Wright Stuart Allan 4
4 · DAWSON GEOPHYSICAL CO · Filed Feb 25, 2011
Insider Transaction Report
Form 4
Wright Stuart Allan
Vice President
Transactions
- Exercise/Conversion
DWSN-Common Stock $0.33 1/3 par
2011-02-23$18.91/sh+2,500$47,275→ 7,000 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.77/sh−200$9,154→ 6,800 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.88/sh−96$4,404→ 5,404 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.93/sh−318$14,606→ 4,886 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.97/sh−100$4,597→ 4,686 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.76/sh−186$8,511→ 4,500 total - Exercise/Conversion
Employee Stock Option (Right to buy)
2011-02-23−2,500→ 0 totalExercise: $18.91Exp: 2018-12-02→ DWSN-Common Stock $0.33 1/3 par (2,500 underlying) - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.78/sh−500$22,890→ 6,300 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.79/sh−100$4,579→ 6,200 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.83/sh−300$13,749→ 5,900 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.85/sh−200$9,170→ 5,700 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.86/sh−200$9,172→ 5,500 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.91/sh−200$9,182→ 5,204 total - Sale
DWSN-Common Stock $0.33 1/3 par
2011-02-23$45.94/sh−100$4,594→ 4,786 total
Footnotes (1)
- [F1]The options vest in four equal installments on December 2, 2009, 2010, 2011 and 2012.