Sunriver Management LLC
13F holdings for Q2 2026 · GREENWICH, CT · filed August 13, 2026
Sunriver Management LLC reported $637M in 13F securities across 21 holdings for Q2 2026, in a Form 13F filed August 13, 2026. The largest positions were ARMK (9.4%), WCN (9.0%), SSNC (7.9%). Reported value rose 7.7% from the quarter before. It opened 11 new positions, added to 6, trimmed 4 and sold out of 8.
- 13F value Q2 2026
- $637M
- Holdings
- 21
- Change vs prior quarter
- +7.7%
- Rank by 13F value
- #3,350
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Top holdings
| Stock | Value | Weight | Shares | Change in shares | Move |
|---|---|---|---|---|---|
| ARMK Aramark | $60.1M | 9.4% | 1,056,474 | -24.4% | Trimmed |
| WCN Waste Connections Inc. | $57.3M | 9.0% | 343,513 | +6.5% | Added |
| SSNC SS&C Technologies Holdings Inc. | $50.5M | 7.9% | 813,251 | +1.9% | Added |
| DG Dollar General Corporation | $38.3M | 6.0% | 333,053 | New | New |
| FA First Advantage Corporation | $35.0M | 5.5% | 1,940,912 | -36.0% | Trimmed |
| BKNG Booking Holdings Inc. | $34.7M | 5.4% | 194,470 | New | New |
| LII Lennox International Inc. | $33.8M | 5.3% | 59,007 | New | New |
| LYV Live Nation Entertainment Inc. | $32.0M | 5.0% | 174,743 | +2.4% | Added |
| CNM Core & Main Inc. | $29.9M | 4.7% | 620,017 | New | New |
| WEX WEX Inc. | $28.6M | 4.5% | 202,518 | -0.6% | Trimmed |
| GPC Genuine Parts Company | $28.5M | 4.5% | 241,980 | New | New |
| BOBS Bob's Discount Furniture Inc. | $25.6M | 4.0% | 1,616,590 | +6.5% | Added |
| PFGC Performance Food Group Company | $24.6M | 3.9% | 220,456 | -36.1% | Trimmed |
| CAE CAE Inc. | $24.5M | 3.9% | 979,193 | +16.0% | Added |
| MGRC McGrath RentCorp | $24.0M | 3.8% | 198,684 | New | New |
| NSP Insperity Inc. | $21.4M | 3.4% | 516,995 | New | New |
| HURN Huron Consulting Group Inc. | $21.2M | 3.3% | 235,663 | +0.8% | Added |
| ROAD Construction Partners Inc. | $20.8M | 3.3% | 175,223 | New | New |
| WAY Waystar Holding Corp. | $17.6M | 2.8% | 855,000 | New | New |
| SOLS Solstice Advanced Materials Inc. | $17.4M | 2.7% | 196,879 | New | New |
| KFY Korn Ferry | $10.9M | 1.7% | 163,836 | New | New |
Share positions only, at the value reported for the end of Q2 2026. Weight is the share of $637M in share positions; options and bonds count in the 13F value but not here.
Biggest buys in Q2 2026
- DG Dollar General Corporation New+$38.3M
- BKNG Booking Holdings Inc. New+$34.7M
- LII Lennox International Inc. New+$33.8M
- CNM Core & Main Inc. New+$29.9M
- GPC Genuine Parts Company New+$28.5M
- MGRC McGrath RentCorp New+$24.0M
- NSP Insperity Inc. New+$21.4M
- ROAD Construction Partners Inc. New+$20.8M
- WAY Waystar Holding Corp. New+$17.6M
- SOLS Solstice Advanced Materials Inc. New+$17.4M
Biggest sells in Q2 2026
- OPLN OPENLANE Inc. Sold out-$44.3M
- VRRM Verra Mobility Corporation Sold out-$42.1M
- CDW CDW Corporation Sold out-$32.5M
- Cbiz Inc Sold out-$26.0M
- FIS Fidelity National Information Services Inc. Sold out-$25.7M
- TRU TransUnion Sold out-$23.0M
- LMT Lockheed Martin Corporation Sold out-$21.9M
- SWK Stanley Black & Decker Inc. Sold out-$20.8M
- FA First Advantage Corporation Trimmed-$19.7M
- ARMK Aramark Trimmed-$19.5M
The change in shares since Q1 2026, adjusted for stock splits and priced at the Q2 2026 value per share. 11 new, 6 added, 4 trimmed, 8 sold out.
Sector mix
- Consumer Discretionary59.7%
- Technology16.2%
- Industrials11.3%
- Utilities9.0%
- Miscellaneous3.9%
13F value by quarter
Schedule 13D and 13G filings by Sunriver Management LLC
Stakes above 5% of a company, filed within days rather than once a quarter.
- 2025-08-14IAS SCHEDULE 13G filed by Integral Ad Science Holding Corp.Schedule 13G
Questions about Sunriver Management LLC
- What does Sunriver Management LLC own?
- In its Form 13F for Q2 2026, Sunriver Management LLC reported 21 holdings worth $637M. The five largest were ARMK, WCN, SSNC, DG, FA.
- What did Sunriver Management LLC buy and sell in Q2 2026?
- Sunriver Management LLC opened 11 new positions, added to 6, trimmed 4 and sold out of 8 compared with the quarter before.
- When did Sunriver Management LLC file its latest 13F?
- Form 13F is due 45 days after each quarter ends. The Q2 2026 report was due August 14, 2026 and was filed August 13, 2026.
From Form 13F filed by Sunriver Management LLC (SEC CIK 0001663900) for the quarter ended June 30, 2026, via the SEC's Form 13F data sets. Amendments that restate a report replace it; amendments that add holdings are included. View on SEC EDGAR · All funds