Cubist Systematic Strategies, LLC Western Digital Corp Transaction History

Cubist Systematic Strategies, LLC

$19.3 Billion
Q3 2025

A detailed history of Cubist Systematic Strategies, LLC transactions in Western Digital Corp stock. As of the latest transaction made, Cubist Systematic Strategies, LLC holds 222,048 shares of WDC stock, worth $35 Million. This represents 0.14% of its overall portfolio holdings.

Number of Shares

222,048

Previous 156,557 41.83%

Holding current value

$35 Million

Previous $10 Million 166.11%

% of portfolio

0.14%

Previous 0.05%

28 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$63.84 - $120.06 $4.18 Million - $7.86 Million	65,491 Added 41.83%	222,048 $26.7 Million
Q2 2025 Aug 14, 2025	BUY	$30.54 - $63.99 $4.78 Million - $10 Million	156,557 New	156,557 $10 Million
Q1 2024 May 15, 2024	SELL	$49.43 - $68.24 $9.95 Million - $13.7 Million	-201,299 Reduced 81.58%	45,445 $3.1 Million
Q4 2023 Feb 14, 2024	BUY	$38.26 - $52.93 $9.44 Million - $13.1 Million	246,744 New	246,744 $12.9 Million
Q2 2023 Aug 14, 2023	SELL	$32.09 - $41.08 $5.54 Million - $7.09 Million	-172,484 Reduced 47.6%	189,848 $7.2 Million

Q1 2023 May 15, 2023	SELL	$31.41 - $44.97 $414,046 - $592,794	-13,182 Reduced 3.51%	362,332 $13.6 Million
Q4 2022 Feb 14, 2023	BUY	$30.21 - $39.75 $7.65 Million - $10.1 Million	253,390 Added 207.49%	375,514 $11.8 Million
Q3 2022 Nov 14, 2022	BUY	$32.18 - $50.67 $2.69 Million - $4.24 Million	83,624 Added 217.21%	122,124 $3.98 Million
Q2 2022 Aug 15, 2022	BUY	$44.83 - $62.86 $665,770 - $933,533	14,851 Added 62.8%	38,500 $1.73 Million
Q1 2022 May 16, 2022	SELL	$44.47 - $67.62 $867,120 - $1.32 Million	-19,499 Reduced 45.19%	23,649 $1.17 Million
Q4 2021 Feb 14, 2022	BUY	$52.29 - $66.13 $630,094 - $796,866	12,050 Added 38.75%	43,148 $2.81 Million
Q3 2021 Nov 15, 2021	BUY	$55.47 - $70.89 $239,685 - $306,315	4,321 Added 16.14%	31,098 $1.76 Million
Q2 2021 Aug 16, 2021	SELL	$64.38 - $77.17 $719,768 - $862,760	-11,180 Reduced 29.45%	26,777 $1.91 Million
Q1 2021 May 17, 2021	SELL	$49.47 - $72.21 $1.37 Million - $2.01 Million	-27,769 Reduced 42.25%	37,957 $2.53 Million
Q4 2020 Feb 16, 2021	SELL	$35.96 - $55.39 $537,386 - $827,748	-14,944 Reduced 18.52%	65,726 $3.64 Million
Q3 2020 Nov 16, 2020	SELL	$33.71 - $46.16 $10.7 Million - $14.6 Million	-316,974 Reduced 79.71%	80,670 $2.95 Million
Q2 2020 Aug 14, 2020	BUY	$37.83 - $48.53 $13.7 Million - $17.5 Million	361,622 Added 1003.89%	397,644 $17.6 Million
Q1 2020 May 15, 2020	BUY	$29.19 - $70.93 $920,127 - $2.24 Million	31,522 Added 700.49%	36,022 $1.5 Million
Q4 2019 Feb 14, 2020	SELL	$47.39 - $63.47 $145,297 - $194,599	-3,066 Reduced 40.52%	4,500 $286,000
Q3 2019 Nov 14, 2019	BUY	$47.94 - $64.7 $362,714 - $489,520	7,566 New	7,566 $451,000
Q2 2019 Aug 14, 2019	SELL	$36.24 - $55.39 $428,356 - $654,709	-11,820 Closed	0 $0
Q1 2019 May 15, 2019	SELL	$35.65 - $52.61 $5.44 Million - $8.03 Million	-152,596 Reduced 92.81%	11,820 $568,000
Q4 2018 Feb 14, 2019	BUY	$35.06 - $58.36 $5.48 Million - $9.12 Million	156,333 Added 1934.1%	164,416 $6.08 Million
Q3 2018 Nov 14, 2018	BUY	$54.98 - $80.08 $273,085 - $397,757	4,967 Added 159.4%	8,083 $473,000
Q2 2018 Aug 14, 2018	SELL	$76.77 - $92.51 $2.24 Million - $2.7 Million	-29,222 Reduced 90.36%	3,116 $241,000
Q1 2018 May 15, 2018	SELL	$80.09 - $106.45 $2.1 Million - $2.79 Million	-26,188 Reduced 44.75%	32,338 $2.98 Million
Q4 2017 Feb 14, 2018	BUY	$77.11 - $92.91 $1.25 Million - $1.51 Million	16,210 Added 38.31%	58,526 $4.66 Million
Q3 2017 Nov 14, 2017	BUY	$79.19 - $90.56 $3.35 Million - $3.83 Million	42,316	42,316 $3.66 Million

Others Institutions Holding WDC

# of Institutions

1,129

Shares Held

313M

Call Options Held

18.4M

Put Options Held

22.1M

View Full List

About WESTERN DIGITAL CORP

Ticker WDC
Exchange NASDAQ
Sector Technology
Industry Computer Hardware
Shares Outstandng 317,555,008
Market Cap $50.1B
Description
Western Digital Corporation develops, manufactures, and sells data storage devices and solutions in the United States, China, Hong Kong, Europe, the Middle East, Africa, rest of Asia, and internationally. It offers client devices, including hard disk drives (HDDs) and solid state drives (SSDs) for computing devices, such as desktop and notebook ...

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Cubist Systematic Strategies, LLC Western Digital Corp Transaction History