QUARTERHILL INC

Ticker: QTRHF CUSIP: 747713105 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q2 2019

Shares 160,239 Value ($000) $173 Avg Close $1.08 Range $1.01 - $1.14

Q3 2018

Shares 49,900 Value ($000) $70 Avg Close $1.29 Range $1.01 - $1.55

Q1 2018

Shares 89,236 Value ($000) $129 Avg Close $1.68 Range $1.45 - $1.98

Q4 2017

Shares 161,000 Value ($000) $296 Avg Close $1.75 Range $1.41 - $2.12

Q3 2017

Shares 183,600 Value ($000) $242 Avg Close $1.38 Range $1.26 - $1.50

Q2 2017

Shares 460,487 Value ($000) $663 Avg Close $1.65 Range $1.36 - $2.20

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	160,239	$173	$1.08	$1.01 - $1.14
Q3 2018	49,900	$70	$1.29	$1.01 - $1.55
Q1 2018	89,236	$129	$1.68	$1.45 - $1.98
Q4 2017	161,000	$296	$1.75	$1.41 - $2.12
Q3 2017	183,600	$242	$1.38	$1.26 - $1.50
Q2 2017	460,487	$663	$1.65	$1.36 - $2.20