Sunriver Management LLC

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1663900
Institutional-grade research for retail investors

13F Reported Value

$591.3M

Holdings

18

Latest Filing

2026-03-31

Filing Quarter

Q1 2026

Portfolio Overview

Sunriver Management LLC disclosed 18 positions worth $591.3M in its Form 13F-HR for Q1 2026, led by $ARMK (Aramark) at 9.6% of the equity portfolio, followed by $SSNC and $WCN. During the quarter the fund opened 4 new positions and exited 9 — including a new stake in $WCN and a full exit from $BOX. The portfolio is most concentrated in Consumer Discretionary (32.7% of disclosed assets). All figures are sourced directly from Sunriver Management LLC’s Form 13F-HR filing with the SEC under CIK 1663900.

Sector Allocation

Consumer DiscretionaryTechnologyIndustrialsUtilitiesConsumer StaplesCommunication Services

AUM History

Top Equity Holdings by Value

Quarterly Activity — Q1 2026

Click any card to unlock

Top Holdings

AI Quality Scored

Unlock AI quality scores for every holding

32-signal composite ranking on each of Sunriver Management LLC's 18 positions.

Showing top 10 of 18 holdings.

Sector Allocation

Consumer Discretionary

$193.3M

Technology

$141.4M

Industrials

$125.7M

Utilities

$52.4M

Consumer Staples

$29.6M

Communication Services

$26.0M

Financials

$23.0M

Full Holdings — Sunriver Management LLC (Q1 2026)

All 18 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.

#TickerCompanyValueWeightQoQQuality
1ARMK$ARMKAramark$56.7M9.6%+3%53
2SSNC$SSNCSS&C Technologies Holdings Inc$53.9M9.1%+26%67.2
3WCN$WCNWaste Connections, Inc.$52.4M8.9%NEW
4OPLN$OPLNOPENLANE, Inc.$44.3M7.5%+1%63.9
5VRRM$VRRMVERRA MOBILITY Corp$42.1M7.1%-0%66.1
6FA$FAFIRST ADVANTAGE CORP$35.7M6.0%+14%55.8
7CDW$CDWCDW Corp$32.5M5.5%+59%61.6
8WEX$WEXWEX Inc.$31.2M5.3%-38%49
9HURN$HURNHuron Consulting Group Inc.$29.8M5.0%-16%55.5
10PFGC$PFGCPerformance Food Group Co$29.6M5.0%-24%53.1
11LYV$LYVLive Nation Entertainment, Inc.$26.0M4.4%+14%55
12CBZ$CBZCBIZ, Inc.$26.0M4.4%-2%67
13FIS$FISFidelity National Information Services, Inc.$25.7M4.3%NEW69.6
14TRU$TRUTransUnion$23.0M3.9%-36%69.1
15CAE$CAECAE INC$22.0M3.7%NEW
16LMT$LMTLOCKHEED MARTIN CORP$21.9M3.7%-72%65
17SWK$SWKSTANLEY BLACK & DECKER, INC.$20.8M3.5%-32%52.4
18BOBS$BOBSBob's Discount Furniture, Inc.$17.8M3.0%NEW

New Positions (4)

WCN$WCN Waste Connections, Inc.$52.4M
FIS$FIS Fidelity National Information Services, Inc.$25.7M
CAE$CAE CAE INC$22.0M
BOBS$BOBS Bob's Discount Furniture, Inc.$17.8M

Exited Positions (9)

BOX$BOX BOX INC
RTO$RTO RENTOKIL INITIAL PLC /FI
SYY$SYY SYSCO CORP
NABL$NABL N-able, Inc.
HII$HII HUNTINGTON INGALLS INDUSTRIES, INC.
IQV$IQV IQVIA HOLDINGS INC.
ACVA$ACVA ACV Auctions Inc.
RPAY$RPAY Repay Holdings Corp
CCC$CCC CCC Intelligent Solutions Holdings Inc.

Browse Top Institutional Investors

13F Pro tracks 8,700+ institutional investors filing 13F reports with the SEC.

to search all 8,700+ institutional filers.

Available Analysis

13F Pro tracks comprehensive institutional data for Sunriver Management LLC including:

Full 13F portfolio with all holdings
Quarter-over-quarter position changes
Accumulation & distribution patterns
Sector allocation breakdown
Historical portfolio evolution
New positions & complete exits
Concentration analysis
Peer comparison with similar funds
AI-powered portfolio insights

Track Sunriver Management LLC's Full Portfolio

See every holding, quarter-over-quarter changes, sector allocation, and accumulation patterns for Sunriver Management LLC and 8,700+ other institutional investors.

View Pricing

Free tier includes full 13F search and fund profiles. Pro starts at $6.67/mo (billed annually).

Passwordless sign-in · Payments by Stripe · Auth by Clerk

AI-Powered Hedge Fund Analysis: Sunriver Management LLC

13F Pro is an AI hedge fund tracker and stock research platform. For Sunriver Management LLC (SEC CIK: 1663900), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in Sunriver Management LLC's portfolio is scored on a 32-signal AI quality ranking (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.