XBIOTECH INC

Ticker: XBIT CUSIP: 98400H102 Class: Foreign Stock

BAKER BROS. ADVISORS LP's Holding History (CIK: 0001263508)

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

Q3 2019

Shares 521,327 Value ($000) $5,453 Avg Close $7.02 Range $5.89 - $9.22

Q2 2019

Shares 380,442 Value ($000) $2,884 Avg Close $7.49 Range $5.83 - $10.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	521,327	$5,453	$7.02	$5.89 - $9.22
Q2 2019	380,442	$2,884	$7.49	$5.83 - $10.00