| $250M | ||
| $208M | ||
| $109M | ||
| $101M | ||
| $94M | ||
| $70M |
Buys | $922,425 | 2 | 40 |
Sells | $93,871 | 3 | 60 |
| MIDDLETON PAUL B | CFO & Executive VP | 2 | $922,425 | 0 | $0 | $922,425 |
| MCNAMEE GEORGE C | director | 0 | $0 | 2 | $44,635 | $-44,635 |
| Crespo Jose Luis | Chief Revenue Officer | 0 | $0 | 1 | $49,236 | $-49,236 |
Plug Power Inc. delivers end-to-end clean hydrogen and zero-emissions fuel cell solutions for supply chain and logistics applications, on-road electric vehicles, stationary power market, and others in North America and internationally. It engages in building an end-to-end green hydrogen ecosystem, including green hydrogen production, storage and delivery, and energy generation through mobile or stationary applications. The company provides proton exchange membrane (PEM), fuel cell and fuel processing technologies, and fuel cell/battery hybrid technologies, as well as related hydrogen and green hydrogen generation, storage, and dispensing infrastructure. The company offers GenDrive, a hydrogen-fueled PEM fuel cell system that provides power to material handling electric vehicles; GenFuel, a liquid hydrogen fueling delivery, generation, storage, and dispensing system; GenCare, an ongoing Internet of Things-based maintenance and on-site service program for GenDrive fuel cell systems, GenSure fuel cell systems, GenFuel hydrogen storage and dispensing products, and ProGen fuel cell engines; and GenSure, a stationary fuel cell solution that offers modular PEM fuel cell power to support the backup and grid-support power requirements of the telecommunications, transportation, and utility sectors. It also provides GenKey, an integrated turn-key solution for transitioning to fuel cell power; ProGen, a fuel cell stack and engine technology used in mobility and stationary fuel cell systems, and as engines in electric delivery vans; and GenFuel Electrolyzers that are hydrogen generators optimized for clean hydrogen production. The company sells its products through a direct product sales force, original equipment manufacturers, and dealer networks. It has strategic agreements with Airbus; Lhyfe; Edison Motors; Phillips 66; Apex Clean Energy; BAE Systems; and Universal Hydrogen Co. The company was founded in 1997 and is headquartered in Latham, New York.
Over the last 12 months, insiders at Plug Power Inc. have bought $922,425 and sold $93,871 worth of Plug Power Inc. stock.
On average, over the past 5 years, insiders at Plug Power Inc. have bought $922,425 and sold $115.44M worth of stock each year.
Highest buying activity among insiders over the last 12 months: MIDDLETON PAUL B (CFO & Executive VP) — $922,425.
The last purchase of 650,000 shares for transaction amount of $672,035 was made by MIDDLETON PAUL B (See Remarks) on 2025‑06‑09.
| 2025-06-11 | Sale | Crespo Jose Luis | Chief Revenue Officer | 37,300 0.0033% | $1.32 | $49,236 | +0.57% | |
| 2025-06-09 | MIDDLETON PAUL B | See Remarks | 650,000 0.0643% | $1.03 | $672,035 | +14.73% | ||
