|
2026-05-06 |
2026-05-04 |
V
Vente
|
Chief Financial Officer
Dirigeant
|
98 788
-35.0%
35,43
2 087 516 $US
|
98 788
-35.0%
|
35,43
|
2 087 516 $US
|
|
|
2026-03-24 |
2026-03-23 |
A
Achat
|
Administrateur non-exécutif
|
98 517
-29.2%
99,91
407 339 $US
|
98 517
-29.2%
|
99,91
|
407 339 $US
|
|
|
2026-03-19 |
2026-03-17 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
6 749
-15.8%
341,85
2 566 132 $US
|
6 749
-15.8%
|
341,85
|
2 566 132 $US
|
|
|
2026-03-16 |
2026-03-16 |
A
Achat
|
Gen Counsel, Corp Secretary
Dirigeant
|
1 000
+1.0%
1,92
1 918 $US
|
1 000
+1.0%
|
1,92
|
1 918 $US
|
|
|
2026-03-17 |
2026-03-13 |
A
Achat
|
Administrateur non-exécutif
|
77 500
+80.3%
1,95
151 009 $US
|
77 500
+80.3%
|
1,95
|
151 009 $US
|
|
|
2026-03-16 |
2026-03-12 |
A
Achat
|
Gen Counsel, Corp Secretary
Dirigeant
|
1 000
+1.0%
1,92
1 918 $US
|
1 000
+1.0%
|
1,92
|
1 918 $US
|
|
|
2025-11-13 |
2025-11-11 |
A
Achat
|
Administrateur non-exécutif
|
28 638
+12.7%
3,54
101 487 $US
|
28 638
+12.7%
|
3,54
|
101 487 $US
|
|
|
2025-11-13 |
2025-11-11 |
A
Achat
|
Chief Financial Officer
Dirigeant
|
6 000
+10.2%
3,55
21 310 $US
|
6 000
+10.2%
|
3,55
|
21 310 $US
|
|
|
2025-11-13 |
2025-11-10 |
A
Achat
|
Chief Financial Officer
Dirigeant
|
9 000
+18.0%
3,74
33 660 $US
|
9 000
+18.0%
|
3,74
|
33 660 $US
|
|
|
2025-11-12 |
2025-11-10 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
50 000
+241.3%
3,79
189 590 $US
|
50 000
+241.3%
|
3,79
|
189 590 $US
|
|
|
2025-08-06 |
2025-08-04 |
V
Vente
|
Gen Counsel, Corp Secretary
Dirigeant
|
2 591
-3.0%
5,20
13 473 $US
|
2 591
-3.0%
|
5,20
|
13 473 $US
|
|
|
2025-08-06 |
2025-08-04 |
V
Vente
|
Chief Accounting Officer
Dirigeant
|
2 742
-3.6%
5,20
14 258 $US
|
2 742
-3.6%
|
5,20
|
14 258 $US
|
|
|
2025-08-06 |
2025-08-04 |
V
Vente
|
Chief Operating Officer
Dirigeant
|
1 782
-1.3%
5,20
9 266 $US
|
1 782
-1.3%
|
5,20
|
9 266 $US
|
|
|
2025-08-06 |
2025-08-04 |
V
Vente
|
Chief Technology Officer
Dirigeant
|
3 052
-0.8%
5,20
15 870 $US
|
3 052
-0.8%
|
5,20
|
15 870 $US
|
|
|
2025-05-28 |
2025-05-23 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
25 000
+5.5%
4,10
102 500 $US
|
25 000
+5.5%
|
4,10
|
102 500 $US
|
|
|
2025-05-28 |
2025-05-23 |
A
Achat
|
Administrateur non-exécutif
|
50 000
+15.4%
4,10
205 000 $US
|
50 000
+15.4%
|
4,10
|
205 000 $US
|
|
|
2025-05-27 |
2025-05-23 |
A
Achat
|
Administrateur non-exécutif
|
75 000
+49.6%
4,10
307 500 $US
|
75 000
+49.6%
|
4,10
|
307 500 $US
|
|
|
2025-05-20 |
2025-05-16 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
16 000
+4.5%
4,61
73 760 $US
|
16 000
+4.5%
|
4,61
|
73 760 $US
|
|
|
2025-05-15 |
2025-05-14 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
12 535
+153.2%
