Close the transaction with Calpine
Delivered after the deadline (7 days after the deadline)
AI-confirmed · human review in progress Independent AI checks agreed on primary SEC or regulator evidence. Records are now being reviewed by hand, starting with those our customers order.
- Announced
- 21 Nov 2025
- Due
- 31 Dec 2025
- Delivered
- 7 Jan 2026
- Deadline
- Met
- Late
- Not met
- Today
What the company said
“The leadership changes take effect upon completion of Constellation's deal with Calpine, which is expected to close in the fourth quarter of 2025, subject to clearance by the Department of Justice”
What we found
Evidence strength A What the grades mean
Constellation Energy announced the acquisition of Calpine was expected to close in Q4 2025, but the transaction actually closed on January 7, 2026.
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A Constellation Energy 10-K filed 2026-02-24
“the incremental $2.5 billion became available upon closing of the Calpine acquisition in January 2026.” ✓ confirmed on the page
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A Constellation Energy 10-Q filed 2026-05-11
“On January 7, 2026 (the “Acquisition Date”), we acquired all of the outstanding equity interests in Calpine” ✓ confirmed on the page
Market reaction: the shares moved +9.1% against the S&P 500 over the three sessions around the disclosure (23 Feb 2026 to 26 Feb 2026). What this measures
Checked 17 Oct 2026.
Commitment DNA
The structured record of this commitment. Fields the company did not state are left blank rather than guessed.
- Event type
- Acquisition close
- Indicative materiality
- High rules
- Action
- Close
- Deliverable
- Calpine acquisition
- Language
- Expected (“expects”, “plans”)
- In the company’s control
- Low
- Specificity
- Medium
- Conditional
- Yes: subject to clearance by the Department of Justice; other customary closing conditions
- Depends on
- Regulatory, Government, Counterparty
How this entry was checked
- Commitment recordedThe company's words were matched word for word against the filing.
- First checkAn AI model, Gemini (Google), read the company's later filings and recorded the outcome with a quoted passage.
- Second check: agreesA different AI model, Claude (Anthropic), re-read the evidence without being told the outcome and reached the same answer.
Confirmed. This outcome counts towards the company's Kept Score. How verification works
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Report an error in this entry Reference: KI-C-2025-CEG-010699 · Corrections policy