Institutional Manager · CIK 0001663900
Sunriver Management LLC
GREENWICH, CT · File #028-17348
Latest AUM
$953.9M
Positions
23
Top-10 Concentration
55.7%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| EXITED | INTEGRAL AD SCIENCE HLDNG CO | 45828L108 | -7,120,157 | -$72.4M | $0 |
| NEW | LOCKHEED MARTIN CORP | LMT | +129,313 | +$62.5M | $0 |
| NEW | TRANSUNION | TRU | +517,921 | +$44.4M | $0 |
| EXITED | JAMF HLDG CORP | 47074L105 | -3,893,883 | -$41.7M | $0 |
| EXITED | DOLLAR TREE INC | 256746108 | -389,168 | -$36.7M | $0 |
| REDUCE | HURON CONSULTING GROUP INC | HURN | -172,896 | -$29.9M | +$11.8M |
| NEW | ACV AUCTIONS INC | ACVA | +2,963,578 | +$23.8M | $0 |
| NEW | CDW CORP | CDW | +168,982 | +$23.0M | $0 |
| NEW | LIVE NATION ENTERTAINMENT IN | LYV | +150,000 | +$21.4M | $0 |
| ADD | CBIZ INC | CBZ | +392,587 | +$19.8M | -$1.5M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202523 pos · $953.9M
- 13F HOLDINGS REPORTQ/E Sep 202521 pos · $920.0M
- 13F HOLDINGS REPORTQ/E Jun 202523 pos · $932.6M
- 13F HOLDINGS REPORTQ/E Mar 202522 pos · $810.3M
- 13F HOLDINGS REPORTQ/E Dec 202419 pos · $835.7M
- 13F HOLDINGS REPORTQ/E Sep 202417 pos · $813.5M
- 13F HOLDINGS REPORTQ/E Jun 202420 pos · $790.0M
- 13F HOLDINGS REPORTQ/E Mar 202420 pos · $765.2M
- 13F HOLDINGS REPORTQ/E Dec 202319 pos · $528.9M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | VERRA MOBILITY CORP | VRRM | 2,956,976 | $66.3M | 6.95% |
| 2 | LOCKHEED MARTIN CORP | LMT | 129,313 | $62.5M | 6.56% |
| 3 | SS&C TECHNOLOGIES HLDGS INC | SSNC | 630,879 | $55.2M | 5.78% |
| 4 | BOX INC | BXCAP | 1,741,267 | $52.1M | 5.46% |
| 5 | RENTOKIL INITIAL PLC | RKLIF | 1,697,919 | $50.0M | 5.24% |
| 6 | CBIZ INC | CBZ | 989,349 | $49.9M | 5.23% |
| 7 | ARAMARK | ARMK | 1,351,397 | $49.8M | 5.22% |
| 8 | WEX INC | WEX | 329,177 | $49.0M | 5.14% |
| 9 | HURON CONSULTING GROUP INC | HURN | 279,089 | $48.3M | 5.06% |
| 10 | SYSCO CORP | SYY | 652,768 | $48.1M | 5.04% |
| 11 | N-ABLE INC | NABL | 6,134,573 | $45.9M | 4.81% |
| 12 | OPENLANE INC | OPLN | 1,498,562 | $44.6M | 4.68% |
| 13 | TRANSUNION | TRU | 517,921 | $44.4M | 4.66% |
| 14 | PERFORMANCE FOOD GROUP CO | PFGC | 454,315 | $40.9M | 4.28% |
| 15 | HUNTINGTON INGALLS INDS INC | 446413106 | 115,217 | $39.2M | 4.11% |
| 16 | FIRST ADVANTAGE CORP NEW | FA | 2,661,286 | $38.7M | 4.05% |
| 17 | IQVIA HLDGS INC | IQV | 163,513 | $36.9M | 3.86% |
| 18 | STANLEY BLACK & DECKER INC | SWK | 433,673 | $32.2M | 3.38% |
| 19 | ACV AUCTIONS INC | ACVA | 2,963,578 | $23.8M | 2.49% |
| 20 | CDW CORP | CDW | 168,982 | $23.0M | 2.41% |