X0101 EFFECT 33 LIVE 2024-07-23 09:00:00

N-14

0000893818 BlackRock Funds III 333-279622 0000893818 BlackRock Funds III S000004280 BlackRock LifePath Dynamic Retirement Fund C000012001 Investor A Shares 0000893818 BlackRock Funds III S000029259 BlackRock LifePath Dynamic 2025 Fund C000089947 Investor A Shares 0000893818 BlackRock Funds III S000004280 BlackRock LifePath Dynamic Retirement Fund C000012002 Institutional Shares 0000893818 BlackRock Funds III S000029259 BlackRock LifePath Dynamic 2025 Fund C000089949 Institutional Shares 0000893818 BlackRock Funds III S000004280 BlackRock LifePath Dynamic Retirement Fund C000051483 Class K 0000893818 BlackRock Funds III S000029259 BlackRock LifePath Dynamic 2025 Fund C000089950 Class K Shares 0000893818 BlackRock Funds III S000004280 BlackRock LifePath Dynamic Retirement Fund C000082489 Class R Shares 0000893818 BlackRock Funds III S000029259 BlackRock LifePath Dynamic 2025 Fund C000089951 Class R Shares 0000893818 BlackRock Funds III S000004280 BlackRock LifePath Dynamic Retirement Fund C000088841 Investor C Shares 0000893818 BlackRock Funds III S000029259 BlackRock LifePath Dynamic 2025 Fund C000089948 Investor C Shares