You are double counting Breyer and Accel's shares -- footnotes give the key details.
Breyer personally owns 3%, and is deemed to control Accel's 27%. So collectively, Breyer is considered to control 30% of voting shares.
Read correctly (not adjusting for any preferred or convertible notes that could be in the structure somewhere), the amount held by Breyer, USV, Accel, Tiger Global, and Index should add up to ~65%
Breyer personally owns 3%, and is deemed to control Accel's 27%. So collectively, Breyer is considered to control 30% of voting shares.
Read correctly (not adjusting for any preferred or convertible notes that could be in the structure somewhere), the amount held by Breyer, USV, Accel, Tiger Global, and Index should add up to ~65%