N-MFP2 0000063068 XXXXXXXX 2019-02-28 0000063068 MQMNIX2D6ZVLO9HEKW73 S000002435 1 N N 002-54607 Massachusetts Financial Services Company 801-17352 Deloitte & Touche LLP Boston MA Massachusetts Financial Services Company MFS Service Center, Inc 0000769188 084-01316 N N N Exempt Government N 24 24 37701911.94 53771322.80 65683962.73 53486080.53 253472008.70 288287289.33 280060804.34 301700927.63 0.00 0.1227 0.1732 0.2194 0.1719 0.8247 0.9288 0.9356 0.9695 0.0000 158.96 297795430.95 297801611.74 988135.37 1425307.70 297364598.37 297364549.4200 1.0000 0.0240 1.0000 1.0000 1.0000 1.0000 0.0000 C000006517 1000.00 297364598.37 297364549.4200 1.0000 1.0000 1.0000 1.0000 0.0000 1348095.96 7017363.12 2400769.26 8580286.63 2763675.96 4947269.33 2744038.88 3062025.46 0.00 0.00 10993266.33 22163866.29 0.0180 Y During the period, MFS waived: $2,289 management fees. Federal Farm Credit Bank Federal Farm Credit Bank 313312CQ1 US313312CQ16 U.S. Government Agency Debt Y 2019-03-04 2019-03-04 2019-03-04 N N N 0.0241 3249356.50 3249356.50 0.0109 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312CU2 US313312CU28 U.S. Government Agency Debt Y 2019-03-08 2019-03-08 2019-03-08 N N N 0.0241 11394721.80 11394721.80 0.0383 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312CX6 US313312CX66 U.S. Government Agency Debt Y 2019-03-11 2019-03-11 2019-03-11 N N N 0.0241 8194579.80 8194579.80 0.0276 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312DE7 US313312DE76 U.S. Government Agency Debt Y 2019-03-18 2019-03-18 2019-03-18 N N N 0.0242 13984264.00 13984264.00 0.0470 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312DF4 US313312DF42 U.S. Government Agency Debt Y 2019-03-19 2019-03-19 2019-03-19 N N N 0.0242 299643.00 299643.00 0.0010 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312DG2 US313312DG25 U.S. Government Agency Debt Y 2019-03-20 2019-03-20 2019-03-20 N N N 0.0242 6991208.00 6991208.00 0.0235 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312EC0 US313312EC02 U.S. Government Agency Debt Y 2019-04-09 2019-04-09 2019-04-09 N N N 0.0245 16656396.30 16656396.30 0.0560 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384CM9 2549001DPIFGXC1TOL40 US313384CM96 U.S. Government Agency Debt Y 2019-03-01 2019-03-01 2019-03-01 N N N 0.0001 6200000.00 6200000.00 0.0208 N Y Y N Federal Home Loan Bank Federal Home Loan Bank 313384CQ0 2549001DPIFGXC1TOL40 US313384CQ01 U.S. Government Agency Debt Y 2019-03-04 2019-03-04 2019-03-04 N N N 0.0241 8093397.19 8093397.19 0.0272 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384CZ0 2549001DPIFGXC1TOL40 US313384CZ00 U.S. Government Agency Debt Y 2019-03-13 2019-03-13 2019-03-13 N N N 0.0241 11990484.00 11990484.00 0.0403 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384DA4 2549001DPIFGXC1TOL40 US313384DA40 U.S. Government Agency Debt Y 2019-03-14 2019-03-14 2019-03-14 N N N 0.0242 3347122.35 3347122.35 0.0113 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384DH9 2549001DPIFGXC1TOL40 US313384DH92 U.S. Government Agency Debt Y 2019-03-21 2019-03-21 2019-03-21 N N N 0.0242 11984136.00 11984136.00 0.0403 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384EE5 2549001DPIFGXC1TOL40 US313384EE52 U.S. Government Agency Debt Y 2019-04-11 2019-04-11 2019-04-11 N N N 0.0245 11967060.00 11967060.00 0.0402 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384EF2 2549001DPIFGXC1TOL40 US313384EF28 U.S. Government Agency Debt Y 2019-04-12 2019-04-12 2019-04-12 N N N 0.0245 11966256.00 11966256.00 0.0402 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396CR2 S6XOOCT0IEG5ABCC6L87 US313396CR22 U.S. Government Agency Debt Y 2019-03-05 2019-03-05 2019-03-05 N N N 0.0241 15245974.00 15245974.00 0.0513 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396DW0 S6XOOCT0IEG5ABCC6L87 US313396DW08 U.S. Government Agency Debt Y 2019-04-03 2019-04-03 2019-04-03 N N N 0.0245 12671945.70 12671945.70 0.0426 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396DX8 S6XOOCT0IEG5ABCC6L87 US313396DX80 U.S. Government Agency Debt Y 2019-04-04 2019-04-04 2019-04-04 N N N 0.0245 12671094.80 12671094.80 0.0426 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396EL3 