United States Renewable Energy

Plug Power Inc (PLUG)

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Over the past 90 days, Plug Power Inc. recorded two insider transactions, both involving sales totaling approximately $322,370. These transactions occurred following a recent earnings report that missed expectations by 80%. The stock has experienced a 28.6% decline over the same period, reflecting ongoing volatility in the company's market performance.
Ticker: PLUG Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Trades
Planned sale 8 Jun 2026
Value US$2,723,388.78 | Price 37.84 | Shares 98,595 (+20.2%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-10 2026-06-08 PlS Planned sale
HELMER MAUREEN O
Non-Executive Director
98,595 +20.2%
37.84
US$2,723,389 		98,595 +20.2% 37.84 US$2,723,389
2026-06-08 2026-06-08 PrS Proposed sale
MAUREEN HELMER

Director

Non-Executive Director
68,909
69.39
US$1,130,096 		68,909 69.39 US$1,130,096
2026-01-14 2026-01-12 PlS Planned sale
Haycraft Benjamin

CSO & GM EMEA

Officer
1,030 +45.0%
45.45
US$4,389,038 		1,030 +45.0% 45.45 US$4,389,038
2026-01-12 2026-01-12 PrS Proposed sale
Haycraft Benjamin

Officer

Officer
40,000
2.17
US$86,800 		40,000 2.17 US$86,800
2025-12-17 2025-12-15 PP Planned purchase
3.3
Crespo Jose Luis

See Remarks

Officer
37,300 +13.8%
2.34
US$87,282 		37,300 +13.8% 2.34 US$87,282
2025-12-11 2025-12-11 PrS Proposed sale
2.3
GEORGE C MCNAMEE

Director

Non-Executive Director
60,000
2.31
US$138,553 		60,000 2.31 US$138,553
2025-12-12 2025-12-10 PlS Planned sale
Haycraft Benjamin

CSO & GM EMEA

Officer
40,000 -9.7%
2.20
US$88,000 		40,000 -9.7% 2.20 US$88,000
2025-12-10 2025-12-10 PrS Proposed sale
Haycraft Benjamin

Officer

Officer
40,000
2.20
US$88,000 		40,000 2.20 US$88,000
2025-12-02 2025-12-02 PrS Proposed sale
SANJAY SHRESTHA

Officer

Officer
50,000
2.15
US$107,500 		50,000 2.15 US$107,500
2025-11-12 2025-11-10 PlS Planned sale
Haycraft Benjamin

CSO & EVP of EMEA Region

Officer
10,000 -2.1%
2.92
US$29,200 		10,000 -2.1% 2.92 US$29,200
2025-11-10 2025-11-10 PrS Proposed sale
Haycraft Benjamin

Officer

Officer
10,000
2.92
US$29,200 		10,000 2.92 US$29,200
2025-12-12 2025-10-10 PlS Planned sale
Haycraft Benjamin

CSO & GM EMEA

Officer
10,000 -2.1%
3.80
US$38,000 		10,000 -2.1% 3.80 US$38,000
2025-10-10 2025-10-10 PrS Proposed sale
Haycraft Benjamin

Officer

Officer
10,000
3.80
US$38,000 		10,000 3.80 US$38,000
2025-09-18 2025-09-16 PlS Planned sale
Haycraft Benjamin

CSO & GM of EMEA Region

Officer
10,972 -2.2%
1.59
US$17,445 		10,972 -2.2% 1.59 US$17,445
2025-09-16 2025-09-16 PrS Proposed sale
Haycraft Benjamin Toby Patrick

Officer

Officer
10,972
1.59
US$17,445 		10,972 1.59 US$17,445
2025-06-13 2025-06-11 PlS Planned sale
3.3
Crespo Jose Luis

Chief Revenue Officer

Officer
37,300 -12.1%
1.32
US$49,236 		37,300 -12.1% 1.32 US$49,236
2025-06-11 2025-06-11 PrS Proposed sale
3.3
Crespo Jose Luis

Officer

Officer
37,300
1.32
US$49,236 		37,300 1.32 US$49,236
2025-06-09 2025-06-09 B Purchase
3.7
MIDDLETON PAUL B

See Remarks

Officer
650,000 +34.1%
1.03
US$672,035 		650,000 +34.1% 1.03 US$672,035
2025-05-19 2025-05-16 B Purchase
3.7
MIDDLETON PAUL B

CFO & Executive VP

Officer
350,000 +22.5%
0.72
US$250,390 		350,000 +22.5% 0.72 US$250,390
2024-11-05 2024-11-01 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.4%
2.09
US$20,916 		10,000 -1.4% 2.09 US$20,916
2024-11-01 2024-11-01 PrS Proposed sale
2.3
MSSB C/FGEORGE C MCNAMEEIRA ROLLOVER DATED 06/06/08

