PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

Sterling Investment Advisors, Ltd.'s Holding History (CIK: 0001701132)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018
Shares 1,000 Value ($000) $2 Avg Close $1.95 Range $1.72 - $2.20
Q2 2018
Shares 2,500 Value ($000) $5 Avg Close $1.94 Range $1.71 - $2.27
Q1 2018
Shares 2,500 Value ($000) $5 Avg Close $2.01 Range $1.53 - $2.44
Q4 2017
Shares 2,500 Value ($000) $6 Avg Close $2.56 Range $2.17 - $3.21
Q3 2017
Shares 2,500 Value ($000) $7 Avg Close $2.23 Range $1.98 - $2.82
Q2 2017
Shares 2,500 Value ($000) $5 Avg Close $2.09 Range $1.25 - $2.70
Q1 2017
Shares 2,500 Value ($000) $3 Avg Close $1.15 Range $0.83 - $1.52
Q4 2016
Shares 1,000 Value ($000) $1 Avg Close $1.47 Range $1.18 - $1.76