DOSSIER · 13F Holders · Q3 2026

AUTOMATIC DATA PROCESSING IN

6 institutions still hold AUTOMATIC DATA PROCESSING IN as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 053015953·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$60M
visible holders
Holders
6
filers reporting
Concentration
65.98%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported AUTOMATIC DATA PROCESSING IN in Q3 2026. IMC-Chicago, LLC leads at 66.0% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$39M153K0.01%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$7M27K0.00%Q3 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$7M30K0.00%Q2 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$7M30K0.01%Q2 2026
05
GUARDIAN CAPITAL LP
CIK 0001224324
$64K3K0.00%Q2 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025