N-MFP2 0000893818 XXXXXXXX 2023-12-31 0000893818 5493008LW2651I1QB503 S000004275 1 N N 033-54126 BlackRock Fund Advisors 801-22609 BlackRock International Limited 801-51087 PricewaterhouseCoopers Philadelphia PA BlackRock Advisors, LLC State Street Bank and Trust Company 0000839287 085-05003 Y 0000915092 Money Market Master Portfolio S000004283 N N Prime N 1 1 21317942910.17 23300172591.24 23930388600.53 23224381935.96 24741798165.52 33681046242.64 34298701508.61 34735759100.73 33928471199.37 33252962654.38 0.3215 0.3569 0.3598 0.3540 0.3922 0.5080 0.5254 0.5223 0.5172 0.5272 0.00 62251851807.35 0.00 975.31 314060750.73 61937792031.93 61899940940.8700 1.0004 0.0563 1.0005 1.0005 1.0006 1.0006 1.0006 C000074119 100000000.00 61937792031.93 61899940940.8700 1.0005 1.0005 1.0006 1.0006 1.0006 4728836887.36 5794951185.66 6809557395.79 6388515074.26 7177615334.33 6243565880.95 6423509302.69 7685025642.68 3472901195.16 6058571806.71 24457761708.60 28714614862.05 0.0554 Y BlackRock Advisors, LLC: Advisor Fee- $930 Money Market Master Portfolio Money Market Master Portfolio 0.000000% 0000915092 Investment Company Y 2024-01-02 2024-01-02 2024-01-02 N N N 0.0000 62251851807.35 62251851807.35 1.0000 N Y Y N BlackRock Funds III 2024-01-08 /s/ Chuck Pulsfort Chuck Pulsfort Assistant Treasurer