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William John Sempolinski

SEC CIK
0002149024
Latest filing
Aug 14, 2026

MU holding history

Micron Technology Inc in every 13F filed by William John Sempolinski, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MU overviewAll 13F holders of MUFull Q2 2026 holdings

Shares (Q2 2026)
830
Value
$958.1K
% of portfolio
0.4%
Quarters held
2
Since Q1 2026
Holdings of MU by William John Sempolinski, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026830$958.1K0.4%+70+9.2%AddedHolders
Q1 2026760$256.8K0.1%+760NewHolders