Plug Power (PLUG) President & Chief Revenue Officer reports stock purchase

Rhea-AI Filing Summary

Plug Power Inc. officer and President & Chief Revenue Officer reported buying company stock. On 12/15/2025, the reporting person purchased 37,300 shares of Plug Power common stock at a price of $2.34 per share in an open market transaction coded as a purchase.

This trade was made under a Rule 10b5-1 trading plan that was adopted on March 13, 2025. After this transaction, the reporting person beneficially owned 307,332 shares of Plug Power common stock directly, and also held 61,300 shares in Plug Power Inc.'s 401(k) plan based on a plan statement as of December 17, 2025.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Crespo Jose Luis

(Last) (First) (Middle)

C/O PLUG POWER INC.

125 VISTA BOULEVARD

(Street)

SLINGERLANDS NY 12159

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

4. If Amendment, Date of 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

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
Common Stock	12/15/2025		P(1)		37,300	A	$2.34	307,332	D
Common Stock								61,300	I	By 401(k) Plan(2)

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 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This purchase was effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on March 13, 2025.

2. The Reporting Person holds 61,300 shares of common stock in Plug Power Inc.'s 401(k) plan. The information in this report is based on a plan statement as of December 17, 2025.

Remarks:

President & Chief Revenue Officer

	/s/ Gerard L. Conway, Jr., Attorney-in-Fact	12/17/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Plug Power (PLUG) report in this Form 4?

The filing shows that a Plug Power officer purchased 37,300 shares of Plug Power common stock on 12/15/2025 at a price of $2.34 per share in an open market purchase.

Who is the reporting person in this Plug Power (PLUG) insider trade?

The reporting person is an officer of Plug Power Inc., serving as President & Chief Revenue Officer, as noted in the remarks section.

Was the Plug Power (PLUG) insider trade made under a Rule 10b5-1 plan?

Yes. The purchase was effected pursuant to a Rule 10b5-1 trading plan adopted on March 13, 2025, as disclosed in the explanation of responses.

How many Plug Power (PLUG) shares does the insider own after this transaction?

Following the reported purchase, the insider beneficially owned 307,332 shares of Plug Power common stock directly and 61,300 shares through Plug Power Inc.'s 401(k) plan, based on a plan statement as of December 17, 2025.

What type of securities were involved in this Plug Power (PLUG) Form 4 filing?

The filing reports activity only in non-derivative securities, specifically Plug Power common stock. The table for derivative securities shows no transactions.

Is this Plug Power (PLUG) Form 4 filed by one or multiple reporting persons?

The document indicates that the Form 4 is filed by one reporting person, as the box for a single filer is checked.