| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 5/14/25 ANNUAL GRANT | 16 May 2025 | 14 May 2025 | 001-36041 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2024 | 15 May 2024 | 001-36041 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2023 | 10 May 2023 | 001-36041 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2022 | 18 May 2022 | 001-36041 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Dec 2021 | 16 Dec 2021 | 001-36041 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 16 Dec 2021 | 16 Dec 2021 | 001-36041 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Dec 2021 | 16 Dec 2021 | 000-55428 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Apr 2021 | 08 Apr 2021 | 000-55428 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Dec 2020 | 11 Dec 2020 | 000-55428 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Nov 2020 | 12 Nov 2020 | 000-55428 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Mar 2020 | 06 Mar 2020 | 000-54674 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Mar 2020 | 06 Mar 2020 | 000-55772 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Mar 2020 | 06 Mar 2020 | 000-55428 |
| 3 | Open Document | Open Filing | FORM 3 | 21 Apr 2017 | 21 Apr 2017 | 000-55772 |
| 3 | Open Document | Open Filing | FORM 3 | 20 Apr 2015 | 20 Apr 2015 | 000-55428 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Dec 2013 | 13 Dec 2013 | 000-54674 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Sep 2012 | 06 Sep 2012 | 000-54674 |
| 3 | Open Document | Open Filing | FORM 3 | 27 Apr 2012 | 27 Apr 2012 | 333-160748 |