N-MFP2 0000063068 XXXXXXXX 2019-05-31 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 24 24 33336244.52 55703402.13 59008998.80 48874822.07 82374916.88 261432853.78 261312143.03 271441653.99 269006690.85 268764609.39 0.1149 0.1916 0.2014 0.1681 0.2829 0.9009 0.8988 0.9262 0.9252 0.9231 420.54 290417364.61 290375944.46 767839.67 735685.50 290408519.17 290408470.2720 1.0000 0.0242 1.0000 1.0000 1.0000 1.0000 1.0001 C000006517 1000.00 290408519.17 290408470.2720 1.0000 1.0000 1.0000 1.0000 1.0001 1285705.10 4535570.42 2664326.40 2352616.50 5459316.62 3328872.26 2192272.34 4426907.78 2013874.88 1742807.49 13422315.14 15086124.67 0.0182 Y During the period, MFS waived: $2,322 management fees. Federal Farm Credit Bank Federal Farm Credit Bank 313312GM6 S6XOOCT0IEG5ABCC6L87 US313312GM65 U.S. Government Agency Debt Y 2019-06-05 2019-06-05 2019-06-05 N N N 0.0237 10998570.00 10998570.00 0.0379 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312GV6 S6XOOCT0IEG5ABCC6L87 US313312GV64 U.S. Government Agency Debt Y 2019-06-13 2019-06-13 2019-06-13 N N N 0.0237 11692395.00 11692395.00 0.0403 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312GW4 S6XOOCT0IEG5ABCC6L87 US313312GW48 U.S. Government Agency Debt Y 2019-06-14 2019-06-14 2019-06-14 N N N 0.0237 11811548.70 11811548.70 0.0407 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312HB9 S6XOOCT0IEG5ABCC6L87 US313312HB91 U.S. Government Agency Debt Y 2019-06-19 2019-06-19 2019-06-19 N N N 0.0238 8690952.00 8690952.00 0.0299 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312HH6 S6XOOCT0IEG5ABCC6L87 US313312HH61 U.S. Government Agency Debt Y 2019-06-25 2019-06-25 2019-06-25 N N N 0.0238 8687559.00 8687559.00 0.0299 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312HX1 S6XOOCT0IEG5ABCC6L87 US313312HX12 U.S. Government Agency Debt Y 2019-07-09 2019-07-09 2019-07-09 N N N 0.0238 6185492.00 6185492.00 0.0213 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384GK9 2549001DPIFGXC1TOL40 US313384GK94 U.S. Government Agency Debt Y 2019-06-03 2019-06-03 2019-06-03 N N N 0.0001 11700000.00 11700000.00 0.0403 N Y Y N Federal Home Loan Bank Federal Home Loan Bank 313384GM5 2549001DPIFGXC1TOL40 US313384GM50 U.S. Government Agency Debt Y 2019-06-05 2019-06-05 2019-06-05 N N N 0.0237 8798856.00 8798856.00 0.0303 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384GP8 2549001DPIFGXC1TOL40 US313384GP81 U.S. Government Agency Debt Y 2019-06-07 2019-06-07 2019-06-07 N N N 0.0237 5998440.00 5998440.00 0.0207 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384GU7 2549001DPIFGXC1TOL40 US313384GU76 U.S. Government Agency Debt Y 2019-06-12 2019-06-12 2019-06-12 N N N 0.0237 5846577.75 5846577.75 0.0201 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384HJ1 2549001DPIFGXC1TOL40 US313384HJ13 U.S. Government Agency Debt Y 2019-06-26 2019-06-26 2019-06-26 N N N 0.0238 3694468.50 3694468.50 0.0127 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384HK8 2549001DPIFGXC1TOL40 US313384HK85 U.S. Government Agency Debt Y 2019-06-27 2019-06-27 2019-06-27 N N N 0.0238 9285492.00 9285492.00 0.0320 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384HY8 2549001DPIFGXC1TOL40 US313384HY89 U.S. Government Agency Debt Y 2019-07-10 2019-07-10 2019-07-10 N N N 0.0238 11971140.00 11971140.00 0.0412 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384JA8 2549001DPIFGXC1TOL40 US313384JA85 U.S. Government Agency Debt Y 2019-07-12 2019-07-12 2019-07-12 N N N 0.0238 4987325.00 4987325.00 0.0172 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396GK3 S6XOOCT0IEG5ABCC6L87 US313396GK33 U.S. Government Agency Debt Y 2019-06-03 2019-06-03 2019-06-03 N N N 0.0001 7400000.00 7400000.00 0.0255 N Y Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396GU1 S6XOOCT0IEG5ABCC6L87 US313396GU15 U.S. Government