Form 8-K

8-K — Duke Energy CORP

Accession: 0001104659-26-110588

Filed: 2026-09-25

Period: 2026-09-24

CIK: 0001326160

SIC: 4931 (ELECTRIC & OTHER SERVICES COMBINED)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — tm2626114d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2626114d1_ex99-1.htm)

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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):

September 24, 2026

Commission

File

Number

Exact Name of Registrant as Specified in its Charter, State or other

Jurisdiction of Incorporation,

Address of Principal Executive Offices, Zip Code, and Registrant's

Telephone Number, Including Area Code

IRS

Employer

Identification No.

1-32853

DUKE

ENERGY CORPORATION

(a Delaware corporation)

525 South Tryon Street

Charlotte,

North Carolina 28202

800-488-3853

20-2777218

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:

Registrant

Title of each class

Trading

Symbol(s)

Name

of each

exchange on

which

registered

Duke Energy

Common Stock, $0.001 par value

DUK

New York Stock Exchange LLC

Duke Energy

5.625% Junior Subordinated Debentures due September 15, 2078

DUKB

New York Stock Exchange LLC

Duke Energy

Depositary

Shares each representing a 1/1,000th

interest in a share of 5.75% Series A Cumulative Redeemable Perpetual Preferred Stock, par value $0.001 per share

DUK PR A

New York Stock Exchange LLC

Duke Energy

3.10% Senior Notes due 2028

DUK 28A

New York Stock Exchange LLC

Duke Energy

3.85% Senior Notes due 2034

DUK 34

New York Stock Exchange LLC

Duke Energy

3.75% Senior Notes due 2031

DUK 31A

New York Stock Exchange LLC

Duke Energy

Corporate Units

DUKU

New York Stock Exchange LLC

Indicate by check mark whether the registrant

is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of

the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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 5.02. Departure of Directors or Certain

Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Appointment of Joyce Mullen to the Board of Directors

On September 24, 2026, the Board of Directors

(the “Board”) of Duke Energy Corporation (the “Corporation”) appointed Joyce Mullen to the Board, effective September 28,

2026, with an initial term expiring at the 2027 Annual Meeting of Shareholders. The Board also appointed Ms. Mullen to the Audit

Committee and the Operations and Nuclear Oversight Committee of the Board, effective September 28, 2026.

Ms. Mullen retired as president and chief

executive officer of Insight Enterprises, Inc. (“Insight”), a Fortune 500 technology company, in April 2026 and

continues to advise Insight’s leadership as executive vice president of strategic development. She joined Insight in October 2020

as president of North America. Before joining Insight, Ms. Mullen held several executive positions at Dell Technologies, where she

led organizations encompassing sales, operations, supply chain, partner strategy, services delivery and logistics. Earlier in her career,

she held leadership positions at Cummins Engine Company. Ms. Mullen also serves on the board of directors of The Toro Company.

The Board has affirmatively determined that Ms. Mullen

is independent pursuant to the Corporation’s Standards for Assessing Director Independence, the listing standards of the New York

Stock Exchange and the rules and regulations of the U.S. Securities and Exchange Commission.

As a non-employee director of the Corporation,

Ms. Mullen will receive a pro-rated payment of the cash and stock annual retainer and will be eligible for other retainers, if applicable,

in accordance with the Corporation’s Director Compensation Program, as set forth on Exhibit 10.1 of the Corporation’s

Form 10-Q, filed with the SEC on August 4, 2026. Ms. Mullen will also be eligible to participate in the Corporation’s

Directors’ Savings Plan, which is described in the Annual Proxy Statement filed with the SEC on March 20, 2026, and will be

subject to the Corporation’s Stock Ownership Guidelines, which require outside directors to own common stock, or common stock equivalents,

of the Corporation with a value equal to at least five times the annual Board cash retainer (i.e., an ownership level of $700,000) or

retain 50% of their vested annual equity retainer.

There are no arrangements or understandings between

Ms. Mullen and any other person pursuant to which Ms. Mullen was appointed to the Board. There are no transactions in which

Ms. Mullen has or will have an interest that would be required to be disclosed pursuant to Item 404(a) of Regulation S-K under

the Securities Exchange Act of 1934, as amended, at this time.

Item 8.01. Other Events.

On September 25, 2026, the Corporation issued

a press release announcing Ms. Mullen’s appointment to the Board. A copy of the press release is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

99.1

Press Release, dated September 25, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities

and Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

DUKE ENERGY CORPORATION

/s/ DAVID S. MALTZ

David S. Maltz

Title: Vice President, Chief Governance Officer, Corporate Secretary and Mergers and Acquisitions

Dated: September 25, 2026

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2626114d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

Date: Sept. 25, 2026

Duke Energy board

appoints Joyce Mullen as new member

CHARLOTTE, N.C. – Duke Energy’s

board of directors today announced the appointment of Joyce Mullen as a new board member, effective Sept. 28. Mullen will serve on the

Audit Committee and the Operations and Nuclear Oversight Committee.

Mullen retired as president and CEO

of Insight Enterprises in April 2026. She continues to advise its leadership as executive vice president of strategic development.

“As we serve our customers across

a vibrant operating territory that is growing every day, Joyce’s experience as a transformative leader will help us further accelerate

how we shape the future of energy,” said Harry Sideris, president and chief executive officer of Duke Energy. “We look forward

to working with Joyce as we continue to advance Duke Energy’s strategy and position the company to thrive amid unprecedented growth,

technological innovation and transformation across the industry.”

During Mullen’s tenure as CEO, Insight

Enterprises set its ambition to help organizations maximize the business value of technology and accelerate digital evolution by becoming

the industry’s leading AI-first solutions integrator – combining the right hardware, software and services.

“Joyce is a proven leader during

periods of rapid change and volatility, and her perspective will be incredibly valuable as Duke Energy navigates a pivotal time for both

the company and the broader industry,” said Ted Craver, independent chair of the Duke Energy Board of Directors. “Her experience

at the intersection of AI, digital innovation and customer-focused execution will strengthen the board’s diverse perspectives and

help Duke Energy continue delivering long-term value for its customers, employees, communities, and shareholders.”

Prior to serving as CEO, Mullen served

as Insight’s president of North America, navigating a global pandemic while driving double-digit sales growth. Prior to joining

Insight, Mullen held numerous executive positions during a 21-year tenure at Dell Technologies, leading a broad range of organizations

including sales, operations, supply chain, partner strategy, services delivery, and logistics. Prior to Dell, she held various leadership

roles at Cummins Engine Company.

Mullen serves on the board of directors

of The Toro Company. She earned her MBA from Harvard Business School and bachelor’s in international relations from Brown University.

Duke Energy Corporation | 525 S. Tryon

Street | Charlotte, NC 28202 | www.duke-energy.com

Duke Energy News Release

Duke Energy

Duke Energy (NYSE: DUK), a Fortune 150

company headquartered in Charlotte, N.C., is one of America’s largest energy holding companies. The company’s electric utilities

serve 8.7 million customers in North Carolina, South Carolina, Florida, Indiana, Ohio and Kentucky, and collectively own 55,700

megawatts of energy capacity. Its natural gas utilities serve 1.6 million customers in North Carolina, South Carolina, Ohio and Kentucky.

Duke Energy is executing an energy modernization

strategy, keeping customer value at the forefront as it invests in electric grid upgrades and efficient generation resources to strengthen

the system and serve growing energy needs.

More information is available at duke-energy.com.

Follow Duke Energy on X, LinkedIn, Instagram, TikTok and Facebook for stories about the people and innovations powering its

communities.

###

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