Date Filer Title Filing Type Shares Traded Price Total Held
December 5, 2011 CEO Form 4 Open market or private purchase of non-derivative or derivative security 1,828 $2.21 166,016
September 14, 2012 CEO Form 4 Open market or private purchase of non-derivative or derivative security 1,900 $5.04 196,014
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 16,430
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 18,429
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 4,667
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 30,099
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 9,666
March 17, 2023 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 9,666
February 17, 2016 Director, CEO Form 4 Open market or private purchase of non-derivative or derivative security 2,000 $1.27 117,521
September 14, 2012 SVP Corp Bus Strategy/IR Form 4 Open market or private purchase of non-derivative or derivative security 2,000 $4.93 18,787
February 25, 2008 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,000 $6.17 20,349
March 15, 2006 VP - Operations Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,000 -- 8,534
February 19, 2010 Interim CAO, Controller Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,040 $2.94 2,040
November 19, 2008 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,100 $2.70 122,562
March 15, 2006 VP - Regulatory Affairs Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,369 -- 2,369
January 14, 2011 Chief Medical Officer Form 4 Open market or private purchase of non-derivative or derivative security 2,499 -- 2,500
June 13, 2022 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 -- 7,666
June 13, 2022 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 -- 7,666
September 20, 2018 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $2.70 18,091
September 20, 2018 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $2.70 14,750
April 9, 2018 Director, Chairman, President and CEO Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $2.30 20,200
March 14, 2014 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $3.86 21,331
October 15, 2012 Director Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 2,500 $2.36 122,042
October 15, 2012 Director Form 4 Exercise of in-the-money or at-the-money derivative security 2,500 $2.36 34,583
August 29, 2012 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $4.65 68,427

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.