Greenstone Partners & Co., 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 Oct 2026 | $499,304,934 | Pooled investment vehicles (100%) |
| Apr 2025 to Mar 2026 | $426,277,674 | Pooled investment vehicles (100%) |
| Aug 2024 to Mar 2025 | $219,736,003 | Pooled investment vehicles (100%) |
| Apr 2024 to Jun 2024 | — | — |
| Jun 2023 to Mar 2024 | — | — |
| May 2023 | $0 | — |
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: the S&P MidCap 400 as of 2026-06-30, active share 98.8%; sector active share 47.2% against the combined 13F book's sector weights.
Over time 23 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
8 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Industrials | 32.7% | $141,659,617 |
| Communication Services | 29.0% | $125,367,461 |
| Technology | 28.0% | $120,988,210 |
| Consumer Cyclical | 10.3% | $44,580,905 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| PCOR | Procore Technologies, Inc. | +390 | 672,813 | $27,329,664 | |
| SGI | Somnigroup International Inc. | +280 | 568,634 | $44,580,905 | |
| GWRE | Guidewire Software, Inc. | +265 | 404,584 | $49,784,061 | |
| APPF | Appfolio Inc | +120 | 273,617 | $43,874,485 | |
| CHTR | Charter Communications, Inc. | +9 | 174,167 | $24,768,289 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reducedNew Positions
Positions the filer opened this quarterSold Out
Positions the filer fully exited| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| XPO | XPO, Inc. | 27,715 | $5,391,953 | |
| No positions match the current search. | ||||
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| APP |
AppLovin Corp
Communication Services
|
Held | 195,251 | $100,599,172 | 23.25% | |
| VSTS |
Vestis Corp
Industrials
|
Held | 5,094,356 | $73,970,049 | 17.10% | |
| AYI |
Acuity Inc. (De)
Industrials
|
Held | 179,710 | $67,689,568 | 15.65% | |
| GWRE |
Guidewire Software, Inc.
Technology
|
Added | 404,584 | $49,784,061 | 11.51% | |
| SGI |
Somnigroup International Inc.
Consumer Cyclical
|
Added | 568,634 | $44,580,905 | 10.31% | |
| APPF |
Appfolio Inc
Technology
|
Added | 273,617 | $43,874,485 | 10.14% | |
| PCOR |
Procore Technologies, Inc.
Technology
|
Added | 672,813 | $27,329,664 | 6.32% | |
| CHTR |
Charter Communications, Inc.
Communication Services
|
Added | 174,167 | $24,768,289 | 5.73% |
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.