S6XOOCT0IEG5ABCC6L87 US313396EL34 U.S. Government Agency Debt Y 2019-04-17 2019-04-17 2019-04-17 N N N 0.0245 9750228.97 9750228.97 0.0328 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396ET6 S6XOOCT0IEG5ABCC6L87 US313396ET69 U.S. Government Agency Debt Y 2019-04-24 2019-04-24 2019-04-24 N N N 0.0245 6376864.00 6376864.00 0.0214 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396FN8 S6XOOCT0IEG5ABCC6L87 US313396FN80 U.S. Government Agency Debt Y 2019-05-13 2019-05-13 2019-05-13 N N N 0.0247 3084788.30 3084788.30 0.0104 N N N N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CS2 B1V7KEBTPIMZEU4LTD58 US313588CS29 U.S. Government Agency Debt Y 2019-03-06 2019-03-06 2019-03-06 N N N 0.0241 9496855.50 9496855.50 0.0319 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CY9 B1V7KEBTPIMZEU4LTD58 US313588CY96 U.S. Government Agency Debt Y 2019-03-12 2019-03-12 2019-03-12 N N N 0.0241 9493093.50 9493093.50 0.0319 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CZ6 B1V7KEBTPIMZEU4LTD58 US313588CZ61 U.S. Government Agency Debt Y 2019-03-13 2019-03-13 2019-03-13 N N N 0.0241 1498810.50 1498810.50 0.0050 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588DN2 B1V7KEBTPIMZEU4LTD58 US313588DN23 U.S. Government Agency Debt Y 2019-03-26 2019-03-26 2019-03-26 N N N 0.0242 11980164.00 11980164.00 0.0403 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588DU6 B1V7KEBTPIMZEU4LTD58 US313588DU65 U.S. Government Agency Debt Y 2019-04-01 2019-04-01 2019-04-01 N N N 0.0245 18867767.98 18867767.98 0.0634 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588EB7 B1V7KEBTPIMZEU4LTD58 US313588EB75 U.S. Government Agency Debt Y 2019-04-08 2019-04-08 2019-04-08 N N N 0.0245 6982192.00 6982192.00 0.0235 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588EJ0 B1V7KEBTPIMZEU4LTD58 US313588EJ02 U.S. Government Agency Debt Y 2019-04-15 2019-04-15 2019-04-15 N N N 0.0245 1495480.50 1495480.50 0.0050 N N Y N Goldman Sachs & Co. LLC Goldman Sachs & Co. LLC 2.550000% 318991007 FOR8UP27PHTHYVLBNG30 0000769993 318991007_2.55_0301 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N Federal Home Loan Bank 2549001DPIFGXC1TOL40 2019-03-21 2.357000 265000.00 264626.62 Agency Debentures and Agency Strips U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-05-15 2.434707 5.12 5.09 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2048-02-15 3.112769 100.00 40.57 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2026-02-28 2.500000 14022400.00 13939149.01 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-03-28 2.340000 700.00 698.72 U.S. Treasuries (including strips) Y 2019-03-01 2019-03-01 2019-03-01 N N N 0.0255 13926000.00 13926000.00 0.0468 N Y Y N JPMorgan Chase JPMorgan Chase 2.600000% 446199002 8I5DZWZKVSZI1NUHU748 0001168163 446199002_2.60_0301 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2020-07-31 2.625000 5086500.00 5100306.73 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2020-08-31 1.375000 100.00 98.25 U.S. Treasuries (including strips) Y 2019-03-01 2019-03-01 2019-03-01 N N N 0.0260 5000000.00 5000000.00 0.0168 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796QZ5 254900HROIFWPRGM1V77 US912796QZ54 U.S. Treasury Debt Y 2019-03-07 2019-03-07 2019-03-07 N N N 0.0236 99961.21 99961.21 0.0003 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796RQ4 254900HROIFWPRGM1V77 US912796RQ47 U.S. Treasury Debt Y 2019-05-16 2019-05-16 2019-05-16 N N N 0.0244 7362662.86 7362662.86 0.0248 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796UR8 254900HROIFWPRGM1V77 US912796UR82 U.S. Treasury Debt Y 2019-03-05 2019-03-05 2019-03-05 N N N 0.0238 4298879.59 4298879.59 0.0145 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796UV9 254900HROIFWPRGM1V77 US912796UV94 U.S. Treasury Debt Y 2019-04-02 2019-04-02 2019-04-02 N N N 0.0245 12074042.60 12074042.60 0.0406 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796XJ3 254900HROIFWPRGM1V77 US912796XJ30 U.S. Treasury Debt Y 2019-03-01 2019-03-01 2019-03-01 N N N 0.0001 9100000.00 9100000.00 0.0306 N Y Y N MFS SERIES TRUST IV 2019-03-07 /s/Kasey L. Phillips Kasey L. Phillips Assistant Treasurer