Talen Energy Corp
Cornerstone Generation Holdings, LP operates as an independent power producer generating electricity through a diversified portfolio of natural gas and coal-fired generation facilities located in the Midwest and Mid-Atlantic regions of the United States. The company's primary business involves the development,… From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Talen Energy Corp does
In the company’s own words
Cornerstone Generation Holdings, LP operates as an independent power producer generating electricity through a diversified portfolio of natural gas and coal-fired generation facilities located in the Midwest and Mid-Atlantic regions of the United States. The company's primary business involves the development, ownership, and operation of electric generating stations that supply power to regional markets and participate in wholesale electricity markets managed by PJM Interconnection.
The company's generation portfolio includes several key facilities: the Gavin Power Station, a coal-fired generation facility located near Cheshire, Ohio; the Darby Generating Station, a gas-fired power plant near Mt. Sterling, Ohio; and the Lawrenceburg Generating Station, a gas-fired facility in Lawrenceburg, Indiana. These projects represent the core operational assets through which Cornerstone Generation generates revenue by selling electric energy, capacity, and ancillary services into wholesale markets.
Cornerstone Generation operates under market-based rate authority granted by the Federal Energy Regulatory Commission, allowing the company to sell electricity at competitive market rates rather than regulated rates. The company maintains participation in PJM's energy and capacity markets, with operations subject to oversight by regional regulatory bodies including the Indiana Utility Regulatory Commission and the Public Utilities Commission of Ohio.
The company's business model centers on optimizing the operational and financial performance of its generation assets through professional asset management services provided by third-party operators. Cornerstone Generation maintains various regulatory approvals and environmental permits necessary for the operation of coal and natural gas generation facilities, including emissions credits and allowances required under applicable environmental laws.
The organizational structure includes Cornerstone Generation Holdings, LP as the parent entity, with Cornerstone Generation, LLC serving as the operating company. The company is structured to maintain exempt wholesale generator status under federal power regulations, enabling participation in competitive wholesale electricity markets. Cornerstone Generation's operations reflect the capital-intensive nature of power generation, requiring ongoing investment in facility maintenance, environmental compliance, and operational excellence to maintain competitive positioning in regional electricity markets.
Company details
- Sector
- Utilities
- Industry (SIC)
- Electric, Gas & Water
- Headquarters
- HOUSTON, TX
- Fiscal year end
- December
- CIK
- 1622536
- SIC
- 4911
Financial performance, year by year
Fiscal 2015–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Talen Energy Corp — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Superinvestors in Talen Energy Corp · what they did last quarter
Share of each manager’s reported 13F portfolio. Change is in shares held, since the previous quarter.
Largest fund holders · Talen Energy Corp’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
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