Acquiring Company
Constellation Energy
Acquired Company
Calpine Corporation
BaltimoreUnited StatesEnergyOil And GasRenewable EnergyBiomass EnergyEnergyOil And GasRenewable EnergyDescription
In January 2025, Constellation Energy Corporation announced its plan to acquire Calpine in a cash and stock transaction valued at approximately $16.4 billion. This acquisition aims to merge Constellation's clean energy production capabilities with Calpine's natural gas assets. The deal is expected to close in the fourth quarter of 2025 following regulatory approvals. This strategic move will significantly enhance earnings and expand Constellation's market reach.
Who to call at Constellation Energy, and when
When Constellation Energy changes hands, the new owners review vendors, systems and leadership. That is when the door opens.
- An alert the day Constellation Energy raises, hires an executive or expands, scored against what you sell
- The decision-makers there, with verified emails
- Who you already know at Constellation Energy, from your own LinkedIn network
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Fundz sees it the moment Constellation Energy makes an acquisition, hires an exec or expands, usually minutes after it happens, and tells you who to reach.
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Frequently asked
Who acquired Calpine Corporation?
Calpine Corporation was acquired by Constellation Energy, based in Baltimore. The deal was reported on July 10, 2025. Constellation Energy is the country's largest operator of nuclear power plants and has been awarded a record $1 billion in contracts to supply nuclear power to the U.S. government over the next decade. Constellation Energy is publicly traded (CEG) and operates in Energy.
When did Constellation Energy acquire Calpine Corporation?
Constellation Energy's acquisition of Calpine Corporation was reported on July 10, 2025. In January 2025, Constellation Energy Corporation announced its plan to acquire Calpine in a cash and stock transaction valued at approximately $16.4 billion. Fundz records the date the transaction was first publicly reported, sourced from filings and company announcements.
What does Calpine Corporation do?
Calpine Corporation is a leading U.S. power generation company and a business unit of Constellation (NASDAQ: CEG), operating America’s largest fleet of natural gas and geothermal power plants in competitive markets. It is privately held, operating in Energy, and is based in United States.
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