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Form 13F-HR/A Sunriver Management LLC For: Jun 30

August 15, 2022 2:44 PM EDT

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The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 06-30-2022
Check here if Amendment X Amendment Number: 1
This Amendment (Check only one.): X is a restatement.
  adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Sunriver Management LLC
Address: 2 Sound View Drive
2nd Floor
Greenwich , CT06830
Form 13F File Number: 028-17348

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: John Stadnyk
Title: Chief Financial Officer / Chief Compliance Officer
Phone: 203-900-3900
Signature, Place, and Date of Signing:
/s/ John Stadnyk Greenwich , CT 08-15-2022
[Signature] [City, State] [Date]
Report Type (Check only one.):
X 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
  13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 18
Form 13F Information Table Value Total: 631,233
(thousands)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name

List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Expires: July 31, 2015
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
BOX INC CL A 10316T104 42,751 1,700,505 SH SOLE 1,700,505 0 0
CLARIVATE PLC ORD SHS G21810109 33,751 2,435,167 SH SOLE 2,435,167 0 0
DIVERSEY HLDGS LTD ORD SHS G28923103 28,715 4,350,798 SH SOLE 4,350,798 0 0
DOLBY LABORATORIES INC COM CL A 25659T107 25,228 352,538 SH SOLE 352,538 0 0
DUN & BRADSTREET HLDGS INC COM 26484T106 55,672 3,704,048 SH SOLE 3,704,048 0 0
FIDELITY NATL INFORMATION SV COM 31620M106 33,020 360,204 SH SOLE 360,204 0 0
FISERV INC COM 337738108 58,149 653,580 SH SOLE 653,580 0 0
INSPERITY INC COM 45778Q107 18,816 188,482 SH SOLE 188,482 0 0
MASONITE INTL CORP COM 575385109 19,708 256,518 SH SOLE 256,518 0 0
N-ABLE INC COMMON STOCK 62878D100 33,522 3,724,704 SH SOLE 3,724,704 0 0
NEOGAMES S A SHS L6673X107 26,417 1,969,934 SH SOLE 1,969,934 0 0
NEW RELIC INC COM 64829B100 31,437 628,121 SH SOLE 628,121 0 0
PERFORMANCE FOOD GROUP CO COM 71377A103 38,035 827,199 SH SOLE 827,199 0 0
R1 RCM INC COM 77634L105 46,733 2,229,620 SH SOLE 2,229,620 0 0
SS&C TECHNOLOGIES HLDGS INC COM 78467J100 53,490 921,126 SH SOLE 921,126 0 0
TAKE-TWO INTERACTIVE SOFTWAR COM 874054109 35,188 287,178 SH SOLE 287,178 0 0
US FOODS HLDG CORP COM 912008109 13,098 426,928 SH SOLE 426,928 0 0
VERRA MOBILITY CORP CL A COM STK 92511U102 37,503 2,387,235 SH SOLE 2,387,235 0 0


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