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Latest ownership filings
SC 13G/A
DAWSON GEOPHYSICAL CO
17 Feb 22
SC 13D
DAWSON GEOPHYSICAL CO
8 Oct 21
4
AEHR TEST SYSTEMS
16 Jul 20
4
AEHR TEST SYSTEMS
22 Apr 20
4
AEHR TEST SYSTEMS
23 Oct 19
4
AEHR TEST SYSTEMS
24 Oct 18
4
AEHR TEST SYSTEMS
3 Aug 18
4
AEHR TEST SYSTEMS
2 Aug 18
4
AEHR TEST SYSTEMS
27 Oct 17
4
AEHR TEST SYSTEMS
29 Aug 17