Adrian J Corless
CIK 1484979 · View on SEC EDGAR ↗
First SEC filing: Feb. 25, 2010 · Latest: Feb. 25, 2010
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Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 25, 2010 | PLUG | P | 20,000 | $0.74 | $14,800 | 103,729 Direct | +23.89% | Acquired | -70.9% (price as of 2026-08-19) |
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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| July 24, 2013 | PLUG | Restricted Stock Units | Common Stock (50,000) | — | July 24, 2023 | 33,334 | Acquired |
| July 24, 2013 | PLUG | Common Stock | Common Stock (200,000) | $0.37 | July 24, 2023 | 200,000 | Acquired |
| Dec. 13, 2011 | PLUG | Employee Stock Option | Common Stock (50,000) | $2.17 | Dec. 13, 2021 | 50,000 | Acquired |
| April 13, 2011 | PLUG | Option to Purchase Common Stock | Common Stock (410,000) | $0.61 | April 13, 2021 | 410,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 25, 2010 | PLUG | Plug Power Common Stock | 83,729 | Direct |
| Feb. 25, 2010 | PLUG | Options to Purchase Common Stock→ Plug Power Common Stock | — | Direct |
| Feb. 25, 2010 | PLUG | Options to Purchase Common Stock→ Plug Power Common Stock | — | Direct |
| Feb. 25, 2010 | PLUG | Options to Purchase Common Stock→ Plug Power Common Stock | — | Direct |