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): August 9, 2018

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)

Registrant’s telephone number, including area code: (518) 782-7700

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):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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 o

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. o

Item 2.02. Results of Operations and Financial Condition.

On August 9, 2018, Plug Power Inc., a Delaware corporation (the “Registrant”), released its financial results for the quarter ended June 30, 2018 by posting its Second Quarter 2018 Shareholder Letter on its website. The full text of the shareholder letter is attached hereto as Exhibit 99.1 and is incorporated by reference in this Item 2.02.

The information in this Current Report on Form 8-K (including the exhibits) is furnished pursuant to Item 2.02 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number		Title

99.1		Plug Power Inc. Second Quarter 2018 Shareholder Letter dated August 9, 2018

SIGNATURE

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: August 9, 2018	By:	/s/ Paul Middleton
	Name:	Paul Middleton
	Title:	Chief Financial Officer