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4/A

Changes in Ownership

DAWSON GEOPHYSICAL CO Filed 2016-03-01 Acc 0001104659-16-101416

Documents 1

4/A Changes in Ownership , xslF345X03/a4a.xml

Around this filing

2017-03-14 4/A Director acquired 2,764 shares (grant or award)
2016-03-07 8-K Regulation FD disclosure
2016-03-01 4/A Changes in Ownership
2016-03-01 8-K Regulation FD disclosure
2015-12-03 4/A Changes in Ownership

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