Constellation Energy Corporation (CEG) ownership: Top institutional holder: VANGUARD GROUP INC ($13.65B). Insider activity: Net Seller (2 buys, 18 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 38628336.00 | $13.65B | 2025-12-31 |
| BlackRock, Inc. | 23509199.00 | $6.56B | 2026-03-31 |
| ECP ControlCo, LLC | 22043724.00 | $6.16B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 20138742.00 | $5.62B | 2026-03-31 |
| STATE STREET CORP | 18796388.00 | $5.25B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 15013945.00 | $4.19B | 2026-03-31 |
| Capital International Investors | 11608787.00 | $3.25B | 2026-03-31 |
| FMR LLC | 10181644.00 | $2.84B | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 | |
| Sell | null | 2026-04-28 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.