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Filers›Asset Manager›Sunriver Management LLC
DOSSIER · 13F-HR · Q1 2026

Sunriver Management LLC

Sunriver's asset manager based in Boston, MA — $591M in tracked AUM across 18 positions as of Q1 2026.

S
Sunriver·Boston, MA·Asset Manager
CIK 0001663900 · last filed Mar 31, 2026
Total AUM
$591M
▲ 17.8%
vs prior
Holdings
18
—
positions
Whale Score
70
70
strong
Activity
—
no data
changes this Q
Top sector
Tech
10% weight
concentration
AI Analysis · Q1 2026 · Q1 2026

Sunriver Management LLC filed its latest 13F-HR for Q1 2026. See the latest holdings and position changes below.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
ARMK
ARAMARK
$57M1.4M9.6%
02
SSNC
SS&C TECH HLDGS
$54M798K9.1%
03
WCN
WASTE CONNECTIONS INC
$52M323K8.9%
04
OPLN
OPENLANE INC
$44M1.5M7.5%
05
VRRM
VERRA MOBILITY CORP
$42M2.9M7.1%
06
FA
FIRST ADVANTAGE CORP NEW
$36M3.0M6.0%
07
CDW
CDW CORP
$32M268K5.5%
08
WEX
WEX INC
$31M204K5.3%
09
HURN
HURON CONSULTING GROUP INC
$30M234K5.0%
10
PFGC
PERFORMANCE FOOD GROUP CO
$30M345K5.0%

Filing history

Filing history loading…
AI Agent · grounded in Sunriver
haiku-4-5 · 18 positions indexed
Sector mix
  • Tech10%
  • Health Care39%
  • Cons. Disc.6%
  • Industrials12%
  • Energy21%
  • Other12%
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