XENCOR INC

Ticker: XNCR CUSIP: 98401F105 Class: Common Stock

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2020

Shares 21,425 Value ($000) $935 Avg Close $41.35 Range $36.62 - $47.85

Q3 2020

Shares 21,476 Value ($000) $833 Avg Close $34.74 Range $29.28 - $43.90

Q2 2020

Shares 18,619 Value ($000) $603 Avg Close $30.65 Range $26.80 - $34.92

Q1 2020

Shares 17,188 Value ($000) $514 Avg Close $33.13 Range $19.35 - $38.73

Q4 2019

Shares 17,188 Value ($000) $591 Avg Close $36.53 Range $31.51 - $42.08

Q3 2019

Shares 16,726 Value ($000) $564 Avg Close $39.92 Range $33.54 - $46.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	21,425	$935	$41.35	$36.62 - $47.85
Q3 2020	21,476	$833	$34.74	$29.28 - $43.90
Q2 2020	18,619	$603	$30.65	$26.80 - $34.92
Q1 2020	17,188	$514	$33.13	$19.35 - $38.73
Q4 2019	17,188	$591	$36.53	$31.51 - $42.08
Q3 2019	16,726	$564	$39.92	$33.54 - $46.33