| Date Filed | Type | Description |
| 10/04/2023 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 19,047 restricted stock units
@ $0 |
|
| 07/06/2023 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 14,705 restricted stock units
@ $0 |
|
| 04/04/2023 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 25,062 restricted stock units
@ $0 |
|
| 01/04/2023 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 37,278 restricted stock units
@ $0 |
|
| 10/04/2022 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 20,946 restricted stock units
@ $0 |
|
| 07/13/2022 |
4
| HOFFMAN Robert Thurston Sr (10% Owner) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Bought 1,591,594 shares
@ $1.11, valued at
$1.8M
|
|
| 07/07/2022 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 04/04/2022 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 12,121 restricted stock units
@ $0 |
|
| 01/05/2022 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 13,888 restricted stock units
@ $0 |
|
| 11/18/2021 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 12,500 restricted stock units
@ $0 |
|
| 08/26/2021 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 01/25/2021 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 11/23/2020 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 20,000 options to buy
@ $2.38, valued at
$47.6k
|
|
| 08/20/2020 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 20,000 options to buy
@ $2.3, valued at
$46k
|
|
| 05/20/2020 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 20,000 options to buy
@ $0.54, valued at
$10.8k
|
|
| 04/03/2020 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on ClearSign Technologies Corp|
Txns:
| Granted 20,000 options to buy
@ $0.72, valued at
$14.4k
|
|
| 10/31/2019 |
4/A
| Form 4/A - Statement of changes in beneficial ownership of securities: [Amend] |
| 07/03/2019 |
4
| Form 4 - Statement of changes in beneficial ownership of securities: |
| 05/13/2019 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on CLEARSIGN COMBUSTION CORP|
Txns:
| Granted 21,625 options to buy
@ $1, valued at
$21.6k
|
|
| 01/04/2019 |
4
| HOFFMAN Robert Thurston Sr (Director) has filed a Form 4 on CLEARSIGN COMBUSTION CORP|
Txns:
| Granted 13,153 shares
@ $0 |
|
| 07/30/2018 |
3
| HOFFMAN Robert Thurston Sr (10% Owner) has filed a Form 3 on CLEARSIGN COMBUSTION CORP |