| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Nov 2021 | 18 Nov 2021 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 30 Jul 2021 | 23 Jul 2021 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 09 Feb 2021 | 05 Feb 2021 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 01 Apr 2020 | 30 Mar 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 18 Mar 2020 | 17 Mar 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 16 Mar 2020 | 12 Mar 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 10 Mar 2020 | 06 Mar 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 02 Mar 2020 | 27 Feb 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 26 Feb 2020 | 24 Feb 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 21 Feb 2020 | 20 Feb 2020 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 23 Dec 2019 | 20 Dec 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 26 Nov 2019 | 22 Nov 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 16 Aug 2019 | 14 Aug 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 08 Aug 2019 | 06 Aug 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 29 May 2019 | 24 May 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 16 May 2019 | 14 May 2019 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 16 May 2018 | 15 May 2018 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 26 Feb 2016 | 24 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 23 Feb 2016 | 19 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 18 Feb 2016 | 16 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 12 Feb 2016 | 10 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 09 Feb 2016 | 05 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 04 Feb 2016 | 02 Feb 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 01 Feb 2016 | 28 Jan 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 21 Jan 2016 | 19 Jan 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 15 Jan 2016 | 13 Jan 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 13 Jan 2016 | 11 Jan 2016 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 15 Dec 2015 | 11 Dec 2015 | 001-33999 |
| 4 | Open Document | Open Filing | 4 | 10 Dec 2015 | 08 Dec 2015 | 001-33999 |
| 3 | Open Document | Open Filing | 3 | 10 Dec 2015 | 08 Dec 2015 | 001-33999 |