U.S. Securities and Exchange Commission 

Washington, D.C. 20549 

**Form 40-F**

**[    ] REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE**

**SECURITIES EXCHANGE ACT OF 1934**

**OR**

**[X] ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE**

**SECURITIES EXCHANGE ACT OF 1934**

 

**Sun Life Financial Inc.**

(Exact name of Registrant as specified in its charter) 

**Canada**

(Province or other jurisdiction of incorporation or organization) 

**52411**

(Primary Standard Industrial Classification Code Number (ifapplicable)) 

**Not Applicable**

(I.R.S. Employer Identification Number (if applicable)) 

**150 King Street West, 6th Floor, Toronto, Ontario, Canada M5H 1J9 (416) 979-4800**

(Address and telephone number of Registrant’s principal executive offices) 

**Sun Life Assurance Company of Canada – U.S. Operations Holdings, Inc.**

**One Sun Life Executive Park**

**Wellesley Hills, Massachusetts 02481**

**(781) 237-6030**

(Name, address (including zip code) and telephone number (including area code) of 

agent for service in the United States) 

Securities registered or to be registered pursuant to Section 12(b) of the Act: 

 

Securities registered or to be registered pursuant to Section 12(g) of the Act. 

**Not Applicable**

(Title of Class) 

Securities for which there is a reporting obligation pursuant toSection 15(d) of the Act. 

**Not Applicable**

(Title of Class) 

For annual reports, indicate by check mark the information filed with this Form: 

[ **X** ] Annual information form                                 [ **X** ] Audited annual financial statements

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the periodcovered by the annual report. 

 

**Common Shares**
    ** ****609,376,407****  **  
**Class A Preferred Shares Series 1**
    ** ****16,000,000****  **  
**Class A Preferred Shares Series 2**
    ** ****13,000,000****  **  
**Class A Preferred Shares Series 3**
    ** ****10,000,000****  **  
**Class A Preferred Shares Series 4**
    ** ****12,000,000****  **  
**Class A Preferred Shares Series 5**
    ** ****10,000,000****  **  
**Class A Preferred Shares Series 8R**
    ** ****5,102,686****  **  
**Class A Preferred Shares Series 9QR**
    ** ****6,007,314****  **  
**Class A Preferred Shares Series 10R**
    ** ****8,000,000****  **  
**Class A Preferred Shares Series 12R**
    ** ****12,000,000****  **  
Indicate by check mark whether the Registrant by filing the information contained in this Form is also thereby furnishingthe information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934 (the “Exchange Act”). If “Yes” is marked, indicate the filing number assigned to theRegistrant in connection with such Rule. 

Yes ̈                            No þ

Indicate by check mark whether the Registrant (1) has filed all reports required to be filedby Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yesþ                            No  ̈

**INCORPORATION BY REFERENCE**

The following information is incorporated by reference in this annual report on Form 40-F: 

**Disclosure Controls and Procedures**

The information under the heading “Accounting andControl Matters - Disclosure Controls and Procedures” in the Company’s Management’s Discussion and Analysis for the year ended December 31, 2015 (the “**2015 Annual MD&A**”) is incorporated by reference herein.

A copy of the Company’s 2015 Annual MD&A is attached hereto as Exhibit 1. 

**Management’s Annual Report on Internal Control Over Financial Reporting**

The information under the heading “Accounting and Control Matters - Disclosure Controls and Procedures - Management’s Report on Internal Control over Financial Reporting” in theCompany’s 2015 Annual MD&A and the information in the management report titled “Financial Reporting Responsibilities”, with respect to the Company’s annual consolidated financial statements for the year endedDecember 31, 2015 (the “**2015 Annual Financial Statements”**) is incorporated by reference herein. 

Copies of themanagement report titled “Financial Reporting Responsibilities” and the Company’s 2015 Annual Financial Statements are attached hereto as Exhibit 2. 

**Attestation Report of the Registered Public Accounting Firm**

The “Report of Independent Registered Public Accounting Firm” with respect to the Company’s 2015 Annual Financial Statements and the“Report of Independent Registered Public Accounting Firm” with respect to the audit of the internal control over financial reporting of the Company, which accompany the Company’s 2015 Annual Financial Statements are incorporated byreference herein. 

**Changes in Internal Control Over Financial Reporting**

The information under the heading “Accounting and Control Matters - Disclosure Controls and Procedures - Changes in Internal Control over Financial Reporting” in the Company’s 2015 AnnualMD&A is incorporated by reference herein. 

**Identification of Audit Committee**

The information under the heading “Directors and Executive Officers - Audit & Conduct Review Committee” in the Company’s annualinformation form dated February 10, 2015 (the “**2015 AIF**”) is incorporated by reference herein. 

A copy of theCompany’s 2015 AIF is attached hereto as Exhibit 3. 

**Audit Committee Financial Expert**

The information under the heading “Directors and Executive Officers - Audit & Conduct Review Committee” in the Company’s 2015 AIFis incorporated by reference herein. 

**Code of Ethics**

The information under the heading “Code of Business Conduct” in the Company’s 2015 AIF is incorporated by reference herein. 

A copy of the current Sun Life Financial Code of Business Conduct was most recently filed with the United States Securities and Exchange Commission as an Exhibit to the Company’s Form 40-F datedFebruary 12, 2015 . No changes have been made to that Code of Business Conduct since that date. 

**Principal Accountant Fees andServices**

The information under the headings “Directors and Executive Officers - Principal Accountant Fees and Services” in theCompany’s 2015 AIF is incorporated by reference herein. 

None of the services provided by the Company’s external auditor describedunder “Directors and Executive Officers - Principal Accountant Fees and Services” in the Company’s 2015 AIF were approved pursuant to the waiver of pre-approval provisions in paragraph (c)(7)(i)(C) of SEC Rule 2-01 of Regulation S-X.

**Off-Balance Sheet Arrangements**

The information under the heading “Capital and Liquidity Management - Off-Balance Sheet Arrangements” in the Company’s 2015 Annual MD&A is incorporated by reference herein. 

**Tabular Disclosure of Contractual Obligations**

The table entitled “Financial Liabilities and Contractual Obligations” included under the heading “Risk Management - Risk Categories - Liquidity Risk” in the Company’s 2015 AnnualMD&A is incorporated by reference herein. 

**Comparison with New York Stock Exchange Governance Rules**

The Company’s governance processes and practices are consistent with the New York Stock Exchange corporate governance rules for U.S. publicly-listedcompanies. 

**UNDERTAKING**

Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commissionstaff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on Form 40-F arises; or transactions in said securities. 

**SIGNATURES**

Pursuant tothe requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf by the undersigned, thereto duly authorized. 

 
**Sun Life Financial Inc.**By: 
/S/ “Melissa J. Kennedy”
 
**Melissa J. Kennedy**

**Executive Vice-President &**

**  Chief Legal Officer & Public Affairs**
**Dated: February 11, 2016**
**EXHIBITS:**

 
1.Annual Management’s Discussion and Analysis for the year ended December 31, 2015 
 
2.Consolidated Financial Statement for the year ended December 31, 2015 
 
3.Annual Information Form dated February 10, 2016 
 
4.Consent of Independent Registered Public Accounting Firm 
 
5.Consent of Appointed Actuary 
 
6.Certifications required by Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of United States Code, pursuant to Section 906 of the*Sarbanes-Oxley Act* of 2002 
 
7.Certifications required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the Sarbanes-Oxley Act of 2002