| 2025-05-16 | MIDDLETON PAUL B | CFO & Executive VP | 350,000 0.0301% | $0.72 | $250,390 | +31.90% | ||
| 2024-11-01 | Sale | MCNAMEE GEORGE C | director | 10,000 0.0011% | $2.09 | $20,916 | -19.86% | |
| 2024-08-01 | Sale | MCNAMEE GEORGE C | director | 10,000 0.0012% | $2.37 | $23,719 | -16.38% | |
| 2024-05-10 | Sale | MCNAMEE GEORGE C | director | 10,000 0.0014% | $2.56 | $25,576 | -18.75% | |
| 2023-10-02 | Sale | Crespo Jose Luis | GM, MATL Handling, Key Accts | 31,958 0.0056% | $7.20 | $230,098 | -52.38% | |
| 2021-07-13 | Sale | Shrestha Sanjay K | Chief Strategy Officer | 11,400 0.002% | $28.43 | $324,131 | -7.30% | |
| 2021-01-19 | Sale | Marsh Andrew | President & CEO | 1.15M 0.2211% | $65.82 | $75.46M | -55.12% | |
| 2021-01-13 | Sale | MCNAMEE GEORGE C | director | 20,000 0.002% | $36.10 | $722,100 | -56.94% | |
| 2021-01-12 | Sale | MCNAMEE GEORGE C | director | 20,000 0.0019% | $32.08 | $641,600 | -54.51% | |
| 2021-01-11 | Sale | Silver Jonathan M | director | 3,560 0.0006% | $48.92 | $174,155 | -44.10% | |
| 2021-01-08 | Sale | MCNAMEE GEORGE C | director | 20,000 0.0019% | $26.91 | $538,300 | -43.17% | |
| 2021-01-08 | Sale | Conway Gerard L JR | Gen Counsel, Corp Sec, Sr VP | 66,666 0.0066% | $27.34 | $1.82M | -43.17% | |
| 2021-01-07 | Sale | Conway Gerard L JR | Gen Counsel, Corp Sec, Sr VP | 66,666 0.0063% | $22.96 | $1.53M | -35.36% | |
| 2021-01-06 | Sale | MCNAMEE GEORGE C | director | 20,000 0.002% | $18.38 | $367,600 | -12.63% | |
| 2021-01-04 | Sale | Conway Gerard L JR | Gen Counsel, Corp Sec, Sr VP | 216,666 0.0237% | $18.05 | $3.91M | -4.57% | |
| 2021-01-04 | Sale | Schneider Lucas P | director | 7,000 0.0014% | $32.20 | $225,424 | -4.57% | |
| 2020-12-28 | Sale | Kenausis Gregory | director | 110,000 0.032% | $34.65 | $3.81M | -6.39% | |
| 2020-12-24 | Sale | MIDDLETON PAUL B | CFO & Senior VP | 433,334 0.1206% | $35.13 | $15.22M | -10.60% |
| MIDDLETON PAUL B | See Remarks | 2558064 0.2231% | $3.3M | 2 | 4 | |
| MCNAMEE GEORGE C | director | 684782 0.0597% | $883,368.78 | 10 | 11 | <0.0001% |
| Crespo Jose Luis | Chief Revenue Officer | 270032 0.0236% | $348,341.28 | 0 | 2 | |
| DTE ENERGY CO | 10 percent owner | 10629463 0.9271% | $13.71M | 0 | 1 | |
| MECHANICAL TECHNOLOGY INC | Former 10% Owner | 6073227 0.5297% | $7.83M | 0 | 73 | |
| SMART HYDROGEN, INC. | 10 percent owner | 5126939 0.4472% | $6.61M | 11 | 0 | <0.0001% |
| MARXE AUSTIN W & GREENHOUSE DAVID M | 10 percent owner | 1511620 0.1318% | $1.95M | 0 | 1 | |
| Marsh Andrew | President & CEO | 748680 0.0653% | $965,797.20 | 5 | 12 | +210.69% |
| WILLIS GARY K | director | 410933 0.0358% | $530,103.57 | 1 | 1 | +17.19% |
| Schmid Keith | COO & Sr. VP | 356220 0.0311% | $459,523.80 | 1 | 14 | +7.71% |
| Shrestha Sanjay K | Chief Strategy Officer | 269300 0.0235% | $347,397.00 | 0 | 3 | |
| Conway Gerard L JR | Gen Counsel, Corp Sec, Sr VP | 185519 0.0162% | $239,319.51 | 0 | 17 | |
| Schneider Lucas P | director | 127229 0.0111% | $164,125.41 | 0 | 3 | |
