144 0001189140 XXXXXXXX LIVE 0001770787 10x Genomics, Inc. 001-39035 6230 STONERIDGE MALL ROAD PLEASANTON CA 94588 (925) 401-7300 STUELPNAGEL JOHN R Director Class A common Wells Fargo Clearing Services

1 North Jefferson Avenue St. Louis MO 63103

20000 1155032.36 120212296 08/11/2026 Nasdaq Class A common 08/21/2017 Granted as founders shares Issuer N 20000 08/21/2017 N/A Y shares were sold for the account of the John R Stuelpnagel Trust, John R Stuelpnagel as trustee. 08/11/2026 John R Stuelpnagel