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LLC Goldman Sachs & Co. LLC 0.120 FOR8UP27PHTHYVLBNG30 BRWA9H9N7 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N FEDERAL FARM CREDIT BANKS FUNDING CORP 2040-06-18 2.090000 1000.00 1005.90 Agency Debentures and Agency Strips UNITED STATES TREASURY 254900HROIFWPRGM1V77 2024-09-30 2.125000 3703600.00 3977004.84 U.S. Treasuries (including strips) Y Fitch F1 Moody's NR Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0012 3900000.00 3900000.00 0.0348 N Y Y N Federal Home Loan Mortgage Corp. Federal Home Loan Mortgage Corp. 1.125 3137EAEC9 S6XOOCT0IEG5ABCC6L87 US3137EAEC95 U.S. Government Agency Debt Y Fitch Agency Moody's Agency Standard & Poor's AA+ 2021-08-12 2021-08-12 2021-08-12 N N N 0.0014 181388.51 181388.51 0.0016 N N N N Mizuho Securities USA LLC Mizuho Securities USA LLC 0.090 7TK5RJIZDFROZCA6XF66 BRWA9PEW3 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N UNITED STATES TREASURY 254900HROIFWPRGM1V77 2029-05-15 2.375000 2669900.00 3060112.27 U.S. Treasuries (including strips) Y Fitch NR Moody's P-1 Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0009 3000000.00 3000000.00 0.0268 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.093 912796B65 254900HROIFWPRGM1V77 US912796B658 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-02-02 2021-02-02 2021-02-02 N N N 0.0009 2804319.00 2804319.00 0.0250 N Y Y N BNP Paribas SA BNP Paribas SA 0.090 R0MUWSFPU8MPRO8K5P83 BRWA9PF77 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N GNAR AF MA5204 M 2048-04-20 3.500000 11586279.00 4077950.70 Agency Mortgage-Backed Securities GNAR AF MA5409 M 2048-08-20 3.500000 3293.00 1407.33 Agency Mortgage-Backed Securities GNAR FT 082831 M 2041-05-20 1.875000 1266.00 71.53 Agency Mortgage-Backed Securities GNAR AS 082914 M 2041-08-20 3.250000 1106.00 18.57 Agency Mortgage-Backed Securities GNAR AS 082928 M 2041-08-20 3.750000 1385.00 52.05 Agency Mortgage-Backed Securities GNAR AS 082972 M 2041-09-20 3.625000 1627.00 103.76 Agency Mortgage-Backed Securities GNAR AS 082975 M 2041-10-20 3.125000 2424.00 128.77 Agency Mortgage-Backed Securities GNAR WN 784593 M 2043-06-20 3.119000 1000.00 267.51 Agency Mortgage-Backed Securities Y Fitch F1 Moody's P-1 Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0009 4000000.00 4000000.00 0.0357 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.123 912796B73 254900HROIFWPRGM1V77 US912796B732 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-02-09 2021-02-09 2021-02-09 N N N 0.0012 1060335.38 1060335.38 0.0095 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.094 912796B81 254900HROIFWPRGM1V77 US912796B815 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-02-16 2021-02-16 2021-02-16 N N N 0.0009 1999440.56 1999440.56 0.0178 N Y Y N Bank of America Securities, Inc. Bank of America Securities, Inc. 0.090 549300HN4UKV1E2R3U73 BRWA9PG01 U.S. Government Agency Repurchase Agreement, collateralized only by U.S. Government Agency securities, U.S. Treasuries, and cash Y N GINNIE MAE II 2070-08-20 2.887000 3512365.00 4080000.33 Agency Mortgage-Backed Securities Y Fitch F1+ Moody's NR Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0009 4000000.00 4000000.00 0.0357 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.092 912796B99 254900HROIFWPRGM1V77 US912796B997 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-02-23 2021-02-23 2021-02-23 N N N 0.0009 3998832.32 3998832.32 0.0357 N Y Y N TD Securities USA LLC TD Securities USA LLC 0.070 SUVUFHICNZMP2WKHG940 BRWA9PEG8 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N UNITED STATES TREASURY 254900HROIFWPRGM1V77 2020-12-17 0.000000 5100700.00 5100077.71 U.S. Treasuries (including strips) Y Fitch NR Moody's NR Standard & Poor's A-1+ 2020-11-02 2020-11-02 2020-11-02 N N N 0.0007 5000000.00 5000000.00 0.0446 N Y Y N Wells Fargo Securities LLC Wells Fargo Securities LLC 0.070 VYVVCKR63DVZZN70PB21 BRWA9PET0 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N 3 BOND 48 2048-08-15 3.000000 7677400.00 10200006.71 U.S. Treasuries (including strips) Y Fitch NR Moody's NR Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0007 10000000.00 10000000.00 0.0892 N Y Y N JP Morgan Securities LLC JP Morgan Securities LLC 0.070 ZBUT11V806EZRVTWT807 BRWA9PFF9 U.S. Treasury Repurchase Agreement, if collateralized only by U.S. Treasuries (including Strips) and cash Y N UNITED STATES TREASURY 254900HROIFWPRGM1V77 2021-04-01 0.000000 100.00 99.95 U.S. Treasuries (including strips) UNITED STATES TREASURY 254900HROIFWPRGM1V77 2022-09-30 1.875000 1600.00 1654.79 U.S. Treasuries (including strips) UNITED STATES TREASURY 254900HROIFWPRGM1V77 2025-01-31 1.375000 5350100.00 5608291.21 U.S. Treasuries (including strips) Y Fitch F1+ Moody's P-1 Standard & Poor's A-1 2020-11-02 2020-11-02 2020-11-02 N N N 0.0007 5500000.00 5500000.00 0.0491 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.079 912796TU3 254900HROIFWPRGM1V77 US912796TU31 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2020-12-03 2020-12-03 2020-12-03 N N N 0.0008 1999853.62 1999853.62 0.0178 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.093 912796UC1 254900HROIFWPRGM1V77 US912796UC14 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-01-28 2021-01-28 2021-01-28 N N N 0.0009 939784.19 939784.19 0.0084 N Y Y N U.S. Treasury Bills U.S. Treasury Bills 0.100 912796XE4 254900HROIFWPRGM1V77 US912796XE43 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's A-1+ 2021-02-25 2021-02-25 2021-02-25 N N N 0.0010 999676.56 999676.56 0.0089 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 1.750 9128283G3 254900HROIFWPRGM1V77 US9128283G32 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2020-11-15 2020-11-15 2020-11-15 N N N 0.0044 110062.52 110062.52 0.0010 N Y Y N U.S. Treasury Notes U.S. Treasury Notes 2.000 9128283Q1 254900HROIFWPRGM1V77 US9128283Q14 U.S. Treasury Debt Y Fitch Govt Moody's Govt Standard & Poor's AA+ 2021-01-15 2021-01-15 2021-01-15 N N N 0.0023 190702.41 190702.41 0.0017 N Y Y N BlackRock Series Fund, Inc. 2020-11-05 /s/Neal J. Andrews Neal J. Andrews Chief Financial Officer