Andrew Marsh - 02 Mar 2026 Form 4 Insider Report for PLUG POWER INC (PLUG)

Reporting relationship: Director
Issuer ticker: PLUG
Reported as of: 02 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Jun 2026, 18:54:13 UTC
Prior SEC filing: 03 Dec 2025
Next SEC filing: 10 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Gerard L. Conway, Jr., Attorney-in-Fact

Key filing fact

Andrew Marsh filed Form 4 for PLUG POWER INC (PLUG) on 16 Jun 2026.

Key facts

This page summarizes Andrew Marsh's Form 4 filing for PLUG POWER INC (PLUG).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 16 Jun 2026, 18:54.

Change

Previous filing in this sequence was filed on 03 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001431827 Primary reporting owner

Marsh Andrew

Relationship: Director
Address: C/O PLUG POWER INC., 125 VISTA BOULEVARD, SLINGERLANDS
Signature: /s/ Gerard L. Conway, Jr., Attorney-in-Fact
Signature date: 16 Jun 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

PLUG transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +163,638
Change %
Price: $0.000000^*
Shares after: 163,638
Date: 02 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 163,638
Exercise price: $1.81
Footnotes: F1, F2

PLUG transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value
Shares: +87,260
Change %
Price: $0.000000^*
Shares after: 87,260
Date: 31 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 87,260
Exercise price: $2.26
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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

Footnote F2

Stock option issued pursuant to the previously disclosed Non-Executive Chairman Agreement, pursuant to which the Reporting Person received an initial, one-time equity award. The shares underlying this stock option shall vest in full on March 2, 2027, subject to the Reporting Person's continued service on such vesting date.

Footnote F3

Stock option issued pursuant to the previously disclosed Transitional Consulting Agreement, pursuant to which the Reporting Person is entitled to receive a quarterly equity award during the term of the agreement. The shares underlying this stock option shall vest in three equal annual installments commencing on the first anniversary of the grant date, subject to the Reporting Person's continued service through each applicable vesting date.