3,93
49 263 $US
|
12 535
+153.2%
|
3,93
|
49 263 $US
|
|
|
2025-05-15 |
2025-05-13 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
2 921
+55.5%
4,00
11 684 $US
|
2 921
+55.5%
|
4,00
|
11 684 $US
|
|
|
2025-05-14 |
2025-05-12 |
A
Achat
|
Chief Operating Officer
Dirigeant
|
400
+0.3%
4,02
1 608 $US
|
400
+0.3%
|
4,02
|
1 608 $US
|
|
|
2025-05-13 |
2025-05-12 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
4 680
+804.1%
4,00
18 720 $US
|
4 680
+804.1%
|
4,00
|
18 720 $US
|
|
|
2025-05-13 |
2025-05-09 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
582
+inf%
3,60
2 095 $US
|
582
+inf%
|
3,60
|
2 095 $US
|
|
|
2025-03-25 |
2025-03-24 |
V
Vente
|
Chief Operating Officer
Dirigeant
|
5 233
-3.6%
4,68
24 490 $US
|
5 233
-3.6%
|
4,68
|
24 490 $US
|
|
|
2025-03-25 |
2025-03-24 |
V
Vente
|
Chief Technology Officer
Dirigeant
|
6 596
-1.8%
4,68
30 869 $US
|
6 596
-1.8%
|
4,68
|
30 869 $US
|
|
|
2025-03-25 |
2025-03-24 |
V
Vente
|
Chief Accounting Officer
Dirigeant
|
3 557
-4.5%
4,68
16 647 $US
|
3 557
-4.5%
|
4,68
|
16 647 $US
|
|
|
2025-03-25 |
2025-03-24 |
V
Vente
|
Gen Counsel, Corp Secretary
Dirigeant
|
5 202
-5.8%
4,68
24 345 $US
|
5 202
-5.8%
|
4,68
|
24 345 $US
|
|
|
2024-09-24 |
2024-09-23 |
A
Achat
|
Chief Executive Officer
Administrateur exécutif
|
25 000
+5.9%
5,25
131 250 $US
|
25 000
+5.9%
|
5,25
|
131 250 $US
|
|
|
2023-11-21 |
2023-11-21 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
25 000
+11.0%
2,53
63 300 $US
|
25 000
+11.0%
|
2,53
|
63 300 $US
|
|
|
2023-11-21 |
2023-11-20 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
35 000
+18.2%
2,48
86 908 $US
|
35 000
+18.2%
|
2,48
|
86 908 $US
|
|
|
2023-11-21 |
2023-11-17 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
30 000
+18.5%
2,45
73 386 $US
|
30 000
+18.5%
|
2,45
|
73 386 $US
|
|
|
2023-11-20 |
2023-11-16 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
25 000
+18.3%
2,45
61 208 $US
|
25 000
+18.3%
|
2,45
|
61 208 $US
|
|
|
2023-11-20 |
2023-11-16 |
A
Achat
|
Chief Technology Officer
Dirigeant
|
30 000
+28.1%
2,43
72 849 $US
|
30 000
+28.1%
|
2,43
|
72 849 $US
|
|
|
2023-03-13 |
2023-03-09 |
V
Vente
|
Administrateur non-exécutif
|
154 293
-24.4%
4,00
617 172 $US
|
154 293
-24.4%
|
4,00
|
617 172 $US
|
|
|
2023-02-03 |
2023-02-01 |
A
Achat
|
Administrateur non-exécutif
|
52 742
+inf%
4,00
210 968 $US
|
52 742
+inf%
|
4,00
|
210 968 $US
|
|
|
2023-02-03 |
2023-02-01 |
A
Achat
|
Administrateur non-exécutif
|
6 526
+inf%
4,00
26 104 $US
|
6 526
+inf%
|
4,00
|
26 104 $US
|
|
|
2023-02-03 |
2023-02-01 |
A
Achat
|
Administrateur non-exécutif
|
1 197 124
+inf%
4,00
4 788 496 $US
|
1 197 124
+inf%
|
4,00
|
4 788 496 $US
|
|
|
2023-02-03 |
2023-02-01 |
A
Achat
