VANGUARD GROUP INC
Rank #1
10.7%
- Shares
- 38.63M
- Change
- +205.71K
- Change %
- +54.00%
- Filing
- Dec 31, 2025
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · UTILITIES · Holders
Constellation Energy Corp (CEG) Institutional Ownership & Insider Trading History
Top CEG institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Ownership read
CEG insider sentiment: Net selling.
VANGUARD GROUP INC is the largest loaded institutional holder. 47 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
CEG
Purchases—
Sales993.14K
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
38.63M
VANGUARD GROUP INC
Insider stance
Net selling
$118M sold / — bought
Latest filing
Apr 28, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
- Holder rows
- 120
- Market data feed
- Latest filing
- Apr 28, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 85
- 35 decreased in loaded rows
- Insider rows
- 120
- Market data feed
Top 120 institutional holders
Constellation Energy Corp (CEG) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where the ownership feed supplies them.
BLACKROCK
Rank #2
6.54%
- Shares
- 23.51M
- Change
- +159.73K
- Change %
- +68.00%
- Filing
- Mar 31, 2026
Increased
ECP CONTROLCO
Rank #3
6.13%
- Shares
- 22.04M
- Change
- +22.04M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
VANGUARD CAPITAL MANAGEMENT LLC
Rank #4
5.60%
- Shares
- 20.14M
- Change
- +20.14M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
STATE STREET CORP
Rank #5
5.23%
- Shares
- 18.80M
- Change
- +310.50K
- Change %
- +1.68%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #6
4.17%
- Shares
- 15.01M
- Change
- +15.01M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
CAPITAL INTERNATIONAL INVESTORS
Rank #7
3.23%
- Shares
- 11.61M
- Change
- -5.20M
- Change %
- -30.95%
- Filing
- Mar 31, 2026
Decreased
FMR LLC
Rank #8
2.83%
- Shares
- 10.18M
- Change
- -4.18M
- Change %
- -29.12%
- Filing
- Mar 31, 2026
Decreased
MORGAN STANLEY
Rank #9
2.47%
- Shares
- 8.90M
- Change
- +848.55K
- Change %
- +10.54%
- Filing
- Mar 31, 2026
Increased
CANADA PENSION PLAN INVESTMENT BOARD
Rank #10
2.13%
- Shares
- 7.67M
- Change
- +7.53M
- Change %
- +53.30%
- Filing
- Mar 31, 2026
Increased
GEODE CAPITAL MANAGEMENT
Rank #11
2.03%
- Shares
- 7.29M
- Change
- +224.96K
- Change %
- +3.18%
- Filing
- Mar 31, 2026
Increased
JENNISON ASSOCIATES LLC
Rank #12
1.84%
- Shares
- 6.60M
- Change
- -375.79K
- Change %
- -5.38%
- Filing
- Mar 31, 2026
Decreased
PRICE T ROWE ASSOCIATES INC
Rank #13
1.52%
- Shares
- 5.47M
- Change
- +2.53M
- Change %
- +85.79%
- Filing
- Mar 31, 2026
Increased
CAPITAL RESEARCH GLOBAL INVESTORS
Rank #14
1.33%
- Shares
- 4.79M
- Change
- +2.91M
- Change %
- +1.55%
- Filing
- Mar 31, 2026
Increased
COATUE MANAGEMENT LLC
Rank #15
1.29%
- Shares
- 4.63M
- Change
- -1.27M
- Change %
- -21.58%
- Filing
- Mar 31, 2026
Decreased
WELLS FARGO & COMPANY
Rank #16
1.20%
- Shares
- 4.32M
- Change
- +165.87K
- Change %
- +3.99%
- Filing
- Mar 31, 2026
Increased
NORGES BANK
Rank #17
1.15%
- Shares
- 4.14M
- Change
- -71.18K
- Change %
- -1.69%
- Filing
- Dec 31, 2025
Decreased
CAPITAL WORLD INVESTORS
Rank #18
1.11%
- Shares
- 3.98M
- Change
- +1.63M
- Change %
- +69.58%
- Filing
- Mar 31, 2026
Increased
BANK OF NEW YORK MELLON CORP
Rank #19
1.01%
- Shares
- 3.63M
- Change
- +276.12K
- Change %
- +8.23%
- Filing
- Mar 31, 2026
Increased
INVESCO LTD.
