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5%+ stakes · Schedule 13D and 13G

Talen Energy Corp: 5%+ holders

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Who has reported owning 5% or more of Talen Energy Corp, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Talen Energy Corp. The largest reported stake is BlackRock, Inc.'s, at 8.6%. 6 filings are on record since July 9, 2025 (Schedule 13G, October 17, 2025).

ECP ControlCo, LLC also filed stake reports on 2 other companies ↓

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Key facts

  • · Reporting person: ECP ControlCo, LLC · Sole voting: 0 · Shared voting: 2,399,998 · Sole dispositive: 0 · Shared dispositive: 2,399,998 · SCHEDULE 13G, 2026-06-23
  • · Reporting person: Vanguard Capital Management · Sole voting: 337,182 · Shared voting: 0 · Sole dispositive: 2,383,547 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-30
  • · Reporting person: The Vanguard Group · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-03-27
  • · Reporting person: Rubric Capital Management LP · Sole voting: 0 · Shared voting: 3,550,000 · Sole dispositive: 0 · Shared dispositive: 3,550,000 · SCHEDULE 13G/A, 2025-11-14
  • · Holder: BlackRock, Inc. · Percent: 8.6% · SCHEDULE 13G
At 5% or more4
Filings6
Latest filing2026-06-23

Talen Energy Corp has 6 Schedule 13D or 13G filings on record since 2025-07-09. 4 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
BlackRock, Inc.8.6%3,913,898SCHEDULE 13G, 2025-10-172025-09-30
7.88%3,602,171SCHEDULE 13G/A, 2025-11-142025-09-30
Vanguard Capital Management5.25%2,383,547SCHEDULE 13G, 2026-04-302026-03-31
ECP ControlCo, LLC5.01%2,399,998SCHEDULE 13G, 2026-06-232026-06-15
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13

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More on Talen Energy Corp and the records around it.

Talen Energy Corp elsewhere on the record

Companies that share a holder

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What the Full Report on Talen Energy Corp covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

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  8. Sources

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Voting and dispositive power, as filed

Reporting personSole votingShared votingSole dispositiveShared dispositiveFiling
Rubric Capital Management LP03,550,00003,550,000SCHEDULE 13G/A, 2025-11-14
David Rosen52,1713,550,00052,1713,550,000SCHEDULE 13G/A, 2025-11-14
Vanguard Capital Management337,18202,383,5470SCHEDULE 13G, 2026-04-30
ECP ControlCo, LLC02,399,99802,399,998SCHEDULE 13G, 2026-06-23
Ecp V, LLC02,399,99802,399,998SCHEDULE 13G, 2026-06-23
ECP V GP Cornerstone DRE, LP062,259062,259SCHEDULE 13G, 2026-06-23
ECP V Cornerstone DRE, LP0371,2620371,262SCHEDULE 13G, 2026-06-23
ECP V-B Cornerstone DRE, LP052,253052,253SCHEDULE 13G, 2026-06-23
ECP V-C Cornerstone DRE, LP0757,5390757,539SCHEDULE 13G, 2026-06-23
ECP V-D Cornerstone DRE, LP01,156,68501,156,685SCHEDULE 13G, 2026-06-23
The Vanguard Group0000SCHEDULE 13G/A, 2026-03-27

The latest filing identifies Talen Energy Corp by CUSIP 87422Q109 and gives its principal executive office as 2929 Allen Pkwy, Suite 2200, Houston, TX 77019 (SCHEDULE 13G, 2026-06-23).

Timeline

FiledHolderPercentFiling
2025-07-09David Rosen9.9%SCHEDULE 13G/A
2025-10-17BlackRock, Inc.8.6%SCHEDULE 13G
2025-11-14David Rosen7.88%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-30Vanguard Capital Management5.25%SCHEDULE 13G
2026-06-23ECP ControlCo, LLC5.01%SCHEDULE 13G

Questions about who owns Talen Energy Corp

Who owns Talen Energy Corp?

On this page, 4 holders' latest ownership filings report 5% or more of Talen Energy Corp: BlackRock, Inc. (8.6%, Schedule 13G, filed 2025-10-17), David Rosen (7.88%, Schedule 13G/A, filed 2025-11-14), Vanguard Capital Management (5.25%, Schedule 13G, filed 2026-04-30) and ECP ControlCo, LLC (5.01%, Schedule 13G, filed 2026-06-23).

Who are the largest shareholders of Talen Energy Corp?

By the share each holder's latest filing reports, the largest holders of Talen Energy Corp on this page are BlackRock, Inc. (8.6%), David Rosen (7.88%) and Vanguard Capital Management (5.25%).

When did BlackRock, Inc. buy into Talen Energy Corp?

The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G, filed 2025-10-17, reporting 8.6%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 6 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

Also on the record for Talen Energy Corp

DateRecordFigureOur pageSource
September 29, 2026Leadership change: Terry L. Nutt appointed, Chief Executive Officer—Leadership changesSource

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/talen-energy
Last updated 2026-11-06
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Who owns 5% or more of Talen Energy Corp? 4 holders at 5% or more, largest BlackRock, Inc. 8.6%. MentionFox, 2026-11-06. https://mentionfox.com/stakes/talen-energy