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Equibles

Calamos Advisors LLC

Position in WDC — Western Digital Corp

CIK 1316507 NAPERVILLE, IL
Back to WDC Full portfolio

Position in WDC

as of Jun 30, 2026 · filed Jul 31, 2026
Position Value
$30,479,079
+$17,003,268 QoQ
Shares Held
47,719
-4.2% QoQ
Ownership
0.013%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
#298
of 1,849 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in WDC Over Time

Shares Held

Position Value (USD)

Position in Computer Hardware

Technology · as of Jun 30, 2026

Calamos Advisors LLC holds $195,931,218 across 9 Computer Hardware names. WDC ranks #3 (15.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 SNDK
Sandisk Corp
 34,206 $77,775,208
2 ANET
Arista Networks, Inc.
 307,502 $52,238,439
3 WDC
Western Digital Corp
This page 		47,719 $30,479,079
4 STX
Seagate Technology Holdings plc
 27,448 $26,487,320
5 HPQ
Hp Inc
 238,068 $5,223,211
6 SMCI
Super Micro Computer, Inc.
 74,740 $2,192,124
7 P
Everpure, Inc.
 9,569 $753,941
8 OSS
One Stop Systems, Inc.
 31,973 $581,268

All Filings in WDC

Export CSV
13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $30,479,079 47,719
2026-03-31 $13,475,811 49,820
2022-09-30 $3,081,999 94,685
2022-06-30 $4,244,727 94,685
2022-03-31 $4,574,546 92,136
2021-12-31 $5,230,820 80,215
2021-09-30 $4,352,876 77,124
2021-06-30 $5,006,880 70,351
2021-03-31 $3,633,401 54,433
2020-12-31 $2,922,489 52,762
2020-09-30 $2,011,419 55,032
2020-06-30 $2,641,448 59,829
2020-03-31 $2,648,446 63,634