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Robert J. Small / Berkshire Partners

Stockbridge Partners was launched by Berkshire Partners in 2007 and is run by Robert J. Small, who has been with the parent firm since 1992. A former employee of Goldman Sachs and Bain & Co., Small has helped his fund grow to manage more than $2 billion in assets. His portfolio is diversified among several sectors, with industrial and consumer discretionary stocks accounting for more than half of his picks. Robert Small’s investment decisions are long-term oriented and he focuses only on a handful of companies. His top bet continues to be TransDigm Group Incorporated (NYSE:TDG), with Stockbridge Partners holding 1.33 million shares worth just shy of $300 million of the company. During the second quarter, Small made a big play in SBA Communications Corporation (NASDAQ:SBAC), boosting his stake by 75% to 1.04 million shares valued at $120 million.

Robert J. Small / Berkshire Partners
Robert J. Small / Berkshire Partners
Stockbridge Partners

Among the hedge funds that we track, 12 West Capital Management, led by Joel Ramin, holds the biggest investment in Advanced Drainage Systems Inc (NYSE:WMS), of 4.27 million shares valued at $125 million. Jim Simons is also bullish on this stock, having initiated a position during the second quarter of 2015, of 136,177 shares valued at $3.99 million. A manufacturer of water management products, Advanced Drainage Systems Inc (NYSE:WMS) has a market cap of $1.46 billion and pays an annual dividend of $0.20. So far this year, the stock has been on an uptrend, finishing yesterday’s trading session at $28.08 per share. The company is currently entangled in a lawsuit, having allegedly released misleading financial statements to investors. Investor suspicions were confirmed when the company delayed its annual report for the fiscal year ending March 31, 2015 and announced that certain changes would be made to the previously-issued earnings reports.

Disclosure: None

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