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No insider purchase over the last 90 days. The latest was filed 17 Dec 2025.
Plug Power Inc: what insiders have been doing
Plug Power Inc, founded in 1997, is a Energy company based in Latham, United States. Its directors and officers file their transactions with SEC (Form 4). 14 insiders have disclosed 38 filings since 18 October 2025.
Open-market activity splits into 1 purchase totalling €74k and 6 sales totalling €192k; 1 insider sit on the buying side and 2 insiders on the selling side. The totals do not cover 1 filing with an undisclosed amount. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. At €75k, the sale published on 14 January 2026 by Haycraft Benjamin is the largest of the period.
Across the 5,810 companies tracked on its exchange, the median is 19 filings; at 38 filings, this issuer sits above that mark. The full history, which starts in 2016, counts 3 purchases against 13 sales. On the fundamentals side, the SEC filing (10-K) for the period ending 31 December 2025 lists revenue at 709.9 m USD and net income at -1.63 bn USD.
The last purchase on record was published on 17 December 2025, which is 305 days ago. Filings reach the SEC (Form 4) feed a median of 4 days after the trade. US insiders must file a Form 4 within two business days of a trade. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification.
Other companies in the same sector with recent insider buying flagged by our signals: RGC Resources Inc and Empire Petroleum Corp. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Insider Decl.
297
Thresholds
n/a
Buy Volume
€886,127
3 ops. · all time
Sell Volume
€561,543
13 ops. · all time
Who traded when
BuySaleHaycraft Benjamin7 sales
Crespo Jose Luis1 buy1 sale
Middleton Paul B2 buys
Maureen O. Helmer1 sale
Mcnamee George C1 sale
Since the insiders bought
- +2.7%Entry US$2.26 · Close at T+90 US$2.32
- +123.4%Entry US$1.28 · Close at T+365 US$2.86
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Analyst consensus: bullish or bearish?
Analysts rate Plug Power Inc Hold (neutral), based on 15 analysts. Average price target: US$3.41.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 24,108 of 24,148 companies
2.9
score / 100
Value5
Quality1
FCF yld-32%
Earn yld-79%
EV/EBITDA·
ROE-145%
Gross mgn-34%
Net mgn·
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$1.49
Analyst consensus
15 analystsHold
US$0.75Target US$3.41(+129%)US$7.00
Income statement
RevenueUS$709.9M
Gross profit-US$242M-34% margin
EBITDA-US$1.6B-223% margin
Net income-US$1.6B-220.6% margin
Valuation
PER (forward)-10.0x
P/Book3.6x
Beta2.29
Balance sheet & cash
Market capUS$2.1B
Total debtUS$997.2M
Free Cash Flow-US$661.5M
Debt / Equity177%
Profitability & ownership
ROE-145.0%
ROA-12.2%
% insiders4.5%
% institutions73.2%
Last declaration on 15 October 2026
Declarations297 total
9,375 shares@ US$1.4099COMMONSEC144:0001000275-26-000116
6,121 shares@ US$1.940.0005% mcap24.1% of flowCommon StockSEC:0001104659-26-113352:0
11,598 shares@ US$1.940.0009% mcap22.2% of flowCommon StockSEC:0001104659-26-113348:0
5,928 shares@ US$1.940.0004% mcap14.5% of flowCommon StockSEC:0001104659-26-113351:0
12,242 shares@ US$1.940.0009% mcap20.4% of flowCommon StockSEC:0001104659-26-113347:0
200,000 shares@ US$2.14150.015% mcap61.7% of flowCOMMONSEC144:0001000275-26-000113
13,810 shares@ US$2.140.0010% mcap4.2% of flowCommon StockSEC:0001104659-26-107941:0
18,750 shares@ US$2.060.0013% mcap5.5% of flowCommon StockSEC:0001104659-26-107941:1
13,810 shares@ US$2.140.0010% mcap4.2% of flowCOMMONSEC144:0001000275-26-000107
44,957 shares@ US$2.26100.0% of flowCommonSEC144:0001950047-26-009242
8,764 shares@ US$2.710.0008% mcap25.5% of flowCommon StockSEC:0001104659-26-080758:0
3,558 shares@ US$2.710.0003% mcap25.6% of flowCommon StockSEC:0001104659-26-080754:0
7,644 shares@ US$2.710.0007% mcap26.2% of flowCommon StockSEC:0001104659-26-080764:0
3,980 shares@ US$2.710.0004% mcap15.8% of flowCommon StockSEC:0001104659-26-080766:0
39,753 sharesCommon StockSEC:0001104659-26-074755:0
39,753 sharesCommon StockSEC:0001104659-26-074756:0
50,000 sharesCommon StockSEC:0001104659-26-072322:0
50,000 shares@ US$3.2150.0052% mcap100.0% of flowCommonSEC144:0001950047-26-005772
