13F Insight
DOSSIER · 13F-HR · Q1 2026

Sunriver Management LLC

$591M in tracked AUM across 18 positions as of Q1 2026.

SM
CIK 0001663900 · last filed Mar 31, 2026
Total AUM
$591M
as of Q1 2026
Holdings
18
—
positions
Whale Score
67
67
tracked
Activity
—
no data
changes this Q
AI Analysis · 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

2026Q1Mar 31
$591M▼ 38.0%
18 positionsView →2025Q4Dec 31
$954M▲ 3.7%
23 positionsView →2025Q3Sep 30
$920M▼ 1.4%
21 positionsView →2025Q2Jun 30
$933M▲ 35.1%
23 positionsLocked2025Q1Mar 31
$690M▼ 17.4%
18 positionsLocked2024Q4Dec 31
$836M▲ 2.7%
19 positionsLocked2024Q3Sep 30
$813M▲ 3.0%
17 positionsLocked2024Q2Jun 30
$790M▲ 3.2%
20 positionsLocked2024Q1Mar 31
$765M▲ 19.9%
20 positionsLocked2023Q4Dec 31
$638M▲ 20.7%
22 positionsLocked2023Q3Sep 30
$529M▲ 6.7%
19 positionsLocked2023Q2Jun 30
$496M▲ 3.4%
17 positionsLocked
Showing 12 of 39