Date Filer Title Filing Type Shares Traded Price Total Held
February 25, 2008
PACE GARY W
 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,000 $6.17 20,349
October 2, 2018
Hooper Robert W
 Director Form 4 Open market or private purchase of non-derivative or derivative security 5,100 $2.70 20,787
May 17, 2012
Fritz Frederick J.
 Director Form 4 Open market or private purchase of non-derivative or derivative security 5,000 $1.93 21,000
May 30, 2017
Hooper Robert W
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 21,429 -- 21,249
November 16, 2005
DEASEY ANTHONY P
 EVP, CFO Form 4 Open market or private purchase of non-derivative or derivative security 21,300 $0.29 21,300
March 14, 2014
Fritz Frederick J.
 Director Form 4 Open market or private purchase of non-derivative or derivative security 2,500 $3.86 21,331
April 13, 2010
Tumminello Timothy J
 Interim Chief Accounting Off. Form 4 Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 700 -- 21,400
May 30, 2017
Fritz Frederick J.
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 21,429 -- 21,429
May 30, 2017
Martinez Alberto R Jr
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 21,429 -- 21,429
March 6, 2019
Fritz Frederick J.
 Director Form 4 Open market or private purchase of non-derivative or derivative security 3,400 $2.13 21,491
May 30, 2017
Anwer Khursheed
 Chief Scientific Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 21,786 -- 21,786
June 13, 2022
Braun Donald P
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 6,250 -- 22,587
May 26, 2011
WEAVER GREGORY L
 Director Form 4 Open market or private purchase of non-derivative or derivative security 8,636 $2.77 23,636
November 13, 2014
Hooper Robert W
 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $2.50 23,999
May 16, 2019
Martinez Alberto R Jr
 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $2.15 24,000
May 30, 2017
Chow Pok Yu Augustine
 Director Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 24,286 -- 24,286
February 26, 2008
PACE GARY W
 Director Form 4 Open market or private purchase of non-derivative or derivative security 4,000 $6.27 24,349
July 6, 2010
CHURCH JEFFREY WAYNE
 Chief Financial Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 -- 25,000
February 19, 2010
Tumminello Timothy J
 Interim CAO, Controller Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 10,000 $2.94 25,000
December 8, 2008
Moran Sean F.
 Chief Financial Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 25,000 $3.00 25,000
February 19, 2008
Susie Paul B.
 Chief Accounting Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 $5.50 25,000
February 19, 2008
Susie Paul B.
 Chief Accounting Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 $5.50 25,000
February 19, 2008
Susie Paul B.
 Chief Accounting Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 $5.50 25,000
February 19, 2008
Susie Paul B.
 Chief Accounting Officer Form 4 Grant, award or other acquisition pursuant to Rule 16b-3(d) 2,500 $5.50 25,000
November 14, 2005
DEASEY ANTHONY P
 EVP, CFO Form 4 Open market or private purchase of non-derivative or derivative security 25,000 $0.32 25,000

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.