| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Sep 2025 | 02 Sep 2025 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2024 | 31 Jul 2024 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Aug 2023 | 29 Aug 2023 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Mar 2022 | 11 Mar 2022 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Aug 2020 | 25 Aug 2020 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2019 | 21 Mar 2019 | 001-13463 |
| 4 | Open Document | Open Filing | WELCH 3-28-18 | 28 Mar 2018 | 23 Mar 2018 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2017 | 16 Mar 2017 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Aug 2015 | 13 Aug 2015 | 001-13463 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2014 | 13 Mar 2014 | 001-13463 |