Close the acquisition of Calpine Corporation
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
- 10 Jan 2025
- Due
- 31 Dec 2025
- Delivered
- 7 Jan 2026
- Deadline
- Met
- Late
- Not met
- Today
What the company said
“Transaction close targeted for 4Q 2025”
What we found
Evidence strength A What the grades mean
Constellation Energy targeted a 4Q 2025 close for the Calpine acquisition, but the transaction was completed on January 7, 2026.
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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 -10.1% against the S&P 500 over the three sessions around the disclosure (8 May 2026 to 13 May 2026). What this measures
Checked 17 Oct 2026.
Commitment lineage
Every time the company restated this commitment. The original is never changed, and the outcome is always measured against version 1.
- 2 versions
-
Version 1 · original · stated 10 Jan 2025
Deadline 31 Dec 2025 (“4Q 2025”) · wording aspirational
-
Version 2 · stated 6 May 2025
Deadline 31 Dec 2025 (“by Year-end”) · wording firm
“Calpine Transaction Remains On Track to Close by Year-end”
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 closing
- Language
- Aspirational (“aims”, “intends”)
- In the company’s control
- Low
- Specificity
- Medium
- Conditional
- Yes: subject to approvals from DOJ, FERC, New York Public Service Commission and Public Utility Commission of Texas
- 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-010690 · Corrections policy