Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 14 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Oct. 2, 2008 PLUG A 1,402 · · 12,093 Direct +13.11% Acquired (price as of 2026-10-06)
July 2, 2008 PLUG A 1,815 · · 10,691 Direct +20.45% Acquired (price as of 2026-10-06)
May 21, 2008 PLUG A 10,000 · · 35,000 Direct +40.00% Acquired (price as of 2026-10-06)
April 3, 2008 PLUG A 1,359 · · 8,876 Direct +18.08% Acquired (price as of 2026-10-06)
Jan. 3, 2008 PLUG A 1,083 · · 7,517 Direct +16.83% Acquired (price as of 2026-10-06)
Oct. 4, 2007 PLUG A 1,420 · · 6,434 Direct +28.32% Acquired (price as of 2026-10-06)
July 2, 2007 PLUG A 1,376 · · 5,014 Direct +37.82% Acquired (price as of 2026-10-06)
May 17, 2007 PLUG A 10,000 · · 25,000 Direct +66.67% Acquired (price as of 2026-10-06)
April 19, 2007 PLUG A 1,363 · · 3,638 Direct +59.91% Acquired (price as of 2026-10-06)
Jan. 8, 2007 PLUG A 1,167 · · 2,275 Direct +105.32% Acquired (price as of 2026-10-06)
Oct. 2, 2006 PLUG A 1,108 · · 1,108 Direct · Acquired (price as of 2026-10-06)
June 29, 2006 PLUG A 15,000 · · 15,000 Direct · Acquired (price as of 2026-10-06)
June 29, 2006 PLUG A 15,000 · · 15,000 Direct · Acquired (price as of 2026-10-06)
June 29, 2006 PLUG A 15,000 $4.74 $71,100 15,000 Direct · Acquired -96.1% (price as of 2026-10-06)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
May 21, 2008 PLUG Option to Purchase Common Stock Common Stock (10,000) $3.21 May 21, 2018 10,000 Acquired
May 17, 2007 PLUG Option to Purchase Common Stock Common Stock (10,000) $2.98 May 17, 2017 10,000 Acquired
June 29, 2006 PLUG Option to Purchase Common Stock Common Stock (15,000) $4.74 June 29, 2016 15,000 Acquired
June 29, 2006 PLUG Option to Purchase Common Stock Common Stock (15,000) $4.74 June 29, 2016 15,000 Acquired
June 29, 2006 PLUG Option to Purchase Common Stock Common Stock (15,000) $4.74 June 29, 2016 15,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
June 30, 2006 PLUG No Securities are Beneficially Owned 0 Direct