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Plug Power Inc (NASDAQ:PLUG)
US · Delayed Price · Currency is USD
Also listed: PLUN.DE, 0R1J.L, 0R1J.IL, PLUN.FIndustrials · Electrical Equipment & Parts
1.39+0.01 (+0.73%)
Insider Score
––Not scored
PLUG Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
PLUG Stock Insider Trading Activity
PLUG stock’s insider trading shows 5 sales on the open market for an estimated $671.20K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Haycraft Benjamin Other | Sell | 9,375 | $1.41 | $13.22K | 9.3% | 91,874 | Oct 15, 2026 | — | Form 4 |
| Joggerst Patrick Director | Award | 11,598 | $1.94 | $22.50K | 4.6% | 264,782 | Oct 1, 2026 | — | Form 4 |
| Kenausis Gregory Director | Award | 5,928 | $1.94 | $11.50K | 1.2% | 520,340 | Oct 1, 2026 | — | Form 4 |
| Angle Colin M Director | Award | 6,121 | $1.94 | $11.87K | 4.0% | 159,223 | Oct 1, 2026 | — | Form 4 |
| BONNEY MARK J Director | Award | 12,242 | $1.94 | $23.75K | 4.5% | 283,772 | Oct 1, 2026 | — | Form 4 |
| Haycraft Benjamin Other | Sell | 200,000 | $2.14 | $428.30K | 66.4% | 101,249 | Sep 18, 2026 | — | Form 4 |
| Haycraft Benjamin Other | Sell | 18,750 | $2.06 | $38.63K | 5.9% | 301,249 | Sep 15, 2026 | — | Form 4 |
| Haycraft Benjamin Other | Sell | 13,810 | $2.14 | $29.55K | 4.1% | 319,999 | Sep 11, 2026 | — | Form 4 |
| Angle Colin M Director | Award | 3,558 | $2.71 | $9.64K | 2.4% | 153,102 | Jul 1, 2026 | — | Form 4 |
| Kenausis Gregory Director | Award | 3,980 | $2.71 | $10.79K | 0.8% | 514,412 | Jul 1, 2026 | — | Form 4 |
| Joggerst Patrick Director | Award | 7,644 | $2.71 | $20.72K | 3.1% | 253,184 | Jul 1, 2026 | — | Form 4 |
| BONNEY MARK J Director | Award | 8,764 | $2.71 | $23.75K | 3.3% | 271,530 | Jul 1, 2026 | — | Form 4 |
| MIDDLETON PAUL B CFO | Award | 389,105 | — | — | 15.2% | 2,947,169 | Jun 25, 2026 | — | Form 4 |
| WILLIS GARY K Director | Award | 39,753 | — | — | 5.8% | 730,107 | Jun 11, 2026 | — | Form 4 |
| BONNEY MARK J Director | Award | 39,753 | — | — | 17.8% | 262,766 | Jun 11, 2026 | — | Form 4 |
| Angle Colin M Director | Award | 39,753 | — | — | 36.2% | 149,544 | Jun 11, 2026 | — | Form 4 |
| HELMER MAUREEN O Director | Award | 39,753 | — | — | 12.4% | 361,318 | Jun 11, 2026 | — | Form 4 |
| Joggerst Patrick Director | Award | 39,753 | — | — | 19.3% | 245,540 | Jun 11, 2026 | — | Form 4 |
| Kenausis Gregory Director | Award | 39,753 | — | — | 8.4% | 510,432 | Jun 11, 2026 | — | Form 4 |
| MCNAMEE GEORGE C Director | Award | 39,753 | — | — | 4.8% | 873,282 | Jun 11, 2026 | — | Form 4 |
| HELMER MAUREEN O Director | Sell | 50,000 | $3.23 | $161.50K | 13.5% | 321,565 | Jun 8, 2026 | — | Form 4 |
| BONNEY MARK J Director | Award | 10,509 | $2.26 | $23.75K | 4.9% | 223,013 | Apr 1, 2026 | — | Form 4 |
| Kenausis Gregory Director | Award | 8,712 | $2.26 | $19.69K | 1.9% | 470,679 | Apr 1, 2026 | — | Form 4 |
| Mahtani Kavita Director | Award | 9,956 | $2.26 | $22.50K | 4.3% | 239,847 | Apr 1, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.