N-MFP2 0000063068 XXXXXXXX 2019-01-31 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 28 28 83901736.03 55123599.29 64418919.88 42477039.40 328223997.75 322984217.07 317234610.99 272185221.14 0.00 0.2554 0.1707 0.2030 0.1355 0.9991 1.0000 0.9999 0.8680 0.0000 434.57 309000099.26 309010189.70 99015.58 574441.52 308535198.33 308535149.3680 1.0000 0.0239 1.0000 1.0000 1.0000 1.0000 0.0000 C000006517 1000.00 308535198.33 308535149.3680 1.0000 1.0000 1.0000 1.0000 0.0000 4761746.44 3782160.78 3213058.42 9541389.89 2495351.51 7696765.90 1087436.42 4976145.54 0.00 0.00 10265910.05 29001020.95 0.0180 Y During the period, MFS waived: $2,697 management fees. Federal Farm Credit Bank Federal Farm Credit Bank 313312BN9 US313312BN93 U.S. Government Agency Debt Y 2019-02-06 2019-02-06 2019-02-06 N N N 0.0242 5698107.60 5698107.60 0.0185 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312BU3 US313312BU37 U.S. Government Agency Debt Y 2019-02-12 2019-02-12 2019-02-12 N N N 0.0242 13190364.00 13190364.00 0.0428 N N Y N 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 0.0244 3243282.25 3243282.25 0.0105 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 0.0244 11373403.80 11373403.80 0.0369 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 0.0244 8179229.40 8179229.40 0.0265 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 0.0244 13958000.00 13958000.00 0.0452 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 0.0244 6978069.00 6978069.00 0.0226 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384BQ1 2549001DPIFGXC1TOL40 US313384BQ10 U.S. Government Agency Debt Y 2019-02-08 2019-02-08 2019-02-08 N N N 0.0242 13193862.00 13193862.00 0.0428 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384BV0 2549001DPIFGXC1TOL40 US313384BV05 U.S. Government Agency Debt Y 2019-02-13 2019-02-13 2019-02-13 N N N 0.0243 12989639.00 12989639.00 0.0421 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384BX6 2549001DPIFGXC1TOL40 US313384BX60 U.S. Government Agency Debt Y 2019-02-15 2019-02-15 2019-02-15 N N N 0.0243 12788108.80 12788108.80 0.0414 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384CK3 2549001DPIFGXC1TOL40 US313384CK31 U.S. Government Agency Debt Y 2019-02-27 2019-02-27 2019-02-27 N N N 0.0243 12777907.20 12777907.20 0.0414 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384CL1 2549001DPIFGXC1TOL40 US313384CL14 U.S. Government Agency Debt Y 2019-02-28 2019-02-28 2019-02-28 N N N 0.0243 11978484.00 11978484.00 0.0388 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396CC5 S6XOOCT0IEG5ABCC6L87 US313396CC52 U.S. Government Agency Debt Y 2019-02-20 2019-02-20 2019-02-20 N N N 0.0243 5892560.10 5892560.10 0.0191 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 0.0244 15217471.75 15217471.75 0.0493 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 0.0244 12648349.10 12648349.10 0.0410 N N N 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 0.0244 12647510.90 12647510.90 0.0410 N N N 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 9732095.00 9732095.00 0.0315 N N N 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 6365011.20 6365011.20 0.0206 N N N N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588BL8 B1V7KEBTPIMZEU4LTD58 US313588BL84 U.S. Government Agency Debt Y 2019-02-04 2019-02-04 2019-02-04 N N N 0.0242 199960.20 199960.20 0.0006 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588BN4 B1V7KEBTPIMZEU4LTD58 US313588BN41 U.S. Government Agency Debt Y 2019-02-06 2019-02-06 2019-02-06 N N N 0.0242 499834.00 499834.00 0.0016 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588BT1 B1V7KEBTPIMZEU4LTD58 US313588BT11 U.S. Government Agency Debt Y 2019-02-11 2019-02-11 2019-02-11 N N N 0.0242 3897410.40 3897410.40 0.0126 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CB9 B1V7KEBTPIMZEU4LTD58 US313588CB93 U.S. Government Agency Debt Y 2019-02-19 2019-02-19 2019-02-19 N N N 0.0243 11168637.51 11168637.51 0.0362 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CH6 B1V7KEBTPIMZEU4LTD58 US313588CH63 U.S. Government Agency Debt Y 2019-02-25 2019-02-25 2019-02-25 N N N 0.0243 13178972.40 13178972.40 0.0427 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588CJ2 B1V7KEBTPIMZEU4LTD58 US313588CJ20 U.S. Government Agency Debt Y 2019-02-26 2019-02-26 2019-02-26 N N N 0.0243 12878586.00 12878586.00 0.0417 N N Y 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 0.0244 9479100.00 9479100.00 0.0307 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 0.0244 9475300.00 9475300.00 0.0307 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 0.0244 1495999.50 1495999.50 0.0048 N N Y N Goldman Sachs & Co. LLC Goldman Sachs & Co. LLC 2.530000% FOR8UP27PHTHYVLBNG30 0000769993 318991007_2.53_0201 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2020-10-31 2.349500 3552300.00 3570006.79 U.S. Treasuries (including strips) Y 2019-02-01 2019-02-01 2019-02-01 N N N 0.0253 3500000.00 3500000.00 0.0113 N Y Y N JPMorgan Chase JPMorgan Chase 2.550000% 8I5DZWZKVSZI1NUHU748 0001168163 446199002_2.55_0201 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-05-23 2.365000 200.00 198.53 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-07-18 2.392500 1000.00 988.80 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-12-05 2.442500 1000.00 978.98 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2044-11-15 3.000000 3200.00 3227.93 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2048-05-15 3.125000 1039000.00 1069663.07 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2019-09-30 1.375000 1000.00 996.95 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2025-02-28 2.750000 17680400.00 18127341.56 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2021-12-15 2.625000 9600.00 9679.14 U.S. Treasuries (including strips) Y 2019-02-01 2019-02-01 2019-02-01 N N N 0.0255 18835000.00 18835000.00 0.0610 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796QW2 254900HROIFWPRGM1V77 US912796QW24 U.S. Treasury Debt Y 2019-02-07 2019-02-07 2019-02-07 N N N 0.0230 4998108.35 4998108.35 0.0162 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796QY8 254900HROIFWPRGM1V77 US912796QY89 U.S. Treasury Debt Y 2019-02-21 2019-02-21 2019-02-21 N N N 0.0238 6891020.41 6891020.41 0.0223 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 0.0239 99778.06 99778.06 0.0003 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796UM9 254900HROIFWPRGM1V77 US912796UM95 U.S. Treasury Debt Y 2019-02-05 2019-02-05 2019-02-05 N N N 0.0228 18960253.44 18960253.44 0.0615 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796UN7 254900HROIFWPRGM1V77 US912796UN78 U.S. Treasury Debt Y 2019-02-12 2019-02-12 2019-02-12 N N N 0.0235 299788.02 299788.02 0.0010 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 0.0242 4290895.87 4290895.87 0.0139 N Y Y N MFS SERIES TRUST IV 2019-02-06 /s/Kasey L. Phillips Kasey L. Phillips Assistant Treasurer