Rank #20
1.01%
- Shares
- 3.62M
- Change
- -12.89K
- Change %
- -35.00%
- Filing
- Mar 31, 2026
Decreased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | 10.7% | 38.63M | +205.71K Increased | +54.00% | Dec 31, 2025 | |
| 2 | 6.54% | 23.51M | +159.73K Increased | +68.00% | Mar 31, 2026 | |
| 3 | ECP CONTROLCO | 6.13% | 22.04M | +22.04M Initiated | — | Mar 31, 2026 |
| 4 | 5.60% | 20.14M | +20.14M Initiated | — | Mar 31, 2026 | |
| 5 | 5.23% | 18.80M | +310.50K Increased | +1.68% | Mar 31, 2026 | |
| 6 | 4.17% | 15.01M | +15.01M Initiated | — | Mar 31, 2026 | |
| 7 | CAPITAL INTERNATIONAL INVESTORS | 3.23% | 11.61M | -5.20M Decreased | -30.95% | Mar 31, 2026 |
| 8 | 2.83% | 10.18M | -4.18M Decreased | -29.12% | Mar 31, 2026 | |
| 9 | 2.47% | 8.90M | +848.55K Increased | +10.54% | Mar 31, 2026 | |
| 10 | CANADA PENSION PLAN INVESTMENT BOARD | 2.13% | 7.67M | +7.53M Increased | +53.30% | Mar 31, 2026 |
| 11 | 2.03% | 7.29M | +224.96K Increased | +3.18% | Mar 31, 2026 | |
| 12 | 1.84% | 6.60M | -375.79K Decreased | -5.38% | Mar 31, 2026 | |
| 13 | 1.52% | 5.47M | +2.53M Increased | +85.79% | Mar 31, 2026 | |
| 14 | 1.33% | 4.79M | +2.91M Increased | +1.55% | Mar 31, 2026 | |
| 15 | COATUE MANAGEMENT LLC | 1.29% | 4.63M | -1.27M Decreased | -21.58% | Mar 31, 2026 |
| 16 | WELLS FARGO & COMPANY | 1.20% | 4.32M | +165.87K Increased | +3.99% | Mar 31, 2026 |
| 17 | 1.15% | 4.14M | -71.18K Decreased | -1.69% | Dec 31, 2025 | |
| 18 | 1.11% | 3.98M | +1.63M Increased | +69.58% | Mar 31, 2026 | |
| 19 | BANK OF NEW YORK MELLON CORP | 1.01% | 3.63M | +276.12K Increased | +8.23% | Mar 31, 2026 |
| 20 | 1.01% | 3.62M | -12.89K Decreased | -35.00% | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
Constellation Energy Corp (CEG) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
DE, BALMANN YVES C
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
HARRINGTON, CHARLES L.
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
HOLZRICHTER, JULIE
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
LAWLESS, ROBERT J
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
PATERSON, EILEEN P.
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
RICHARDSON, JOHN M
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
RIMMER, NNEKA LOUISE
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
HALVERSON, BRADLEY M
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
JAMIL, DHIAA M.
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
ASHISH, KHANDPUR K
Director
- Shares
- 556
- % company
- <0.01%
- Price
- $305.71
- Value
- $169,975
Filed Apr 28, 2026
HARRINGTON, CHARLES L.
Director
- Shares
- 130
- % company
- <0.01%
- Price
- $279.25
- Value
- $36,303
Filed Mar 31, 2026
KOEHLER, MICHAEL
EVP & Chief Admin Officer
- Shares
- 7.66K
- % company
- <0.01%
- Price
- $329.88
- Value
- $2,526,881
Filed Mar 1, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | DE, BALMANN YVES C Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 2 | HARRINGTON, CHARLES L. Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 3 | HOLZRICHTER, JULIE Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 4 | LAWLESS, ROBERT J Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 5 | PATERSON, EILEEN P. Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 6 | RICHARDSON, JOHN M Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 7 | RIMMER, NNEKA LOUISE Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 8 | HALVERSON, BRADLEY M Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 9 | JAMIL, DHIAA M. Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 10 | ASHISH, KHANDPUR K Director | <0.01% | Award / grant | 556 | $305.71 | $169,975 | Apr 28, 2026 |
| 11 | HARRINGTON, CHARLES L. Director | <0.01% | Award / grant | 130 | $279.25 | $36,303 | Mar 31, 2026 |
| 12 | KOEHLER, MICHAEL EVP & Chief Admin Officer | <0.01% | Sale to issuer | 7.66K | $329.88 | $2,526,881 | Mar 1, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest CEG shareholders?
VANGUARD GROUP INC is the largest institutional holder in the loaded CEG ownership feed, with 38.63 million shares, or about 10.74% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of CEG?
The current TECHi snapshot has 120 loaded institutional rows for Constellation Energy Corp. 85 rows are marked increased or initiated, while 35 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see Constellation Energy Corp insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for CEG, with the latest insider filing dated Apr 28, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are CEG insiders buying or selling?
The loaded CEG Form 4 rows currently read Net selling: 47 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active CEG insider in the loaded filings?
DOMINGUEZ, JOSEPH is the most active insider by absolute share movement in the loaded CEG rows, with 742,833 shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.