Constellation Energy Corp (CEG) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-01

Constellation Energy Corp (CEG) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-01. 5 Form 8-K material event filings were reported by CEG in the last 90 days. InsiderAlpha tracks every CEG SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Constellation Energy Corp (CEG)

SIC classification	Electric Services (SIC 4911)
SEC CIK	0001868275

90-Day SEC Filing Activity

Form 4 filings (90d)	1
Form 8-K filings (90d)	5
Latest Form 4 filing	2026-07-01

Recent CEG Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-03-01	Koehler Michael	EVP & Chief Admin Officer	M — Option exercise	19.4K	—	—	SEC
2026-03-01	Koehler Michael	EVP & Chief Admin Officer	F — Tax withholding / forfeiture	7.7K	$329.88	$2.53M	SEC
2026-02-09	Dardis David O.	EVP & General Counsel	D — Derivative transaction	13.4K	$272.15	$3.66M	SEC
2026-02-09	Hanson Bryan Craig	EVP & Chief Generation Officer	D — Derivative transaction	26.6K	$272.15	$7.24M	SEC
2026-02-09	Dardis David O.	EVP & General Counsel	F — Tax withholding / forfeiture	14.7K	$272.15	$4.00M	SEC
2026-02-09	Dominguez Joseph	President & CEO	D — Derivative transaction	93.0K	$272.15	$25.31M	SEC
2026-02-09	Koehler Michael	EVP & Chief Admin Officer	F — Tax withholding / forfeiture	9.2K	$272.15	$2.50M	SEC
2026-02-09	Hanson Bryan Craig	EVP & Chief Generation Officer	F — Tax withholding / forfeiture	22.2K	$272.15	$6.03M	SEC
2026-02-09	Dardis David O.	EVP & General Counsel	M — Option exercise	31.0K	—	—	SEC
2026-02-09	Koehler Michael	EVP & Chief Admin Officer	D — Derivative transaction	12.9K	$272.15	$3.52M	SEC
2026-02-09	Dominguez Joseph	President & CEO	M — Option exercise	191.8K	—	—	SEC
2026-02-09	Hanson Bryan Craig	EVP & Chief Generation Officer	M — Option exercise	53.5K	—	—	SEC
2026-02-09	Dominguez Joseph	President & CEO	F — Tax withholding / forfeiture	83.1K	$272.15	$22.62M	SEC
2026-02-09	Koehler Michael	EVP & Chief Admin Officer	M — Option exercise	24.6K	—	—	SEC
2026-02-09	Smith Shane Patrick	EVP & Chief Financial Officer	M — Option exercise	5.2K	—	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Constellation Energy Corp (CEG). Updated in real time as new filings are submitted to the SEC.

Most-Active CEG Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Harrington Charles L.	1	$36K

Recent CEG Form 8-K Material Events

2026-07-14 — Item 8.01 [SEC]
2026-06-02 — Item 8.01, 9.01 [SEC]
2026-05-11 — Item 2.02, 7.01, 9.01 [SEC]
2026-05-01 — Item 5.07 [SEC]
2026-04-17 — Item 8.01, 9.01 · Acquisition · neutral [SEC]
Constellation Energy Corporation completed its previously announced merger with Calpine Corporation on January 7, 2026, converting Calpine into a limited liability company and making it an indirect wholly-owned subsidiary of Constellation. This 8-K/A is an amendment filing to cor

Recent Insider Filings

2026-07-01 — Harrington Charles L. (Insider)
2026-04-02 — Harrington Charles L. (Insider)
2026-03-02 — Koehler Michael (EVP & Chief Admin Officer)
2026-02-11 — Dominguez Joseph (President & CEO)
2026-02-11 — Hanson Bryan Craig (EVP & Chief Generation Officer)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CEG insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

CEG Insider Trading — FAQ

What is the latest insider trade for CEG?: Constellation Energy Corp (CEG) had 1 insider filings in the last 90 days, with the most recent on 2026-07-01. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying CEG stock?: 0 insider purchases of CEG were filed in the last 90 days.
How many insiders are selling CEG stock?: 0 insider sales of CEG were filed in the last 90 days.
Where can I see CEG SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every CEG SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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