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SIMPLEX TRADING, LLC

Position in ADP — Automatic Data Processing Inc

CIK 1488542 CHICAGO, IL

Position in ADP

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$528,674
+$356,978 QoQ
Shares Held
2,602
+185.6% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ADP Over Time

Shares Held

Position Value (USD)

Position in Software - Application

Technology · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $69,051,915 across 79 Software - Application names.

# Ticker Company Shares Value (USD) Open

All Filings in ADP

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $528,674 2,602
2021-03-31 $171,696 911
2020-12-31 $759,598 4,311
2020-03-31 $607,952 4,448