X0404 N-CEN LIVE 0001330967 XXXXXXXX 811-21780 false false false N-1A true MFS SERIES TRUST XII 811-21780 0001330967 549300VVIIPRJRW6FR46 111 HUNTINGTON AVENUE BOSTON 02199 US-MA US 617-954-5000 Ropes & Gray LLP 800 Boylston Street Boston 02199-3600 617-951-7000 Counsel Record Mycomplianceoffice Limited (New York, NY, US, Branch) 535 5th Avenue 4th Floor New York 10017 866-951-2280 Personal Trading System Micro Focus, LLC 4555 Great America Parkway Suite 400 Santa Clara 95054-1243 650-258-6827 Storage Vendor SS&C Technologies, Inc. 333 West 11th Street Kansas City 64105 816-435-1000 Technology Vendor MFS Service Center, Inc. 111 Huntington Avenue Boston 02199 617-954-5000 Transfer Agency Record Icertis, Inc. 14711 NE 29th Place Suite 100 Bellevue 98007 425-869-7649 Contract Management System Iron Mountain, Inc. 1 Federal Street Boston 02110 800-899-4766 Storage Vendor Institutional Shareholder Services Inc. 702 King Farm Boulevard Suite 400 Rockville 20850-4045 301-556-0500 Proxy Voting Administrator State Street Bank and Trust Company 1 Congress Street Suite 1 Boston 02114 617-786-3000 Custody and Accounting Records Massachusetts Financial Services Company 111 Huntington Avenue Boston 02199 617-954-5000 Investment Adviser Record The Depository Trust Company 55 Water Street New York 10041 212-855-1000 Central Clearinghouse Charles River Development 700 District Avenue Burlington 01803 781-238-0099 Investment related records MFS Fund Distributors, Inc. 111 Huntington Avenue Boston 02199 617-954-5000 Principal Underwriter Record N N N-1A 11 Y Laurie J. Thomsen N/A N Peter D. Jones N/A N John P. Kavanaugh N/A N Michael W. Roberge N/A Y Maryanne L. Roepke N/A N Clarence Otis, Jr. N/A N Maureen R. Goldfarb N/A N James W. Kilman, Jr. N/A N Steven E. Buller N/A N John A. Caroselli N/A N Rosa E. Licea-Mailloux N/A 111 Huntington Avenue Boston 02199 XXXXXX N N N N N N N MFS Fund Distributors, Inc. 8-45321 000031052 N/A Y N Ernst & Young LLP 42 N/A N N N N N N MFS Lifetime 2060 Fund S000055287 549300B1U3QH45BRJE12 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 18f-4 (17 CFR 270.18f-4) Rule 22d-1 (17 CFR 270.22d-1) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 32a-4 (17 CFR 270.32a-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 157534440.05000000 Uncommitted 100000000.00000000 N Uncommitted 200000000.00000000 N Committed 1450000000.00000000 N N N N MFS Lifetime 2050 Fund S000030062 549300L30DVISSHBKT35 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4 (17 CFR 270.18f-4) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 32a-4 (17 CFR 270.32a-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 476200533.45000000 Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Lifetime 2055 Fund S000038776 5493000S4RZPWVSHEE95 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 32a-4 (17 CFR 270.32a-4) Rule 22d-1 (17 CFR 270.22d-1) Rule 12d1-1 (17 CFR 270.12d1-1) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 18f-4 (17 CFR 270.18f-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N ICE Data Services, Inc. 13-3668779 Tax ID N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 307078311.23769230 Uncommitted 200000000.00000000 N Uncommitted 100000000.00000000 N Committed 1450000000.00000000 N N N N MFS Lifetime 2040 Fund S000002505 549300M6O09VYUYTQK38 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4 (17 CFR 270.18f-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 32a-4 (17 CFR 270.32a-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N ICE Data Services, Inc. 13-3668779 Tax ID N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 688110756.25538461 Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Lifetime 2045 Fund S000038775 54930078W14TCCY5W445 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 32a-4 (17 CFR 270.32a-4) Rule 18f-4 (17 CFR 270.18f-4) Rule 12d1-1 (17 CFR 270.12d1-1) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N ICE Data Services, Inc. 13-3668779 Tax ID N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 446954943.35615384 Uncommitted 200000000.00000000 N Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N N N N MFS Lifetime 2025 Fund S000038773 549300FD1OUZIFXJIP34 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 32a-4 (17 CFR 270.32a-4) Rule 18f-4 (17 CFR 