| Date Filed | Type | Description |
| 10/11/2023 |
8-K
| Quarterly results |
| 08/04/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 08/02/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 08/01/2023 |
8-K
| Quarterly results |
| 05/25/2023 |
SD
| Form SD - Specialized disclosure report: |
| 05/19/2023 |
S-8
| Form S-8 - Securities to be offered to employees in employee benefit plans: |
| 05/19/2023 |
8-K/A
| Submission of Matters to a Vote of Security Holders Interactive Data |
| 05/02/2023 |
8-K
| Quarterly results |
| 04/06/2023 |
8-K
| Credit agreement amendment |
| 04/05/2023 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 02/10/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/09/2023 |
S-8
| Form S-8 - Securities to be offered to employees in employee benefit plans: |
| 02/01/2023 |
10-Q
| Quarterly Report for the period ended December 31, 2022 |
| 01/31/2023 |
8-K
| Results of Operations and Financial Condition, Other Events Interactive Data |
| 01/23/2023 |
SC 13G/A
| BlackRock Inc. reports a 12.4% stake in POWELL INDUSTRIES INC |
| 01/06/2023 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 12/06/2022 |
10-K
| Annual Report for the period ended September 30, 2022 |
| 12/05/2022 |
8-K
| Quarterly results |
| 08/03/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 08/02/2022 |
8-K
| Results of Operations and Financial Condition, Other Events, Financial Statements and Exhibits Interactive Data |
| 05/27/2022 |
SD
| Form SD - Specialized disclosure report: |
| 05/13/2022 |
8-K
| Quarterly results |
| 05/04/2022 |
10-Q
| Quarterly Report for the period ended March 31, 2022 |
| 05/03/2022 |
8-K
| Quarterly results |
| 05/03/2022 |
8-K
| Quarterly results |
| 02/17/2022 |
8-K
| Submission of Matters to a Vote of Security Holders Interactive Data |
| 02/10/2022 |
SC 13G/A
| VANGUARD GROUP INC reports a 5.1% stake in Powell Industries Inc. |
| 02/09/2022 |
10-Q
| Quarterly Report for the period ended December 31, 2021 |
| 02/08/2022 |
8-K
| Quarterly results |
| 02/08/2022 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/07/2022 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/01/2022 |
8-K
| Other Events, Financial Statements and Exhibits Interactive Data |
| 01/06/2022 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 12/08/2021 |
10-K
| Annual Report for the period ended September 30, 2021 |
|