|
Administrateur non-exécutif
|
631 866
+inf%
4,00
2 527 464 $US
|
631 866
+inf%
|
4,00
|
2 527 464 $US
|
|
|
2020-01-02 |
2019-12-31 |
A
Achat
|
|
104 444
+5.6%
10,39
1 085 434 $US
|
104 444
+5.6%
|
10,39
|
1 085 434 $US
|
|
|
2020-01-02 |
2019-12-30 |
A
Achat
|
|
21 943
+1.2%
10,29
225 717 $US
|
21 943
+1.2%
|
10,29
|
225 717 $US
|
|
|
2019-11-22 |
2019-11-22 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
23 843
+1.3%
10,84
258 525 $US
|
23 843
+1.3%
|
10,84
|
258 525 $US
|
|
|
2019-11-22 |
2019-11-21 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
62 458
+3.6%
10,50
655 534 $US
|
62 458
+3.6%
|
10,50
|
655 534 $US
|
|
|
2019-11-22 |
2019-11-20 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
180 542
+11.5%
10,41
1 879 316 $US
|
180 542
+11.5%
|
10,41
|
1 879 316 $US
|
|
|
2019-10-29 |
2019-09-06 |
A
Achat
|
|
10 800
+0.7%
12,88
139 052 $US
|
10 800
+0.7%
|
12,88
|
139 052 $US
|
|
|
2019-09-05 |
2019-09-04 |
A
Achat
|
|
200
+0.0%
12,47
2 494 $US
|
200
+0.0%
|
12,47
|
2 494 $US
|
|
|
2019-09-05 |
2019-09-03 |
A
Achat
|
|
50 000
+3.3%
12,35
617 550 $US
|
50 000
+3.3%
|
12,35
|
617 550 $US
|
|
|
2019-08-29 |
2019-08-27 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
25 000
+1.7%
12,49
312 208 $US
|
25 000
+1.7%
|
12,49
|
312 208 $US
|
|
|
2019-08-27 |
2019-08-26 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
6 747
+0.5%
12,44
83 964 $US
|
6 747
+0.5%
|
12,44
|
83 964 $US
|
|
|
2019-08-27 |
2019-08-23 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
19 000
+1.3%
12,43
236 218 $US
|
19 000
+1.3%
|
12,43
|
236 218 $US
|
|
|
2019-08-23 |
2019-08-22 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
3 200
+0.2%
12,64
40 462 $US
|
3 200
+0.2%
|
12,64
|
40 462 $US
|
|
|
2019-08-23 |
2019-08-21 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
25 000
+1.7%
12,19
304 855 $US
|
25 000
+1.7%
|
12,19
|
304 855 $US
|
|
|
2019-08-21 |
2019-08-20 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
15 700
+1.1%
12,04
188 951 $US
|
15 700
+1.1%
|
12,04
|
188 951 $US
|
|
|
2019-08-21 |
2019-08-19 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
40 543
+2.9%
11,88
481 509 $US
|
40 543
+2.9%
|
11,88
|
481 509 $US
|
|
|
2019-01-03 |
2018-12-31 |
A
Achat
|
Administrateur non-exécutif
|
55 000
+4.2%
10,34
568 794 $US
|
55 000
+4.2%
|
10,34
|
568 794 $US
|
|
|
2019-01-03 |
2018-12-31 |
V
Vente
|
Administrateur non-exécutif
|
45 000
-3.3%
10,28
462 740 $US
|
45 000
-3.3%
|
10,28
|
462 740 $US
|
|
|
2018-12-31 |
2018-12-28 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
55 000
+4.2%
9,99
549 312 $US
|
55 000
+4.2%
|
9,99
|
549 312 $US
|
|
|
2018-12-31 |
2018-12-28 |
V
Vente
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
