SCHEDULE: Rubric Capital Management and David Rosen Disclose 9.90% Stake in Talen Energy Corporation

Rubric Capital Management LP and its managing member, David Rosen, have disclosed a combined beneficial ownership of 9.90% of Talen Energy Corporation's common stock.

Summary

• Rubric Capital Management LP, an investment adviser, and David Rosen, its managing member, are the reporting persons for this Schedule 13G Amendment No. 2.
• Rubric Capital Management LP beneficially owns 4,453,131 shares of Talen Energy Corporation's common stock, representing 9.78% of the class, with shared voting and dispositive power over these shares.
• David Rosen beneficially owns 4,505,302 shares, representing 9.90% of the class, with sole voting and dispositive power over 52,171 shares and shared voting and dispositive power over 4,453,131 shares.
• The beneficial ownership percentages are calculated based on 45,509,780 shares of Common Stock outstanding as of May 8, 2025, as reported in Talen Energy Corporation's Quarterly Report on Form 10-Q.
• Rubric Capital Master Fund LP, a fund advised by Rubric Capital, holds the right to receive dividends or proceeds from the sale of more than 5% of the Common Stock.

Sentiment

Score: 5

Explanation: The document is a factual disclosure of beneficial ownership, which is neutral in sentiment. It does not contain positive or negative performance indicators or forward-looking statements.

Future Outlook

NA

Industry Context

This filing is a standard disclosure of significant beneficial ownership by an investment adviser and its principal, indicating a substantial stake in Talen Energy Corporation. Such filings are common for institutional investors accumulating or adjusting their positions in publicly traded companies.

Stakeholder Impact

• Shareholders: The disclosure of a significant stake by Rubric Capital Management and David Rosen may be viewed as a vote of confidence or could signal potential future engagement with company management, depending on the investor's strategy.

Key Dates

Keywords

Talen Energy Corporation, Rubric Capital Management, David Rosen, Beneficial Ownership, Schedule 13G, Common Stock, Institutional Investor, SEC Filing