ALDER BIOPHARMACEUTICALS INC

CUSIP: 014339105 Class: COM

PERCEPTIVE ADVISORS LLC's Holding History (CIK: 0001224962)

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

Q1 2017
Shares 384,169 Value ($000) $7,991 Avg Close — Range —
Q4 2016
Shares 384,169 Value ($000) $7,991 Avg Close — Range —
Q3 2016
Shares 391,280 Value ($000) $12,822 Avg Close — Range —
Q1 2015
Shares 150,000 Value ($000) $4,329 Avg Close — Range —