Stockbridge Partners
Boston, MAfiles as Stockbridge Partners LLC
$4.8bn in 17 US stocks at the end of 30 June 2026. The top 10 are 86.3% of the money. It changed about 20.6% of the portfolio this quarter.
Value
$4.8bn
Stocks
17
Top 10 share
86.3%
Turnover
20.6%
What changed this quarter
New
Bought for the first time this quarter.
- WoodwardWWD2.4% of the fund
- Veeva SystemsVEEV1.5% of the fund
- ServiceTitanTTAN0.3% of the fund
Added
Bought more of a stock they already held.
- AlphabetGOOGL9.4% of the fund+28%
- Liberty MediaFWONK7.2% of the fund+395%
- VisaV4.0% of the fund+65%
- Allison Transmission HoldingsALSN3.6% of the fund+46%
- MastercardMA3.5% of the fund+55%
- Guidewire SoftwareGWRE2.0% of the fund+457%
- Martin Marietta MaterialsMLM0.5% of the fund+32%
Cut
Sold some of their stake.
- Taiwan Semiconductor ManufacturingTSM20.8% of the fund-4%
- Amazon.comAMZN8.9% of the fund-28%
- Vulcan MaterialsVMC6.6% of the fund-7%
- NvidiaNVDA5.5% of the fund-15%
- Waste ConnectionsWCN4.1% of the fund-53%
Sold out
Sold their entire stake.
- KLAKLAC-100%
- MicrosoftMSFT-100%
Holdings
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| Taiwan Semiconductor ManufacturingTSM | 20.8% | $990m | 2,072,924 | -4% |
| TransDigm GroupTDG | 12.2% | $578m | 434,281 | Held |
| AlphabetGOOGL | 9.4% | $448m | 1,252,838 | +28% |
| Amazon.comAMZN | 8.9% | $423m | 1,776,149 | -28% |
| DeereDE | 7.6% | $360m | 567,456 | Held |
| Liberty MediaFWONK | 7.2% | $344m | 3,613,069 | +395% |
| Vulcan MaterialsVMC | 6.6% | $314m | 1,065,963 | -7% |
| NvidiaNVDA | 5.5% | $259m | 1,295,226 | -15% |
| Waste ConnectionsWCN | 4.1% | $194m | 1,161,217 | -53% |
| VisaV | 4.0% | $191m | 557,138 | +65% |
| Allison Transmission HoldingsALSN | 3.6% | $169m | 1,499,984 | +46% |
| MastercardMA | 3.5% | $164m | 319,922 | +55% |
| WoodwardWWD | 2.4% | $115m | 270,673 | New |
| Guidewire SoftwareGWRE | 2.0% | $93m | 759,827 | +457% |
| Veeva SystemsVEEV | 1.5% | $72m | 404,617 | New |
| Martin Marietta MaterialsMLM | 0.5% | $24m | 42,450 | +32% |
| ServiceTitanTTAN | 0.3% | $13m | 188,565 | New |
Over time and by industry
Value over time
Jun '25
Dec '25
Jun '26
Value is down 7.1% since 30 June 2025.
Where the money is
Technology28.5%
Industrials25.7%
Media & telecom16.7%
Retail & consumer8.9%
Financial services7.5%
Materials7.1%
Utilities4.1%
Health care1.5%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.