| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2025 | 14 May 2025 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2024 | 15 May 2024 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 18 May 2023 | 17 May 2023 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2022 | 18 May 2022 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 20 May 2021 | 19 May 2021 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 22 May 2020 | 21 May 2020 | 001-34506 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Dec 2019 | 18 Dec 2019 | 000-50905 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2019 | 16 May 2019 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Aug 2018 | 31 Jul 2018 | 001-34506 |
| 3 | Open Document | Open Filing | FORM 3 | 02 Aug 2018 | 31 Jul 2018 | 001-34506 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Aug 2018 | 31 Jul 2018 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jul 2018 | 01 Jul 2018 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Apr 2018 | 01 Apr 2018 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2018 | 01 Jan 2018 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2017 | 01 Oct 2017 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jul 2017 | 01 Jul 2017 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Apr 2017 | 01 Apr 2017 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2017 | 01 Jan 2017 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2016 | 03 Oct 2016 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jul 2016 | 01 Jul 2016 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2016 | 01 Apr 2016 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2016 | 04 Jan 2016 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Dec 2015 | 29 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Dec 2015 | 24 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Dec 2015 | 22 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Dec 2015 | 18 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2015 | 16 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Dec 2015 | 14 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2015 | 10 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Dec 2015 | 08 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2015 | 07 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Dec 2015 | 04 Dec 2015 | 814-00672 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Oct 2015 | 01 Oct 2015 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jul 2015 | 01 Jul 2015 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2015 | 01 Apr 2015 | 001-33740 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2015 | 02 Jan 2015 | 001-33740 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Oct 2014 | 30 Sep 2014 | 814-00672 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 01 Oct 2014 | 01 Oct 2014 | 001-33740 |
| 4 | Open Document | Open Filing | 2014 RSA - STERN | 01 Jul 2014 | 01 Jul 2014 | 001-33740 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 01 Apr 2014 | 01 Apr 2014 | 001-33740 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 06 Jan 2014 | 02 Jan 2014 | 001-33740 |