---
schema_version: "secwatch.filing_event.v1"
accession: "0001622536-26-000070"
form_type: "8-K/A"
ticker: "TLN"
cik: "0001622536"
company_name: "Talen Energy Corp"
filed_at: "2026-08-12T21:08:52+00:00"
generated_at: "2026-08-12T21:10:19.927543+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Talen 8-K/A: Cornerstone acquisition financials show 2025 revenue $323M, net loss $3M

## Summary
- Cornerstone Generation (acquired assets) 2025: operating revenue $323.2M, operating income $62.9M, net loss $3.0M.
- Deal closed June 15, 2026 for $3.5B: $2.6B cash + 2,399,998 TEC shares valued at $927M.
- Acquired plants: Lawrenceburg 1,196 MW CCGT, Waterford 893 MW CCGT, Darby 427 MW CT, all in PJM.
- Cornerstone at Dec 31, 2025: total assets $2.845B, long-term debt $1.346B, member's equity $1.349B.
- Pro forma statements for FY2025 and H1 2026 provided in Exhibit 99.4.

## SEC filing metadata
- accession: 0001622536-26-000070
- form_type: 8-K/A
- ticker: TLN
- cik: 0001622536
- company_name: Talen Energy Corp
- filed_at: 2026-08-12T21:08:52+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1622536/000162253626000070/0001622536-26-000070-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1622536/000162253626000070/tln-20260615.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001622536-26-000070
- JSON: https://secwatch.observer/filing/0001622536-26-000070.json
- Plain text: https://secwatch.observer/filing/0001622536-26-000070.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.