WESTERN DIGITAL CORP

Ticker: WDC CUSIP: 958102105 Class: EQTY

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 382,210 Value ($000) $65,843 Avg Close $151.55 Range $112.43 - $188.77

Q3 2025

Shares 324,763 Value ($000) $38,991 Avg Close $81.60 Range $62.82 - $122.49

Q2 2025

Shares 35,955 Value ($000) $2,301 Avg Close $47.46 Range $28.72 - $64.21

Q1 2025

Shares 1,258,900 Value ($000) $50,897 Avg Close $47.25 Range $38.95 - $54.41

Q2 2024

Shares 136,000 Value ($000) $10,305 Avg Close $55.25 Range $49.12 - $61.40

Q1 2024

Shares 1,071,600 Value ($000) $73,126 Avg Close $43.62 Range $36.87 - $52.17

Q4 2023

Shares 90,073 Value ($000) $4,717 Avg Close $34.87 Range $26.82 - $40.07

Q3 2023

Shares 323,600 Value ($000) $14,766 Avg Close $31.42 Range $27.45 - $35.31

Q2 2023

Shares 310,933 Value ($000) $11,794 Avg Close $27.71 Range $24.07 - $31.23

Q3 2022

Shares 400,000 Value ($000) $13,020 Avg Close $33.07 Range $23.76 - $38.36

Q2 2022

Shares 3,010 Value ($000) $135 Avg Close $40.01 Range $32.99 - $47.63

Q1 2022

Shares 138,560 Value ($000) $6,879 Avg Close $40.89 Range $33.02 - $52.23

Q4 2021

Shares 10 Value ($000) $0 Avg Close $43.29 Range $37.27 - $50.63

Q3 2021

Shares 21 Value ($000) $1 Avg Close $47.33 Range $41.77 - $54.33

Q2 2021

Shares 21 Value ($000) $1 Avg Close $53.87 Range $48.26 - $58.87

Q1 2021

Shares 12,565 Value ($000) $839 Avg Close $46.58 Range $36.61 - $54.95

Q4 2020

Shares 12,619 Value ($000) $699 Avg Close $33.07 Range $26.57 - $42.13

Q3 2020

Shares 21,545 Value ($000) $787 Avg Close $29.61 Range $25.25 - $35.68

Q2 2020

Shares 80,135 Value ($000) $3,538 Avg Close $32.27 Range $28.18 - $37.56

Q1 2020

Shares 202,035 Value ($000) $8,409 Avg Close $43.55 Range $20.36 - $53.51

Q4 2019

Shares 183,651 Value ($000) $11,657 Avg Close $40.69 Range $34.40 - $46.90

Q3 2019

Shares 154,211 Value ($000) $9,197 Avg Close $41.27 Range $34.56 - $47.73

Q2 2019

Shares 675,431 Value ($000) $32,117 Avg Close $32.78 Range $25.73 - $40.13

Q1 2019

Shares 759,166 Value ($000) $36,486 Avg Close $32.38 Range $25.03 - $38.16

Q4 2018

Shares 886,018 Value ($000) $32,753 Avg Close $33.07 Range $23.85 - $41.99

Q3 2018

Shares 726,270 Value ($000) $42,516 Avg Close $46.86 Range $37.47 - $56.00

Q2 2018

Shares 519,314 Value ($000) $40,200 Avg Close $58.47 Range $52.75 - $64.87

Q1 2018

Shares 1,062,807 Value ($000) $98,065 Avg Close $61.52 Range $53.81 - $73.88

Q4 2017

Shares 663,995 Value ($000) $52,808 Avg Close $58.49 Range $52.57 - $64.05

Q3 2017

Shares 758,853 Value ($000) $65,565 Avg Close $59.93 Range $53.45 - $65.37

Q2 2017

Shares 674,995 Value ($000) $59,805 Avg Close $59.68 Range $54.65 - $64.49

Q1 2017

Shares 323,378 Value ($000) $26,688 Avg Close $51.29 Range $46.27 - $57.21

Q4 2016

Shares 388,595 Value ($000) $26,405 Avg Close $40.87 Range $34.90 - $48.23

Q3 2016

Shares 125,711 Value ($000) $7,350 Avg Close $33.13 Range $28.62 - $40.10

Q2 2016

Shares 391,996 Value ($000) $18,526 Avg Close $28.61 Range $22.97 - $33.66

Q1 2016

Shares 540,297 Value ($000) $25,524 Avg Close $30.76 Range $25.11 - $39.62

Q4 2015

Shares 204,297 Value ($000) $12,268 Avg Close $43.55 Range $37.34 - $55.67

