Plug Power
PLUG · NASDAQ
$1.40+$0.03 (+2.19%)TodayMarket closed ·
Prev close $1.37
Who owns PLUG
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 38.4% of PLUG’s shares.
- BlackRock Institutional Trust Company, N.A.8.9%
- Vanguard Portfolio Management, LLC4.7%
- Vanguard Capital Management, LLC4.5%
- SK Inc.3.9%
- Next 6 largest institutions16.2%
- All other shareholders61.6%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 124.82M | 8.95% |
| Vanguard Portfolio Management, LLC | 66.18M | 4.74% |
| Vanguard Capital Management, LLC | 62.94M | 4.51% |
| SK Inc. | 54.97M | 3.94% |
| BlackRock Advisors (UK) Limited | 48.67M | 3.49% |
| BlackRock Asset Management Ireland Limited | 45.95M | 3.29% |
| State Street Investment Management (US) | 38.76M | 2.78% |
| Geode Capital Management, L.L.C. | 36.56M | 2.62% |
| UBS Financial Services, Inc. | 32.14M | 2.30% |
| Citadel Advisors LLC | 24.15M | 1.73% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Global Clean Energy Transition UCITS ETF | 46.29M | 3.32% |
| Vanguard Total Stock Market Index Fund | 44.53M | 3.19% |
| iShares Russell 2000 ETF | 35.48M | 2.54% |
| Vanguard Small-Cap Index Fund | 32.08M | 2.30% |
| iShares Global Clean Energy ETF | 28.84M | 2.07% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $658.10K (4 trades) of PLUG on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Angle Colin M | Award | 6.12K | $11.87K |
| Kenausis Gregory | Award | 5.93K | $11.50K |
| Joggerst Patrick | Award | 11.60K | $22.50K |
| BONNEY MARK J | Award | 12.24K | $23.75K |
| Marsh Andrew | Award | 101.70K | — |
| Haycraft Benjamin | Sale | 200.00K | $428.30K |
| Haycraft Benjamin | Sale | 18.75K | $38.62K |
| Haycraft Benjamin | Sale | 13.81K | $29.55K |
| Kenausis Gregory | Award | 3.98K | $10.79K |
| Joggerst Patrick | Award | 7.64K | $20.72K |
Short interest
Settled Sep 30, 2026
- Shares short
- 284.62M
- Days to cover
- 5.84
- % of shares outstanding
- 20.40%
- Average daily volume
- 48.71M
- Change since last report
- −0.9%
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