SEC Form 4 · accession 0001104659-26-078982
PLUG POWER INC · PLUG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Paul B Middleton
Officer — CFO & Executive VP
Period of report
Jun 25, 2026
Accepted (ET)
Jun 29, 2026 · 7:17 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001093691
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jun 25, 2026 | A | 389,105 | $0.00 | A | 2,947,169 | D | |
| Common StockF2 | holding | — | — | — | 64,492 | I | 401(k) Plan |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F3,F4 | $2.57 | Jun 25, 2026 | A | 510,204 | A | — | Jun 25, 2036 | Common Stock | 510,204 | 510,204 | D |
Explanation of responses
- F1Consists of a restricted stock award made pursuant to the Plug Power Inc. 2021 Stock Option and Incentive Plan, as amended. The restricted shall vest in three equal annual installments following the grant date, subject to the Reporting Person's continued service on each such vesting date.
- F2The Reporting Person holds 64,492 shares of common stock in Plug Power Inc.'s 401(k) plan. The information in this report is based on a plan statement as of June 29, 2026.
- F3Awarded pursuant to Plug Power Inc.'s 2021 Stock Option and Incentive Plan, as amended.
- F4The 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.