Primecap Management’s Western Digital WDC Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$330M Sell
516,440
-60,770
-11% -$29.5M 0.2% 92
2026
Q1
$156M Sell
577,210
-176,330
-23% -$46M 0.12% 125
2025
Q4
$130M Sell
753,540
-211,530
-22% -$32.1M 0.1% 133
2025
Q3
$116M Sell
965,070
-107,020
-10% -$8.75M 0.09% 142
2025
Q2
$68.6M Sell
1,072,090
-49,465
-4% -$2.35M 0.05% 174
2025
Q1
$45.3M Sell
1,121,555
-411,293
-27% -$19.5M 0.04% 187
2024
Q4
$69.1M Sell
1,532,848
-3,731
-0.2% -$188K 0.05% 160
2024
Q3
$79.3M Sell
1,536,579
-45,894
-3% -$2.32M 0.06% 154
2024
Q2
$90.6M Sell
1,582,473
-105,527
-6% -$5.85M 0.07% 146
2024
Q1
$87.1M Sell
1,688,000
-352,870
-17% -$15.5M 0.06% 150
2023
Q4
$80.8M Sell
2,040,870
-974,735
-32% -$34.1M 0.06% 152
2023
Q3
$104M Sell
3,015,605
-10,064
-0.3% -$317K 0.09% 128
2023
Q2
$86.7M Sell
3,025,669
-169,477
-5% -$4.71M 0.07% 146
2023
Q1
$91M Sell
3,195,146
-368,492
-10% -$10.8M 0.08% 144
2022
Q4
$85M Buy
3,563,638
+92,808
+3% +$2.45M 0.08% 147
2022
Q3
$85.4M Buy
3,470,830
+439,071
+14% +$14.6M 0.08% 148
2022
Q2
$103M Buy
3,031,759
+306,895
+11% +$12.3M 0.09% 138
2022
Q1
$102M Buy
2,724,864
+65,704
+2% +$2.7M 0.08% 155
2021
Q4
$131M Buy
2,659,160
+280,847
+12% +$12.2M 0.09% 142
2021
Q3
$101M Buy
2,378,313
+288,731
+14% +$13.7M 0.07% 152
2021
Q2
$112M Sell
2,089,582
-10,663
-0.5% -$577K 0.08% 153
2021
Q1
$106M Buy
2,100,245
+28,021
+1% +$1.31M 0.07% 151
2020
Q4
$86.8M Buy
2,072,224
+340,672
+20% +$11.3M 0.06% 157
2020
Q3
$47.8M Buy
1,731,552
+948,459
+121% +$28.2M 0.04% 169
2020
Q2
$26.1M Buy
783,093
+138,611
+22% +$4.49M 0.02% 198
2020
Q1
$20.3M Sell
644,482
-476,213
-42% -$21.1M 0.02% 192
2019
Q4
$53.8M Buy
1,120,695
+4,385
+0.4% +$183K 0.04% 171
2019
Q3
$50.3M Sell
1,116,310
-265,743
-19% -$11.3M 0.04% 169
2019
Q2
$49.7M Buy
1,382,053
+394,592
+40% +$13.5M 0.04% 179
2019
Q1
$35.9M Buy
987,461
+293,772
+42% +$10.1M 0.03% 195
2018
Q4
$19.4M Sell
693,689
-198,692
-22% -$7.04M 0.02% 210
2018
Q3
$39.5M Sell
892,381
-62,727
-7% -$3.18M 0.03% 196
2018
Q2
$55.9M Sell
955,108
-8,789
-0.9% -$559K 0.04% 173
2018
Q1
$67.2M Sell
963,897
-190,693
-17% -$12.8M 0.05% 160
2017
Q4
$69.4M Sell
1,154,590
-260,812
-18% -$16.8M 0.05% 159
2017
Q3
$92.4M Sell
1,415,402
-71,777
-5% -$4.76M 0.08% 149
2017
Q2
$99.6M Sell
1,487,179
-14,140
-0.9% -$939K 0.09% 142
2017
Q1
$93.7M Sell
1,501,319
-13,742
-0.9% -$789K 0.09% 137
2016
Q4
$77.8M Sell
1,515,061
-43,205
-3% -$1.99M 0.08% 137
2016
Q3
$68.9M Sell
1,558,266
-152,140
-9% -$5.73M 0.07% 145
2016
Q2
$61.1M Buy
+1,710,406
New +$56.3M 0.07% 151

Other funds holding WDC

Primecap Management's WDC Position: Q2 2026 in Review

Primecap Management reduced its Western Digital (WDC) stake by 11% in Q2 2026, selling an estimated $29.5M and leaving 516,440 shares worth $330M. The position accounts for 0.2% of the portfolio, ranked #92.

Primecap Management first reported a position in WDC in Q2 2016 and has held it in 41 quarters since. 1,835 funds tracked by Wall St. Rank hold WDC as of Q2 2026.

  • Primecap Management held 516,440 shares of Western Digital worth $330M as of Q2 2026.
  • Primecap Management sold 60,770 Western Digital shares in Q2 2026, an estimated $29.5M.
  • Western Digital made up 0.2% of Primecap Management's portfolio in Q2 2026, its #92 holding.
  • Primecap Management first reported a position in Western Digital in Q2 2016 and has held it in 41 quarters since.
  • 1,835 funds tracked by Wall St. Rank held Western Digital as of Q2 2026.

Based on Primecap Management's 13F filing for Q2 2026, filed 14 Aug 2026.