Insider Trading activities of Plug Power Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Plug Power Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Plug Power Inc since year 2005. Table 2 shows the detailed insider transactions of Plug Power Inc since 2005. The reporting company's ticker symbol is PLUG. The reporting company's CIK number is 1093691.
The total value of stock buying since 2005 is $12,824,466.
The total value of stock sales since 2005 is $15,962,415,348,441.
The total value of stock option exercises since 2005 is $0.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Plug Power Inc (PLUG).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-09 200,000 $440,463 4,855 $11,661 0 $0
2017-06 0 $0 6,247 $13,993 0 $0
2017-03 0 $0 12,636 $13,533 0 $0
2016-12 0 $0 19,000 $26,219 13,334 $0
2016-09 0 $0 19,000 $27,436 0 $0
2016-07 0 $0 0 $0 133,333 $0
2016-06 0 $0 45,138 $78,132 0 $0
2016-03 0 $0 43,015 $84,569 0 $0
2015-12 0 $0 13,281 $30,015 13,334 $0
2015-09 0 $0 15,494 $33,931 0 $0
2015-08 0 $0 6,408,539 $10,704,080 0 $0
2015-03 0 $0 9,101 $23,861 0 $0
2014-08 0 $0 5,521,676 $32,025,720 0 $0
2014-07 0 $0 117,655 $671,779 0 $0
2014-06 0 $0 12,508 $63,790 0 $0
2014-03 0 $0 7,736 $49,355 0 $0
2013-12 0 $0 24,836 $40,606 0 $0
2013-08 32,218 $12,242 0 $0 0 $0
2013-06 172,870 $36,302 0 $0 0 $0
2013-02 0 $0 7,000,000 $903,000 0 $0
2012-09 0 $0 4,462,693 $15,962,366,588,070 0 $0
2011-12 0 $0 3,000 $6,779 0 $0
2011-05 60,000 $145,200 0 $0 0 $0
2010-03 240,146 $149,589 20,375 $10,819 0 $0
2009-04 0 $0 48,000 $44,160 0 $0
2008-12 0 $0 5,126,939 $3,793,934 0 $0
2008-04 0 $0 643,663 $7,436 0 $0
2008-02 522,585 $1,587,385 12,649 $37,318 0 $0
2007-10 135,764 $416,325 3,500 $15,959 0 $0
2007-09 0 $0 3,000 $8,160 0 $0
2007-02 0 $0 9,333 $34,126 0 $0
2006-06 1,836,240 $10,007,508 0 $0 0 $0
2006-02 4,950 $29,452 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Plug Power Inc insiders (PLUG)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-09-22 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 4,855 2.40 11,661
2017-09-15 Mcnamee George C (Director) Buy 25,000 2.21 55,250
2017-09-14 Mcnamee George C (Director) Buy 25,000 2.34 58,475
2017-09-13 Mcnamee George C (Director) Buy 25,000 2.34 58,500
2017-09-12 Mcnamee George C (Director) Buy 25,000 2.17 54,250
2017-09-11 Mcnamee George C (Director) Buy 25,000 2.13 53,250
2017-09-08 Mcnamee George C (Director) Buy 49,400 2.15 106,210
2017-09-07 Mcnamee George C (Director) Buy 25,600 2.13 54,528
2017-06-21 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 6,247 2.24 13,993
2017-03-16 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 12,636 1.07 13,533
2016-12-21 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 19,000 1.38 26,219
2016-12-01 Middleton Paul B (Chief Financial Officer) Option Ex 13,334 .00 0
2016-09-22 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 19,000 1.44 27,436
2016-07-23 Marsh Andrew (President and CEO) Option Ex 122,222 .00 0
2016-07-23 Conway Gerard L Jr (General Counsel) Option Ex 11,111 .00 0
2016-06-16 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 30,092 1.73 52,088
2016-03-24 Helmer Maureen O (Director) Sale 30,000 1.96 58,800
2016-03-17 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 13,015 1.98 25,769
2015-12-16 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 13,281 2.26 30,015
2015-12-01 Middleton Paul B (President, CFO) Option Ex 13,334 .00 0
2015-09-22 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 15,494 2.19 33,931
2015-08-27 Schmid Keith (Chief Operating Officer) Sale 14,000 1.80 25,200
2015-08-26 Axane Sa (Director) Sale 6,394,539 1.67 10,678,880
