WESTERN DIGITAL CORP

Ticker: WDC CUSIP: 958102105 Class: EQTY

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q4 2025

Shares 1,028 Value ($000) $177 Avg Close $151.55 Range $112.43 - $188.77

Q3 2025

Shares 599 Value ($000) $72 Avg Close $81.60 Range $62.82 - $122.49

Q2 2025

Shares 235 Value ($000) $15 Avg Close $47.46 Range $28.72 - $64.21

Q3 2024

Shares 698 Value ($000) $0 Avg Close $50.34 Range $39.73 - $60.52

Q2 2023

Shares 418 Value ($000) $0 Avg Close $27.71 Range $24.07 - $31.23

Q1 2023

Shares 2,625 Value ($000) $0 Avg Close $29.22 Range $23.31 - $34.06

Q4 2022

Shares 321 Value ($000) $0 Avg Close $26.28 Range $22.39 - $30.85

Q3 2022

Shares 423 Value ($000) $14 Avg Close $33.07 Range $23.76 - $38.36

Q2 2022

Shares 655 Value ($000) $29 Avg Close $40.01 Range $32.99 - $47.63

Q1 2022

Shares 128 Value ($000) $6 Avg Close $40.89 Range $33.02 - $52.23

Q4 2020

Shares 10,000 Value ($000) $554 Avg Close $33.07 Range $26.57 - $42.13

Q1 2020

Shares 5,000 Value ($000) $208 Avg Close $43.55 Range $20.36 - $53.51

Q4 2019

Shares 523,900 Value ($000) $33,252 Avg Close $40.69 Range $34.40 - $46.90

Q2 2018

Shares 4,000 Value ($000) $310 Avg Close $58.47 Range $52.75 - $64.87

Q4 2017

Shares 32,100 Value ($000) $2,553 Avg Close $58.49 Range $52.57 - $64.05

Q3 2017

Shares 20,700 Value ($000) $1,788 Avg Close $59.93 Range $53.45 - $65.37

Q2 2017

Shares 15,816 Value ($000) $1,401 Avg Close $59.68 Range $54.65 - $64.49

Q1 2017

Shares 25,982 Value ($000) $2,144 Avg Close $51.29 Range $46.27 - $57.21

Q4 2016

Shares 22,934 Value ($000) $1,558 Avg Close $40.87 Range $34.90 - $48.23

Q2 2016

Shares 26,621 Value ($000) $1,258 Avg Close $28.61 Range $22.97 - $33.66

Q2 2015

Shares 1,500 Value ($000) $118 Avg Close $60.27 Range $50.11 - $64.90

Q1 2015

Shares 100 Value ($000) $9 Avg Close $65.44 Range $57.41 - $72.02

Q4 2014

Shares 8,700 Value ($000) $963 Avg Close $62.96 Range $52.21 - $72.28

Q3 2014

Shares 9,000 Value ($000) $876 Avg Close $62.41 Range $58.43 - $64.97

Q2 2014

Shares 6,700 Value ($000) $618 Avg Close $55.43 Range $50.48 - $59.36

Q4 2013

Shares 4,500 Value ($000) $378 Avg Close $45.88 Range $38.72 - $52.56

Q3 2013

Shares 8,900 Value ($000) $564 Avg Close $40.38 Range $36.69 - $43.65

Q2 2013

Shares 100 Value ($000) $6 Avg Close $35.69 Range $30.03 - $40.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,028	$177	$151.55	$112.43 - $188.77
Q3 2025	599	$72	$81.60	$62.82 - $122.49
Q2 2025	235	$15	$47.46	$28.72 - $64.21
Q3 2024	698	$0	$50.34	$39.73 - $60.52
Q2 2023	418	$0	$27.71	$24.07 - $31.23
Q1 2023	2,625	$0	$29.22	$23.31 - $34.06
Q4 2022	321	$0	$26.28	$22.39 - $30.85
Q3 2022	423	$14	$33.07	$23.76 - $38.36
Q2 2022	655	$29	$40.01	$32.99 - $47.63
Q1 2022	128	$6	$40.89	$33.02 - $52.23
Q4 2020	10,000	$554	$33.07	$26.57 - $42.13
Q1 2020	5,000	$208	$43.55	$20.36 - $53.51
Q4 2019	523,900	$33,252	$40.69	$34.40 - $46.90
Q2 2018	4,000	$310	$58.47	$52.75 - $64.87
Q4 2017	32,100	$2,553	$58.49	$52.57 - $64.05
Q3 2017	20,700	$1,788	$59.93	$53.45 - $65.37
Q2 2017	15,816	$1,401	$59.68	$54.65 - $64.49
Q1 2017	25,982	$2,144	$51.29	$46.27 - $57.21
Q4 2016	22,934	$1,558	$40.87	$34.90 - $48.23
Q2 2016	26,621	$1,258	$28.61	$22.97 - $33.66
Q2 2015	1,500	$118	$60.27	$50.11 - $64.90
Q1 2015	100	$9	$65.44	$57.41 - $72.02
Q4 2014	8,700	$963	$62.96	$52.21 - $72.28
Q3 2014	9,000	$876	$62.41	$58.43 - $64.97
Q2 2014	6,700	$618	$55.43	$50.48 - $59.36
Q4 2013	4,500	$378	$45.88	$38.72 - $52.56
Q3 2013	8,900	$564	$40.38	$36.69 - $43.65
Q2 2013	100	$6	$35.69	$30.03 - $40.17