X0306 4 2021-03-10 0 0001315098 Roblox Corp RBLX 0001834989 Carvalho Christopher C/O ROBLOX CORPORATION 970 PARK PLACE SAN MATEO CA 94403 1 0 0 0 Class A Common Stock 2021-03-10 4 S 0 500000 64.50 D 195968 I See Footnote Class A Common Stock 1324476 D These shares are held directly by the Christopher P. Carvalho Revocable Trust dated October 11, 2017 for which the reporting person serves as trustee. The reporting person may be deemed to have beneficial ownership of the shares held by the trust. /s/ Mark Reinstra Attorney-in-Fact for Christopher Carvalho 2021-03-12