Funds · 13F filer · Greenwich, CT

Sunriver Management LLC

$636.8M in 21 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+3.9%S&P 500 +20.9%
3y return+12.7%S&P 500 +68.5%
5y return+8.6%S&P 500 +74.5%
10y return+134.9%S&P 500 +256.5%

These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.

$100 invested in its stock picks

Since June 30, 2016: $235 against $357 in the S&P 500.2

Sunriver Management LLCS&P 500 (SPY)
$100$35720162026

Top holdings

At the end of June 30, 2026. Change is in shares since the quarter before.2

StockValueShare of portfolioChange
ARMKAramark$60.1M9.4%−24.4%
WCNWaste Connections Inc$57.3M9.0%+6.5%
SSNCSs&c Tech Hldgs$50.5M7.9%+1.9%
DGDollar Gen Corp$38.3M6.0%New
FAFirst Advantage Corp New$35.0M5.5%−36.0%
BKNGBooking Holdings Inc$34.7M5.4%New
LIILennox Intl Inc$33.8M5.3%New
LYVLive Nation Entertainment In$32.0M5.0%+2.4%
CNMCore & Main Inc$29.9M4.7%New
WEXWex Inc$28.6M4.5%
GPCGenuine Parts Co$28.5M4.5%New
BOBSBobs Disc Furniture Inc$25.6M4.0%+6.5%
PFGCPerformance Food Group Co$24.6M3.9%−36.1%
CAECae Inc$24.5M3.9%+16.0%
MGRCMcgrath Rentcorp$24.0M3.8%New
NSPInsperity Inc$21.4M3.4%New
HURNHuron Consulting Group Inc$21.2M3.3%
ROADConstruction Partners Inc$20.8M3.3%New
WAYWaystar Hldg Corp$17.6M2.8%New
SOLSSolstice Advanced Matls Inc$17.4M2.7%New
KFYKorn Ferry$10.9M1.7%New

Best picks still held

How each current holding has done since the quarter it first appeared in its filings (up to six years back).

StockHeld sinceReturn sinceNow worth
PFGCPerformance Food Group CoDecember 31, 2021+143.6%$24.6M
ARMKAramarkJune 30, 2025+35.9%$60.1M
BOBSBobs Disc Furniture IncMarch 31, 2026+34.6%$25.6M
FAFirst Advantage Corp NewSeptember 30, 2023+30.9%$35.0M
LYVLive Nation Entertainment InDecember 31, 2025+28.5%$32.0M
WCNWaste Connections IncMarch 31, 2026+2.6%$57.3M
CAECae IncMarch 31, 2026−3.8%$24.5M
HURNHuron Consulting Group IncJune 30, 2024−8.5%$21.2M
SSNCSs&c Tech HldgsJune 30, 2025−25.1%$50.5M
WEXWex IncSeptember 30, 2024−32.7%$28.6M

Sold off last quarter

  • OPLNOpenlane Inc was $44.3M
  • VRRMVerra Mobility Corp was $42.1M
  • CDWCdw Corp was $32.5M
  • CBZCbiz Inc was $26.0M
  • FISFidelity Natl Information Sv was $25.7M
  • TRUTransunion was $23.0M
  • LMTLockheed Martin Corp was $21.9M
  • SWKStanley Black & Decker Inc was $20.8M

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+13.8%+14.8%
March 31, 2026−12.8%−4.6%
December 31, 2025+2.3%+2.4%
September 30, 2025+2.4%+7.8%
June 30, 2025+5.2%+10.5%
March 31, 2025−9.3%−4.6%
December 31, 2024+1.7%+2.1%
September 30, 2024+8.0%+5.4%
June 30, 2024−3.7%+4.0%
March 31, 2024+6.4%+10.0%
December 31, 2023+11.0%+11.2%
September 30, 2023−9.1%−3.6%
June 30, 2023+8.9%+8.3%
March 31, 2023+14.2%+7.0%
December 31, 2022+1.2%+7.1%
September 30, 2022−8.7%−5.3%
June 30, 2022−12.0%−16.5%
March 31, 2022−6.4%−4.9%
December 31, 2021+5.4%+10.7%
September 30, 2021−3.4%+0.3%

Sources

Every number on this page points here. Each one links to the public record.

  1. 1
    CIK 1663900
  2. 2
    Filed August 13, 2026 · accession 0001892688-26-000115