WESTERN DIGITAL CORP

Ticker: WDC CUSIP: 958102105 Class: EQTY

GRIMES & COMPANY, INC.'s Holding History (CIK: 0001321993)

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

Q3 2018

Shares 97,492 Value ($000) $5,707 Avg Close $46.86 Range $37.47 - $56.00

Q2 2018

Shares 63,069 Value ($000) $4,882 Avg Close $58.47 Range $52.75 - $64.87

Q1 2018

Shares 82,110 Value ($000) $7,576 Avg Close $61.52 Range $53.81 - $73.88

Q4 2017

Shares 88,111 Value ($000) $7,008 Avg Close $58.49 Range $52.57 - $64.05

Q3 2017

Shares 89,194 Value ($000) $7,706 Avg Close $59.93 Range $53.45 - $65.37

Q2 2017

Shares 104,811 Value ($000) $9,286 Avg Close $59.68 Range $54.65 - $64.49

Q1 2017

Shares 115,180 Value ($000) $9,506 Avg Close $51.29 Range $46.27 - $57.21

Q4 2016

Shares 128,745 Value ($000) $8,748 Avg Close $40.87 Range $34.90 - $48.23

Q3 2016

Shares 130,571 Value ($000) $7,635 Avg Close $33.13 Range $28.62 - $40.10

Q2 2016

Shares 13,309 Value ($000) $629 Avg Close $28.61 Range $22.97 - $33.66

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	97,492	$5,707	$46.86	$37.47 - $56.00
Q2 2018	63,069	$4,882	$58.47	$52.75 - $64.87
Q1 2018	82,110	$7,576	$61.52	$53.81 - $73.88
Q4 2017	88,111	$7,008	$58.49	$52.57 - $64.05
Q3 2017	89,194	$7,706	$59.93	$53.45 - $65.37
Q2 2017	104,811	$9,286	$59.68	$54.65 - $64.49
Q1 2017	115,180	$9,506	$51.29	$46.27 - $57.21
Q4 2016	128,745	$8,748	$40.87	$34.90 - $48.23
Q3 2016	130,571	$7,635	$33.13	$28.62 - $40.10
Q2 2016	13,309	$629	$28.61	$22.97 - $33.66