Purchase
WONG JOSEPH M officer: Chief Technology Officer officer: Chief Technology Officer
Common Stock 25,000 $2.53 $63,300 Purchase
WONG JOSEPH M officer: Chief Technology Officer officer: Chief Technology Officer
Common Stock 35,000 $2.48 $86,905 Purchase
WONG JOSEPH M officer: Chief Technology Officer officer: Chief Technology Officer
Common Stock 30,000 $2.45 $73,380 Purchase
WONG JOSEPH M officer: Chief Technology Officer officer: Chief Technology Officer
Common Stock 25,000 $2.45 $61,200 Purchase
WONG JOSEPH M officer: Chief Technology Officer officer: Chief Technology Officer
Common Stock 30,000 $2.43 $72,840 Sale
BLANK JEREMY director director
Common Stock 154,293 $4 $617,172 Purchase
MCINTYRE JULIAN ALEXANDER director director
Common Stock 6,526 $4 $26,104 Purchase
MCINTYRE JULIAN ALEXANDER director director
Common Stock 1,197,124 $4 $4,788,496 Purchase
CAMPBELL-BREEDEN RICHARD director director
Common Stock 52,742 $4 $210,968 Purchase
BLANK JEREMY director director
Common Stock 631,866 $4 $2,527,464 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 104,444 $10.39 $1,085,486 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 21,943 $10.29 $225,728 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 23,843 $10.84 $258,530 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 62,458 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 180,542 $10.41 $1,879,262 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 10,800 $12.88 $139,050 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 200 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 50,000 $12.35 $617,550 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 25,000 $12.49 $312,200 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 6,747 $12.45 $83,966 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 19,000 $12.43 $236,227 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 3,200 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 25,000 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 15,700 $12.04 $188,950 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 40,543 $11.88 $481,529 Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Common Stock 185,332 $4.5 $833,994 Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Stock Option (right to buy) 92,666 $9 $833,994 Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Common Stock 185,332 $4.5 $833,994 Sale
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 45,000 $10.28 $462,735 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 55,000 $10.34 $568,810 Sale
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 50,000 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 55,000 $9.99 $549,340 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 10,000 $9.85 $98,530 Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Common Stock 92,666 $8.25 $764,495 Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Stock Option (right to buy) 92,666 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 27,011 $11.29 $304,819 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 20,020 N/A N/A Sale
HANSON RON officer: SVP of Operations of ADA-ES officer: SVP of Operations of A..
Common Stock 1,228 $11.12 $13,655 Option
SJOSTROM SHARON officer: Chief Product Officer officer: Chief Product Officer
Performance Share Units 8,510 N/A N/A Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Performance Share Units 29,166 N/A N/A Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Common Stock 12,304 N/A N/A Option
SJOSTROM SHARON officer: Chief Product Officer officer: Chief Product Officer
Common Stock 4,068 N/A N/A Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 18,246 $9.86 $179,869 Purchase
ALTA FUNDAMENTAL ADVISERS LLC director director
Common Stock 244,020 $9.89 $2,413,358 Sale
GABBARD ALAN BRADLEY director director
Common Stock 10,000 $8.17 $81,720 Sale
GABBARD ALAN BRADLEY director director
Common Stock 4,700 $9.21 $43,268 Sale
GABBARD ALAN BRADLEY director director
Common Stock 300 $9.52 $2,856 Option
SJOSTROM SHARON officer: Chief Product Officer officer: Chief Product Officer
Common Stock 1,626 N/A N/A Option
SJOSTROM SHARON officer: Chief Product Officer officer: Chief Product Officer
Performance Share Units 5,780 N/A N/A Option
SAMPSON L HEATH director, officer: President & CEO director, officer: President & ..
Performance Share Units 8,932 N/A N/A