WESTERN DIGITAL CORP

Ticker: WDC CUSIP: 958102105 Class: EQTY

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

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

Q4 2025
Shares 753,540 Value ($000) $129,812 Avg Close $151.55 Range $112.43 - $188.77
Q3 2025
Shares 965,070 Value ($000) $115,866 Avg Close $81.60 Range $62.82 - $122.49
Q2 2025
Shares 1,072,090 Value ($000) $68,603 Avg Close $47.46 Range $28.72 - $64.21
Q1 2025
Shares 1,121,555 Value ($000) $45,344 Avg Close $47.25 Range $38.95 - $54.41
Q4 2024
Shares 1,158,615 Value ($000) $69,088 Avg Close $50.08 Range $44.29 - $55.80
Q3 2024
Shares 1,161,435 Value ($000) $79,314 Avg Close $50.34 Range $39.73 - $60.52
Q2 2024
Shares 1,196,125 Value ($000) $90,630 Avg Close $55.25 Range $49.12 - $61.40
Q1 2024
Shares 1,275,888 Value ($000) $87,067 Avg Close $43.62 Range $36.87 - $52.17
Q4 2023
Shares 1,542,608 Value ($000) $80,786 Avg Close $34.87 Range $26.82 - $40.07
Q3 2023
Shares 2,279,369 Value ($000) $104,008 Avg Close $31.42 Range $27.45 - $35.31
Q2 2023
Shares 2,286,976 Value ($000) $86,745 Avg Close $27.71 Range $24.07 - $31.23
Q1 2023
Shares 2,415,076 Value ($000) $90,976 Avg Close $29.22 Range $23.31 - $34.06
Q4 2022
Shares 2,693,604 Value ($000) $84,983 Avg Close $26.28 Range $22.39 - $30.85
Q3 2022
Shares 2,623,454 Value ($000) $85,393 Avg Close $33.07 Range $23.76 - $38.36
Q2 2022
Shares 2,291,579 Value ($000) $102,731 Avg Close $40.01 Range $32.99 - $47.63
Q1 2022
Shares 2,059,610 Value ($000) $102,260 Avg Close $40.89 Range $33.02 - $52.23
Q4 2021
Shares 2,009,947 Value ($000) $131,069 Avg Close $43.29 Range $37.27 - $50.63
Q3 2021
Shares 1,797,667 Value ($000) $101,460 Avg Close $47.33 Range $41.77 - $54.33
Q2 2021
Shares 1,579,427 Value ($000) $112,408 Avg Close $53.87 Range $48.26 - $58.87
Q1 2021
Shares 1,587,487 Value ($000) $105,965 Avg Close $46.58 Range $36.61 - $54.95
Q4 2020
Shares 1,566,307 Value ($000) $86,758 Avg Close $33.07 Range $26.57 - $42.13
Q3 2020
Shares 1,308,807 Value ($000) $47,837 Avg Close $29.61 Range $25.25 - $35.68
Q2 2020
Shares 591,907 Value ($000) $26,133 Avg Close $32.27 Range $28.18 - $37.56
Q1 2020
Shares 487,137 Value ($000) $20,275 Avg Close $43.55 Range $20.36 - $53.51
Q4 2019
Shares 847,086 Value ($000) $53,765 Avg Close $40.69 Range $34.40 - $46.90
Q3 2019
Shares 843,772 Value ($000) $50,323 Avg Close $41.27 Range $34.56 - $47.73
Q2 2019
Shares 1,044,636 Value ($000) $49,672 Avg Close $32.78 Range $25.73 - $40.13
Q1 2019
Shares 746,380 Value ($000) $35,871 Avg Close $32.38 Range $25.03 - $38.16
Q4 2018
Shares 524,330 Value ($000) $19,384 Avg Close $33.07 Range $23.85 - $41.99
Q3 2018
Shares 674,513 Value ($000) $39,486 Avg Close $46.86 Range $37.47 - $56.00
Q2 2018
Shares 721,926 Value ($000) $55,884 Avg Close $58.47 Range $52.75 - $64.87
Q1 2018
Shares 728,569 Value ($000) $67,225 Avg Close $61.52 Range $53.81 - $73.88
Q4 2017
Shares 872,706 Value ($000) $69,406 Avg Close $58.49 Range $52.57 - $64.05
Q3 2017
Shares 1,069,843 Value ($000) $92,434 Avg Close $59.93 Range $53.45 - $65.37
Q2 2017
Shares 1,124,096 Value ($000) $99,595 Avg Close $59.68 Range $54.65 - $64.49
Q1 2017
Shares 1,134,784 Value ($000) $93,654 Avg Close $51.29 Range $46.27 - $57.21
Q4 2016
Shares 1,145,171 Value ($000) $77,814 Avg Close $40.87 Range $34.90 - $48.23
Q3 2016
Shares 1,177,828 Value ($000) $68,868 Avg Close $33.13 Range $28.62 - $40.10
Q2 2016
Shares 1,292,824 Value ($000) $61,099 Avg Close $28.61 Range $22.97 - $33.66