| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2021 | 13 May 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2021 | 11 May 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2021 | 06 May 2021 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2020 | 12 May 2020 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2020 | 11 May 2020 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2019 | 09 May 2019 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2019 | 08 May 2019 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Nov 2018 | 01 Nov 2018 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2018 | 01 Aug 2018 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 May 2017 | 12 May 2017 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 May 2017 | 04 May 2017 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2016 | 06 May 2016 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2016 | 02 May 2016 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jul 2015 | 28 Jul 2015 | 000-19969 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2015 | 11 May 2015 | 000-19969 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 22 Oct 2014 | 16 Oct 2014 | 000-19969 |