PLUG POWER INC

Ticker: PLUG CUSIP: 72919P202 Class: Common Stock

FARMERS & MERCHANTS INVESTMENTS INC's Holding History (CIK: 0001259969)

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

Q3 2015

Shares 600 Value ($000) $1 Avg Close $2.13 Range $1.56 - $2.85

Q2 2015

Shares 600 Value ($000) $1 Avg Close $2.62 Range $2.32 - $2.85

Q4 2014

Shares 500 Value ($000) $2 Avg Close $3.98 Range $2.60 - $5.48

Q3 2014

Shares 500 Value ($000) $2 Avg Close $5.15 Range $4.00 - $6.47

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	600	$1	$2.13	$1.56 - $2.85
Q2 2015	600	$1	$2.62	$2.32 - $2.85
Q4 2014	500	$2	$3.98	$2.60 - $5.48
Q3 2014	500	$2	$5.15	$4.00 - $6.47