SECURITIES AND EXCHANGE COMMISSIONSEC FORM 17-C

CURRENT REPORT UNDER SECTION 17
OF THE SECURITIES REGULATION CODE
AND SRC RULE 17.2(c) THEREUNDER

1. Date of Report (Date of earliest event reported)

Mar 20, 2024

2. SEC Identification Number

N/A

3. BIR Tax Identification No.

N/A

4. Exact name of issuer as specified in its charter

Sun Life Financial Inc.

5. Province, country or other jurisdiction of incorporation

Canada

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

1 York Street, Toronto, Ontario, Canada M5J 0B6 Postal Code M5J

8. Issuer's telephone number, including area code

1-416-979-9966

9. Former name or former address, if changed since last report

N/A

10. Securities registered pursuant to Sections 8 and 12 of the SRC or Sections 4 and 8 of the RSA

Title of Each Class	Number of Shares of Common Stock Outstanding and Amount of Debt Outstanding
Common Shares	583,737,153

11. Indicate the item numbers reported herein

1

The Exchange does not warrant and holds no responsibility for the veracity of the facts and representations contained in all corporate disclosures, including financial reports. All data contained herein are prepared and submitted by the disclosing party to the Exchange, and are disseminated solely for purposes of information. Any questions on the data contained herein should be addressed directly to the Corporate Information Officer of the disclosing party.

Sun Life Financial Inc.SLF

PSE Disclosure Form 12-1 - Change in Stock Transfer Agent References: Section 12 of the Revised Disclosure Rules

Subject of the Disclosure
Change in Stock Transfer Agent from Rizal Commercial Banking Corporation ("RCBC") to RCBC Trust Corporation.
Background/Description of the Disclosure
Due to RCBC's spin-off of its Trust and Investments Group into a stand-alone trust corporation, RCBC Trust Corporation will act as the new Transfer Agent for Sun Life Financial Inc. in the Philippines.

Details of Changes in Stock Transfer Agent

Date of Approval by Board of Directors	N/A
Previous Stock Transfer Agent	Rizal Commercial Banking Corporation
Effective Date of Termination	Mar 27, 2024
New Stock Transfer Agent	RCBC Trust Corporation
Date of Engagement	Mar 27, 2024
Effective Date of Engagement	Mar 27, 2024

Reason(s) for Replacement
Due to RCBC's spin-off of its Trust and Investments Group into a stand-alone trust corporation, RCBC Trust Corporation will act as the new Transfer Agent for Sun Life Financial Inc. in the Philippines.
Other Relevant Information
This particular amendment is being made to report the effective date for the following: 1. Effective date of Termination of Rizal Commercial Banking Corporation; 2. Date of Engagement with RCBC Trust Corporation; and 3. Effective Date of Engagement with RCBC Trust Corporation. Also, the Number of Outstanding Shares has been updated to the balance as of February 29, 2024.