Officer

Officer
10,000
1.96
US$19,600 		10,000 1.96 US$19,600
2024-08-02 2024-08-01 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.4%
2.37
US$23,719 		10,000 -1.4% 2.37 US$23,719
2024-08-01 2024-08-01 PrS Proposed sale
2.3
MSSB C/FGEORGE C MCNAMEEIRA ROLLOVER DATED 06/06/08

Officer

Officer
10,000
2.47
US$24,700 		10,000 2.47 US$24,700
2024-05-13 2024-05-10 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.5%
2.56
US$25,576 		10,000 -1.5% 2.56 US$25,576
2024-05-10 2024-05-10 PrS Proposed sale
2.3
MSSB C/FGEORGE C MCNAMEEIRA ROLLOVER DATED 06/06/08

Officer

Officer
10,000
2.77
US$27,700 		10,000 2.77 US$27,700
2023-10-04 2023-10-02 S Sale
3.3
Crespo Jose Luis

GM, MATL Handling, Key Accts

Officer
31,958 -11.3%
7.20
US$230,098 		31,958 -11.3% 7.20 US$230,098
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
5,178 -0.7%
68.31
US$353,714 		5,178 -0.7% 68.31 US$353,714
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
101,766 -11.9%
67.73
US$6,892,306 		101,766 -11.9% 67.73 US$6,892,306
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
132,753 -13.4%
66.58
US$8,838,708 		132,753 -13.4% 66.58 US$8,838,708
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
114,120 -10.4%
65.66
US$7,493,256 		114,120 -10.4% 65.66 US$7,493,256
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
156,051 -12.4%
64.82
US$10,115,163 		156,051 -12.4% 64.82 US$10,115,163
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
49,918 -3.8%
63.97
US$3,193,055 		49,918 -3.8% 63.97 US$3,193,055
2021-01-21 2021-01-19 PlS Planned sale
2.2
Marsh Andrew

President & CEO

Executive Director
13,482 -1.0%
62.65
US$844,653 		13,482 -1.0% 62.65 US$844,653
2021-01-14 2021-01-13 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.1%
70.45
US$704,500 		10,000 -1.1% 70.45 US$704,500
2021-01-14 2021-01-12 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.1%
62.40
US$624,000 		10,000 -1.1% 62.40 US$624,000
2021-01-13 2021-01-11 PlS Planned sale
Silver Jonathan M
Non-Executive Director
1,780 -4.0%
48.92
US$87,078 		1,780 -4.0% 48.92 US$87,078
2021-01-11 2021-01-08 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
33,333 -15.2%
52.07
US$1,735,649 		33,333 -15.2% 52.07 US$1,735,649
2021-01-11 2021-01-08 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.1%
52.07
US$520,700 		10,000 -1.1% 52.07 US$520,700
2021-01-08 2021-01-07 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
33,333 -15.2%
43.68
US$1,456,132 		33,333 -15.2% 43.68 US$1,456,132
2021-01-08 2021-01-06 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
10,000 -1.1%
35.00
US$350,000 		10,000 -1.1% 35.00 US$350,000
2021-01-06 2021-01-04 PlS Planned sale
Schneider Lucas P
Non-Executive Director
312 -0.2%
33.88
US$10,572 		312 -0.2% 33.88 US$10,572
2021-01-06 2021-01-04 PlS Planned sale
Schneider Lucas P
Non-Executive Director
827 -0.6%
32.59
US$26,951 		827 -0.6% 32.59 US$26,951
2021-01-06 2021-01-04 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
5,600 -2.9%
34.59
US$193,697 		5,600 -2.9% 34.59 US$193,697
2021-01-06 2021-01-04 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
6,100 -3.1%
33.62
US$205,073 		6,100 -3.1% 33.62 US$205,073
2021-01-06 2021-01-04 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
35,095 -15.1%
32.71
US$1,148,003 		35,095 -15.1% 32.71 US$1,148,003
2021-01-06 2021-01-04 PlS Planned sale
0.5
Conway Gerard L JR

Gen Counsel, Corp Sec, Sr VP

Officer
61,538 -20.9%
31.94
US$1,965,536 		61,538 -20.9% 31.94 US$1,965,536
2021-01-06 2021-01-04 PlS Planned sale
Schneider Lucas P
Non-Executive Director
2,361 -1.8%
31.85
US$75,190 		2,361 -1.8% 31.85 US$75,190
2020-12-30 2020-12-28 PlS Planned sale
Kenausis Gregory
Non-Executive Director
3,200 -3.5%
37.05
US$118,550 		3,200 -3.5% 37.05 US$118,550
2020-12-30 2020-12-28 PlS Planned sale
Kenausis Gregory
Non-Executive Director
5,246 -5.4%
36.16
US$189,682 		5,246 -5.4% 36.16 US$189,682
2020-12-30 2020-12-28 PlS Planned sale
Kenausis Gregory
Non-Executive Director
16,238 -14.3%
35.08
US$569,561 		16,238 -14.3% 35.08 US$569,561
2020-12-30 2020-12-28 PlS Planned sale
Kenausis Gregory
Non-Executive Director
30,316 -21.0%
33.91
US$1,028,025 		30,316 -21.0% 33.91 US$1,028,025
2020-12-28 2020-12-24 PlS Planned sale
3.7
MIDDLETON PAUL B