50 000
-3.7%
9,94
496 980 $US
|
50 000
-3.7%
|
9,94
|
496 980 $US
|
|
|
2018-12-31 |
2018-12-27 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
10 000
+0.7%
9,85
98 530 $US
|
10 000
+0.7%
|
9,85
|
98 530 $US
|
|
|
2018-07-03 |
2018-06-29 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
27 011
+2.1%
11,29
304 822 $US
|
27 011
+2.1%
|
11,29
|
304 822 $US
|
|
|
2018-07-02 |
2018-06-28 |
A
Achat
|
Alta Fundamental Advisers LLC
Administrateur non-exécutif
|
20 020
+1.6%
11,11
222 464 $US
|
20 020
+1.6%
|
11,11
|
222 464 $US
|
|
|
2018-05-29 |
2018-05-24 |
V
Vente
|
Hanson Ron
SVP of Operations of ADA-ES
Dirigeant
|
1 228
-3.5%
11,12
13 655 $US
|
1 228
-3.5%
|
11,12
|
13 655 $US
|
|
|
2017-12-15 |
2017-12-14 |
A
Achat
|
Alta Fundamental Advisers LLC
|
18 246
+1.4%
9,86
179 860 $US
|
18 246
+1.4%
|
9,86
|
179 860 $US
|
|
|
2017-12-15 |
2017-12-13 |
A
Achat
|
Alta Fundamental Advisers LLC
|
244 020
+23.8%
9,89
2 413 285 $US
|
244 020
+23.8%
|
9,89
|
2 413 285 $US
|
|
|
2017-12-08 |
2017-12-06 |
V
Vente
|
GABBARD ALAN BRADLEY
|
10 000
-22.5%
8,17
81 717 $US
|
10 000
-22.5%
|
8,17
|
81 717 $US
|
|
|
2017-06-30 |
2017-06-28 |
V
Vente
|
GABBARD ALAN BRADLEY
|
2 000
-4.8%
9,21
18 426 $US
|
2 000
-4.8%
|
9,21
|
18 426 $US
|
|
|
2017-06-30 |
2017-06-28 |
V
Vente
|
GABBARD ALAN BRADLEY
|
2 700
-6.1%
9,20
24 840 $US
|
2 700
-6.1%
|
9,20
|
24 840 $US
|
|
|
2017-06-27 |
2017-06-23 |
V
Vente
|
GABBARD ALAN BRADLEY
|
300
-0.7%
9,52
2 856 $US
|
300
-0.7%
|
9,52
|
2 856 $US
|
|
|
2017-01-24 |
2017-01-20 |
A
Achat
|
Alta Fundamental Advisers LLC
|
231 271
+26.8%
9,00
2 081 439 $US
|
231 271
+26.8%
|
9,00
|
2 081 439 $US
|
|
|
2014-10-06 |
2014-10-02 |
A
Achat
|
Coliseum Capital Management, LLC
Administrateur non-exécutif
|
375 000
+21.8%
20,97
7 863 750 $US
|
375 000
+21.8%
|
20,97
|
7 863 750 $US
|
|
|
2014-01-15 |
2014-01-13 |
PlS
Vente planifiée
|
DURHAM MICHAEL D
President & CEO
Administrateur exécutif
|
1 201
-0.5%
53,05
63 713 $US
|
1 201
-0.5%
|
53,05
|
63 713 $US
|
|
|
2014-01-07 |
2014-01-03 |
PlS
Vente planifiée
|
LAGARENNE JONATHAN R
Executive Vice President
Dirigeant
|
1 000
-6.4%
54,10
54 100 $US
|
1 000
-6.4%
|
54,10
|
54 100 $US
|
|
|
2014-01-07 |
2014-01-03 |
PlS
Vente planifiée
|
LAGARENNE JONATHAN R
Executive Vice President
Dirigeant
|
1 000
-6.0%
54,07
54 070 $US
|
1 000
-6.0%
|
54,07
|
54 070 $US
|
|
|
2013-12-09 |
2013-12-06 |
PlS
Vente planifiée
|
MCKINNIES MARK H
SVP and CFO
Administrateur exécutif
|
1 000
-1.2%
56,43
56 430 $US
|
1 000
-1.2%
|
56,43
|
56 430 $US
|
|
|
2013-12-04 |
2013-12-03 |
PlS
Vente planifiée
|
MCKINNIES MARK H
SVP and CFO
Dirigeant
|
1 000
-1.2%
55,74
55 740 $US
|
1 000
-1.2%
|
55,74
|
55 740 $US
|
|