CHEMOCENTRYX INC

CUSIP: 16383L106 Class: COMMON STOCK

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

Note: Option positions (PUT/CALL) are excluded.

Q3 2013
Shares 325,393 Value ($000) $1,809 Avg Close — Range —
Q2 2013
Shares 1,204,096 Value ($000) $17,025,917 Avg Close — Range —