1. Insider Transaction: $SOTK Sale at $1.19 per share of 20000 shares by Officer Coccio Christopher L on 2014-07-17.

  2. Insider Transaction: $SOTK Purchase at $0.51 per share of 12500 shares by Officer Harshbarger R Stephen on 2013-04-19.

  3. Insider Transaction: $SOTK Purchase at $0.49 per share of 5000 shares by Officer Riemer Joseph on 2013-04-03.

  4. Insider Transaction: $SOTK Purchase at $0.53 per share of 4500 shares by Officer Riemer Joseph on 2013-02-25.

  5. Insider Transaction: $SOTK Purchase at $0.47 per share of 6509 shares by Officer Riemer Joseph on 2013-01-28.

  6. Insider Transaction: $SOTK Purchase at $0.51 per share of 10000 shares by Officer Riemer Joseph on 2013-01-25.

  7. Insider Transaction: $SOTK Purchase at $0.50 per share of 8300 shares by Officer Riemer Joseph on 2013-01-16.

  8. Insider Transaction: $SOTK Purchase at $0.50 per share of 3800 shares by Officer Riemer Joseph on 2012-12-21.

  9. Insider Transaction: $SOTK Purchase at $0.51 per share of 6000 shares by Officer Riemer Joseph on 2012-11-29.

  10. Insider Transaction: $SOTK Purchase at $0.53 per share of 6800 shares by Officer Riemer Joseph on 2012-11-21.

  11. Insider Transaction: $SOTK Purchase at $0.62 per share of 15000 shares by Officer Harshbarger R Stephen on 2012-11-09.

  12. Insider Transaction: $SOTK Purchase at $0.54 per share of 10000 shares by Officer Riemer Joseph on 2012-11-13.

  13. Insider Transaction: $SOTK Purchase at $0.66 per share of 5000 shares by Officer Riemer Joseph on 2012-11-05.

  14. Insider Transaction: $SOTK Purchase at $0.66 per share of 5000 shares by Officer Riemer Joseph on 2012-10-15.

  15. Insider Transaction: $SOTK Purchase at $0.25 per share of 20000 shares by Director Mowbray Donald F on 2012-09-11.