NORTHERN TECHNOLOGIES $10.57
-0.37
|
Date |
Open |
High |
Low |
Close |
Volume |
|
5/23/2013
|
10.67
|
10.69
|
10.56
|
10.57
|
21
|
|
5/22/2013
|
10.65
|
10.94
|
10.65
|
10.94
|
10
|
|
5/21/2013
|
10.75
|
10.78
|
10.65
|
10.65
|
97
|
|
5/20/2013
|
10.78
|
10.78
|
10.75
|
10.75
|
15
|
|
5/17/2013
|
11.00
|
11.00
|
10.75
|
10.95
|
40
|
|
5/16/2013
|
11.02
|
11.02
|
10.90
|
11.00
|
84
|
|
5/15/2013
|
11.18
|
11.18
|
11.00
|
11.13
|
82
|
|
5/14/2013
|
11.00
|
11.18
|
10.91
|
11.18
|
74
|
|
5/13/2013
|
11.18
|
11.18
|
11.00
|
11.10
|
31
|
|
5/10/2013
|
11.00
|
11.22
|
11.00
|
11.10
|
26
|
|
5/9/2013
|
11.00
|
11.00
|
10.95
|
10.95
|
13
|
|
5/8/2013
|
11.00
|
11.05
|
10.95
|
11.00
|
153
|
|
5/7/2013
|
10.84
|
11.00
|
10.84
|
11.00
|
26
|
|
5/6/2013
|
10.95
|
11.05
|
10.68
|
10.91
|
136
|
|
5/3/2013
|
11.20
|
11.20
|
10.95
|
10.95
|
2
|
|
5/2/2013
|
10.95
|
11.42
|
10.79
|
10.85
|
37
|
|
5/1/2013
|
10.80
|
11.44
|
10.80
|
11.06
|
257
|
|
4/30/2013
|
10.80
|
11.49
|
10.68
|
10.82
|
33
|
|
4/29/2013
|
11.98
|
11.98
|
10.73
|
10.82
|
16
|
|
4/26/2013
|
10.84
|
10.84
|
10.82
|
10.82
|
13
|
|
4/25/2013
|
10.94
|
11.00
|
10.68
|
10.89
|
34
|
|
4/24/2013
|
11.05
|
11.05
|
10.90
|
10.90
|
8
|
|
4/23/2013
|
11.09
|
11.09
|
10.96
|
10.96
|
7
|
|
4/22/2013
|
11.00
|
11.05
|
10.97
|
11.05
|
51
|
|
4/19/2013
|
10.94
|
11.00
|
10.83
|
10.84
|
34
|
|
4/18/2013
|
10.95
|
10.95
|
10.67
|
10.74
|
39
|
|
4/17/2013
|
10.90
|
10.99
|
10.90
|
10.91
|
12
|
|
4/16/2013
|
10.89
|
11.08
|
10.75
|
10.90
|
70
|
|
4/15/2013
|
10.79
|
10.79
|
10.60
|
10.70
|
26
|
|
4/12/2013
|
10.97
|
10.99
|
10.80
|
10.80
|
81
|
|
4/11/2013
|
12.50
|
12.50
|
10.75
|
10.75
|
628
|
|
4/10/2013
|
12.95
|
13.15
|
12.93
|
13.04
|
44
|
|
4/9/2013
|
12.90
|
13.14
|
12.90
|
13.07
|
21
|
|
4/8/2013
|
12.90
|
13.15
|
12.90
|
12.98
|
25
|
|
4/5/2013
|
12.90
|
12.90
|
12.90
|
12.90
|
0
|
|
4/4/2013
|
12.91
|
12.91
|
12.90
|
12.90
|
2
|
|
4/3/2013
|
12.89
|
12.89
|
12.89
|
12.89
|
4
|
|
4/2/2013
|
12.93
|
13.15
|
12.93
|
13.09
|
6
|
|
4/1/2013
|
13.00
|
13.14
|
12.89
|
12.95
|
77
|
|
3/28/2013
|
13.05
|
13.42
|
13.05
|
13.42
|
12
|
|
3/27/2013
|
13.00
|
13.00
|
12.89
|
13.00
|
21
|
|
3/26/2013
|
13.05
|
13.05
|
13.05
|
13.05
|
5
|
|
3/25/2013
|
13.05
|
13.05
|
13.05
|
13.05
|
0
|
|
3/22/2013
|
13.19
|
13.45
|
13.05
|
13.05
|
28
|
|
3/21/2013
|
13.05
|
13.05
|
13.05
|
13.05
|
11
|
|
3/20/2013
|
13.05
|
13.05
|
13.05
|
13.05
|
7
|
|
3/19/2013
|
13.00
|
13.00
|
13.00
|
13.00
|
0
|
|
3/18/2013
|
13.00
|
13.10
|
13.00
|
13.00
|
5
|
|
3/15/2013
|
13.03
|
13.09
|
13.00
|
13.00
|
23
|
|
