XENON PHARMACEUTICALS INC

Ticker: XENE CUSIP: 98420N105 Class: Common Stock

Ativo Capital Management LLC's Holding History (CIK: 0001423065)

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

Q1 2015

Shares 137,389 Value ($000) $2,317 Avg Close $18.47 Range $14.03 - $23.50

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	137,389	$2,317	$18.47	$14.03 - $23.50