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: 09-30-2023
Check here if Amendment    Amendment Number:
This Amendment (Check only one.):    is a restatement.
   adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: SUN LIFE FINANCIAL INC
Address: Sun Life Assurance CO of Canada
One York Street
Toronto, A6  M5J 0B6
Form 13F File Number: 028-05799

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: Randolph Brown
Title: CIO, Sun Life
Phone: 781-416-2297
Signature, Place, and Date of Signing:
/s/ Randolph Brown Wellesley HillsMA 11-13-2023
[Signature] [City, State] [Date]
Report Type (Check only one.):
   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).)
X 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).)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name
028-04968 MFS
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 3
Form 13F Information Table Entry Total: 28
Form 13F Information Table Value Total: 1,358,040
(thousands)
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
1 028-12046 SUN LIFE CAPITAL MANAGEMENT (U.S.) LLC
2 028-12047 Sun Life Assurance Co of Canada
3 028-15882 Crescent Capital Group LP

SEC FORM 13-F Information Table

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
ISHARES MSCI EAFE INDEX FUND * ISHARES TR MSCI EAFE ETF 464287465 4,067 59,012 SH   SOLE 1 59,012 0 0
ISHARES MSCI FRANCE ETF * ISHARES INC MSCI FRANCE ETF 464286707 2,185 61,400 SH   SOLE 1 61,400 0 0
ISHARES MSCI GERMANY ETF * ISHARES INC MSCI GERMANY ETF 464286806 449 17,125 SH   SOLE 1 17,125 0 0
ISHARES MSCI MEXICO CAPPED ETF * ISHARES INC MSCI MEXICO ETF 464286822 938 16,115 SH   SOLE 1 16,115 0 0
ISHARES MSCI UNITED KINGDOM INDEX FUND * ISHARES TR MSCI UK ETF NEW 46435G334 1,814 57,325 SH   SOLE 1 57,325 0 0
ISHARES MSCI UNITED KINGDOM INDEX FUND * ISHARES TR MSCI UK ETF NEW 46435G334 6,893 217,848 SH   SOLE 1 217,848 0 0
SPDR S&P 500 ETF TRUST * SPDR S&P 500 ETF TR TR UNIT 78462F103 256,935 601,045 SH   SOLE 1 601,045 0 0
SPDR S&P 500 ETF TRUST * SPDR S&P 500 ETF TR TR UNIT 78462F103 15,923 37,248 SH   SOLE 1 37,248 0 0
SPDR S&P 500 ETF TRUST * SPDR S&P 500 ETF TR TR UNIT 78462F103 508,577 1,189,710 SH   SOLE 1 1,189,710 0 0
ISHARES MSCI JAPAN UCITS ETF * ISHARES INC MSCI JPN ETF NEW 46434G822 6,040 100,179 SH   SOLE 1 100,179 0 0
AVALONBAY COMMUNITIES INC * AVALONBAY CMNTYS INC COM 053484101 25,834 150,427 SH   SOLE 1 150,427 0 0
PROLOGIS INC * PROLOGIS INC. COM 74340W103 41,334 368,359 SH   SOLE 1 368,359 0 0
INVESCO QQQ TRUST SERIES 1 * INVESCO QQQ TR UNIT SER 1 46090E103 64,883 181,100 SH   SOLE 1 181,100 0 0
CAMDEN PROPERTY TRUST * CAMDEN PPTY TR SH BEN INT 133131102 20,409 215,784 SH   SOLE 1 215,784 0 0
ISHARES ESG SCREENED S&P 500 ETF * ISHARES TR ESG SCRND S&P500 46436E569 26,690 823,040 SH   SOLE 1 823,040 0 0
ISHARES MSCI INDIA ETF * ISHARES TR MSCI INDIA ETF 46429B598 107,313 2,426,800 SH   SOLE 1 2,426,800 0 0
ISHARES MSCI TAIWAN ETF * ISHARES INC MSCI TAIWAN ETF 46434G772 48,014 1,077,750 SH   SOLE 1 1,077,750 0 0
CRESCENT CAPITAL BDC INC * CRESCENT CAP BDC INC COM 225655109 29,174 1,706,082 SH   SOLE 1 1,706,082 0 0
FIRST INDUSTRIAL REALTY TRUST INC * FIRST INDL RLTY TR INC COM 32054K103 12,033 252,856 SH   SOLE 1 252,856 0 0
ISHARES TRUST ISHARES 1-5 YEAR INVESTMENT GRADE CORPORATE BOND ETF * ISHARES TR ISHS 1-5YR INVS 464288646 75,193 1,509,000 SH   SOLE 1 1,509,000 0 0
PROSHARES ULTRASHORT REAL ESTATE * PROSHARES TR ULTSHT REAL EST 74347G556 1,500 72,834 SH   SOLE 1 72,834 0 0
REXFORD INDUSTRIAL REALTY INC * REXFORD INDL RLTY INC COM 76169C100 12,330 249,854 SH   SOLE 1 249,854 0 0
VANGUARD S&P 500 ETF * VANGUARD INDEX FDS S&P 500 ETF SHS 922908363 13,758 35,034 SH   SOLE 1 35,034 0 0
ISHARES CORE S&P 500 ETF * ISHARES TR CORE S&P500 ETF 464287200 12,707 29,590 SH   SOLE 1 29,590 0 0
ISHARES CORE S&P 500 ETF * ISHARES TR CORE S&P500 ETF 464287200 10,689 24,891 SH   SOLE 1 24,891 0 0
IQVIA HLDGS INC COM 46266C105 57 289 SH   SOLE 3 289 0 0
MISTER CAR WASH INC COM 60646V105 51,074 9,269,238 SH   SOLE 3 9,269,238 0 0
ISHARES TR IBOXX INV CP ETF 464287242 1,227 12,000 SH   SOLE 3 12,000 0 0