Institutional Manager · CIK 0002056320
Rockbridge Capital Management LLC
ALEXANDRIA, VA · File #028-25155
Latest AUM
$165.6M
Positions
31
Top-10 Concentration
80.8%
Filings
5
Portfolio Value Over Time
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | DigitalBridge Group Inc Cl A N | DBRG-PJ | -363,158 | -$5.6M | +$1.4M |
| ADD | CCC Intelligent Solutions Hld | CCC | +317,250 | +$2.5M | -$468,928 |
| EXITED | Amrize Ltd | H2927K103 | -39,239 | -$1.9M | $0 |
| ADD | Visa Inc Cl A | V | +5,293 | +$1.9M | +$137,506 |
| NEW | Kinsale Cap Group Inc | 49714P108 | +2,490 | +$973,889 | $0 |
| REDUCE | Amazon.Com Inc | AMZN | -3,973 | -$917,048 | +$871,774 |
| NEW | Carmax Inc | KMX | +18,806 | +$726,664 | $0 |
| NEW | State Street Spdr S&P 500 Etf | SPY | +1,000 | +$681,920 | $0 |
| NEW | Akre Focus ETF | 74316P579 | +5,887 | +$385,657 | $0 |
| REDUCE | American Tower Corp | 03027X100 | -1,794 | -$314,973 | -$1.5M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202531 pos · $165.6M
- 13F HOLDINGS REPORTQ/E Sep 202529 pos · $169.4M
- 13F HOLDINGS REPORTQ/E Jun 202527 pos · $175.7M
- 13F HOLDINGS REPORTQ/E Mar 202524 pos · $163.4M
- 13F HOLDINGS REPORTQ/E Dec 202424 pos · $175.9M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Markel Group Inc | MKL | 8,997 | $19.3M | 11.68% |
| 2 | Amazon.Com Inc | AMZN | 73,518 | $17.0M | 10.24% |
| 3 | Microsoft Corp | MSFT | 33,699 | $16.3M | 9.84% |
| 4 | American Tower Corp | 03027X100 | 88,380 | $15.5M | 9.37% |
| 5 | O'Reilly Automotive Inc | 67103H107 | 161,885 | $14.8M | 8.91% |
| 6 | Berkshire Hathaway Inc Cl B Ne | BRK-A | 24,379 | $12.3M | 7.40% |
| 7 | Mastercard Incorporated Cl A | MA | 18,183 | $10.4M | 6.27% |
| 8 | Copart Inc | CPRT | 261,067 | $10.2M | 6.17% |
| 9 | Apple Inc | AAPL | 36,175 | $9.8M | 5.94% |
| 10 | Lockheed Martin Corp | LMT | 17,253 | $8.3M | 5.04% |
| 11 | Visa Inc Cl A | V | 20,031 | $7.0M | 4.24% |
| 12 | Alphabet Inc Cap Stock Cl A | GOOG | 21,666 | $6.8M | 4.09% |
| 13 | CCC Intelligent Solutions Hld | CCC | 721,499 | $5.7M | 3.46% |
| 14 | Builders Firstsource Inc | BLDR | 35,738 | $3.7M | 2.22% |
| 15 | Universal Display Corp | OLED | 11,748 | $1.4M | 0.83% |
| 16 | SBA Communications Corp Cl A | SBAC | 5,047 | $976,241 | 0.59% |
| 17 | Kinsale Cap Group Inc | 49714P108 | 2,490 | $973,889 | 0.59% |
| 18 | JPMorgan Chase & Co | VYLD | 2,424 | $781,061 | 0.47% |
| 19 | Carmax Inc | KMX | 18,806 | $726,664 | 0.44% |
| 20 | State Street Spdr S&P 500 Etf | SPY | 1,000 | $681,920 | 0.41% |