DAWSON GEOPHYSICAL CO 4
4 · DAWSON GEOPHYSICAL CO · Filed Feb 20, 2007
Insider Transaction Report
Form 4
NELSON ALAN MARK
Vice President
Transactions
- Exercise/Conversion
Dawson Geophysical Company-common stock $0.33 1/3 par value
2007-02-09$7.41/sh+2,500$18,516→ 15,391 total - Sale
Dawson Geophysical Company-common stock $0.33 1/3 par value
2007-02-09$41.60/sh−2,500$103,999→ 12,891 total