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Moody's Agency Standard & Poor's A-1+ 2020-02-13 2020-02-13 2020-02-13 N N N 0.0162 214000.01 214000.01 0.0019 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.631 313384UL1 2549001DPIFGXC1TOL40 US313384UL12 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-03-18 2020-03-18 2020-03-18 N N N 0.0163 124228.54 124228.54 0.0011 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.631 313384UN7 2549001DPIFGXC1TOL40 US313384UN77 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-03-20 2020-03-20 2020-03-20 N N N 0.0163 1371359.67 1371359.67 0.0121 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.632 313384UT4 2549001DPIFGXC1TOL40 US313384UT48 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-03-25 2020-03-25 2020-03-25 N N N 0.0163 571271.29 571271.29 0.0050 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.624 313384VH9 2549001DPIFGXC1TOL40 US313384VH90 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-04-08 2020-04-08 2020-04-08 N N N 0.0162 784417.33 784417.33 0.0069 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.624 313384VQ9 2549001DPIFGXC1TOL40 US313384VQ99 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-04-15 2020-04-15 2020-04-15 N N N 0.0162 694835.55 694835.55 0.0061 N N N N Federal Home Loan Bank Discount Notes Federal Home Loan Bank Discount Notes 1.626 313384VZ9 2549001DPIFGXC1TOL40 US313384VZ98 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-04-24 2020-04-24 2020-04-24 N N N 0.0163 352238.89 352238.89 0.0031 N N N N Federal Home Loan Mortgage Corp. Discount Notes Federal Home Loan Mortgage Corp. Discount Notes 1.627 313396RX3 S6XOOCT0IEG5ABCC6L87 US313396RX35 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-01-17 2020-01-17 2020-01-17 N N N 0.0163 189341.65 189341.65 0.0017 N N N N Federal Home Loan Mortgage Corp. Discount Notes Federal Home Loan Mortgage Corp. Discount Notes 1.631 313396UL5 S6XOOCT0IEG5ABCC6L87 US313396UL59 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's A-1+ 2020-03-18 2020-03-18 2020-03-18 N N N 0.0163 1659693.31 1659693.31 0.0147 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 1.846 3133EHNT6 US3133EHNT68 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-11-19 2020-06-19 2020-06-19 N N N 0.0184 999737.12 999737.12 0.0088 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 1.946 3133EJ2N8 US3133EJ2N89 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-11-14 2020-12-14 2020-12-14 N N N 0.0188 684593.94 684593.94 0.0061 N N N N U.S. Treasury Bills U.S. Treasury Bills 1.548 912796RT8 254900HROIFWPRGM1V77 US912796RT85 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2020-01-02 2020-01-02 2020-01-02 N N N 0.0155 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Agency Mortgage-Backed Securities GINNIE MAE I 2032-11-15 6.000000 314079.00 7103.93 Agency Mortgage-Backed Securities GINNIE MAE I 2036-05-15 5.000000 344375.00 7713.74 Agency Mortgage-Backed Securities GINNIE MAE I 2025-12-15 8.000000 1011670.00 22802.99 Agency Mortgage-Backed Securities FHLMC_42-91 2054-01-15 3.978750 1258924.00 57563.08 Agency Collateralized Mortgage Obligation GNMA_18-18G 2048-02-20 4.000000 2187016.00 99483.19 Agency Collateralized Mortgage Obligation GINNIE MAE I 2034-07-15 5.500000 2473220.00 100047.59 Agency Mortgage-Backed Securities GNMA_17-121D 2047-05-20 3.500000 2700232.00 189168.30 Agency Collateralized Mortgage Obligation GNMA_16-147B 2046-10-20 4.000000 3750000.00 510997.16 Agency Collateralized Mortgage Obligation FHLMC_3996 2039-07-15 4.628750 7088999.00 17911.43 Agency Collateralized Mortgage Obligation FNMA_12-88 2042-07-25 4.847250 8425000.00 248357.35 Agency Collateralized Mortgage Obligation FHLMC_39-97 2039-11-15 4.628750 36666624.00 72890.87 Agency Collateralized Mortgage Obligation FNMA_06-3 2035-07-25 4.877250 44133400.00 266206.12 Agency Collateralized Mortgage Obligation FNW_97-1 2027-04-18 6.372500 58799995.00 18524.58 Agency Collateralized Mortgage Obligation FNMA_10-21A 2039-09-25 5.000000 60000000.00 403617.04 Agency Collateralized Mortgage Obligation FNMA_07-47 2037-05-25 4.967250 72006900.00 498072.39 Agency Collateralized Mortgage Obligation Y Fitch F1+ Moody's P-1 Standard & Poor's A-1 2019-11-01 2019-12-05 2019-12-05 Y JP MORGAN SECURITIES LLC 1.0000 35 N Fitch AA Moody's Aa3 Standard & Poor's A+ N N 0.0195 2500000.00 2500000.00 0.0221 N N N Y Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 1.872 3133EKRK4 US3133EKRK43 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-11-18 2020-06-18 2020-06-18 N N N 0.0188 149916.81 149916.81 0.0013 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 1.852 3133EKUG9 US3133EKUG93 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2020-01-08 2021-07-08 2021-07-08 N N N 0.0186 274624.36 274624.36 0.0024 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.192 3133EKV29 US3133EKV297 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-11-01 2021-07-01 2021-07-01 N N N 0.0191 380272.59 380272.59 0.0034 N N N N U.S. Treasury Bills U.S. Treasury Bills 1.526 912796TJ8 254900HROIFWPRGM1V77 US912796TJ85 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2020-09-10 2020-09-10 2020-09-10 N N N 0.0153 261544.09 261544.09 0.0023 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 1.543 912796TQ2 254900HROIFWPRGM1V77 US912796TQ29 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2020-04-09 2020-04-09 2020-04-09 N N N 0.0154 804523.50 804523.50 0.0071 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 1.232 912796WC9 254900HROIFWPRGM1V77 US912796WC95 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2019-11-05 2019-11-05 2019-11-05 N N N 0.0123 2999493.60 2999493.60 0.0265 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 1.515 912796WG0 254900HROIFWPRGM1V77 US912796WG00 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2019-12-03 2019-12-03 2019-12-03 N N N 0.0152 2995952.67 2995952.67 0.0265 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.250 9128284C1 254900HROIFWPRGM1V77 US9128284C19 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2020-03-31 2020-03-31 2020-03-31 N N N 0.0161 240618.75 240618.75 0.0021 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.375 9128284J6 254900HROIFWPRGM1V77 US9128284J61 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2020-04-30 2020-04-30 2020-04-30 N N N 0.0163 476781.25 476781.25 0.0042 N Y Y N BlackRock SeriesFund 2019-11-06 /s/Neal J. Andrews Neal J. Andrews Chief Financial Officer