CONSTELLATION ENERGY CORP

DOSSIER · 13F Holders · Q2 2026

CONSTELLATION ENERGY CORP

7 institutions still hold CONSTELLATION ENERGY CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 21037T959·7 13F holders·last filed Jun 30, 2026

Market cap

—

13F value held

$299M

visible holders

Holders

7

filers reporting

Concentration

67.27%

IMC-Chicago, LLC #1

top holder share

AI Holders Summary · Q2 2026

7 institutions reported CONSTELLATION ENERGY CORP in Q2 2026. IMC-Chicago, LLC leads at 67.3% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(1 on this page)

#HolderValueShares% port.Quarter

01

IMC-Chicago, LLC

CIK 0001452861· Market maker

$201M810K0.05%Q2 2026 02

GROUP ONE TRADING LLC

CIK 0000932540

$41M164K0.06%Q2 2026 03

SIMPLEX TRADING, LLC

CIK 0001488542

$31M124K0.02%Q2 2026 04

JPMORGAN CHASE & CO

CIK 0000019617

$19M75K0.00%Q2 2026 05

HRT FINANCIAL LP

CIK 0001475597

$7M20K0.02%Q4 2025 06

Phoenix Financial Ltd.

CIK 0001679543

$23K91K0.00%Q2 2026 07

CONCOURSE FINANCIAL GROUP SECURITIES, INC.