SEC EDGAR filings, ownership reports, and insider transactions for Dave Ristow.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Sep 2021 | 01 Sep 2021 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2021 | 29 Jan 2021 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2020 | 15 Dec 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2020 | 10 Dec 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Oct 2020 | 30 Sep 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Mar 2020 | 03 Mar 2020 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2019 | 15 Dec 2019 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2019 | 10 Dec 2019 | 000-20728 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Nov 2019 | 07 Nov 2019 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Mar 2019 | 05 Mar 2019 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Dec 2018 | 15 Dec 2018 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Dec 2018 | 10 Dec 2018 | 000-20728 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2018 | 15 May 2018 | 000-20728 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Nov 2017 | 07 Nov 2017 | 000-20728 |