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Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.503 3133EHNT6 US3133EHNT68 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-19 2020-06-19 2020-06-19 N N N 0.0252 999861.72 999861.72 0.0081 N N N N U.S. Treasury Bill U.S. Treasury Bill 2.265 912796QY8 254900HROIFWPRGM1V77 US912796QY89 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2019-02-21 2019-02-21 2019-02-21 N N N 0.0226 963744.16 963744.16 0.0078 N Y Y N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.539 3133EJ2N8 US3133EJ2N89 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-14 2020-12-14 2020-12-14 N N N 0.0259 684401.99 684401.99 0.0055 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.463 3133EJNN5 US3133EJNN54 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-07 2020-02-07 2020-02-07 N N N 0.0249 1544484.54 1544484.54 0.0125 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.458 3133EJXD6 US3133EJXD62 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-17 2020-08-17 2020-08-17 N N N 0.0253 454502.44 454502.44 0.0037 N N N N Federal Farm Credit Bank Variable Rate Notes Federal Farm Credit Bank Variable Rate Notes 2.479 3133EJZA0 US3133EJZA06 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-11 2020-09-11 2020-09-11 N N N 0.0254 544422.50 544422.50 0.0044 N N N N Federal Home Loan Mortgage Corp. Variable Rate Notes Federal Home Loan Mortgage Corp. Variable Rate Notes 2.421 3134GSDS1 S6XOOCT0IEG5ABCC6L87 US3134GSDS16 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-08 2019-08-08 2019-08-08 N N N 0.0249 964633.78 964633.78 0.0078 N N N N Federal Home Loan Mortgage Corp. Variable Rate Notes Federal Home Loan Mortgage Corp. Variable Rate Notes 2.380 3134GSU60 S6XOOCT0IEG5ABCC6L87 US3134GSU600 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-02-01 2019-04-17 2019-04-17 N N N 0.0241 289980.61 289980.61 0.0023 N N N N U.S. Treasury Bill U.S. Treasury Bill 2.347 912796UR8 254900HROIFWPRGM1V77 US912796UR82 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2019-03-05 2019-03-05 2019-03-05 N N N 0.0235 3647261.49 3647261.49 0.0295 N Y Y N Federal National Mortgage Association Federal National Mortgage Association 0.875 3135G0N33 B1V7KEBTPIMZEU4LTD58 US3135G0N339 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2019-08-02 2019-08-02 2019-08-02 N N N 0.0253 724013.58 724013.58 0.0058 N N N N U.S. Treasury Notes U.S. Treasury Notes 1.375 9128282K5 254900HROIFWPRGM1V77 US9128282K52 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2019-07-31 2019-07-31 2019-07-31 N N N 0.0247 104433.98 104433.98 0.0008 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.450 9128285H9 254900HROIFWPRGM1V77 US9128285H96 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2019-02-01 2020-10-31 2020-10-31 N N N 0.0250 1298791.62 1298791.62 0.0105 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.520 9128285Y2 254900HROIFWPRGM1V77 US9128285Y20 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2019-02-01 2021-01-31 2021-01-31 N N N 0.0252 999901.90 999901.90 0.0081 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 3.125 912828KQ2 254900HROIFWPRGM1V77 US912828KQ20 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2019-05-15 2019-05-15 2019-05-15 N N N 0.0245 110214.84 110214.84 0.0009 N Y Y N BlackRock SeriesFund 2019-02-06 /s/Neal J. Andrews Neal J. Andrews Chief Financial Officer