N-MFP2 0000063068 XXXXXXXX 2019-11-30 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 35 35 74572242.24 51722273.35 62007890.02 68236035.28 77965898.81 268070744.09 260483017.65 233220828.03 258166265.97 246716908.77 0.2440 0.1684 0.2015 0.2089 0.2522 0.8772 0.8482 0.7580 0.7903 0.7981 705.75 308895844.73 308884002.14 235521.96 425172.27 308695057.58 308695008.8330 1.0000 0.0165 1.0001 1.0001 1.0001 1.0000 1.0000 C000006517 1000.00 308695057.58 308695008.8330 1.0001 1.0001 1.0001 1.0000 1.0000 1847512.44 3164748.39 3775646.79 1766899.89 2968216.32 2407505.71 3355104.97 4164593.24 3820614.16 1468324.15 14337683.21 11116265.68 0.0106 Y During the period, MFS waived: $2,584 management fees. Federal Farm Credit Bank Federal Farm Credit Bank 313312QB9 US313312QB90 U.S. Government Agency Debt Y 2019-12-04 2019-12-04 2019-12-04 N N N 0.0160 17798437.52 17798437.52 0.0577 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312QC7 US313312QC73 U.S. Government Agency Debt Y 2019-12-05 2019-12-05 2019-12-05 N N N 0.0160 5999209.98 5999209.98 0.0194 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312SB7 US313312SB72 U.S. Government Agency Debt Y 2020-01-21 2020-01-21 2020-01-21 N N N 0.0162 21662057.15 21662057.15 0.0702 N N Y N Federal Farm Credit Bank Federal Farm Credit Bank 313312SL5 US313312SL54 U.S. Government Agency Debt Y 2020-01-30 2020-01-30 2020-01-30 N N N 0.0162 5720055.56 5720055.56 0.0185 N N N N Federal Farm Credit Bank Federal Farm Credit Bank 313312SM3 US313312SM38 U.S. Government Agency Debt Y 2020-01-31 2020-01-31 2020-01-31 N N N 0.0162 9908672.25 9908672.25 0.0321 N N N N Federal Home Loan Bank Federal Home Loan Bank 313384QR3 2549001DPIFGXC1TOL40 US313384QR38 U.S. Government Agency Debt Y 2019-12-18 2019-12-18 2019-12-18 N N N 0.0160 13585453.32 13585453.32 0.0440 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384RL5 2549001DPIFGXC1TOL40 US313384RL58 U.S. Government Agency Debt Y 2020-01-06 2020-01-06 2020-01-06 N N N 0.0161 15206457.01 15206457.01 0.0493 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384RQ4 2549001DPIFGXC1TOL40 US313384RQ46 U.S. Government Agency Debt Y 2020-01-10 2020-01-10 2020-01-10 N N N 0.0161 9154204.68 9154204.68 0.0297 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384RX9 2549001DPIFGXC1TOL40 US313384RX96 U.S. Government Agency Debt Y 2020-01-17 2020-01-17 2020-01-17 N N N 0.0162 12564421.27 12564421.27 0.0407 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384SC4 2549001DPIFGXC1TOL40 US313384SC41 U.S. Government Agency Debt Y 2020-01-22 2020-01-22 2020-01-22 N N N 0.0162 12277282.99 12277282.99 0.0398 N N Y N Federal Home Loan Bank Federal Home Loan Bank 313384SZ3 2549001DPIFGXC1TOL40 US313384SZ36 U.S. Government Agency Debt Y 2020-02-12 2020-02-12 2020-02-12 N N N 0.0163 12260640.00 12260640.00 0.0397 N N N N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396QA4 S6XOOCT0IEG5ABCC6L87 US313396QA41 U.S. Government Agency Debt Y 2019-12-03 2019-12-03 2019-12-03 N N N 0.0160 5999736.66 5999736.66 0.0194 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396QB2 S6XOOCT0IEG5ABCC6L87 US313396QB24 U.S. Government Agency Debt Y 2019-12-04 2019-12-04 2019-12-04 N N N 0.0160 2999736.66 2999736.66 0.0097 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396QC0 S6XOOCT0IEG5ABCC6L87 US313396QC07 U.S. Government Agency Debt Y 2019-12-05 2019-12-05 2019-12-05 N N N 0.0160 15347978.87 15347978.87 0.0497 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396QD8 S6XOOCT0IEG5ABCC6L87 US313396QD89 U.S. Government Agency Debt Y 2019-12-06 2019-12-06 2019-12-06 N N N 0.0160 7998595.52 7998595.52 0.0259 N N Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 313396TH6 S6XOOCT0IEG5ABCC6L87 US313396TH66 U.S. Government Agency Debt Y 2020-02-20 2020-02-20 2020-02-20 N N N 0.0163 15200759.93 15200759.93 0.0492 N N N N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588PZ2 B1V7KEBTPIMZEU4LTD58 US313588PZ25 U.S. Government Agency Debt Y 2019-12-02 2019-12-02 2019-12-02 N N N 0.0001 13770000.00 13770000.00 0.0446 N Y Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588RG2 B1V7KEBTPIMZEU4LTD58 US313588RG26 U.S. Government Agency Debt Y 2020-01-02 2020-01-02 2020-01-02 N N N 0.0161 17748665.74 17748665.74 0.0575 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588RV9 B1V7KEBTPIMZEU4LTD58 US313588RV92 U.S. Government Agency Debt Y 2020-01-15 2020-01-15 2020-01-15 N N N 0.0162 10414721.35 10414721.35 0.0337 N N Y N Federal National Mortgage Assoc. Federal National Mortgage Assoc. 313588SK2 B1V7KEBTPIMZEU4LTD58 US313588SK29 U.S. Government Agency Debt Y 2020-01-29 2020-01-29 2020-01-29 N N N 0.0162 19076008.06 19076008.06 0.0618 N N N N Goldman Sachs & Co. LLC Goldman Sachs & Co. LLC 1.600000% FOR8UP27PHTHYVLBNG30 0000769993 318991007_1.60_1202 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2045-05-15 2.316730 26946800.00 15300042.73 U.S. Treasuries (including strips) Y 2019-12-02 2019-12-02 2019-12-02 N N N 0.0160 15000000.00 15000000.00 0.0486 N Y Y N JP Morgan Securities LLC JPMorgan Chase 1.630000% ZBUT11V806EZRVTWT807 0001168163 446199002_1.63_1202 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N U.S. Treasury Bill 254900HROIFWPRGM1V77 2021-08-15 8.125000 9412600.00 10637805.50 U.S. Treasuries (including strips) U.S. Treasury Bill 254900HROIFWPRGM1V77 2044-05-15 3.375000 4059200.00 4974452.49 U.S. Treasuries (including strips) Y 2019-12-02 2019-12-02 2019-12-02 N N N 0.0163 15304000.00 15304000.00 0.0496 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796TA7 254900HROIFWPRGM1V77 US912796TA76 U.S. Treasury Debt Y 2020-01-09 2020-01-09 2020-01-09 N N N 0.0159 16931953.25 16931953.25 0.0549 N Y Y N U.S. Treasury Bill U.S. Treasury Bill 912796TB5 254900HROIFWPRGM1V77 US912796TB59 U.S. Treasury Debt Y 2020-01-16 2020-01-16 2020-01-16 N N N 0.0159 16966796.96 16966796.96 0.0550 N Y Y N MFS SERIES TRUST IV 2019-12-06 /s/Kasey L. Phillips Kasey L. Phillips Assistant Treasurer