Plug Power (PLUG) insider receives two long-dated stock option grants

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Plug Power Inc. officer Jose Luis Crespo received two large stock option awards as equity compensation. On June 25, 2026, he was granted stock options to buy 777,202 shares of common stock at an exercise price of $2.83 per share and a separate grant for 765,306 shares at an exercise price of $2.57 per share. Both option awards were granted under Plug Power Inc.'s 2021 Stock Option and Incentive Plan and expire on June 25, 2036. The options vest in three equal annual installments after the grant date, conditioned on his continued service, and represent an acquisition of derivative securities rather than any open‑market stock purchase or sale.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Crespo Jose Luis

Role See Remarks

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	765,306	$0.00	--
Grant/Award	Stock Option (Right to Buy)	777,202	$0.00	--

Holdings After Transaction: Stock Option (Right to Buy) — 765,306 shares (Direct, null)

Footnotes (1)

Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended. The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

Key Figures

Option grant size 1: 777,202 options Exercise price 1: $2.83 per share Option grant size 2: 765,306 options +4 more

7 metrics

Option grant size 1 777,202 options Stock Option (Right to Buy) granted June 25, 2026

Exercise price 1 $2.83 per share Exercise price for 777,202-option grant

Option grant size 2 765,306 options Second Stock Option (Right to Buy) granted June 25, 2026

Exercise price 2 $2.57 per share Exercise price for 765,306-option grant

Expiration date June 25, 2036 Expiration for both option awards

Underlying shares 1 777,202 shares Underlying common stock for first option grant

Underlying shares 2 765,306 shares Underlying common stock for second option grant

Key Terms

Stock Option (Right to Buy), 2021 Stock Option and Incentive Plan, vesting, underlying security

4 terms

Stock Option (Right to Buy) financial

"security_title: Stock Option (Right to Buy)"

2021 Stock Option and Incentive Plan financial

"Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended."

vesting financial

"shares underlying this stock option shall vest in three equal annual installments"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

underlying security financial

"underlying_security_title: Common Stock; underlying_security_shares specified"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/29/2026 - 07:14 PM Accepted by SEC EDGAR 06/29/2026 - 07:14 PM

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).

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

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)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)⁽¹⁾	$2.57	06/25/2026		A		765,306		⁽²⁾	06/25/2036	Common Stock	765,306	$0.00	765,306	D
Stock Option (Right to Buy)⁽¹⁾	$2.83	06/25/2026		A		777,202		⁽²⁾	06/25/2036	Common Stock	777,202	$0.00	777,202	D

Explanation of Responses:

1. Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.

2. The shares underlying this stock option shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.

Remarks:

President & Chief Revenue Officer

	/s/ Gerard L. Conway, Jr., Attorney-in-Fact	06/29/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Jose Luis Crespo report at Plug Power (PLUG)?

Jose Luis Crespo reported receiving two stock option awards from Plug Power as equity compensation. The grants cover 777,202 and 765,306 underlying common shares, giving him rights to buy stock at preset exercise prices rather than involving any open-market share purchases or sales.

What are the exercise prices of Jose Luis Crespo’s new Plug Power stock options?

Crespo’s new Plug Power stock options have exercise prices of $2.83 and $2.57 per share. These prices represent what he must pay to buy common stock under each option grant if and when he chooses to exercise them before expiration.

When do Jose Luis Crespo’s Plug Power stock options expire?

Both Plug Power stock option awards to Jose Luis Crespo expire on June 25, 2036. This long-dated expiration gives him a multi-year window to potentially exercise the options, provided the vesting conditions and continued service requirements are satisfied over time.

How do Jose Luis Crespo’s new Plug Power options vest over time?

The options vest in three equal annual installments following the June 25, 2026 grant date. Vesting is conditioned on Crespo’s continued service with Plug Power on each vesting date, aligning his equity compensation with ongoing employment and company performance over several years.

Were Jose Luis Crespo’s Plug Power option grants part of a formal incentive plan?

Yes. The footnotes state the awards were granted under Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended. This indicates the options are structured compensation issued pursuant to the company’s established equity incentive program rather than ad hoc arrangements.