Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of Constellation Energy Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001868275.
Disclosed value leader
VANGUARD CAPITAL MANAGEMENT LLC
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- CEG on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001868275
- Issuer location
- Baltimore, MD
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Constellation Energy Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
VANGUARD CAPITAL MANAGEME...
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 6.4%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 6.4%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
6.4%
FMR LLC
4.6%
ECP ControlCo, LLC
4%
Capital International Investors
3.3%
Michael Koehler
0.01%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
6.4%
|
$6,471,473,540
23,174,480 shares
|
$0 | 31 Mar 2026 |
| FMR LLC |
13D/G
13F
Company
|
4.6%
|
$3,224,306,581
14,341,725 shares
|
$0 | 31 Dec 2024 |
| ECP ControlCo, LLC |
13D/G
13F
Company
|
4%
|
$3,630,738,403
14,443,227 shares
|
-$1,910,612,936 | 30 Jun 2026 |
| Capital International Investors |
13D/G
13F
Company
|
3.3%
|
$3,285,639,058
11,940,831 shares
|
-$1,439,076,894 | 31 Mar 2026 |
| Michael Koehler |
3/4/5
EVP & Chief Admin Officer
|
0.01%
|
$19,340,351
53,289 shares
mixed-class rows
|
— | 09 Feb 2026 |
| Kathleen Barron |
3/4/5
EVP & Chief Strategy Officer
|
0.01%
|
$17,956,614
39,749 shares
mixed-class rows
|
— | 29 Oct 2025 |
| BlackRock, Inc. |
13F
Company
|
6.8%
|
$6,098,966,332
24,555,970 shares
|
— | 30 Jun 2026 |
| STATE STREET CORP |
13F
Company
|
5.4%
|
$4,821,268,033
19,411,636 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$417,931.
Buys
$417,931
Insiders: 1
Sells
$0
Insiders: 0
Net
+$417,931
Shares: +1,500
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 1,500
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 1,500 | 0 | $417,931 | $0 | +$417,931 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 25 reporting-owner rows connected to Constellation Energy Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
25
Largest Forms 3/4/5 holder
Andrew R. Novotny
Net 12M change
+$417,931
Latest report
30 Sep 2026
Recent insider transactions for Constellation Energy Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Charles L. Harrington | CEG | Deferred Compensation - Phantom Share Equivalents | Award | 3.51% | 188 | 5,542 | 30 Sep 2026 | Direct | ||
| Roger W. Crandall | CEG | Deferred Compensation - Phantom Share Equivalents | Award | 82 | 82 | 30 Sep 2026 | Direct | |||
| Roger W. Crandall | CEG | Common Stock | Purchase | 777.2% | $417,931 | $278.62 | 1,500 | 1,693 | 11 Aug 2026 | Direct |
| Roger W. Crandall | CEG | Common Stock (Deferred Stock Units) | Award | 462 | 462 | 04 Aug 2026 | Direct | |||
| Charles L. Harrington | CEG | Deferred Compensation - Phantom Share Equivalents | Award | 2.81% | 146 | 5,345 | 30 Jun 2026 | Direct | ||
| Nneka L. Rimmer | CEG | Common Stock (Deferred Stock Units) | Award | 14.2% | 556 | 4,475 | 28 Apr 2026 | Direct | ||
| John M. Richardson | CEG | Common Stock (Deferred Stock Units) | Award | 3.51% | 556 | 16,399 | 28 Apr 2026 | Direct | ||
| Eileen P. Paterson | CEG | Common Stock | Award | 55.7% | 556 | 1,555 | 28 Apr 2026 | Direct | ||
| Robert J. Lawless | CEG | Common Stock (Deferred Stock Units) | Award | 1.09% | 556 | 51,340 | 28 Apr 2026 | Direct | ||
| Khandpur K. Ashish | CEG | Common Stock (Deferred Stock Units) | Award | 9.75% | 556 | 6,257 | 28 Apr 2026 | Direct | ||
| Dhiaa M. Jamil | CEG | Common Stock | Award | 48.4% | 556 | 1,705 | 28 Apr 2026 | Direct | ||
| Julie Holzrichter | CEG | Common Stock (Deferred Stock Units) | Award | 9.75% | 556 | 6,257 | 28 Apr 2026 | Direct | ||
| Charles L. Harrington | CEG | Common Stock | Award | 55.7% | 556 | 1,555 | 28 Apr 2026 | Direct | ||
| Bradley M. Halverson | CEG | Common Stock (Deferred Stock Units) | Award | 9.75% | 556 | 6,257 | 28 Apr 2026 | Direct | ||
| Yves C. de Balmann | CEG | Common Stock (Deferred Stock Units) | Award | 1.09% | 556 | 51,340 | 28 Apr 2026 | Direct | ||
