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Sunriver Management LLC
Sunriver Management LLC is an investment adviser and asset management firm headquartered in Greenwich, Connecticut, USA. Founded in 2015 by Randolph Willett Cook and his affiliates, the firm manages assets for institutional investors and high net-worth individuals, focusing on long-term value creation through diversified public equity investments. As of 2025, Sunriver reports 11 employees, most of them investment professionals.
Investment Strategy
Sunriver Management LLC pursues an active equity investment strategy, primarily investing in publicly traded U.S. equities across diverse sectors. Their portfolio construction emphasizes fundamental analysis, bottom-up research, and concentrated positions in companies with strong financials and growth prospects. Sunriver seeks to generate alpha for its clients through deep research and disciplined risk management, with a focus on long-term capital appreciation and portfolio diversification as evidenced by its mix of holdings including technology, industrials, and service companies.
Latest 13F Filing Activity
Sunriver Management LLC filed their most recent 13F report on Jun 30, 2025 disclosing 22 equity positions with a total 13F market value of $933M. The fund increased holdings in Aramark, Fiserv Inc., SS&C Technologies HLDGS Inc. among other positions. Sunriver Management LLC reduced exposure to Informatica Inc., First Advantage Corp. New, Stanley Black & Decker Inc. among others.
Top Holdings
Equity Positions (22)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
I IAS | INTEGRAL AD SCIENCE HLDNG CO | 7.86% | $73.3M | 8,822,914 | $10.40 | $8.31 | +$7.5M |
P PFGC | PERFORMANCE FOOD GROUP CO | 6.15% | $57.3M | 655,400 | $53.42 | $87.47 | +$107.5K |
K KAR | OPENLANE INC | 5.94% | $55.4M | 2,266,701 | $15.60 | $24.45 | +$11.8M |
V VRRM | VERRA MOBILITY CORP | 5.62% | $52.4M | 2,064,798 | $23.83 | $25.39 | +$9.2M |
H HURN | HURON CONSULTING GROUP INC | 5.58% | $52.0M | 378,211 | $107.96 | $137.54 | +$3.0M |
Industry Allocation
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