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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Marsh Andrew
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
__X__ Officer (give title below)    _____ Other (specify below)
President & CEO
(Last)          (First)          (Middle)

C/O PLUG POWER INC., 968 ALBANY SHAKER ROAD
3. Date of Earliest Transaction (MM/DD/YYYY)

2/18/2020
(Street)

LATHAM, NY 12110
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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
Plug Power Common Stock 2/18/2020  M  200000 A$0.37 769557 D  
Plug Power Common Stock 2/18/2020  M  115964 A$1.72 885521 D  
Plug Power Common Stock 2/18/2020  S  315964 (1)D$5.00 569557 D  
Plug Power Common Stock 2/19/2020  M  200000 A$2.17 769557 D  
Plug Power Common Stock 2/19/2020  M  234036 A$1.72 1003593 D  
Plug Power Common Stock 2/19/2020  S  834036 (1)D$5.1006 (2)169557 D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy) (3)$0.37 2/18/2020  M     200000   (4)7/24/2023 Common Stock 200000 $0 0 (3)D  
Stock Option (right to buy) $1.72 2/18/2020  M     115964   (4)8/9/2026 Common Stock 115964 $0 821536 D  
Stock Option (right to buy) $2.17 2/19/2020  M     200000   (4)12/13/2021 Common Stock 200000 $0 0 D  
Stock Option (right to buy) $1.72 2/19/2020  M     234036   (4)8/9/2026 Common Stock 234036 $0 587500 D  

Explanation of Responses:
(1) Shares sold pursuant to a pre-established 10b5-1 trading plan.
(2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.00 to $5.26, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.
(3) The Form 4 filed on July 29, 2013 included an incorrect title of derivative security (Common Stock) and an incorrect number of derivative securities beneficially owned (561,850).
(4) The stock option granted to the reporting person is fully vested and exercisable as of the date hereof.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Marsh Andrew
C/O PLUG POWER INC.
968 ALBANY SHAKER ROAD
LATHAM, NY 12110
X
President & CEO

Signatures
/s/ Gerard L. Conway, Jr., Attorney in Fact2/24/2020
**Signature of Reporting PersonDate

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