Skip to main content

CSS LLC

SEC CIK
0001103646
Latest filing
Aug 14, 2026

WDC holding history

Western Digital Corp in every 13F filed by CSS LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

WDC overviewAll 13F holders of WDCFull Q2 2026 holdings

Shares (Q2 2026)
24,933
Value
$15.9M
% of portfolio
0.7%
Quarters held
10
Since Q2 2022
Holdings of WDC by CSS LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202624,933$15.9M0.7%−500−2.0%ReducedHolders
Q1 202625,433$6.88M0.4%−14,390−36.1%ReducedHolders
Q4 202539,823$6.86M0.4%+1,070+2.8%AddedHolders
Q3 202538,753$4.65M0.3%+25,273+187.5%AddedHolders
Q2 202513,480$862.6K0.1%−4,190−23.7%ReducedHolders
Q1 202517,670$714.4K<0.1%+15,550+733.5%AddedHolders
Q4 20242,120$126.4K<0.1%+2,120NewHolders
Q2 20240$00.0%−1,622−100.0%Sold outHolders
Q1 20241,622$110.7K<0.1%+1,622NewHolders
Q4 20220$00.0%−9,467−100.0%Sold outHolders
Q3 20229,467$308.0K<0.1%−500−5.0%ReducedHolders
Q2 20229,967$447.0K<0.1%+9,967NewHolders