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): June 2, 2026

Plug Power Inc.

(Exact name of registrant as specified in its charter)

Delaware	1-34392	22-3672377
(State or other jurisdiction	(Commission File	(IRS Employer
of incorporation)	Number)	Identification No.)

968 Albany Shaker Road, Latham, New York		12110
(Address of principal executive offices)		(Zip Code)

(518) 782-7700

Registrant’s telephone number, including area code:

N/A

(Former name or former address, 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 (see General Instruction A.2. below):

¨	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 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		PLUG		The Nasdaq Capital Market

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.

On June 2, 2026, Kavita Mahtani, a Class I director of the Board of Directors (the “Board”) of Plug Power Inc. (the “Company”), and member of the Board’s Audit Committee and Strategy & Financing Committee, notified the Company of her decision to resign from the Board effective as of June 11, 2026. Ms. Mahtani has served on the Board since April 2022. Ms. Mahtani is stepping down to focus on the responsibilities associated with her recently announced executive position at Wells Fargo and her decision to resign from the Board is not the result of a disagreement with the Company on any matter relating to the Company’s operations, policies or practices. The Company wishes to express its gratitude to Ms. Mahtani for her contribution to the Board.

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.

	PLUG POWER INC.

Date: June 4, 2026	By:	/s/ Paul Middleton
		Paul Middleton
		Chief Financial Officer and Chief Accounting Officer

Plug Power Inc. filed SEC Form 8-K: Leadership Update