Plug Power (PLUG) COO Dean Fullerton Buys 822,671 Shares

Dean Fullerton, the Chief Operating Officer of Plug Power Inc. (NasdaqCM: PLUG), bought 822,671 shares of the company on June 25, 2026. This insider purchase did not specify a transaction price, but shares of Plug Power were trading around $2.54 on Tuesday.

Insider Buying and Selling at Plug Power Inc.

In addition to Dean Fullerton's purchase, several other insiders at Plug Power also acquired shares on June 25. Paul Middleton, CFO and Executive VP, bought 510,204 shares, and Jose Luis Crespo, President and Chief Revenue Officer, purchased 1,542,508 shares. Gerard Conway Jr., General Counsel, Corporate Secretary, and Executive VP, added 719,837 shares to his holdings. These transactions were not part of any pre-planned trading programs.

Other Institutional Activity in Plug Power

Several institutional investors have been active in Plug Power. BlackRock, Inc. increased its holdings by 34,909,164 shares, bringing its total to 152,093,275 shares valued at approximately $343.7 million, marking a 29.8% increase. Vanguard Capital Management LLC initiated a new position with 62,550,438 shares worth about $141.4 million. Similarly, Vanguard Portfolio Management LLC also opened a new position, acquiring 59,603,806 shares valued at around $134.7 million. D. E. Shaw & Co., Inc. significantly boosted its stake by 26,846,602 shares to a total of 48,958,500, reflecting a 121.4% increase. UBS Group AG added 16,118,618 shares, raising its total to 41,593,479 shares, a 63.3% increase.

Plug Power Inc. Stock Up 75.2%

On Tuesday, Plug Power's shares traded at approximately $2.54. The company has a market capitalization of about $3.54 billion and a beta of 2.122, indicating a higher volatility compared to the broader market. The stock's 52-week low is $1.24, and its high is $4.58. Its 50-day moving average stands at $3.26, while the 200-day moving average is $2.60. The company has a current ratio of 2.358 and a quick ratio of 0.895, with a debt-to-equity ratio of 130.532.

Analysts Set New Price Targets

Analysts have maintained various ratings on Plug Power recently. On May 19, 2026, Wells Fargo maintained a hold rating with a price target of $2.50. Susquehanna also kept a hold rating with a $3.75 target on May 13. Canaccord Genuity maintained its hold rating with a $4.00 target on May 12, while B. Riley Securities continued with a buy rating and a $5.00 target. The consensus among analysts is mixed, with a mean target price of $3.62 based on 16 opinions.

About Plug Power

Plug Power Inc. is a company based in Slingerlands, New York, that designs and sells hydrogen fuel cell systems and solutions. It operates in the industrials sector, specifically within the electrical equipment and parts industry. The company offers products like GenDrive for electric vehicles, GenFuel for hydrogen fueling, and GenCare for maintenance services. With a workforce of 2,344 employees, the company is led by CEO Jose Luis Crespo.

Bottom Line

The recent insider buying activity at Plug Power, including purchases by key executives like Dean Fullerton, suggests confidence in the company's prospects. Investors often watch such transactions closely for potential signals about the company's future. However, it's important to remember that these filings reflect past actions and may not indicate current positions or future intentions.