Plug Power officer sells 32,560 shares in September

Plug Power’s CSO & GM EMEA reported selling 32,560 shares in September 2026 under a pre-arranged Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

PLUG POWER INC (PLUG) reported that officer Benjamin Haycraft, its CSO & GM EMEA, sold company common stock in two open-market transactions. He sold 18,750 shares at $2.06 per share on September 15, 2026 and 13,810 shares at $2.14 per share on September 11, 2026, totaling 32,560 shares. A footnote states these sales were made under a Rule 10b5-1 trading plan adopted on June 11, 2026.

Insider Trade Summary 10b5-1

Net Seller: 32,560 shares

Net Sell 2 txns

Insider Haycraft Benjamin

Role CSO & GM EMEA

Sold 32,560 shs ($68K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	18,750	$2.06	$39K
Sale	Common Stock F1	13,810	$2.14	$30K

Holdings After Transaction: Common Stock — 301,249 shares (Direct)

Footnotes (1)

1. F1. These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 11, 2026.

Key Figures

Shares sold September 15, 2026: 18,750 shares Price per share September 15, 2026: $2.06 per share Shares sold September 11, 2026: 13,810 shares +3 more

6 metrics

Shares sold September 15, 2026 18,750 shares Common stock sale reported for September 15, 2026 by Benjamin Haycraft

Price per share September 15, 2026 $2.06 per share Sale price for 18,750 shares of common stock on September 15, 2026

Shares sold September 11, 2026 13,810 shares Common stock sale reported for September 11, 2026 by Benjamin Haycraft

Price per share September 11, 2026 $2.14 per share Sale price for 13,810 shares of common stock on September 11, 2026

Total shares sold 32,560 shares Aggregate of reported common stock sales (18,750 plus 13,810 shares)

Rule 10b5-1 plan adoption date June 11, 2026 Date the trading plan covering these sales was adopted

Key Terms

Rule 10b5-1 trading plan, open market, private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 11, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open market financial

"Sale in open market or private transaction"

An open market is a system where buying and selling of goods, services, or financial assets happen freely without restrictions or special controls. For investors, it means they can trade assets easily and quickly, which helps determine fair prices based on supply and demand. This environment encourages transparency and competition, making it easier to buy or sell with confidence.

private transaction financial

"Sale in open market or private transaction"

A private transaction is the sale or transfer of securities, assets, or ownership stakes carried out directly between a small number of parties rather than on a public exchange. For investors it matters because these deals are less visible and often less liquid than public trades, so pricing can be harder to verify, the investment can be harder to sell quickly, and buyers or sellers may gain strategic advantages not available in open markets — like negotiated terms similar to a private garage sale versus a crowded marketplace.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did PLUG report for Benjamin Haycraft in this Form 4?

The filing reports that Benjamin Haycraft, CSO & GM EMEA of PLUG, sold a total of 32,560 shares of Plug Power common stock in two open-market transactions during September 2026.

How many Plug Power (PLUG) shares did Benjamin Haycraft sell on September 15, 2026?

On September 15, 2026, Benjamin Haycraft sold 18,750 shares of Plug Power common stock at a price of $2.06 per share in an open-market or private transaction.

How many Plug Power (PLUG) shares did Benjamin Haycraft sell on September 11, 2026?

On September 11, 2026, Benjamin Haycraft sold 13,810 shares of Plug Power common stock at a price of $2.14 per share in an open-market or private transaction.

Were Benjamin Haycraft’s PLUG share sales made under a Rule 10b5-1 trading plan?

Yes. A footnote explains that these sales by Benjamin Haycraft were effected pursuant to a Rule 10b5-1 trading plan adopted on June 11, 2026, indicating they followed a pre-arranged trading schedule.

What is the total number of Plug Power (PLUG) shares sold by Benjamin Haycraft in this Form 4?

Across the reported transactions, Benjamin Haycraft sold a total of 32,560 shares of Plug Power common stock, combining 18,750 shares sold on September 15, 2026 and 13,810 shares sold on September 11, 2026.

Does the Form 4 show how many Plug Power (PLUG) shares Benjamin Haycraft holds after these sales?

The reported transactions list the shares sold and the prices, but they do not state a post-transaction share balance for Benjamin Haycraft in this data.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/15/2026 - 04:27 PM Accepted by SEC EDGAR 09/15/2026 - 04:26 PM Learn about SEC filing dates

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^*

Haycraft Benjamin

(Last) (First) (Middle)

C/O PLUG POWER INC.

125 VISTA BOULEVARD

(Street)

SLINGERLANDS NEW YORK 12159

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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	09/11/2026		S(1)		13,810	D	$2.14	319,999	D
Common Stock	09/15/2026		S(1)		18,750	D	$2.06	301,249	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 11, 2026.

	/s/ Gerard L. Conway, Jr., Attorney-in-Fact	09/15/2026
	** 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.
* Form 4: SEC 1474 (03-26)