XENCOR INC

Ticker: XNCR CUSIP: 98401F105 Class: Common Stock

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

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

Q4 2017

Shares 5,796 Value ($000) $127 Avg Close $21.68 Range $18.97 - $24.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	5,796	$127	$21.68	$18.97 - $24.97