CIK: 0000937886

Oberweis Asset Management Inc/

Filing Date Previous Period Total Shares Share-Type Market Value Change
2021-02-16
6.28M
6.38M
Shares
89.27M
105.49K
2023-08-14
699.11K
873.11K
Shares
36.02M
174K
2021-05-17
469.43K
473.03K
Shares
40.06M
3.60K
2021-05-17
263.40K
435.46K
Shares
6.88M
172.06K
2021-05-17
314.81K
427.90K
Shares
10.08M
113.09K
2021-05-17
0
416.85K
Shares
41.32M
416.85K
2023-08-14
410.62K
415.70K
Shares
2.04M
5.08K
2021-02-16
471.39K
349.22K
Shares
68.13M
-122.17K
2021-05-17
0
293.30K
Shares
1.19M
293.30K
2021-02-16
274.51K
275.86K
Shares
8.47M
1.35K
2023-08-14
212K
224.70K
Shares
2.40M
12.70K
2023-08-14
191.90K
223K
Shares
3.19M
31.10K
2021-02-16
200.60K
200.60K
Shares
800K
0
2021-05-17
145.78K
194.44K
Shares
5.13M
48.66K
2021-05-17
401.05K
185.37K
Shares
8.30M
-215.68K
2021-05-17
120.10K
175.40K
Shares
2.37M
55.30K
2021-05-17
168.73K
168.73K
Shares
1.36M
0
2023-08-14
178.54K
166.18K
Shares
13.95M
-12.36K
2021-05-17
12K
151.21K
Shares
1.79M
139.21K
2023-08-14
117.68K
148.20K
Shares
5.28M
30.52K
2021-05-17
98K
143.90K
Shares
1.39M
45.90K
2023-08-14
103.60K
141.50K
Shares
5.06M
37.90K
2021-05-17
109.10K
131.80K
Shares
4.26M
22.70K
2023-08-14
0
117.70K
Shares
3.75M
117.70K
2021-05-17
114K
114K
Shares
813K
0
2023-08-14
86.80K
113.70K
Shares
4.45M
26.90K
2023-08-14
72.90K
106.80K
Shares
4.72M
33.90K
2023-08-14
97.90K
106.70K
Shares
5.95M
8.80K
2021-05-17
0
106.20K
Shares
929K
106.20K
2021-05-17
0
104.30K
Shares
1.47M
104.30K
2021-05-17
72K
101.40K
Shares
832K
29.40K
2021-02-16
0
100.28K
Shares
316K
100.28K
2021-02-16
0
100K
Shares
393K
100K
2021-05-17
0
98.30K
Shares
2.30M
98.30K
2021-05-17
163.11K
97.07K
Shares
6.64M
-66.04K
2021-05-17
84.48K
94.64K
Shares
3.33M
10.16K
2021-05-17
95.50K
86.40K
Shares
1.57M
-9.10K
2021-05-17
0
85K
Shares
1.16M
85K
2021-05-17
0
85K
Shares
895K
85K
2021-05-17
83.30K
83.30K
Shares
421K
0
2021-05-17
36.04K
82.96K
Shares
5.67M
46.92K
2021-05-17
36.04K
82.96K
Shares
5.67M
46.92K
2021-05-17
83.80K
81K
Shares
401K
-2.80K
2021-05-17
37K
80.21K
Shares
4.66M
43.21K
2021-05-17
0
78.50K
Shares
971K
78.50K
2021-05-17
49.32K
72.38K
Shares
2.97M
23.06K
2021-05-17
85.30K
72.30K
Shares
1.80M
-13K
2021-05-17
57.23K
71.17K
Shares
6.34M
13.94K
2021-02-16
0
70K
Shares
407K
70K
2021-05-17
0
68.90K
Shares
2.87M
68.90K
2021-05-17
82.30K
67.40K
Shares
1.28M
-14.90K
2023-08-14
57.60K
66.90K
Shares
1.60M
9.30K
2021-05-17
0
66.30K
Shares
920K
66.30K
2021-05-17
0
66.30K
Shares
920K
66.30K
2021-05-17
123.24K
65.84K
Shares
4.48M
-57.40K
2021-02-16
0
63.80K
Shares
566K
63.80K
2021-05-17
0
62K
Shares
1.35M
62K
2021-05-17
0
62K
Shares
1.02M
62K
2021-05-17
59.40K
59.40K
Shares
941K
0
2021-02-16
88.30K
51.27K
Shares
2.90M
-37.02K
2021-05-17
10.76K
50.06K
Shares
11.18M
39.30K
2021-05-17
0
50K
Shares
1M
50K
2021-05-17
19.93K
49.30K
Shares
6.68M
29.37K
2021-05-17
48K
48K
Shares
720K
0
2021-02-16
45.60K
46.33K
Shares
1.73M
730
2021-05-17
58.98K
45.98K
Shares
1.38M
-13K
2023-08-14
50.84K
45.10K
Shares
7.42M
-5.73K
2021-05-17
0
45K
Shares
365K
45K
2021-05-17
27K
43.50K
Shares
1.55M
16.50K
2021-05-17
36.81K
43.01K
Shares
2.09M
6.20K
2021-05-17
44.19K
42.87K
Shares
1.57M
-1.32K
2021-05-17
0
42.50K
Shares
1.21M
42.50K
2021-05-17
0
42.50K
Shares
3.02M
42.50K
2021-05-17
46K
41.20K
Shares
976K
-4.80K
2023-08-14
24.20K
40.40K
Shares
3.52M
16.20K
2021-05-17
40.30K
40.30K
Shares
1.73M
0
2021-05-17
39.80K
39.80K
Shares
664K
0
2023-08-14
37.40K
38.30K
Shares
2.00M
900
2021-05-17
38K
38K
Shares
613K
0
2021-05-17
7.60K
37.05K
Shares
1.26M
29.45K
2021-05-17
36.80K
36.80K
Shares
1M
0
2021-05-17
19.50K
36.47K
Shares
1.18M
16.97K
2021-05-17
0
36K
Shares
1.53M
36K
2021-05-17
0
35K
Shares
717K
35K
2021-02-16
26.80K
34.60K
Shares
1.64M
7.80K
2021-02-16
26.30K
32.80K
Shares
656K
6.50K
2021-05-17
31.68K
31.68K
Shares
1.32M
0
2021-02-16
22.80K
31.20K
Shares
429K
8.40K
2021-05-17
28.10K
30.83K
Shares
1.19M
2.73K
2021-05-17
0
30K
Shares
1.19M
30K
2021-05-17
30K
30K
Shares
1.05M
0
2021-05-17
0
30K
Shares
615K
30K
2021-05-17
17.80K
29K
Shares
893K
11.20K
2021-05-17
28.60K
28.60K
Shares
1.35M
0
2021-05-17
28.40K
28.40K
Shares
1.77M
0
2021-02-16
28.10K
28.10K
Shares
1.08M
0
2021-05-17
66.60K
27.40K
Shares
1.02M
-39.20K
2021-05-17
0
27K
Shares
1.45M
27K
2021-05-17
26.30K
26.30K
Shares
1.55M
0
2021-05-17
27.56K
26.28K
Shares
1.96M
-1.28K