Plug Power
Builds fuel cells, electrolyzers, and infrastructure for producing and delivering hydrogen.
$2.20
After-hours close+0.01 (+0.46%)
At close$2.19(−3.52%)
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Breakdown13F · Form 4
Institutions 59.42%828.96M sharesInsiders 0.59%8.28M sharesOther 39.99%557.83M shares
Shares outstanding 1.40B · Float 1.33B · 95.4% free float
Institutions13F, as of Jun 30, 2026
541 holders · 828.96M shares · 94 new positions · 280 increased · 109 reduced · 52 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 184.03M | 13.19% | +31.94M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 66.18M | 4.74% | +6.57M | Aug 13, 2026 |
| Vanguard Capital Management LLC | 62.94M | 4.51% | +386.6K | Aug 13, 2026 |
| State Street Corp | 38.76M | 2.78% | +2.21M | Aug 7, 2026 |
| Geode Capital Management, LLC | 36.56M | 2.62% | +1.85M | Aug 12, 2026 |
| UBS Group AG | 33.13M | 2.37% | −8.47M | Aug 13, 2026 |
| Citadel Advisors LLC | 24.15M | 1.73% | +23.29M | Aug 14, 2026 |
| Two Sigma Investments, LP | 22.61M | 1.62% | −4.79M | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 10.50% | 146.97M | 13G | Apr 7, 2026 ↗ |
| Norges Bank (The Central Bank of Norway) | 7.95% | 879.64M | 13G | Oct 10, 2024 ↗ |
| Vanguard Capital Management | 5.23% | 73.04M | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Paul B. Middleton | officer: CFO & Executive VP | 2.95M | 0.21% | Jun 29, 2026 |
| George C. Mcnamee | director | 873.3K | 0.06% | Jun 16, 2026 |
| Andrew Marsh | director | 853.4K | 0.06% | Apr 10, 2026 |
| Gary K. Willis | director | 730.1K | 0.05% | Jun 16, 2026 |
| Gregory Kenausis | director | 514.4K | 0.04% | Jul 6, 2026 |
| Maureen O. Helmer | director | 361.3K | 0.03% | Jun 16, 2026 |
| Benjamin Haycraft | officer: CSO & GM EMEA | 333.8K | 0.02% | Jan 14, 2026 |
| Jose Luis Crespo | officer: See Remarks | 307.3K | 0.02% | Dec 17, 2025 |
| Mark J. Bonney | director | 271.5K | 0.02% | Jul 6, 2026 |
| Gerard L. JR Conway | officer: Gen. Coun, Corp Sec., Exec. VP | 259.5K | 0.02% | May 7, 2025 |
4 ten-percent owners hold 11.04M shares by Form 4, outside the officers-and-directors figure above · 35 people have not refiled in the last 18 months (11.52M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 8, 2026 | Maureen O. Helmerdirector | Sale | 50,000 | $3.23 | 321,565 |
| Jan 12, 2026 | Benjamin Haycraftofficer: CSO & GM EMEA | Sale | 40,000 | $2.17 | 333,809 |
| Dec 15, 2025 | Jose Luis Crespoofficer: See Remarks | Purchase | 37,300 | $2.34 | 307,332 |
| Dec 10, 2025 | Benjamin Haycraftofficer: CSO & GM EMEA | Sale | 40,000 | $2.20 | 373,809 |
| Oct 10, 2025 | Benjamin Haycraftofficer: CSO & GM EMEA | Sale | 10,000 | $3.80 | 457,583 |
| Nov 10, 2025 | Benjamin Haycraftofficer: CSO & EVP of EMEA Region | Sale | 10,000 | $2.92 | 467,583 |
| Sep 16, 2025 | Benjamin Haycraftofficer: CSO & GM of EMEA Region | Sale | 10,972 | $1.59 | 477,583 |
CongressHouse and Senate disclosures
Not reported.