Plug Power (PLUG) CSO details 10b5-1 stock sales and tax tenders

Rhea-AI Filing Summary

Plug Power Inc. officer and CSO & GM EMEA reported several personal transactions in the company’s common stock. On 10/10/2025, the reporting person sold 10,000 shares at $3.80 per share, and on 12/10/2025 sold an additional 40,000 shares at $2.20 per share, both noted as sales under a Rule 10b5-1 trading plan adopted on June 13, 2025. On 10/17/2025 and 11/07/2025, a total of 7,817 and 35,957 shares, respectively, were tendered to Plug Power to satisfy tax withholding obligations related to vesting of restricted stock awards at reference prices of $3.48 and $2.51 per share under the company’s 2021 Stock Option and Incentive Plan. After these transactions, the reporting person beneficially owns 373,809 Plug Power common shares directly.

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

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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^*

Haycraft Benjamin

(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)
	CSO & GM EMEA

3. Date of Earliest Transaction (Month/Day/Year)
10/10/2025

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	10/10/2025		S(1)		10,000	D	$3.8	457,583	D
Common Stock	10/17/2025		F(2)		7,817	D	$3.48(3)	449,766	D
Common Stock	11/07/2025		F(2)		35,957	D	$2.51(4)	413,809	D
Common Stock	12/10/2025		S(1)		40,000	D	$2.2	373,809	D

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. These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

2. Tendered to Issuer to satisfy tax withholding obligations of the Reporting Person incurred in connection with the vesting of the Reporting Person's restricted stock awards.

3. Pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended (the "Plan"), each share was tendered to Issuer at the price per share on the closing date of October 16, 2025.

4. Pursuant to the Plan, each share was tendered to Issuer at the price per share on the closing date of November 6, 2025.

	/s/ Gerard L. Conway, Jr., Attorney-in-Fact	12/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider stock transactions did Plug Power (PLUG) disclose in this Form 4?

The filing shows that Plug Power’s CSO & GM EMEA reported multiple transactions in common stock. These include sales of 10,000 shares on 10/10/2025 at $3.80 per share and 40,000 shares on 12/10/2025 at $2.20 per share, plus share tenders to cover tax withholding obligations.

On what dates and at what prices did the Plug Power (PLUG) officer sell shares?

The reporting person sold Plug Power common stock on two dates. On 10/10/2025, 10,000 shares were sold at $3.80 per share. On 12/10/2025, 40,000 shares were sold at $2.20 per share. These transactions are coded as S and are described as sales made pursuant to a Rule 10b5-1 trading plan.

How many Plug Power (PLUG) shares does the reporting person own after these transactions?

Following the reported sales and share tenders, the filing states that the reporting person beneficially owns 373,809 Plug Power common shares, held with direct ownership.

Why were some Plug Power (PLUG) shares tendered to the issuer instead of sold on the market?

The Form 4 explains that 7,817 shares on 10/17/2025 and 35,957 shares on 11/07/2025 were tendered to Plug Power to satisfy the reporting person’s tax withholding obligations arising from the vesting of restricted stock awards, under the Plug Power Inc. 2021 Stock Option and Incentive Plan.

What is noted about the Rule 10b5-1 trading plan in the Plug Power (PLUG) Form 4?

The filing states that the reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025. It further notes that the box may be checked to indicate that a transaction was made under a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

What role does the reporting person hold at Plug Power (PLUG)?

The reporting person is identified as an officer of Plug Power Inc., with the title CSO & GM EMEA, indicating an executive leadership position as disclosed in the relationship section of the Form 4.