Plug Power officer plans sale of 200,000 shares

Officer Benjamin Haycraft files a Rule 144 notice to resell up to 200,000 Plug Power common shares, tied to an option exercise and a pre-arranged Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

PLUG POWER INC (PLUG) is the issuer for a planned resale of common stock under Rule 144 by officer Benjamin Haycraft. The notice covers up to 200,000 shares of common stock, with an aggregate market value of $428,300.00, based on a market value reference of 1,397,195,278 shares outstanding as of September 18, 2026, to be sold through RBC Capital Markets LLC on Nasdaq.

The shares are to be issued via option exercise from the issuer on September 18, 2026. In the prior three months, Haycraft reported sales of 13,810 shares for $29,553.00 on September 11, 2026 and 18,750 shares for $38,625.00 on September 15, 2026. The filing states the sales are pursuant to a Rule 10b5-1 plan established June 11, 2026.

Key Figures

Shares to be sold under Rule 144: 200,000 shares Aggregate market value of shares to be sold: $428,300.00 Shares outstanding reference: 1,397,195,278 shares +4 more

7 metrics

Shares to be sold under Rule 144 200,000 shares Maximum Plug Power common shares covered by the Form 144 notice

Aggregate market value of shares to be sold $428,300.00 Stated value for the 200,000 Plug Power shares in the notice

Shares outstanding reference 1,397,195,278 shares Plug Power common shares outstanding as of September 18, 2026, provided as a market value reference

Prior sale on September 11, 2026 13,810 shares for $29,553.00 Plug Power shares sold by Benjamin Haycraft in the past three months

Prior sale on September 15, 2026 18,750 shares for $38,625.00 Plug Power shares sold by Benjamin Haycraft in the past three months

Rule 10b5-1 plan establishment date June 11, 2026 Date the pre-arranged trading plan governing these sales was established

Planned sale date for new shares September 18, 2026 Date of option exercise and planned sale for the 200,000 shares

Key Terms

Rule 144, Rule 10b5-1 plan, option exercise, aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Rule 10b5-1 plan regulatory

"SOLD PURSUANT TO A RULE 10B5-1 PLAN ESTABLISHED 6-11-26"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

option exercise financial

"COMMON | 09/18/2026 | OPTION EXERCISE | ISSUER"

aggregate market value financial

"200000 | 428300.00 | 1397195278 | 09/18/2026"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What is PLUG POWER INC (PLUG) disclosing in this Form 144 filing?

The filing reports a planned Rule 144 resale of Plug Power common stock by officer Benjamin Haycraft, covering up to 200,000 shares to be sold through RBC Capital Markets LLC on Nasdaq, related to an option exercise from the issuer dated September 18, 2026.

How many PLUG shares does Benjamin Haycraft plan to sell under Rule 144?

Benjamin Haycraft plans to sell up to 200,000 shares of Plug Power common stock under Rule 144. The filing lists an aggregate market value of $428,300.00 for these shares, with the shares to be sold through RBC Capital Markets LLC.

What prior Plug Power (PLUG) stock sales has Benjamin Haycraft reported in the last three months?

In the past three months, Haycraft reported two Plug Power stock sales: 13,810 shares for $29,553.00 on September 11, 2026, and 18,750 shares for $38,625.00 on September 15, 2026. These are listed as prior sales in the Form 144 notice.

Is the planned PLUG share sale under a Rule 10b5-1 trading plan?

Yes. The remarks state the Plug Power share sales are sold pursuant to a Rule 10b5-1 plan established June 11, 2026. A Rule 10b5-1 plan is a pre-arranged trading plan for selling securities over time under specified conditions.

What does the Form 144 say about Plug Power (PLUG) shares outstanding?

The Form 144 lists a market value reference of 1,397,195,278 Plug Power common shares outstanding as of September 18, 2026. This figure provides context for the Rule 144 resale but is not the number of shares being sold.

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

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Available on EDGAR 09/18/2026 - 11:20 AM Accepted by SEC EDGAR 09/18/2026 - 11:20 AM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002085249
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	PLUG POWER INC
SEC File Number	001-34392
Address of Issuer	125 VISTA BOULEVARD SLINGERLANDS NEW YORK 12159
Phone	5187827700
Name of Person for Whose Account the Securities are To Be Sold	Haycraft Benjamin
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	200000	428300.00	1397195278	09/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
COMMON	09/18/2026	OPTION EXERCISE	ISSUER			200000	09/18/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
BENJAMIN HAYCRAFT C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL MINNEAPOLIS MN 55401	PLUG POWER INC	09/11/2026	13810	29553.00
BENJAMIN HAYCRAFT C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL MINNEAPOLIS MN 55401	PLUG POWER INC	09/15/2026	18750	38625.00

144: Remarks and Signature

Remarks	SOLD PURSUANT TO A RULE 10B5-1 PLAN ESTABLISHED 6-11-26
Date of Notice	09/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/11/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	POA / JEFFREY EISCHENS
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)