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): April 5, 2017

PLUG POWER INC.

(Exact name of registrant as specified in charter)

Delaware		1-34392		22-3672377
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer 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)

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))

Item 8.01. Other Events.

On April 5, 2017, all of the outstanding shares of Plug Power Inc.’s series D convertible preferred stock, par value $0.01 per share (“Series D Stock”), were converted into an aggregate of 9,548,393 shares of Plug Power Inc.’s common stock, par value $0.01 per share. The conversion was done at the election of the sole holder of the Series D Stock in accordance with the terms of the Series D Stock. No shares of Series D Stock remain outstanding.

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: April 6, 2017	By:	/s/ Andrew Marsh
		Name: Andrew Marsh
		Title: Chief Executive Officer