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Constellation Energy10-K: Restructuring

Completed major acquisition of Calpine in Jan 2026, integrating 2,500 employees and 72 generation assets.

What happened

The acquisition of Calpine represents a massive integration effort, requiring the harmonization of systems, processes, and personnel.

Source

SEC EDGARFeb 24, 2026

Annual report (Form 10-K)

Constellation Energy 10-K for FY2025

Filing excerpt

On January 7, 2026, Constellation acquired all of the outstanding equity interests of Calpine in a cash and stock transaction.

sec.gov/Archives/edgar/data/1168165/000186827526000032/ceg-20251231.htmRead the full source

Other signals in this filing (11)

Extracted by Autobound

From the Signal API record
Signal
10-K: Restructuring

What this signalsFilings often name leadership changes, deals and spending plans.

Period
FY2025
Fiscal year end
12/31
Filed
Feb 24, 2026

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The full record

From the Signal API record

Details

CIK
1168165
Accession number
0001868275-26-000032
Timeframe
Current year
Filing year
2026
Why it matters
Change management needs
Signal category
Workforce

Topics and mentions

Technologies

  • natural gas
  • geothermal
  • solar
  • battery storage

Regions named

  • Texas
  • California
  • Northeast

Extraction

Confidence
High
Relevance
90%
Sentiment
Positive
Detected
Mar 3, 2026
signal_type
sec-10k
signal_subtype
restructuring

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This page shows a preview. The full sec-10k record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/84e522ec-9b31-47f7-baa1-df1508a8c33a returns this record as JSON. POST /v1/companies/enrich returns every signal for constellationenergy.com.

{
  "signal_id": "84e522ec-9b31-47f7-baa1-df1508a8c33a",
  "signal_type": "sec-10k",
  "signal_subtype": "restructuring",
  "detected_at": "2026-03-03T05:50:58.314+00:00",
  "company": {
    "name": "Constellation Energy",
    "domain": "constellationenergy.com"
  },
  "data": {
    "detail": "The acquisition of Calpine represents a massive integration effort, requiring the harmonization of systems, processes, and personnel. This creates significant opportunities for vendors specializing in enterprise software (ERP, HRIS), asset management, and operational technology integration to support the newly combined entity.",
    "metrics": {
      "timeframe": "current_year"
    },
    "summary": "Completed major acquisition of Calpine in Jan 2026, integrating 2,500 employees and 72 generation assets.",
    "excerpts": "On January 7, 2026, Constellation acquired all of the outstanding equity interests of Calpine in a cash and stock transaction.",
    "relevance": 0.9,
    "sentiment": "positive",
    "confidence": "high",
    "source_url": "https://www.sec.gov/Archives/edgar/data/1168165/000186827526000032/ceg-20251231.htm",
    "filing_date": "2026-02-24",
    "filing_year": 2026,
    "fiscal_year_end": "12/31",
    "sales_relevance": "Change management needs",
    "signal_category": "workforce",
    "regions_mentioned": [
      "Texas",
      "California",
      "Northeast"
    ],
    "technologies_mentioned": [
      "natural gas",
      "geothermal",
      "solar",
      "battery storage"
    ]
  }
}

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