QUARTERHILL INC

Ticker: QTRHF CUSIP: 747713105 Class: COM

CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM's Holding History (CIK: 0000919079)

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

Q1 2018

Shares 400,500 Value ($000) $581 Avg Close $1.68 Range $1.45 - $1.98

Q4 2017

Shares 400,500 Value ($000) $737 Avg Close $1.75 Range $1.41 - $2.12

Q3 2017

Shares 400,500 Value ($000) $529 Avg Close $1.38 Range $1.26 - $1.50

Q2 2017

Shares 400,500 Value ($000) $577 Avg Close $1.65 Range $1.36 - $2.20

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	400,500	$581	$1.68	$1.45 - $1.98
Q4 2017	400,500	$737	$1.75	$1.41 - $2.12
Q3 2017	400,500	$529	$1.38	$1.26 - $1.50
Q2 2017	400,500	$577	$1.65	$1.36 - $2.20