DOSSIER · 13F Holders · Q3 2026

AMETEK INC

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

CUSIP 031100900·7 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$87M
visible holders
Holders
7
filers reporting
Concentration
48.95%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

7 institutions reported AMETEK INC in Q3 2026. IMC-Chicago, LLC leads at 49.0% 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
$43M172K0.01%Q3 2026
02
Cartenna Capital, LP
CIK 0001808928
$24M100K0.58%Q2 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$12M48K0.00%Q3 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$6M25K0.00%Q3 2026
05
GROUP ONE TRADING LLC
CIK 0000932540
$2M8K0.00%Q3 2026
06
AlphaCore Capital LLC
CIK 0001713662
$49K520.00%Q3 2026
07
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025