| HELMER MAUREEN O | director | 113398 0.0099% | $146,283.42 | 0 | 7 | |
| Kenausis Gregory | director | 89169 0.0078% | $115,028.01 | 0 | 2 | |
| SPERRY MARK A | VP & GM, Continuous Power Div. | 64057 0.0056% | $82,633.53 | 0 | 1 | |
| GRAVES GREGORY B | director | 43296 0.0038% | $55,851.84 | 0 | 1 | |
| ELTER JOHN F | VP Res. & System Architecture | 42820 0.0037% | $55,237.80 | 0 | 1 | |
| Silver Jonathan M | director | 42888 0.0037% | $55,325.52 | 0 | 3 | |
| Air Liquide Investissements d'Avenir et de Demonstration | director | 39324 0.0034% | $50,727.96 | 0 | 15 | |
| Hull Martin Daniel | Corporate Controller and CAO | 35000 0.0031% | $45,150.00 | 0 | 8 | |
| SHALIKASHVILI JOHN M | director | 17933 0.0016% | $23,133.57 | 0 | 1 | |
| Millington Joseph M | VP Human Resources | 16890 0.0015% | $21,788.10 | 0 | 2 | |
| Bucknam Allen K | VP Strategy and Business Dev | 17468 0.0015% | $22,533.72 | 0 | 1 | |
| GRANT J DOUGLAS | director | 12500 0.0011% | $16,125.00 | 1 | 0 | +35.11% |
| Roth Johannes Minho | director | 0 0% | $0 | 0 | 3 | |
| AXANE SA | director | 0 0% | $0 | 0 | 1 | |
| FiveT Capital Holding AG | director | 0 0% | $0 | 0 | 3 |
$69,145,483 | 188 | 10.18% | $128.74M | |
$3,165,452 | 53 | 8.61% | $747.96M | |
$72,202,041 | 32 | 14.53% | $992.75M | |
Plug Power Inc. (PLUG) | $15,662,183 | 29 | 29.69% | $1.48B |
$10,331,584 | 29 | 12.75% | $1.5B | |
$496,246 | 28 | -17.59% | $303.77M | |
$42,594,918 | 18 | 11.36% | $1.58B | |
$789,927 | 14 | -0.21% | $2.27B | |
$3,789,846 | 14 | -7.74% | $129.37M | |
$1,821,550 | 14 | 33.69% | $2.95B | |
$5,111,402 | 14 | 16.75% | $8.21B | |
$7,832,660 | 12 | -23.41% | $289.09M | |
$135,169,080 | 12 | -23.77% | $5.1B | |
$1,907,822 | 11 | 5.52% | $4.62B | |
$4,362,003 | 8 | 54.32% | $3.39B | |
$1,208,336 | 5 | -53.11% | $313.88M | |
$684,150 | 3 | -34.90% | $1.32B | |
$794,020 | 2 | -55.63% | $137.43M | |
$200,479 | 1 | 22.16% | $2.24B |
| Increased Positions | 184 | +34.14% | 110M | +26.24% |
| Decreased Positions | 208 | -38.59% | 43M | -10.25% |
| New Positions | 61 | New | 32M | New |
| Sold Out Positions | 83 | Sold Out | 18M | Sold Out |
| Total Postitions | 515 | -4.45% | 485M | +15.99% |
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| Blackrock, Inc. | $67,377.00 | 7.81% | 79.92M | +625,227 | +0.79% | 2025-03-31 |
| Norges Bank | $57,967.00 | 6.72% | 68.76M | +40M | +139.58% | 2024-12-31 |
| State Street Corp | $18,796.00 | 2.18% | 22.3M | +2M | +11.64% | 2024-12-31 |
| Geode Capital Management, Llc | $16,790.00 | 1.95% | 19.92M | +722,639 | +3.77% | 2024-12-31 |
| Morgan Stanley | $14,723.00 | 1.71% | 17.46M | -1M | -5.65% | 2024-12-31 |
| Ubs Group Ag | $13,121.00 | 1.52% | 15.57M | +13M | +418.34% | 2024-12-31 |
| Legal & General Group Plc | $8,550.00 | 0.99% | 10.14M | +881,031 | +9.51% | 2024-12-31 |
| Northern Trust Corp | $6,666.00 | 0.77% | 7.91M | +790,650 | +11.11% | 2024-12-31 |
| Citadel Advisors Llc | $5,706.00 | 0.66% | 6.77M | +5M | +336.74% | 2024-12-31 |