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WILLIAM JOHN SEMPOLINSKI

Position in ARM — Arm Holdings PLC /Uk

CIK 2149024 EASTON, MA

Position in ARM

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$638,935
New position
Shares Held
1,802
first reported quarter
Ownership
0.000%
of shares outstanding
% of Portfolio
0.41%
of 13F equity value
Holder Rank
#557
of 955 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority Sole 0% Shared 0% None 100%

Position in Semiconductors

Technology · as of Jun 30, 2026

WILLIAM JOHN SEMPOLINSKI holds $55,547,307 across 7 Semiconductors names. ARM ranks #6 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 ARM
Arm Holdings PLC /Uk
This page
1,802 $638,935

All Filings in ARM

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-06-30 $638,935 1,802