NASDAQ · Holders

Constellation Energy (CEG) Institutional Ownership & Insider Trading History

Q: Who are the largest CEG shareholders?

Blackrock Inc. is the largest reported institutional holder of CEG, with 24.56 million shares, or about 6.93% of shares outstanding.

Q: What does the institutional filing activity show for CEG?

Constellation Energy has 10 institutional rows on file. Previous position sizes are unavailable, so increases and reductions cannot be determined.

Q: What insider transactions are available for CEG?

TECHi shows 56 dated CEG insider transactions through Aug 11, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.

Q: Are CEG insiders buying or selling?

The displayed CEG activity reads Mixed, sale-heavy: 1 sale and 1 purchase. Other transaction types remain separate.

Q: Who is the most active reported CEG insider?

DOMINGUEZ JOSEPH has the largest absolute share movement in the displayed CEG filing rows, totaling 428,375 shares. The action labels provide the transaction context.

Top CEG institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.

Last confirmed price: $255.21-5.74%; Oct 22, 2026, 4:00 PM EDT · Prices may be delayed
Market cap · calculated: $90.42B; Jul 31, 2026 · Valuation and sources

Data dates

Prices as of Oct 22, 4:00 PM EDT · Fundamentals checked Oct 22, 3:51 PM EDT · Statement period ended Jun 30, 2026

Ownership read

CEG insider transaction activity: Mixed, sale-heavy.

Blackrock Inc. is the largest institutional holder. 1 classified sale and 1 classified purchase appear in the recent insider records. 18 transactions lack a reliable action code. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.

Review insider trades View institutions

Insider flow

CEG

Purchases1.50K

Sales4.00K

Directional bars ignore awards, gifts, conversions, and tax withholding rows.

Top holder

24.56M

Blackrock Inc.

Insider transaction activity

Mixed, sale-heavy

$1.24M sold / $417.93K bought · 18 unclassified

Observations shown

10 holder / 56 insider

Increased / initiated: Unavailable; Prior positions were not supplied

Insider rows: 56; Transaction dates shown per row

Ownership concentration and transaction activity

Top 10 reported holders: 40.11% outstanding
Changes with share-count history: Prior-position data unavailable
New / exited positions: Prior-position data unavailable
Largest increase with share-count history: Prior share counts unavailable

These changes cover the holders shown. A holder missing from this list may still own shares. Compare positions from the same reporting quarters.

Net shares sold: 2,500

Sale-code S shares minus purchase-code P shares in this sample. Includes disclosed plans and unknown plan status; excludes grants, gifts, exercises and withholding. This is activity, not sentiment.

Purchase / sale; plan unknown: 2
Grant: 35
Other / unclassified: 18
Gift: 1

Top 10 institutional holders

Constellation Energy (CEG) institutional ownership

Ranked by reported share count, with position changes and separate position and filing dates where ownership data supplies them.

Constellation Energy (CEG) institutional ownership
#	Institution	% held	Shares	Position / filing date
1	Blackrock Inc.	6.93%	24.56M	Position as of Jun 30, 2026Filing date unknown
2	Vanguard Capital Management LLC	5.94%	21.04M	Position as of Jun 30, 2026Filing date unknown
3	State Street Corporation	5.48%	19.41M	Position as of Jun 30, 2026Filing date unknown
4	Vanguard Portfolio Management LLC	4.47%	15.83M	Position as of Jun 30, 2026Filing date unknown
5	ECP ControlCo, LLC	4.06%	14.37M	Position as of Jun 30, 2026Filing date unknown
6	Capital International Investors	3.57%	12.66M	Position as of Jun 30, 2026Filing date unknown
7	Invesco Ltd.	3.14%	11.11M	Position as of Jun 30, 2026Filing date unknown
8	Morgan Stanley	2.55%	9.05M	Position as of Jun 30, 2026Filing date unknown
9	Geode Capital Management, LLC	2.12%	7.52M	Position as of Jun 30, 2026Filing date unknown
10	FMR, LLC	1.85%	6.54M	Position as of Jun 30, 2026Filing date unknown

Showing 10 of 10 matching institutional rows.

Recent insider transactions

Constellation Energy (CEG) Form 4 filings

Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding. Window: Dec 31, 2024–Aug 11, 2026 · 56 records.

Constellation Energy (CEG) Form 4 insider transactions
#	Insider	% company	Action	Shares	Price	Value	Transaction / filing
1	CRANDALL ROGER W Director	<0.01%	PurchaseOpen-market or direct purchase reported on Form 4. Transaction context Classification: Purchase / sale; plan unknown 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	1.50K	$278.62	$417,931	Aug 11, 2026Filing date unavailableOriginal filing link unavailable
2	CRANDALL ROGER W Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	462	$267.25	$123,470	Aug 4, 2026Filing date unavailableOriginal filing link unavailable
3	LAWLESS ROBERT J Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
4	DE BALMANN YVES C Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
5	HALVERSON BRADLEY M. Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
6	ASHISH KHANDPUR K Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
7	RIMMER NNEKA LOUISE Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
8	HOLZRICHTER JULIE Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
9	JAMIL DHIAA M Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
10	HARRINGTON CHARLES L Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
11	RICHARDSON JOHN M Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable
12	PATERSON EILEEN PATRICIA Director	<0.01%	Award / grantAward, grant, or acquisition under an equity compensation plan. Transaction context Classification: Grant 10b5-1: Not reported Holdings after: Not reported Position sold: Not calculable Filed: Not reported Position sold = shares sold ÷ (shares sold + holdings after). Separate accounts or security classes may not represent total beneficial ownership.	556	$305.71	$169,975	Apr 28, 2026Filing date unavailableOriginal filing link unavailable

Showing 12 of 56 matching Form 4 rows. Percent of company uses current shares outstanding.

Frequently asked

Questions about this quote

Who are the largest CEG shareholders?

Blackrock Inc. is the largest reported institutional holder of CEG, with 24.56 million shares, or about 6.93% of shares outstanding.

What does the institutional filing activity show for CEG?

Constellation Energy has 10 institutional rows on file. Previous position sizes are unavailable, so increases and reductions cannot be determined.

What insider transactions are available for CEG?

TECHi shows 56 dated CEG insider transactions through Aug 11, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.

Are CEG insiders buying or selling?

The displayed CEG activity reads Mixed, sale-heavy: 1 sale and 1 purchase. Other transaction types remain separate.

Who is the most active reported CEG insider?

DOMINGUEZ JOSEPH has the largest absolute share movement in the displayed CEG filing rows, totaling 428,375 shares. The action labels provide the transaction context.

What this page answers

Check who owns the float and whether insiders are active.

Explore Institutional concentration, insider transaction pattern, and float context.

Keep in mind Filings are delayed or transactions are administrative rather than economic.

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