[8-K] Talen Energy Corp Reports Material Event

Rhea-AI Filing Summary

Talen Energy Corporation filed a current report to share that it has released information about its results in the PJM Base Residual Auction for the 2027/2028 planning year. The company furnished a press release as an exhibit, which contains the details of those auction results.

The auction outcomes relate to Talen’s participation in the PJM capacity market, which helps determine how its power assets may be compensated for being available to serve future electricity demand. The press release is provided for informational purposes and is expressly furnished rather than filed, meaning it is not subject to certain Exchange Act liability provisions and is not automatically incorporated into other securities law documents.

8-K Event Classification

2 items: 7.01, 9.01

2 items

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (date of earliest event reported): December 17, 2025

Talen Energy Corporation

(Exact name of registrant as specified in its charter)

Delaware

001-37388

47-1197305

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(IRS Employer Identification No.)

2929 Allen Pkwy, Suite 2200

Houston, TX 77019

(Address of principal executive offices) (Zip Code)

(888) 211-6011

(Registrant’s telephone number, including area code)

Not applicable

(Former name, former address and former fiscal year, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common stock, par value $0.001 per share

TLN

The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR§230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01. Regulation FD Disclosure.

On December 17, 2025, Talen Energy Corporation (“Talen”) issued a press release announcing results in the PJM Base Residual Auction for the 2027/2028 planning year. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (this “Report”) and is incorporated herein by reference.

The information under this Item 7.01 and in Exhibit 99.1 to this Report is being furnished and shall not be deemed “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information under this Item 7.01 and in Exhibit 99.1 to this Report shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.			Description.
99.1			Press Release dated December 17, 2025.
104			Cover Page Interactive Data File (cover page XBRL tags embedded within the Inline XBRL document).

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

									TALEN ENERGY CORPORATION
Date:			December 17, 2025			By:			/s/ Cole Muller
						Name:			Cole Muller
						Title:			Chief Financial Officer

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FAQ

What did Talen Energy Corporation (TLN) report in this 8-K?

Talen Energy Corporation reported that it issued a press release announcing its results in the PJM Base Residual Auction for the 2027/2028 planning year and furnished that press release as an exhibit.

Which PJM auction results did Talen Energy Corporation (TLN) disclose?

Talen disclosed results from the PJM Base Residual Auction for the 2027/2028 planning year through a press release that is attached as Exhibit 99.1.

How did Talen Energy (TLN) provide the PJM auction information to investors?

Talen provided the PJM auction information via a press release dated December 17, 2025, which is furnished as Exhibit 99.1 under a Regulation FD disclosure item.

Is the PJM auction press release considered filed information for Talen (TLN)?

No. The company states that the information in Item 7.01 and Exhibit 99.1 is being furnished and shall not be deemed filed for purposes of Section 18 of the Exchange Act.

Does this Talen Energy (TLN) report change any existing registration statements?

The company specifies that the information in Item 7.01 and Exhibit 99.1 will not be incorporated by reference into any registration statement or other document under the Securities Act.

What exhibits are included with this Talen Energy Corporation (TLN) 8-K?

The filing includes Exhibit 99.1, which is the press release dated December 17, 2025, and Exhibit 104, the cover page interactive data file with Inline XBRL tags.