Insider Activity of WILLIS GARY K
The largest purchase of all time was on 2003-12-04 and amounted to 10000 shares of Plug Power Inc. for $50,200.
The largest sale of all time was on 2020-12-11 and amounted to 180400 shares of Plug Power Inc. for $4.85M.
Biography of WILLIS GARY K
No biography is available at this moment.