Breaking down the stocks Stockbridge bought, sold, and held in Q2 2025, including their holdings at the end of the quarter. All data sourced from Stockbridge's 13F filed on August 14, 2025.


Who is Stockbridge?

Stockbridge is the public equity investment arm of Berkshire Partners, a Boston-based private equity firm established in 1984. The firm focuses on building long-term concentrated positions in high-quality growth companies with sustainable competitive advantages. Stockbridge leverages Berkshire's extensive private equity experience to identify public companies with exceptional management teams and compelling business models.

Berkshirepartners.com/stockbridge
Wikipedia
Interview with Stockbridge's Rob Small on Transdigm
Q2 '25 13F filed with SEC

Portfolio Changes in Q2 2025

New positions

Stockbridge did not initiate any new positions during Q2 2025.

Bought

Stockbridge significantly increased its position in Taiwan Semiconductor (TSM) by over 1.2 million shares, more than doubling their holdings. The firm also added to positions in Veeva (VEEV), ServiceNow (NOW), Vulcan Materials (VMC), and Waste Connections (WCN).

Sold

Stockbridge trimmed several positions during the quarter, with the largest reductions in Guidewire Software (GWRE) and Amazon (AMZN). The firm also reduced holdings in Hilton (HLT), Deere (DE), Microsoft (MSFT), TransDigm (TDG), and Thermo Fisher (TMO).


Holdings at the end of Q2 2025

Ticker Company Weight Change Value
TDG TransDigm 15.8% Trimmed (-8%) $809.82M
AMZN Amazon 10.7% Trimmed (-13%) $544.8M
MSFT Microsoft 9.9% Trimmed (-4%) $504.46M
TSM Taiwan Semiconductor 9.8% Added (+136%) $502.36M
VEEV Veeva 8.8% Added (+11%) $449.62M
DE Deere 8.3% Trimmed (-5%) $424.92M
WCN Waste Connections 7.8% Added (+1%) $399.17M
VMC Vulcan Materials 7.2% Added (+2%) $370.27M
HLT Hilton 6.8% Trimmed (-9%) $348.21M
GWRE Guidewire Software 5.7% Trimmed (-29%) $293.87M
TMO Thermo Fisher 4.9% Trimmed (-5%) $248.12M
NOW ServiceNow 4.3% Added (+6%) $219.31M

Disclaimer: All posts are for informational purposes only. They are NOT a recommendation to buy or sell the securities discussed. Please do your own research and due diligence before investing your money.