Edgar Filing: PLUG POWER INC

Ownership Submission

FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

GARBERDING LARRY

2. Issuer Name and Ticker or Trading Symbol
PLUG POWER INC [PLUG]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

__X__ Director	_____ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

(Last)

(First)

(Middle)

968 ALBANY SHAKER ROAD

3. Date of Earliest Transaction (Month/Day/Year)
09/20/2011

(Street)

LATHAM, NY 12110

4. If Amendment, Date Original Filed(Month/Day/Year)

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date
(Month/Day/Year)

7. Title and Amount of Underlying Securities
(Instr. 3 and 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Option to Purchase Plug Power Common Stock

$ 1.93

09/20/2011

65,000 ⁽¹⁾

⁽²⁾

09/20/2021

Plug Power Common Stock

65,000

$ 0

92,500 ⁽³⁾ ⁽⁴⁾

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
GARBERDING LARRY 968 ALBANY SHAKER ROAD LATHAM, NY 12110	X

Signatures

/s/ Gerard L. Conway, Jr., Attorney in Fact		09/30/2011
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Awarded pursuant to Plug Power's 2011 Stock Option and Incentive Plan.
(2)	Consists of an option to acquire common stock granted on September 20, 2011 with respect to which: 21,667 shares will become exercisable on September 20, 2012; 21,667 shares will become exercisable on September 20, 2013; 21,666 shares will become exercisable on September 20, 2014.
(3)	Existing stock options held by the reporting person have been adjusted to reflect the May 19, 2011 1-for-10 reverse stock split as follows: 1,000 granted on 5/16/2002 exercise price $102.30; 500 granted on 5/16/2002 exercise price $102.30; 1,500 granted on 5/22/2003 exercise price $50.20; 1,500 granted on 5/20/2004 exercise price $75.00; 1,500 granted on 6/1/2005 exercise price $62.20; 1,500 granted on 6/28/2006 exercise price $46.40; 1,500 granted on 5/17/2007 exercise price $29.80; 1,500 granted on 5/21/2008 exercise price $32.10; 1,500 granted on 5/20/2009 exercise price $9.50; 12,500 granted on 5/20/2009 exercise price $9.50; 1,500 granted on 5/19/2010 exercise price $4.80; 1,500 granted on 5/12/2011 exercise price $5.10.
(4)	This total also accounts for 1,500 options that expired on May 16, 2011.

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