Insider Trading History of Willis Gary K

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Willis Gary K since 2006. The trader's CIK number is 1121475. At the time of the last reporting, Willis Gary K was the Officer of Plug Power Inc. (stock ticker symbol PLUG). Also see all insider trading activities at Plug Power Inc.

Note that in the past WILLIS GARY K also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Plug Power Inc (PLUG) by Willis Gary K

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2020 PLUG 0 $0 90,200 $2,444,871 90,200 $194,651

Yearly summary of insider trading at Benthos Inc (BTHS) by Willis Gary K

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2006 BTHS 0 $0 0 $0 25,500 $168,096

Yearly summary of insider trading at Zygo Corp (ZIGO) by Willis Gary K

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2012 ZIGO 0 $0 50,000 $991,400 0 $0

Yearly summary of insider trading at Vion Pharmaceuticals Inc (VION) by Willis Gary K

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2007 VION 50,000 $76,000 0 $0 0 $0

Yearly summary of insider trading at Rofin Sinar Technologies Inc (RSTI) by Willis Gary K

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2010 RSTI 0 $0 3,000 $86,175 0 $0
2008 RSTI 0 $0 16,000 $655,586 0 $0


Insider trading activities at 5 companies by Willis Gary K:

1. Plug Power Inc (PLUG)

2. Benthos Inc (BTHS)

3. Zygo Corp (ZIGO)

4. Vion Pharmaceuticals Inc (VION)

5. Rofin Sinar Technologies Inc (RSTI)

Table 1. Insider trading of Plug Power Inc (PLUG) by Willis Gary K

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2020-12-11 PLUG Sale 90,200 27.11 2,444,871
2020-12-11 PLUG Option Ex 90,200 2.16 194,651

Table 2. Insider trading of Benthos Inc (BTHS) by Willis Gary K

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2006-01-27 BTHS Option Ex 25,500 6.59 168,096

Table 3. Insider trading of Zygo Corp (ZIGO) by Willis Gary K

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2012-08-29 ZIGO Sale 50,000 19.83 991,400

Table 4. Insider trading of Vion Pharmaceuticals Inc (VION) by Willis Gary K

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2007-03-07 VION Buy 50,000 1.52 76,000

Table 5. Insider trading of Rofin Sinar Technologies Inc (RSTI) by Willis Gary K

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2010-11-15 RSTI Sale 3,000 28.73 86,175
2008-02-13 RSTI Sale 7,000 41.65 291,536
2008-02-12 RSTI Sale 9,000 40.45 364,050

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Willis Gary K (Officer of Plug Power Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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