2015-03-31 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 8,191 2.61 21,386
2015-03-30 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 910 2.72 2,475
2014-08-26 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 5,521,676 5.80 32,025,720
2014-07-29 Conway Gerard L Jr (General Counsel) Sale 33,334 6.00 200,004
2014-07-24 Conway Gerard L Jr (General Counsel) Sale 84,321 5.59 471,775
2014-06-18 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 12,508 5.10 63,790
2014-03-25 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 7,736 6.38 49,355
2013-12-30 Air Liquide Investissements D'avenir Et De Demonstration (Director) Sale 24,836 1.64 40,606
2013-08-20 Marsh Andrew (President & CEO) Buy 32,218 .38 12,242
2013-06-12 Marsh Andrew (President & CEO) Buy 172,870 .21 36,302
2013-02-14 Marxe Austin W & Greenhouse David M (10% Owner) Sale 7,000,000 .13 903,000
2012-09-28 Ojsc Third Generation Co Of The Wholesale Electricity Market (10% Owner) Sale 4,462,693 3,576,846.22 15,962,366,588,070
2011-12-05 Garberding Larry (Director) Sale 3,000 2.26 6,779
2011-05-31 Marsh Andrew (Director) Buy 20,000 2.42 48,400
2011-05-31 Mcnamee George C (Director) Buy 40,000 2.42 96,800
2010-03-25 Corless Adrian J (Chief Technology Officer) Buy 20,000 .74 14,800
2010-03-25 Hansen Erik J (VP & GM, Motive Power Division) Buy 10,000 .74 7,400
2010-03-22 Marsh Andrew (President & CEO) Buy 50,000 .59 29,700
2010-03-19 Mcnamee George C (Director) Buy 160,146 .61 97,689
2010-03-05 Sperry Mark A (VP & GM, Continuous Power Div.) Sale 20,375 .53 10,819
2009-04-03 Sperry Mark A (VP & GM, Continuous Power Div) Sale 48,000 .92 44,160
2008-12-20 Branton Ltd (10% Owner) Sale 5,126,939 .74 3,793,934
2008-04-24 Prokhorov Mikhail D (10% Owner) Sale 640,803 .00 0
2008-04-03 Millington Joseph M (VP Human Resources) Sale 2,860 2.60 7,436
2008-02-11 Millington Joseph M (VP Human Resources) Sale 2,250 3.15 7,087
2008-02-08 Potanin Vladimir O (10% Owner) Buy 65,235 3.23 204,933
2008-02-07 Potanin Vladimir O (10% Owner) Buy 48,950 3.05 149,297
2008-02-06 Potanin Vladimir O (10% Owner) Buy 93,050 3.08 285,820
2008-02-05 Potanin Vladimir O (10% Owner) Buy 75,000 3.10 232,350
2008-02-04 Johnson Bradley H (VP Customer Operations) Sale 4,999 2.90 14,502
2008-02-04 Conway Gerard L Jr (General Counsel) Sale 2,250 2.91 6,547
2008-02-04 Sperry Mark A (VP and Chief Marketing Officer) Sale 3,150 2.92 9,182
2008-02-04 Potanin Vladimir O (10% Owner) Buy 70,000 2.99 209,160
2008-02-01 Potanin Vladimir O (10% Owner) Buy 88,000 2.83 249,480
2007-10-22 Bucknam Allen K (VP Strategy and Business Dev) Sale 3,500 4.56 15,959
2007-10-10 Potanin Vladimir O (10% Owner) Buy 40,764 3.08 125,634
2007-10-09 Potanin Vladimir O (10% Owner) Buy 40,000 3.07 122,840
2007-10-08 Potanin Vladimir O (10% Owner) Buy 23,000 3.08 70,955
2007-10-05 Potanin Vladimir O (10% Owner) Buy 32,000 3.03 96,896
2007-09-17 Bucknam Allen K (VP Strategy and Business Dev) Sale 3,000 2.72 8,160
2007-02-01 Conway Gerard L Jr (General Counsel) Sale 2,000 3.66 7,320
2007-02-01 Silvestri Gregory A (Chief Operating Officer) Sale 2,800 3.66 10,248
2007-02-01 Elter John F (VP Res. & System Architecture) Sale 1,333 3.66 4,878
2007-02-01 Sperry Mark A (VP and Chief Marketing Officer) Sale 3,200 3.65 11,680
2006-06-29 Potanin Vladimir O (10% Owner) Buy 1,836,240 5.45 10,007,508
2006-02-01 Helmer Maureen O (Director) Buy 4,950 5.95 29,452

Insider trading activities including stock purchases, stock sales, and option exercises of PLUG listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Plug Power Inc (symbol PLUG, CIK number 1093691) see the Securities and Exchange Commission (SEC) website.