3/14/2013
|
13.25
|
13.25
|
13.25
|
13.25
|
1
|
|
3/13/2013
|
13.17
|
13.40
|
13.01
|
13.09
|
26
|
|
3/12/2013
|
13.01
|
13.49
|
13.00
|
13.01
|
82
|
|
3/11/2013
|
13.03
|
13.11
|
13.01
|
13.11
|
9
|
|
3/8/2013
|
13.39
|
13.39
|
13.18
|
13.18
|
4
|
|
3/7/2013
|
13.31
|
13.40
|
13.10
|
13.18
|
4
|
|
3/6/2013
|
13.38
|
13.38
|
13.06
|
13.10
|
8
|
|
3/5/2013
|
13.37
|
13.37
|
13.01
|
13.03
|
10
|
|
3/4/2013
|
13.00
|
13.39
|
13.00
|
13.09
|
12
|
|
3/1/2013
|
13.36
|
13.36
|
13.06
|
13.14
|
5
|
|
2/28/2013
|
12.79
|
13.43
|
12.79
|
13.00
|
63
|
|
2/27/2013
|
13.46
|
13.46
|
12.97
|
13.12
|
60
|
|
2/26/2013
|
13.25
|
13.25
|
13.25
|
13.25
|
0
|
|
2/25/2013
|
13.55
|
13.55
|
13.25
|
13.25
|
24
|
|
2/22/2013
|
13.40
|
13.65
|
13.25
|
13.25
|
15
|
|
2/21/2013
|
12.79
|
12.79
|
12.79
|
12.79
|
1
|
|
2/20/2013
|
13.50
|
13.95
|
13.50
|
13.95
|
13
|
|
2/19/2013
|
13.12
|
13.72
|
13.00
|
13.54
|
123
|
|
2/15/2013
|
13.05
|
13.11
|
12.71
|
13.10
|
52
|
|
2/14/2013
|
13.32
|
13.32
|
13.28
|
13.28
|
21
|
|
2/13/2013
|
13.41
|
13.50
|
13.30
|
13.31
|
169
|
|
2/12/2013
|
13.17
|
13.60
|
13.17
|
13.40
|
17
|
|
2/11/2013
|
13.05
|
13.05
|
13.05
|
13.05
|
1
|
|
2/8/2013
|
13.05
|
13.42
|
13.05
|
13.28
|
32
|
|
2/7/2013
|
13.01
|
13.30
|
13.00
|
13.24
|
66
|
|
2/6/2013
|
13.22
|
13.50
|
12.81
|
13.50
|
36
|
|
2/5/2013
|
12.81
|
13.37
|
12.81
|
13.31
|
17
|
|
2/4/2013
|
13.08
|
13.23
|
13.08
|
13.23
|
9
|
|
2/1/2013
|
13.00
|
13.00
|
13.00
|
13.00
|
8
|
|
1/31/2013
|
12.70
|
13.39
|
12.70
|
13.39
|
55
|
|
1/30/2013
|
12.71
|
13.11
|
12.71
|
13.11
|
43
|
|
1/29/2013
|
13.10
|
13.24
|
12.40
|
12.40
|
13
|
|
1/28/2013
|
13.03
|
13.42
|
13.00
|
13.06
|
6
|
|
1/25/2013
|
12.97
|
13.25
|
12.87
|
13.00
|
44
|
|
1/24/2013
|
12.41
|
13.07
|
12.40
|
12.98
|
76
|
|
1/23/2013
|
12.32
|
12.96
|
12.27
|
12.91
|
78
|
|
1/22/2013
|
12.32
|
12.50
|
12.32
|
12.50
|
4
|
|
1/18/2013
|
12.70
|
12.70
|
12.70
|
12.70
|
12
|
|
1/17/2013
|
12.93
|
12.93
|
12.93
|
12.93
|
7
|
|
1/16/2013
|
12.65
|
13.41
|
12.65
|
13.41
|
79
|
|
1/15/2013
|
12.26
|
12.60
|
12.23
|
12.60
|
51
|
|
1/14/2013
|
11.60
|
12.50
|
11.60
|
12.50
|
151
|
|
1/11/2013
|
11.87
|
11.91
|
11.50
|
11.55
|
136
|
|
1/10/2013
|
11.55
|
12.23
|
11.53
|
12.23
|
25
|
|
1/9/2013
|
11.50
|
12.19
|
11.50
|
12.19
|
32
|
|
1/8/2013
|
11.50
|
12.50
|
11.50
|
12.30
|
100
|
|
1/7/2013
|
11.42
|
11.50
|
11.42
|
11.50
|
19
|
|
1/4/2013
|
11.35
|
11.42
|
11.02
|
11.42
|
58
|
|
1/3/2013
|
11.37
|
11.37
|
11.02
|
11.26
|
8
|
|
1/2/2013
|
11.24
|
11.44
|
11.22
|
11.44
|
42
|
|
12/31/2012
|
11.40
|
11.40
|
11.40
|
11.40
|
2
|