Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Markel Group Inc.COM | COM | $18.7M | 12.1% |
| Amazon.com Inc.COM | COM | $14.6M | 9.4% |
| O'reilly Automotive Inc.COM | COM | $13.2M | 8.5% |
| Copart Inc.COM | COM | $13M | 8.4% |
| American Tower Corp.COM | COM | $12.9M | 8.3% |
| Microsoft Corp.COM | COM | $11.5M | 7.4% |
| Berkshire Hathaway Inc. CL B NeCOM | COM | $11.4M | 7.3% |
| Apple Inc.COM | COM | $9.72M | 6.3% |
| Mastercard Incorporated CL ACOM | COM | $8.21M | 5.3% |
| Lockheed Martin Corp.COM | COM | $8.02M | 5.2% |
| Visa Inc. CL ACOM | COM | $7.51M | 4.8% |
| Alphabet Inc. Cap Stock CL ACOM | COM | $7.34M | 4.7% |
| Ccc Intelligent Solutions HldCOM | COM | $3.5M | 2.3% |
| Builders Firstsource Inc.COM | COM | $3.24M | 2.1% |
| Kinsale Cap Group Inc.COM | COM | $2.95M | 1.9% |
| State Street SPDR S&P 500 ETF (put option)COM | COM | $2.61M | 1.7% |
| CBRE Group Inc. CL ACOM | COM | $1.52M | 1.0% |
| SBA Communications Corp. CL ACOM | COM | $840K | 0.5% |
| JPMORGAN Chase & CoCOM | COM | $793K | 0.5% |
| Akre Focus ETFCOM | COM | $570K | 0.4% |
| Chevron Corp.COM | COM | $447K | 0.3% |
| KLA Corp. NewCOM | COM | $341K | 0.2% |
| GE AerospaceCOM | COM | $327K | 0.2% |
| Lam Research Corp. NewCOM | COM | $316K | 0.2% |
| Mplx LP Unit Rep LtdCOM | COM | $303K | 0.2% |
| American Electric Power Co Inc.COM | COM | $289K | 0.2% |
| Broadcom Inc.COM | COM | $264K | 0.2% |
| GE Vernova Inc.COM | COM | $256K | 0.2% |
| Procter And Gamble CoCOM | COM | $252K | 0.2% |
| Isoenergy Ltd NewCOM | COM | $99.7K | 0.1% |
| N-able Inc. Common StockCOM | COM | $53.9K | 0.0% |
- Class
- COM
- Share
- 12.1%
- Class
- COM
- Share
- 9.4%
- Class
- COM
- Share
- 8.5%
- Class
- COM
- Share
- 8.4%
- Class
- COM
- Share
- 8.3%
- Class
- COM
- Share
- 7.4%
- Class
- COM
- Share
- 7.3%
- Class
- COM
- Share
- 6.3%
- Class
- COM
- Share
- 5.3%
- Class
- COM
- Share
- 5.2%
- Class
- COM
- Share
- 4.8%
- Class
- COM
- Share
- 4.7%
- Class
- COM
- Share
- 2.3%
- Class
- COM
- Share
- 2.1%
- Class
- COM
- Share
- 1.9%
- Class
- COM
- Share
- 1.7%
- Class
- COM
- Share
- 1.0%
- Class
- COM
- Share
- 0.5%
- Class
- COM
- Share
- 0.5%
- Class
- COM
- Share
- 0.4%
- Class
- COM
- Share
- 0.3%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.1%
- Class
- COM
- Share
- 0.0%
The share class is shown on a wider screen.
The 31 largest of 31 positions by value, with holdings of the same security combined. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 2056320
- File number
- 028-25155
- Options
- 0 call, 1 put
- In the 25 largest
- 99.2%
- Prior quarter
- $149M at 31 March 2026
- Positions opened
- 4
- Positions closed
- 0
Common questions
What are Rockbridge Asset Management’s 13F holdings worth?
$155 million across 31 positions for the quarter ended 30 June 2026.
What is Rockbridge Asset Management’s largest 13F holding?
Markel Group Inc (COM) was the largest position at $18.7 million, or 12.1% of reported 13F value, as of 30 June 2026.
How concentrated is Rockbridge Asset Management’s 13F portfolio?
The ten largest positions accounted for 78.2% of reported value and the twenty-five largest for 99.2%, across 31 positions as of 30 June 2026.
Does Form 13F show everything Rockbridge Asset Management manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does Rockbridge Asset Management file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.