DOSSIER · 13F Holders · Q3 2026

AMETEK INC NEW

4 institutions still hold AMETEK INC NEW as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 031100950·4 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$9M
visible holders
Holders
4
filers reporting
Concentration
73.68%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

4 institutions reported AMETEK INC NEW in Q3 2026. IMC-Chicago, LLC leads at 73.7% 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
$7M28K0.00%Q3 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$2M9K0.00%Q3 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$198K8000.00%Q3 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025