TLN

Talen Energy Corp

Utilities · Electric, Gas & Water · HOUSTON, TX · CIK 0001622536

The business

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.

Ownership

Who holds Talen Energy Corp — from fund N-PORT and institutional 13F filings · N-PORT 2026Q1 · 13F 2026-03-31

462
funds hold it
2 of 36
superinvestors hold it
$5.97B
fund-held value

Top fund holders

Fund% of fundValue
iShares Core S&P Mid-Cap ETF
IJH · iShares Trust
0.46%$482.88M
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.02%$461.68M
Reaves Utility Income Fund
UTG
10.24%$351.77M
VANGUARD SMALL-CAP INDEX FUND
VB · VANGUARD INDEX FUNDS
0.20%$336.34M
VANGUARD SMALL-CAP GROWTH INDEX FUND
VBK · VANGUARD INDEX FUNDS
0.49%$188.25M

Superinvestors in Talen Energy Corp

Stephen MandelINCREASED +40.7%
Lone Pine Capital
4.6%
Polen CapitalDECREASED -49.4%
Polen Capital Management
<0.1%

Share of each manager's reported 13F portfolio.

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.

15 years of Talen Energy Corp's financials

Income statement, balance sheet and cash flow across 15 years, every filing with its disclosures, and each number traceable to the filing it came from — free with an account, no card required.

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