FIBROGEN INC

CUSIP: 31572Q808 Class: Common Stock

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q3 2017
Shares 50,000 Value ($000) $2,690 Avg Close — Range —
Q2 2017
Shares 75,000 Value ($000) $2,423 Avg Close — Range —
Q1 2017
Shares 75,000 Value ($000) $1,849 Avg Close — Range —
Q4 2016
Shares 86,072 Value ($000) $1,842 Avg Close — Range —
Q3 2016
Shares 56,072 Value ($000) $1,161 Avg Close — Range —
Q2 2016
Shares 56,072 Value ($000) $920 Avg Close — Range —
Q1 2016
Shares 56,072 Value ($000) $1,194 Avg Close — Range —
Q4 2015
Shares 25,000 Value ($000) $762 Avg Close — Range —
Q3 2015
Shares 25,000 Value ($000) $548 Avg Close — Range —