8,712 shares@ US$2.2628.3% of flowCommon StockSEC:0001104659-26-042135:0
9,956 shares@ US$2.2633.6% of flowCommon StockSEC:0001104659-26-042134:0
3,688 shares@ US$2.265.3% of flowCommon StockSEC:0001104659-26-042129:0
3,872 shares@ US$2.2622.8% of flowCommon StockSEC:0001104659-26-042132:0
10,509 shares@ US$2.2625.0% of flowCommon StockSEC:0001104659-26-042131:0
8,850 shares@ US$2.2624.8% of flowCommon StockSEC:0001104659-26-042130:0
40,000 shares@ US$2.1712.3% of flowCommon StockSEC:0001104659-26-003755:0
25 of 297 declarations
About Plug Power Inc
Plug Power Inc. is a U.S.-listed company traded on the NASDAQ (United States) and focused on integrated hydrogen solutions. Founded in 1997, the company was originally built around fuel-cell systems for material handling before expanding into a broader hydrogen platform. Its corporate headquarters is in Slingerlands, New York. ([plugpower.com](https://www.plugpower.com/wp-content/uploads/2024/05/PLUG_HR_Doc_Introducing-Plug-Opt_EN_052924_F.pdf?utm_source=openai))
From an equity research perspective, Plug Power is best understood as a vertically integrated hydrogen company rather than a single-product manufacturer. Its end-to-end platform spans green hydrogen production through PEM electrolysis, liquefaction, storage, transport, distribution, dispensing, and conversion into power. The company’s core business lines include material handling solutions, GenEco electrolyzers, cryogenic equipment, and hydrogen fuel sales. That integrated model is central to Plug’s investment case because it allows the company to sell both the equipment and the associated infrastructure required to make hydrogen adoption practical at scale. ([plugpower.com](https://www.plugpower.com/about-us/?utm_source=openai))
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Historically, Plug gained traction in warehouses and distribution centers, where its GenDrive fuel-cell systems and GenFuel fueling stations were adopted by large customers in retail, food distribution, manufacturing, and logistics. Over time, the company broadened its addressable market through acquisitions and partnerships that added capabilities in electrolysis, cryogenics, and mobility. The result is a more diversified hydrogen portfolio and a stronger competitive position than a standalone component supplier, although the business still operates in a capital-intensive and highly competitive clean-energy market. ([plugpower.com](https://www.plugpower.com/about-us/?utm_source=openai))
Geographically, Plug remains anchored in the United States while continuing to build an international footprint. The company has highlighted projects and deliveries in Europe, including Germany, France, and Portugal, which underscores its ability to compete in industrial hydrogen supply chains beyond North America. This matters for long-term investors because the hydrogen market is increasingly global, and customer demand is tied to both industrial decarbonization and energy-security priorities. ([ir.plugpower.com](https://www.ir.plugpower.com/press-releases/news-details/2025/Plug-Power-Signs-Letter-of-Intent-with-Hy2gen-for-5MW-PEM-Electrolyzer-Supporting-Frances-Hydrogen-Roadmap-at-Sunrhyse-Green-Hydrogen-Project/default.aspx?utm_source=openai))
Recent news points to an operational turnaround narrative. In its first quarter of 2026 update, Plug reported 22% year-over-year revenue growth and material margin improvement. For full-year 2025, management said revenue was roughly $710 million and gross margin turned positive in the fourth quarter. The company also appointed Jose Luis Crespo as CEO in March 2026, signaling a stronger emphasis on disciplined execution, cost control, and a clearer path to profitability. In February 2026, Plug announced a strategic infrastructure optimization agreement with Stream Data Centers, part of a broader effort to improve liquidity and strengthen the balance sheet. ([ir.plugpower.com](https://www.ir.plugpower.com/press-releases/news-details/2026/Plug-Power-Reports-Strong-Q1-2026-Results-with-22-Revenue-Growth-and-71-Margin-Improvement-Year-over-Year/default.aspx?utm_source=openai))
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