Agency Debt Y 2019-06-12 2019-06-12 2019-06-12 N N N 0.0237 29033005.75 29033005.75 0.1000 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396LG6 S6XOOCT0IEG5ABCC6L87 US313396LG65 U.S. Government Agency Debt Y 2019-09-04 2019-09-04 2019-09-04 N N N 0.0240 11857575.00 11857575.00 0.0408 N N N N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588GZ2 B1V7KEBTPIMZEU4LTD58 US313588GZ26 U.S. Government Agency Debt Y 2019-06-17 2019-06-17 2019-06-17 N N N 0.0237 11789262.00 11789262.00 0.0406 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588HG3 B1V7KEBTPIMZEU4LTD58 US313588HG36 U.S. Government Agency Debt Y 2019-06-24 2019-06-24 2019-06-24 N N N 0.0238 11684029.50 11684029.50 0.0402 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588HJ7 B1V7KEBTPIMZEU4LTD58 US313588HJ74 U.S. Government Agency Debt Y 2019-06-26 2019-06-26 2019-06-26 N N N 0.0238 10191740.54 10191740.54 0.0351 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588HP3 B1V7KEBTPIMZEU4LTD58 US313588HP35 U.S. Government Agency Debt Y 2019-07-01 2019-07-01 2019-07-01 N N N 0.0238 11578888.00 11578888.00 0.0399 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588HW8 B1V7KEBTPIMZEU4LTD58 US313588HW85 U.S. Government Agency Debt Y 2019-07-08 2019-07-08 2019-07-08 N N N 0.0238 3492037.50 3492037.50 0.0120 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588KC8 B1V7KEBTPIMZEU4LTD58 US313588KC84 U.S. Government Agency Debt Y 2019-08-07 2019-08-07 2019-08-07 N N N 0.0239 9758418.01 9758418.01 0.0336 N N N N Goldman Sachs & Co. LLC Goldman Sachs & Co. LLC 2.470000% FOR8UP27PHTHYVLBNG30 0000769993 318991007_2.47_0603 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 2026-09-11 3.000000 25000.00 26176.33 Agency Mortgage-Backed Securities Federal Home Loan Bank 2549001DPIFGXC1TOL40 2022-06-10 2.125000 210000.00 212096.37 Agency Mortgage-Backed Securities Federal Home Loan Bank 2549001DPIFGXC1TOL40 2019-07-24 2.303500 13029000.00 12982720.99 Agency Mortgage-Backed Securities FNMA B1V7KEBTPIMZEU4LTD58 2030-11-15 6.625000 880000.00 1237729.17 Agency Mortgage-Backed Securities FMAC S6XOOCT0IEG5ABCC6L87 2020-09-29 1.625000 3915000.00 3896926.29 Agency Mortgage-Backed Securities U.S. Treasury Bill 254900HROIFWPRGM1V77 2032-08-15 2.123652 115.20 83.38 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2034-02-15 2.125382 11.20 7.76 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2036-05-15 2.566343 0.41 0.27 U.S. Treasuries (including strips) FNMA B1V7KEBTPIMZEU4LTD58 2021-06-22 2.750000 1000000.00 1024259.44 Agency Mortgage-Backed Securities Y 2019-06-03 2019-06-03 2019-05-31 N N N 0.0247 19000000.00 19000000.00 0.0654 N Y Y N JPMorgan Chase JPMorgan Chase 2.480000% 8I5DZWZKVSZI1NUHU748 0001168163 446199002_2.48_0603 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2023-07-31 1.250000 12764000.00 12446580.33 U.S. Treasuries (including strips) Y 2019-06-03 2019-06-03 2019-06-03 N N N 0.0248 12200000.00 12200000.00 0.0420 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796RW1 254900HROIFWPRGM1V77 US912796RW15 U.S. Treasury Debt Y 2019-07-05 2019-07-05 2019-07-05 N N N 0.0234 1297340.77 1297340.77 0.0045 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796SC4 254900HROIFWPRGM1V77 US912796SC42 U.S. Treasury Debt Y 2019-08-08 2019-08-08 2019-08-08 N N N 0.0233 11849985.25 11849985.25 0.0408 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796VE6 254900HROIFWPRGM1V77 US912796VE60 U.S. Treasury Debt Y 2019-06-04 2019-06-04 2019-06-04 N N N 0.0229 11949250.85 11949250.85 0.0411 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796VJ5 254900HROIFWPRGM1V77 US912796VJ57 U.S. Treasury Debt Y 2019-07-02 2019-07-02 2019-07-02 N N N 0.0234 6987015.49 6987015.49 0.0241 N Y Y N MFS SERIES TRUST IV 2019-06-07 /s/Kasey L. Phillips Kasey L. Phillips Assistant Treasurer