Caldwell Mark Frederick 4
4 · DYNASIL CORP OF AMERICA · Filed May 24, 2011
Insider Transaction Report
Form 4
Caldwell Mark Frederick
Gen Mgr, RMD Instruments Corp
Transactions
- Tax Payment
Common Stock
2011-05-20$1.73/sh−14,027$24,267→ 16,023 total - Exercise/Conversion
Common Stock
2011-05-20$1.73/sh+30,000$51,900→ 30,050 total - Disposition to Issuer
Stock Option
2011-05-20$1.73/sh−30,000$51,900→ 0 totalExercise: $1.73From: 2010-10-20Exp: 2011-10-19→ Common Stock (30,000 underlying)