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acquisitionAnnounced · Mar 10, 2026Clean EnergySource · CredibleArticle · Factual
Constellation Energy acquires Calpine
David Najork · Founding Software Engineer
Published · Updated · 1 min read
Deal value
$16.4B
Target
Calpine
Houston, Texas
Acquirer
Constellation Energy
Merger
Status
Pending
Constellation Energy agreed to acquire Calpine. Reported deal value: $16.4B. Status: Pending. Sector: Clean Energy. Target headquarters context: Houston, Texas, United States.
This page summarizes publicly available information about the transaction as of 2026-03-10. Figures and status may change as filings and press coverage update.
March 10 , 2026 at 10 :15 AM EDT In a move that fundamentally reshapes the American power landscape, Constellation Energy ( NASDAQ: CEG ) has officially completed its landmark $16.4 billion acquisition of Calpine Corporation
Deal timeline
Announced
Mar 10, 2026 · markets.financialcontent.com
Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.
Sector context
This transaction is classified in Clean Energy with a reported deal value of $16.4B. Figures and status may change as sources update.
Sources: markets.financialcontent.com · Primary article · FireStrike proprietary index