Date Filer Title Filing Type Shares Traded Price Total Held
March 17, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 93,886
March 17, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 88,331
March 17, 2015 Director, CEO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 140,000 -- 583,885
March 17, 2015 Controller Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 81,757
February 20, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 199,765 $3.30 2,512,423
December 18, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $2.34 34,331
November 13, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $2.50 23,999
August 15, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 5,000 $3.12 55,081
August 15, 2014 CEO Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $3.12 66,521
August 15, 2014 CEO Form 4/A Open market or private purchase of non-derivative or derivative security 4,000 $3.12 74,521
August 14, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $3.20 30,311
June 27, 2014 Ten Percent Owner Form 3 Initial Statement of Beneficial Ownership of Securities -- -- 2,712,188
June 26, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 5,000 $3.36 50,081
June 20, 2014 Chief Scientific Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 5,000 $3.50 5,000
June 20, 2014 Chief Scientific Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 40,000 -- 40,000
June 20, 2014 Chief Scientific Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 35,000 -- 75,000
June 20, 2014 CMO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 50,000 -- 175,550
June 20, 2014 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 85,551
June 20, 2014 CFO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 10,500 $3.50 20,228
June 20, 2014 CFO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 60,000 -- 166,664
June 20, 2014 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 59,998
June 20, 2014 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 68,886
June 20, 2014 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 40,000 -- 109,162
June 20, 2014 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 63,331
June 20, 2014 Director, CEO Form 4/A Grant, award or other acquisition pursuant to Rule 16b-3(d) 15,000 -- 77,521

For recent transactions, including derivative transactions, see our Section 16 SEC filings page.

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.