Q2 2026 13F · SEC CIK 1505183
Stockbridge Partners LLC
Hedge fundFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $4.8B
- Reported positions
- 17
- Top holdings a year, 3 yrs
- +17.4%
- Assets under management
- $5.4B
Stockbridge Partners LLC is a hedge fund that reported 17 positions worth $4.8B in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Taiwan Semiconductor Manufac (TSM, 20.8%), Transdigm Group Inc (TDG, 12.2%), Alphabet Inc (GOOGL, 9.4%). A portfolio copying its top holdings returned 17.4% a year over the last 3 years, against 20.4% for the S&P 500.
Stockbridge Partners LLC holdings all 17 positions.
Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| TSMTaiwan Semiconductor Manufac | 20.8% | -3.7% | $990.0M |
| TDGTransdigm Group Inc | 12.2% | +0.0% | $578.5M |
| GOOGLAlphabet Inc | 9.4% | +28.3% | $447.7M |
| AMZNAmazon Com Inc Com | 8.9% | -28.2% | $423.3M |
| DEDeere & Co Com | 7.6% | +0.4% | $360.0M |
| FWONKLiberty Media Corp Del | 7.2% | +395.2% | $343.7M |
| VMCVulcan Matls Co Com | 6.6% | -6.6% | $314.5M |
| NVDANvidia Corporation Com | 5.5% | -15.5% | $259.2M |
| WCNWaste Connections Inc | 4.1% | -52.6% | $193.6M |
| VVisa Inc Com Cl A | 4.0% | +65.2% | $191.1M |
| ALSNAllison Transmission | 3.6% | +45.6% | $169.1M |
| MAMastercard Inc. | 3.5% | +55.3% | $164.3M |
| WWDWoodward Inc | 2.4% | — | $115.2M |
| GWREGuidewire Software Inc | 2.0% | +456.9% | $93.5M |
| VEEVVeeva Sys Inc | 1.5% | — | $71.8M |
| MLMMartin Marietta Matls Inc | 0.5% | +31.8% | $24.5M |
| TTANServiceTitan, Inc. | 0.3% | — | $13.3M |
What Stockbridge Partners LLC bought and sold in Q2 2026, against Q1 2026.
New positions
- WWD Woodward Inc2.4% of 13F
- VEEV Veeva Sys Inc1.5% of 13F
- TTAN ServiceTitan, Inc.0.3% of 13F
Added to
- GWRE Guidewire Software Inc+456.9% shares
- FWONK Liberty Media Corp Del+395.2% shares
- V Visa Inc Com Cl A+65.2% shares
- MA Mastercard Inc.+55.3% shares
- ALSN Allison Transmission+45.6% shares
- MLM Martin Marietta Matls Inc+31.8% shares
- GOOGL Alphabet Inc+28.3% shares
Reduced
- WCN Waste Connections Inc-52.6% shares
- AMZN Amazon Com Inc Com-28.2% shares
- NVDA Nvidia Corporation Com-15.5% shares
- VMC Vulcan Matls Co Com-6.6% shares
Sold out
- KLAC Kla Corpwas 4.7%
- MSFT Microsoft Corpwas 4.7%
Share counts compared with the Q1 2026 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- +5.0% /yr
- S&P 500 +20.1%
- 3 years
- +17.4% /yr
- S&P 500 +20.4%
- 5 years
- +9.2% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q2 2026 | $4.8B | 17 |
| Q1 2026 | $4.1B | 16 |
| Q4 2025 | $4.5B | 13 |
| Q3 2025 | $5.2B | 14 |
| Q2 2025 | $5.1B | 12 |
| Q1 2025 | $4.5B | 12 |
| Q4 2024 | $4.7B | 12 |
| Q3 2024 | $5.0B | 13 |
| Q2 2024 | $4.8B | 13 |
| Q1 2024 | $4.9B | 13 |
| Q4 2023 | $4.7B | 14 |
| Q3 2023 | $4.5B | 15 |
Questions about Stockbridge Partners LLC's portfolio
What stocks does Stockbridge Partners LLC own?
Stockbridge Partners LLC's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 17 positions worth $4.8B. The largest are Taiwan Semiconductor Manufac (TSM) at 20.8%, Transdigm Group Inc (TDG) at 12.2%, Alphabet Inc (GOOGL) at 9.4%, Amazon Com Inc Com (AMZN) at 8.9% and Deere & Co Com (DE) at 7.6%.
What did Stockbridge Partners LLC buy last quarter?
In Q2 2026, Stockbridge Partners LLC added a new position in Woodward Inc (WWD), a new position in Veeva Sys Inc (VEEV), a new position in ServiceTitan, Inc. (TTAN), Guidewire Software Inc (GWRE) (+456.9% shares), Liberty Media Corp Del (FWONK) (+395.2% shares) and Visa Inc Com Cl A (V) (+65.2% shares), compared with its Q1 2026 filing.
What did Stockbridge Partners LLC sell last quarter?
In Q2 2026, Stockbridge Partners LLC sold all of Kla Corp (KLAC), sold all of Microsoft Corp (MSFT), Waste Connections Inc (WCN) (-52.6% shares), Amazon Com Inc Com (AMZN) (-28.2% shares) and Nvidia Corporation Com (NVDA) (-15.5% shares), compared with its Q1 2026 filing.
How has Stockbridge Partners LLC's portfolio performed?
A portfolio copying Stockbridge Partners LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +17.4% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +5.0% against +20.1%. Over 5 years: +9.2% a year against +11.6%.
When is Stockbridge Partners LLC's next 13F filing due?
13F filings are due 45 days after each quarter ends. Stockbridge Partners LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Stockbridge Partners LLC manage?
Stockbridge Partners LLC reported $5.4B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $4.8B.