SUPPLEMENT DATED AUGUST 17, 2012

TO

PROSPECTUSES DATED MAY 1, 2012

FOR SUN LIFE FINANCIAL MASTERS CHOICE II AND SUN LIFE FINANCIAL MASTERS FLEX II

PROSPECTUSES DATED APRIL 29, 2011

FOR SUN LIFE FINANCIAL MASTERS EXTRA II AND SUN LIFE FINANCIAL MASTERS I SHARE

PROSPECTUS DATED MAY 1, 2009

FOR FUTURITY III

PROSPECTUS DATED MAY 1, 2008

FOR FUTURITY II

PROSPECTUSES DATED APRIL 11, 2006, AS SUPPLEMENTED DECEMBER 29, 2006,

AND PROSPECTUSES DATED MAY 1, 2006

FOR SUN LIFE FINANCIAL MASTERS IV AND SUN LIFE FINANCIAL MASTERS VII

PROSPECTUSES DATED MAY 1, 2006

FOR FUTURITY SELECT FOUR PLUS, FUTURITY SELECT INCENTIVE,

FUTURITY SELECT FREEDOM, FUTURITY SELECT SEVEN, FUTURITY FOCUS,

FUTURITY ACCOLADE, FUTURITY FOCUS II, FUTURITY, AND FUTURITY SELECT FOUR

ISSUED BY SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)

SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F

On August 9, 2012, shareholders approved the reorganization of the MFS Growth Portfolio (“Growth Portfolio”) into the MFS Growth Series (“Growth Series”).  After the close of business on August 17, 2012, all of the assets of the Growth Portfolio will be transferred to the Growth Series and shareholders of the Growth Portfolio will receive shares of the Growth Series in exchange for their Growth Portfolio shares.  The Growth Portfolio is no longer an available investment option and all references to that Portfolio are deleted from the prospectus.

Please retain this supplement with your prospectus for future reference.