Date Filer Title Filing Type Shares Traded Price Total Held
February 2, 2016 Director, CEO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 150,000 -- 798,885
February 2, 2016 Controller Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 7,500 $1.33 10,652
February 2, 2016 Controller Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 20,000 -- 101,757
February 2, 2016 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 5,000 $1.33 5,000
December 15, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 30,000
December 15, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 30,000 -- 30,000
December 3, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 5,556 $2.08 2,421,867
December 1, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 15,000 $2.15 2,427,423
November 30, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 20,000 $2.15 2,442,423
September 8, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 10,000 $2.11 2,462,423
August 17, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 10,000 $2.19 2,472,423
August 13, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 20,000 $2.23 2,482,423
August 10, 2015 Director, CEO Form 4 Open market or private purchase of non-derivative or derivative security 5,000 $2.29 79,521
August 5, 2015 Ten Percent Owner Form 4 Open market or private sale of non-derivative or derivative security 10,000 $2.26 2,502,423
June 19, 2015 Director, CEO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 65,000 -- 648,885
May 13, 2015 Director Form 4 Open market or private purchase of non-derivative or derivative security 5,000 $2.50 60,081
March 17, 2015 Chief Scientific Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 37,500 -- 112,500
March 17, 2015 CMO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 50,000 -- 225,550
March 17, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 110,551
March 17, 2015 CFO Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 50,000 -- 216,664
March 17, 2015 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 84,998
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

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.