| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jun 2025 | 11 Jun 2025 | 001-42695 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Jun 2025 | 11 Jun 2025 | 001-42695 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2018 | 23 May 2018 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2017 | 10 Nov 2017 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 May 2017 | 25 May 2017 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Dec 2016 | 21 Dec 2016 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Dec 2016 | 19 Dec 2016 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Jun 2016 | 13 Jun 2016 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2016 | 20 May 2016 | 000-21088 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2015 | 21 May 2015 | 000-21088 |
| 4 | Open Document | Open Filing | MERTON 2014 GRANT | 23 May 2014 | 22 May 2014 | 000-21088 |