEV | 36828A101 | $256.1K | 0.17% | 218 | SH |
| 29 | Procter And Gamble Co | PG | 742718109 | $252.4K | 0.16% | 1,721 | SH |
| 30 | Isoenergy Ltd New | ISOU | 46500E867 | $99.7K | 0.06% | 10,000 | SH |
| 31 | N-Able Inc Common Stock | NABL | 62878D100 | $53.9K | 0.03% | 14,680 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-10 | $155.1M | 31 | 0002056320-26-000008 |
| 2026-03-31 | 2026-05-15 | $148.9M | 27 | 0002056320-26-000006 |
| 2025-12-31 | 2026-02-12 | $165.6M | 31 | 0002056320-26-000003 |
| 2025-09-30 | 2025-11-12 | $169.4M | 29 | 0002056320-25-000009 |