Greenbrier Partners Capital Management, LLC
Registered adviserRegulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
| Rosters | Regulatory AUM | Main clients |
|---|---|---|
| Apr 2026 to Nov 2026 | $1,540,584,722 | Pooled investment vehicles (100%) |
| Apr 2025 to Mar 2026 | $1,389,128,586 | Pooled investment vehicles (100%) |
| Mar 2024 to Mar 2025 | $1,032,609,673 | Pooled investment vehicles (100%) |
| May 2023 to Feb 2024 | $694,499,523 | Pooled investment vehicles (100%) |
| Apr 2023 | $694,499,523 | Pooled investment vehicles (100%) |
| Apr 2022 to Mar 2023 | $1,191,322,021 | Pooled investment vehicles (100%) |
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: the Nasdaq-100 as of 2026-06-30, active share 75.2%; sector active share 48.7% against the combined 13F book's sector weights.
Over time 26 measured quarters
How the bands are measured
Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.
Clone Performance
Build a hypothetical price-return history from this filer's public 13F holdings.
View clone backtestPortfolio Concentration
11 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Communication Services | 40.8% | $544,710,994 |
| Technology | 24.9% | $332,436,746 |
| Consumer Defensive | 15.5% | $207,421,763 |
| Consumer Cyclical | 11.1% | $147,567,734 |
| Financial Services | 6.8% | $90,111,167 |
| Industrials | 0.9% | $12,570,174 |
Last Quarter's Activity
Export CSVTrimmed
Positions the filer reduced| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| AAPL | Apple Inc. | −184,479 | 996,183 | $288,255,512 | |
| GOOGL | Alphabet Inc. | −52,057 | 395,307 | $141,270,862 | |
| GOOG | Alphabet Inc. | −51,376 | 411,372 | $145,350,068 | |
| META | Meta Platforms, Inc. | −26,608 | 368,492 | $207,567,858 | |
| AMZN | Amazon Com Inc | −2,071 | 619,148 | $147,567,734 | |
| COST | Costco Wholesale Corp | −742 | 221,730 | $207,421,763 | |
| MSFT | Microsoft Corp | −396 | 118,442 | $44,181,234 | |
| BRK-B | Berkshire Hathaway Inc | −269 | 80,435 | $40,248,869 | |
| MKL | Markel Group Inc. | −85 | 25,531 | $49,862,298 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterSold Out
Positions the filer fully exited| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| AAPL |
Apple Inc.
Technology
|
Reduced | 996,183 | $288,255,512 | 21.60% | |
| META |
Meta Platforms, Inc.
Communication Services
|
Reduced | 368,492 | $207,567,858 | 15.55% | |
| COST |
Costco Wholesale Corp
Consumer Defensive
|
Reduced | 221,730 | $207,421,763 | 15.54% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 619,148 | $147,567,734 | 11.06% | |
| GOOG |
Alphabet Inc.
Communication Services
|
Reduced | 411,372 | $145,350,068 | 10.89% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 395,307 | $141,270,862 | 10.58% | |
| SPOT |
Spotify Technology S.A.
Communication Services
|
Added | 110,039 | $50,522,206 | 3.78% | |
| MKL |
Markel Group Inc.
Financial Services
|
Reduced | 25,531 | $49,862,298 | 3.74% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 118,442 | $44,181,234 | 3.31% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Reduced | 80,435 | $40,248,869 | 3.02% | |
| CPRT |
Copart Inc
Industrials
|
Added | 445,909 | $12,570,174 | 0.94% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.