Q3 2015

Shares 629,397 Value ($000) $49,999 Avg Close $50.91 Range $43.42 - $56.60

Q2 2015

Shares 756,178 Value ($000) $59,299 Avg Close $60.27 Range $50.11 - $64.90

Q1 2015

Shares 797,678 Value ($000) $72,597 Avg Close $65.44 Range $57.41 - $72.02

Q4 2014

Shares 589,401 Value ($000) $65,247 Avg Close $62.96 Range $52.21 - $72.28

Q3 2014

Shares 464,711 Value ($000) $45,226 Avg Close $62.41 Range $58.43 - $64.97

Q2 2014

Shares 696,726 Value ($000) $64,308 Avg Close $55.43 Range $50.48 - $59.36

Q1 2014

Shares 594,952 Value ($000) $54,628 Avg Close $53.80 Range $50.34 - $57.78

Q4 2013

Shares 696,551 Value ($000) $58,441 Avg Close $45.88 Range $38.72 - $52.56

Q3 2013

Shares 987,692 Value ($000) $62,620 Avg Close $40.38 Range $36.69 - $43.65

Q2 2013

Shares 1,037,222 Value ($000) $64,401 Avg Close $35.69 Range $30.03 - $40.17

Q1 2013

Shares 710,945 Value ($000) $35,753 Avg Close $28.85 Range $25.49 - $31.23

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	382,210	$65,843	$151.55	$112.43 - $188.77
Q3 2025	324,763	$38,991	$81.60	$62.82 - $122.49
Q2 2025	35,955	$2,301	$47.46	$28.72 - $64.21
Q1 2025	1,258,900	$50,897	$47.25	$38.95 - $54.41
Q2 2024	136,000	$10,305	$55.25	$49.12 - $61.40
Q1 2024	1,071,600	$73,126	$43.62	$36.87 - $52.17
Q4 2023	90,073	$4,717	$34.87	$26.82 - $40.07
Q3 2023	323,600	$14,766	$31.42	$27.45 - $35.31
Q2 2023	310,933	$11,794	$27.71	$24.07 - $31.23
Q3 2022	400,000	$13,020	$33.07	$23.76 - $38.36
Q2 2022	3,010	$135	$40.01	$32.99 - $47.63
Q1 2022	138,560	$6,879	$40.89	$33.02 - $52.23
Q4 2021	10	$0	$43.29	$37.27 - $50.63
Q3 2021	21	$1	$47.33	$41.77 - $54.33
Q2 2021	21	$1	$53.87	$48.26 - $58.87
Q1 2021	12,565	$839	$46.58	$36.61 - $54.95
Q4 2020	12,619	$699	$33.07	$26.57 - $42.13
Q3 2020	21,545	$787	$29.61	$25.25 - $35.68
Q2 2020	80,135	$3,538	$32.27	$28.18 - $37.56
Q1 2020	202,035	$8,409	$43.55	$20.36 - $53.51
Q4 2019	183,651	$11,657	$40.69	$34.40 - $46.90
Q3 2019	154,211	$9,197	$41.27	$34.56 - $47.73
Q2 2019	675,431	$32,117	$32.78	$25.73 - $40.13
Q1 2019	759,166	$36,486	$32.38	$25.03 - $38.16
Q4 2018	886,018	$32,753	$33.07	$23.85 - $41.99
Q3 2018	726,270	$42,516	$46.86	$37.47 - $56.00
Q2 2018	519,314	$40,200	$58.47	$52.75 - $64.87
Q1 2018	1,062,807	$98,065	$61.52	$53.81 - $73.88
Q4 2017	663,995	$52,808	$58.49	$52.57 - $64.05
Q3 2017	758,853	$65,565	$59.93	$53.45 - $65.37
Q2 2017	674,995	$59,805	$59.68	$54.65 - $64.49
Q1 2017	323,378	$26,688	$51.29	$46.27 - $57.21
Q4 2016	388,595	$26,405	$40.87	$34.90 - $48.23
Q3 2016	125,711	$7,350	$33.13	$28.62 - $40.10
Q2 2016	391,996	$18,526	$28.61	$22.97 - $33.66
Q1 2016	540,297	$25,524	$30.76	$25.11 - $39.62
Q4 2015	204,297	$12,268	$43.55	$37.34 - $55.67
Q3 2015	629,397	$49,999	$50.91	$43.42 - $56.60
Q2 2015	756,178	$59,299	$60.27	$50.11 - $64.90
Q1 2015	797,678	$72,597	$65.44	$57.41 - $72.02
Q4 2014	589,401	$65,247	$62.96	$52.21 - $72.28
Q3 2014	464,711	$45,226	$62.41	$58.43 - $64.97
Q2 2014	696,726	$64,308	$55.43	$50.48 - $59.36
Q1 2014	594,952	$54,628	$53.80	$50.34 - $57.78
Q4 2013	696,551	$58,441	$45.88	$38.72 - $52.56
Q3 2013	987,692	$62,620	$40.38	$36.69 - $43.65
Q2 2013	1,037,222	$64,401	$35.69	$30.03 - $40.17
Q1 2013	710,945	$35,753	$28.85	$25.49 - $31.23