Rockbridge Asset Management
Rockbridge Asset Management reported 30 stocks worth $153M in its 13F filing for Q2 2026, filed Aug 10, 2026. Its largest holdings are MKL (12.3%), AMZN (9.6%) and ORLY (8.7%). Compared with Q1 2026, the fund opened new positions in KLAC, LRCX and GEV, added to MKL, AMZN and CPRT and trimmed ORLY, AMT and MSFT.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 7 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  MKL Markel Group Inc | $18.7M | 12.3% | 9,588 | +199 (+2%) | 7 of 7 | |
| 2 |  AMZN Amazon Com Inc | $14.6M | 9.6% | 61K | +70 (+0%) | 7 of 7 | |
| 3 |  ORLY O Reilly Automotive Inc | $13.2M | 8.7% | 144K | −2,289 (−2%) | 7 of 7 | |
| 4 |  CPRT Copart Inc | $13M | 8.6% | 463K | +187K (+68%) | 7 of 7 | |
| 5 |  AMT American Tower Corp New | $12.9M | 8.5% | 79K | −4,147 (−5%) | 7 of 7 | |
| 6 |  MSFT Microsoft Corp | $11.5M | 7.5% | 31K | −44 (−0%) | 7 of 7 | |
| 7 |  BRK.B Berkshire Hathaway Inc Del | $11.4M | 7.5% | 23K | −130 (−1%) | 7 of 7 | |
| 8 |  AAPL Apple Inc | $9.7M | 6.4% | 34K | −210 (−1%) | 7 of 7 | |
| 9 |  MA Mastercard Incorporated | $8.2M | 5.4% | 16K | −556 (−3%) | 7 of 7 | |
| 10 |  LMT Lockheed Martin Corp | $8M | 5.3% | 16K | −194 (−1%) | 7 of 7 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
 SPY Spdr S&P 500 ETF TR | Put | $2.6M | 3,500 | +2,500 |
Reported value
last 7 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 10, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Rockbridge Asset Management 13F FAQ
What does Rockbridge Asset Management own?
Rockbridge Asset Management reported 30 stocks worth $153M in its 13F filing for Q2 2026, filed Aug 10, 2026. Its largest holdings are MKL (12.3%), AMZN (9.6%) and ORLY (8.7%). The table above lists every position in the filing (the top 10 without an account).
What did Rockbridge Asset Management buy and sell in Q2 2026?
Compared with Q1 2026: 4 new positions, 5 added to, 12 trimmed and 0 sold out. New positions include KLAC, LRCX and GEV.
When will Rockbridge Asset Management file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Rockbridge Asset Management's portfolio worth?
The Q2 2026 filing reports $153M in US stocks ($155M including options). That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.