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D. E. Shaw & Co., Inc.

Position in WDC — Western Digital Corp

CIK 1009207 New York, NY

Position in WDC

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$727,139,332
-$255,026,718 QoQ
Shares Held
2,688,230
-52.8% QoQ
Ownership
0.780%
of shares outstanding
% of Portfolio
0.64%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 99.40481283223534.ToString("F0")% Shared 0.ToString("F0")% None 0.595187167764663.ToString("F0")%

Common Shares in WDC Over Time

Shares Held

Position Value (USD)

Derivatives in WDC

reported options exposure · as of Mar 31, 2026
CallValue
$32,269,457
CallShares
119,300
PutValue
$304,355,348
PutShares
1,125,200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Computer Hardware

Technology · as of Mar 31, 2026

D. E. Shaw & Co., Inc. holds $2,509,565,439 across 17 Computer Hardware names. WDC ranks #2 (29.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 WDC
Western Digital Corp
This page
2,688,230 $727,139,332

All Filings in WDC

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $727,139,332 2,688,230
2026-03-31 $32,269,457 119,300
2026-03-31 $304,355,348 1,125,200
2025-12-31 $982,166,050 5,701,318
2025-12-31 $62,241,151 361,300
2025-12-31 $143,328,640 832,000
2025-09-30 $1,155,615,438 9,625,316
2025-09-30 $53,882,928 448,800
2025-09-30 $34,817,400 290,000
2025-06-30 $13,911,426 217,400
2025-06-30 $11,166,255 174,500
2025-06-30 $186,029,232 2,907,161
2025-03-31 $13,891,748 343,600
2025-03-31 $1,184,719 29,303
2025-03-31 $9,015,890 223,000
2024-12-31 $20,331,888 451,100
2024-12-31 $17,349,306 384,926
2024-12-31 $17,424,757 386,600
2024-09-30 $33,943,668 657,600
2024-09-30 $32,715,841 633,813
2024-09-30 $21,601,923 418,500
2024-06-30 $121,635,404 2,123,842
2024-06-30 $79,005,896 1,379,500
2024-06-30 $20,079,352 350,600
2024-03-31 $9,480,348 183,800
2024-03-31 $21,730,527 421,300
2024-03-31 $130,613,365 2,532,263
2023-12-31 $16,558,112 418,300
2023-12-31 $108,197,191 2,733,336
2023-12-31 $11,962,375 302,200
2023-09-30 $2,807,469 81,400
2023-09-30 $4,727,758 137,077
2023-09-30 $10,978,103 318,300
2023-06-30 $18,303,481 638,426
2023-06-30 $8,205,268 286,200
2023-06-30 $2,806,763 97,900
2023-03-31 $6,788,010 238,400
2023-03-31 $3,836,165 134,729
2023-03-31 $7,488,451 263,000
2022-12-31 $12,524,601 525,200
2022-12-31 $7,824,299 328,100
2022-12-31 $15,077,168 632,238
2022-09-30 $5,326,592 216,500
2022-09-30 $13,256,204 538,800
2022-09-30 $4,745,883 192,897
2022-06-30 $11,680,193 344,700
2022-06-30 $7,077,106 208,856
2022-06-30 $4,835,403 142,700
2022-03-31 $48,585,487 1,294,636
2022-03-31 $11,487,412 306,100