270.18f-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 22d-1 (17 CFR 270.22d-1) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 367443656.43000000 Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Lifetime 2030 Fund S000002504 549300VPT7TXX8JRMU69 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 12d1-1 (17 CFR 270.12d1-1) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4 (17 CFR 270.18f-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Rule 32a-4 (17 CFR 270.32a-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N ICE Data Services, Inc. 13-3668779 Tax ID N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 745692192.70384615 Uncommitted 100000000.00000000 N Committed 1450000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Lifetime 2065 Fund S000072833 549300X2Q4S3PZNFAE14 N 8 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Rule 32a-4 (17 CFR 270.32a-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Rule 18f-4 (17 CFR 270.18f-4) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 22d-1 (17 CFR 270.22d-1) Rule 12d1-1 (17 CFR 270.12d1-1) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 12498480.36461538 Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Core Bond Fund S000076470 5493007VGRIDZH3OJY65 N 8 0 0 N/A N N N N N/A N/A N/A Rule 32a-4 (17 CFR 270.32a-4) Rule 18f-4(f)(17 CFR 270.18f-4(f)) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4 (17 CFR 270.18f-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N S&P Global Y6X4K52KMJMZE7I7MY94 N PricingDirect Inc. 549300WIC0TOJ7N7GD54 N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Service, Inc. 13-3668779 Tax ID N N JPMorgan Chase Bank, National Association 7H6GLXDRUGQFU57RNE97 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N BofA Securities, Inc. 8-69787 000283942 549300HN4UKV1E2R3U73 3.68000000 Merrill Lynch, Pierce, Fenner & Smith Inc. 8-07221 000007691 8NAV47T0Y26Q87Y0QP81 1027.61000000 1031.29000000 Goldman Sachs & Co. LLC 8-00129 000000361 FOR8UP27PHTHYVLBNG30 3200168.06000000 J.P. Morgan Securities LLC 8-35008 000000079 ZBUT11V806EZRVTWT807 9067850.22000000 BNP Paribas Securities Corp. 8-32682 000015794 RCNB6OTYUAMMP879YW96 5650613.37000000 Wells Fargo Securities, LLC 8-65876 000126292 VYVVCKR63DVZZN70PB21 3341097.41000000 Bank of Montreal N/A N/A NQQ6HPCNCCU6TUTQYE16 CA 2557617.53000000 Mizuho Securities USA LLC 8-37710 000019647 7TK5RJIZDFROZCA6XF66 4904091.98000000 Citigroup Global Markets Inc. 8-08177 000007059 MBNUM2BPBDO7JBLYG310 8498436.90000000 BofA Securities, Inc. 8-69787 000283942 549300HN4UKV1E2R3U73 5676320.94000000 INTL FCStone Financial Inc. 8-51269 000045993 549300LNKU6K5TJCRG93 2177314.80000000 Morgan Stanley & Co. LLC 8-15869 000008209 9R7GPTSO7KV3UQJZQ078 2110290.67000000 57907634.54000000 N 28065231.33000000 Uncommitted 100000000.00000000 N Committed 1450000000.00000000 N Uncommitted 200000000.00000000 N N N N MFS Lifetime Income Fund S000002501 HVSHYLXT64G65WN2P306 N 9 0 0 Fund of Funds N N N N N/A N/A N/A Rule 12d1-1 (17 CFR 270.12d1-1) Rule 32a-4 (17 CFR 270.32a-4) Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Rule 22d-1 (17 CFR 270.22d-1) Rule 18f-4 (17 CFR 270.18f-4) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 631690499.15923076 Committed 1450000000.00000000 N Uncommitted 200000000.00000000 N Uncommitted 100000000.00000000 N N N N MFS Lifetime 2035 Fund S000038774 549300CC3UY7JZFET524 N 9 0 0 Fund of Funds Target Date Fund N N N N N/A N/A N/A Section 12(d)(1)(G) of the Act (15 USC 80a-12(d)(1)(G)) Rule 22d-1 (17 CFR 270.22d-1) Rule 12d1-1 (17 CFR 270.12d1-1) Rule 32a-4 (17 CFR 270.32a-4) Rule 18f-4 (17 CFR 270.18f-4) Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4)) Y Y N N Massachusetts Financial Services Company 801-17352 000110045 1G3OSH3GLGJ7X1JC5I61 N MFS Service Center, Inc. 084-01316 N/A Y N N London Stock Exchange Group PLC 213800QAUUUP6I445N30 GB N ICE Data Services, Inc. 13-3668779 Tax ID N N State Street Bank and Trust Company 571474TGEMMWANRLN572 N N Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1)) N MFS Service Center, Inc. 084-01316 SEC File Number Y N N Massachusetts Financial Services Company 1G3OSH3GLGJ7X1JC5I61 Y N N 0.00000000 0.00000000 N 528989845.56153846 Uncommitted 200000000.00000000 N Committed 1450000000.00000000 N Uncommitted 100000000.00000000 N N N N true