XBIOTECH INC

Ticker: XBIT CUSIP: 98400H102 Class: Foreign Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2017

Shares 3,192 Value ($000) $13 Avg Close $3.63 Range $3.23 - $4.40

Q1 2017

Shares 3,133 Value ($000) $52 Avg Close $11.28 Range $8.07 - $17.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	3,192	$13	$3.63	$3.23 - $4.40
Q1 2017	3,133	$52	$11.28	$8.07 - $17.39