| Charles L. Harrington | CEG | Deferred Compensation - Phantom Share Equivalents | Award | 2.57% | 130 | 5,191 | 31 Mar 2026 | Direct | ||
| Michael Koehler | CEG | Common Stock | Tax liability | -12.6% | -7,660 | 53,289 | 01 Mar 2026 | Direct | ||
| Michael Koehler | CEG | Common Stock | Options Exercise | 46.7% | 19,405 | 60,949 | 01 Mar 2026 | Direct | ||
| Michael Koehler | CEG | Restricted Stock Units | Options Exercise | -100% | -19,405 | 0 | 01 Mar 2026 | Direct | ||
| Michael Koehler | CEG | Restricted Stock Units | Award | 6,063 | 6,063 | 01 Mar 2026 | Direct | |||
| Michael Koehler | CEG | Common Stock | Disposed to Issuer | -23.7% | -12,920 | 41,544 | 09 Feb 2026 | Direct | ||
| Michael Koehler | CEG | Common Stock | Tax liability | -14.4% | -9,202 | 54,465 | 09 Feb 2026 | Direct | ||
| Michael Koehler | CEG | Common Stock | Options Exercise | 63.2% | 24,650 | 63,667 | 09 Feb 2026 | Direct | ||
| Michael Koehler | CEG | 2023-2025 Performance Shares | Options Exercise | -100% | -21,274 | 0 | 09 Feb 2026 | Direct | ||
| Michael Koehler | CEG | 2023-2025 Performance Shares | Award | 21,274 | 21,274 | 09 Feb 2026 | Direct | |||
| Michael Koehler | CEG | Restricted Stock Units | Award | 91.2% | 1,941 | 4,069 | 09 Feb 2026 | Direct | ||
| Michael Koehler | CEG | Restricted Stock Units | Options Exercise | -61.3% | -3,376 | 2,128 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | Common Stock | Disposed to Issuer | -43.4% | -92,993 | 121,360 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | Common Stock | Tax liability | -27.9% | -83,104 | 214,353 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | Common Stock | Options Exercise | 181.6% | 191,817 | 297,457 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | 2023-2025 Performance Shares | Options Exercise | -100% | -164,913 | 0 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | 2023-2025 Performance Shares | Award | 164,913 | 164,913 | 09 Feb 2026 | Direct | |||
| Joseph Dominguez | CEG | Restricted Stock Units | Award | 103.8% | 18,189 | 35,714 | 09 Feb 2026 | Direct | ||
| Joseph Dominguez | CEG | Restricted Stock Units | Options Exercise | -60.6% | -26,904 | 17,525 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | Common Stock | Disposed to Issuer | -28.8% | -26,587 | 65,609 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | Common Stock | Tax liability | -19.4% | -22,166 | 92,197 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | Common Stock | Options Exercise | 87.9% | 53,507 | 114,363 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | 2023-2025 Performance Shares | Options Exercise | -100% | -46,176 | 0 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | 2023-2025 Performance Shares | Award | 46,176 | 46,176 | 09 Feb 2026 | Direct | |||
| Bryan Craig Hanson | CEG | Restricted Stock Units | Award | 109.6% | 4,972 | 9,508 | 09 Feb 2026 | Direct | ||
| Bryan Craig Hanson | CEG | Restricted Stock Units | Options Exercise | -61.8% | -7,331 | 4,536 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | Common Stock | Disposed to Issuer | -32.6% | -13,444 | 27,803 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | Common Stock | Tax liability | -26.2% | -14,682 | 41,248 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | Common Stock | Options Exercise | 124.4% | 31,011 | 55,930 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | 2023-2025 Performance Shares | Options Exercise | -100% | -26,387 | 0 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | 2023-2025 Performance Shares | Award | 26,387 | 26,387 | 09 Feb 2026 | Direct | |||
| Dardis David O | CEG | Restricted Stock Units | Award | 112% | 3,638 | 6,885 | 09 Feb 2026 | Direct | ||
| Dardis David O | CEG | Restricted Stock Units | Options Exercise | -58.7% | -4,623 | 3,247 | 09 Feb 2026 | Direct | ||
| Andrew R. Novotny | CEG | Restricted Stock Units | Award | 6,791 | 6,791 | 09 Feb 2026 | Direct | |||
| James McHugh | CEG | Common Stock | Disposed to Issuer | -22.7% | -16,940 | 57,585 | 09 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.