Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing since 12/18/2024, newest first.
| Issuer | % of Class | Filed |
|---|---|---|
|
Fuel Tech, Inc.
13G/A
Amendment 6
FTEK · 359523107
|
4.9% |
10/7/2026
Event 3/31/2026
|
|
Geospace Technologies Corp
13G
GEOS · 37364X109
|
6.1% |
10/7/2026
Event 9/30/2026
|
|
Fuel Tech, Inc.
13G/A
Amendment 5
FTEK · 359523107
|
5.0% |
4/6/2026
Event 3/31/2026
|
|
Westport Fuel Systems Inc.
13G/A
Amendment 1
WPRT · 960908507
|
6.7% |
1/27/2026
Event 12/31/2025
|
|
Orion Energy Systems, Inc.
13G/A
Amendment 3
OESX · 686275207
|
6.3% |
1/27/2026
Event 12/31/2025
|
|
Broadwind, Inc.
13G/A
Amendment 14
BWEN · 11161T207
|
8.8% |
1/27/2026
Event 12/31/2025
|
|
Fuel Tech, Inc.
13G/A
Amendment 4
FTEK · 359523107
|
4.8% |
11/3/2025
Event 10/31/2025
|
|
Westport Fuel Systems Inc.
13G
WPRT · 960908507
|
6.1% |
2/5/2025
Event 12/31/2024
|
|
Orion Energy Systems, Inc.
13G/A
Amendment 2
OESX · 686275108
|
8.5% |
2/5/2025
Event 12/31/2024
|
|
Fuel Tech, Inc.
13G/A
Amendment 3
FTEK · 359523107
|
6.2% |
2/5/2025
Event 12/31/2024
|
|
Broadwind, Inc.
13G/A
Amendment 13
BWEN · 11161T207
|
9.0% |
2/5/2025
Event 12/31/2024
|