WESTERN DIGITAL CORP

Ticker: WDC CUSIP: 958102105 Class: EQTY

VIKING GLOBAL INVESTORS LP's Holding History (CIK: 0001103804)

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

Q3 2022

Shares 7,400,746 Value ($000) $240,894 Avg Close $33.07 Range $23.76 - $38.36

Q2 2022

Shares 1,966,376 Value ($000) $88,153 Avg Close $40.01 Range $32.99 - $47.63

Q4 2021

Shares 1,311,029 Value ($000) $85,492 Avg Close $43.29 Range $37.27 - $50.63

Q1 2018

Shares 3,002,720 Value ($000) $277,061 Avg Close $61.52 Range $53.81 - $73.88

Q1 2017

Shares 1,713,613 Value ($000) $141,424 Avg Close $51.29 Range $46.27 - $57.21

Q4 2016

Shares 1,405,015 Value ($000) $95,471 Avg Close $40.87 Range $34.90 - $48.23

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2022	7,400,746	$240,894	$33.07	$23.76 - $38.36
Q2 2022	1,966,376	$88,153	$40.01	$32.99 - $47.63
Q4 2021	1,311,029	$85,492	$43.29	$37.27 - $50.63
Q1 2018	3,002,720	$277,061	$61.52	$53.81 - $73.88
Q1 2017	1,713,613	$141,424	$51.29	$46.27 - $57.21
Q4 2016	1,405,015	$95,471	$40.87	$34.90 - $48.23