CFO & Senior VP

Officer
216,667 -52.0%
35.13
US$7,611,490 		216,667 -52.0% 35.13 US$7,611,490
2020-12-21 2020-12-17 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
200,000 -36.0%
30.00
US$6,000,000 		200,000 -36.0% 30.00 US$6,000,000
2020-12-21 2020-12-17 PlS Planned sale
HELMER MAUREEN O
Non-Executive Director
10,000 -8.1%
30.00
US$300,000 		10,000 -8.1% 30.00 US$300,000
2020-12-16 2020-12-15 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
83,333 -19.0%
27.04
US$2,253,041 		83,333 -19.0% 27.04 US$2,253,041
2020-12-16 2020-12-14 PlS Planned sale
HELMER MAUREEN O
Non-Executive Director
300 -0.2%
27.14
US$8,141 		300 -0.2% 27.14 US$8,141
2020-12-16 2020-12-14 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
250,000 -41.2%
26.23
US$6,557,500 		250,000 -41.2% 26.23 US$6,557,500
2020-12-16 2020-12-14 PlS Planned sale
HELMER MAUREEN O
Non-Executive Director
15,011 -10.8%
26.11
US$391,970 		15,011 -10.8% 26.11 US$391,970
2020-12-15 2020-12-11 PlS Planned sale
WILLIS GARY K
Non-Executive Director
14,300 -3.4%
27.46
US$392,734 		14,300 -3.4% 27.46 US$392,734
2020-12-15 2020-12-11 PlS Planned sale
WILLIS GARY K
Non-Executive Director
75,900 -15.1%
26.75
US$2,029,953 		75,900 -15.1% 26.75 US$2,029,953
2020-11-17 2020-11-13 S Sale
1.2
FiveT Capital Holding AG
Non-Executive Director
693,911 -100.0%
23.42
US$16,253,824 		693,911 -100.0% 23.42 US$16,253,824
2020-11-17 2020-11-13 S Sale
1.2
Roth Johannes Minho
Non-Executive Director
693,911 -100.0%
23.42
US$16,253,824 		693,911 -100.0% 23.42 US$16,253,824
2020-11-17 2020-11-13 S Sale
1.2
Roth Johannes Minho
Non-Executive Director
1,221,123 -63.8%
22.93
US$28,003,525 		1,221,123 -63.8% 22.93 US$28,003,525
2020-11-17 2020-11-13 S Sale
1.2
FiveT Capital Holding AG
Non-Executive Director
1,221,123 -63.8%
22.93
US$28,003,525 		1,221,123 -63.8% 22.93 US$28,003,525
2020-11-16 2020-11-12 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
83,333 -19.0%
22.84
US$1,903,326 		83,333 -19.0% 22.84 US$1,903,326
2020-11-12 2020-11-09 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
30,000 -3.3%
21.05
US$631,425 		30,000 -3.3% 21.05 US$631,425
2020-11-12 2020-11-09 PlS Planned sale
Silver Jonathan M
Non-Executive Director
42,576 -49.0%
20.00
US$851,601 		42,576 -49.0% 20.00 US$851,601
2020-10-16 2020-10-14 PlS Planned sale
Silver Jonathan M
Non-Executive Director
76,286 -63.2%
17.39
US$1,326,751 		76,286 -63.2% 17.39 US$1,326,751
2020-10-14 2020-10-12 PlS Planned sale
Kenausis Gregory
Non-Executive Director
12,500 -8.0%
18.47
US$230,861 		12,500 -8.0% 18.47 US$230,861
2020-10-14 2020-10-12 PlS Planned sale
3.7
MIDDLETON PAUL B

CFO & Senior VP

Officer
697,066 -77.7%
18.49
US$12,885,614 		697,066 -77.7% 18.49 US$12,885,614
2020-10-14 2020-10-12 PlS Planned sale
Kenausis Gregory
Non-Executive Director
47,500 -23.3%
17.71
US$841,268 		47,500 -23.3% 17.71 US$841,268
2020-10-13 2020-10-08 PlS Planned sale
2.3
MCNAMEE GEORGE C
Non-Executive Director
45,000 -4.8%
19.00
US$855,000 		45,000 -4.8% 19.00 US$855,000
2020-10-09 2020-10-07 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
650,000 -64.6%
18.00
US$11,702,925 		650,000 -64.6% 18.00 US$11,702,925
2020-10-07 2020-10-06 PlS Planned sale
Schmid Keith

COO & Sr. VP

Officer
83,334 -19.0%
16.04
US$1,336,677 		83,334 -19.0% 16.04 US$1,336,677
2020-10-07 2020-10-05 PlS Planned sale
Hull Martin Daniel

Corporate Controller and CAO

Officer
68,565 -66.2%
14.87
US$1,019,898 		68,565 -66.2% 14.87 US$1,019,898
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