Plug Power SEC Filings

Plug Power filed a prospectus supplement to register up to 185,430,464 shares of common stock that may be issued upon exercise of warrants issued under a March 19, 2025 underwriting agreement. The warrants carry a $2.00 exercise price and expire on March 20, 2028. If exercised in full for cash, the Company would receive gross proceeds of $370,860,928. The prospectus supplement allows the identified selling stockholder and its successors to resell some or all of those shares in various public or private transactions and notes that sales could be at fixed, market, negotiated or varying prices. The filing discloses that Plug Power common stock trades under the symbol PLUG and reports a last sale price of $2.18 on September 19, 2025. The document reiterates that registration does not obligate the selling stockholder to sell any or all shares and highlights related risks under the heading Risk Factors.

Benjamin Haycraft, CSO & GM of EMEA at Plug Power, reported a sale of 10,972 shares of PLUG common stock on 09/16/2025 at $1.59 per share, leaving him with 477,583 shares beneficially owned. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted on June 13, 2025. The Form 4 is signed by an attorney-in-fact on behalf of the reporting person.

Form 144 notice for PLUG POWER INC (PLUG) reports a proposed sale of 10,972 common shares through RBC Capital Markets LLC on 09/16/2025 on the NASDAQ. The filing lists an aggregate market value of $17,445.00 and indicates 1,154,840,742 shares outstanding. The shares to be sold were acquired via Restricted Stock Unit vesting on 09/22/2022 (4,424 shares), 09/22/2023 (4,425 shares) and 10/17/2023 (2,123 shares), totaling the 10,972 shares in this notice. The filer reports no securities sold in the past three months and includes the standard representation that the seller does not possess undisclosed material adverse information.

Dean Fullerton, Chief Operating Officer of Plug Power Inc. (PLUG) was awarded a stock option on 09/04/2025 to purchase 1,000,000 shares of Common Stock at an exercise price of $1.44 per share. The award was made under Plug Power's 2021 Stock Option and Incentive Plan, as amended. The option vests in three equal annual installments following the grant date, subject to the reporting person’s continued service, and expires on 09/04/2035. The Form 4 was signed by an attorney-in-fact on 09/08/2025 and reports 1,000,000 shares beneficially owned following the grant.

Plug Power Inc. reported a stock option grant to reporting person Andrew Marsh, who is identified as President and CEO and a director. The option was awarded under the companys 2021 Stock Option and Incentive Plan and gives the holder the right to buy 2,250,000 shares of common stock at an exercise price of $1.44 per share.

The grant date is 09/04/2025, the option expires 09/04/2035, and the underlying shares vest in three equal annual installments following the grant date, subject to continued service. The filing shows the position as direct ownership of the derivative security after the transaction.

Plug Power Inc. insider grant details: Chief Revenue Officer Jose Luis Crespo was awarded a stock option to purchase 1,000,000 shares of Plug Power common stock at an exercise price of $1.44 per share. The option grant has an exercise/issuance date of 09/04/2025, becomes exercisable in installments and expires on 09/04/2035.

The grant was made under Plug Power's 2021 Stock Option and Incentive Plan, as amended. The underlying shares vest in three equal annual installments following the grant date, subject to Crespo's continued service. The Form 4 was signed by an attorney-in-fact on 09/08/2025 and shows 1,000,000 derivative securities beneficially owned following the transaction, held directly.

Gerard L. Conway, Jr., who serves as General Counsel, Corporate Secretary and Executive Vice President of Plug Power Inc. (PLUG), reported a grant of 1,000,000 stock options on 09/04/2025. The options have an exercise price of $1.44 and a term expiring on 09/04/2035. The award was granted under Plug Power's 2021 Stock Option and Incentive Plan, as amended. The underlying shares will vest in three equal annual installments after the grant date, subject to the reporting person’s continued service on each vesting date. Following the grant, the reporting person beneficially owns 1,000,000 options on a direct basis.