ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.'s Holding History (CIK: 0001166152)

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

Q3 2016

Shares 10,300 Value ($000) $1,254 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 10,300 Value ($000) $1,222 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 10,300 Value ($000) $1,149 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 10,300 Value ($000) $1,178 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 10,300 Value ($000) $1,130 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 10,300 Value ($000) $1,165 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 10,300 Value ($000) $1,178 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 10,300 Value ($000) $1,077 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 10,300 Value ($000) $1,183 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 10,300 Value ($000) $1,147 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 10,300 Value ($000) $1,112 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 10,300 Value ($000) $1,074 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 10,300 Value ($000) $1,017 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 10,300 Value ($000) $877 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	10,300	$1,254	$108.98	$105.46 - $112.42
Q2 2016	10,300	$1,222	$104.92	$98.81 - $109.58
Q1 2016	10,300	$1,149	$95.34	$88.43 - $102.02
Q4 2015	10,300	$1,178	$105.21	$98.01 - $109.49
Q3 2015	10,300	$1,130	$99.79	$91.88 - $104.89
Q2 2015	10,300	$1,165	$102.25	$97.79 - $105.41
Q1 2015	10,300	$1,178	$97.19	$86.65 - $103.73
Q4 2014	10,300	$1,077	$96.70	$89.74 - $101.94
Q3 2014	10,300	$1,183	$99.26	$94.57 - $104.65
Q2 2014	10,300	$1,147	$94.25	$89.51 - $98.33
Q1 2014	10,300	$1,112	$91.92	$85.62 - $98.30
Q4 2013	10,300	$1,074	$90.95	$84.34 - $94.74
Q3 2013	10,300	$1,017	$81.20	$74.57 - $86.97
Q2 2013	10,300	$877	$73.48	$68.51 - $77.84