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WILLIAM JOHN SEMPOLINSKI

Position in GH — Guardant Health, Inc.

CIK 2149024 EASTON, MA

Position in GH

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$427,585
New position
Shares Held
2,850
first reported quarter
Ownership
0.002%
of shares outstanding
% of Portfolio
0.27%
of 13F equity value
Holder Rank
#382
of 594 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority Sole 0% Shared 0% None 100%

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

WILLIAM JOHN SEMPOLINSKI holds $915,715 across 2 Diagnostics & Research names. GH ranks #2 (46.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 GH
Guardant Health, Inc.
This page
2,850 $427,585

All Filings in GH

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-06-30 $427,585 2,850