DOSSIER · 13F Holders · Q3 2026

AMPHENOL CORP NEW

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

CUSIP 032095901·8 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$165M
visible holders
Holders
8
filers reporting
Concentration
67.64%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

8 institutions reported AMPHENOL CORP NEW in Q3 2026. IMC-Chicago, LLC leads at 67.6% 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
$112M1.3M0.02%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$32M382K0.02%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$19M228K0.03%Q3 2026
04
Baer Investment Advisory LLC
CIK 0002057153
$2M6541.31%Q3 2026
05
HRT FINANCIAL LP
CIK 0001475597
$310K2K0.00%Q4 2025
06
JPMORGAN CHASE & CO
CIK 0000019617
$83K5000.00%Q2 2026
07
OSAIC HOLDINGS, INC.
CIK 0001677044
$19K20.00%Q2 2026
08
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025