UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16
under the Securities Exchange Act of 1934
| For the month of September 2026 | Commission File Number: 001-15014 |
SUN LIFE FINANCIAL INC.
(Translation of registrant's name into English)
1 York Street, 31st Floor, Toronto, Ontario, M5J 0B6
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
| Form 20-F ☐ | Form 40-F ☒ |
| Exhibits | Description | |
| 99.1 | News Release dated September 21, 2026 | |
SIGNATURE
Pursuant to the requirement of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| Sun
Life Financial Inc. (Registrant) | ||||
| Date: September 21, 2026 | By: | /s/ “Kevin Armitage” | ||
| Kevin Armitage | ||||
AVP & Managing Counsel, Corporate Legal | ||||