| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - SHMERLING | 25 May 2023 | 25 May 2023 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Apr 2023 | 31 Mar 2023 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 - SHMERLING | 24 Mar 2023 | 23 Mar 2023 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2023 | 30 Dec 2022 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2022 | 12 Dec 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Oct 2022 | 30 Sep 2022 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Sep 2022 | 12 Sep 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jul 2022 | 30 Jun 2022 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Jun 2022 | 24 Jun 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Jun 2022 | 10 Jun 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Apr 2022 | 26 Apr 2022 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2022 | 31 Mar 2022 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2022 | 23 Mar 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Mar 2022 | 17 Mar 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Mar 2022 | 10 Mar 2022 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2022 | 31 Dec 2021 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2021 | 10 Dec 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Oct 2021 | 30 Sep 2021 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Sep 2021 | 10 Sep 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jul 2021 | 30 Jun 2021 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jun 2021 | 10 Jun 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Apr 2021 | 27 Apr 2021 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2021 | 31 Mar 2021 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Mar 2021 | 16 Mar 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Mar 2021 | 10 Mar 2021 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Dec 2020 | 31 Dec 2020 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Oct 2020 | 30 Sep 2020 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jul 2020 | 30 Jun 2020 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 29 Apr 2020 | 28 Apr 2020 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2020 | 31 Mar 2020 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Mar 2020 | 17 Mar 2020 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Mar 2020 | 11 Mar 2020 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Dec 2019 | 31 Dec 2019 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Oct 2019 | 01 Oct 2019 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Jul 2019 | 01 Jul 2019 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Apr 2019 | 23 Apr 2019 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2019 | 29 Mar 2019 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Mar 2019 | 15 Mar 2019 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Dec 2018 | 31 Dec 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2018 | 26 Sep 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Aug 2018 | 03 Aug 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jul 2018 | 02 Jul 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Apr 2018 | 24 Apr 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Mar 2018 | 27 Mar 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Mar 2018 | 27 Mar 2018 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Mar 2018 | 19 Mar 2018 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Mar 2018 | 15 Mar 2018 | 000-27701 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2018 | 29 Dec 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Nov 2017 | 10 Nov 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Sep 2017 | 26 Sep 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Aug 2017 | 08 Aug 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Aug 2017 | 07 Aug 2017 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jul 2017 | 30 Jun 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 03 May 2017 | 01 May 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 02 May 2017 | 02 May 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Apr 2017 | 31 Mar 2017 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Mar 2017 | 20 Mar 2017 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Mar 2017 | 16 Mar 2017 | 000-27701 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 14 Feb 2017 | 31 Dec 2016 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jan 2017 | 30 Dec 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Oct 2016 | 30 Sep 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jul 2016 | 30 Jun 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Apr 2016 | 27 Apr 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Apr 2016 | 31 Mar 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Mar 2016 | 17 Mar 2016 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Jan 2016 | 12 Jan 2016 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Dec 2015 | 07 Dec 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Oct 2015 | 07 Oct 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Aug 2015 | 25 Aug 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jul 2015 | 01 Jul 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 May 2015 | 08 May 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Apr 2015 | 28 Apr 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2015 | 31 Mar 2015 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2015 | 25 Mar 2015 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Mar 2015 | 18 Mar 2015 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Mar 2015 | 10 Mar 2015 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jan 2015 | 31 Dec 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Dec 2014 | 29 Dec 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Oct 2014 | 30 Sep 2014 | 001-13253 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 23 Jul 2014 | 18 Mar 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jun 2014 | 25 Jun 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Apr 2014 | 23 Apr 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Apr 2014 | 01 Apr 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Mar 2014 | 18 Mar 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Mar 2014 | 11 Mar 2014 | 000-27701 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Feb 2014 | 03 Feb 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Jan 2014 | 27 Jan 2014 | 001-13253 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jan 2014 | 31 Dec 2013 | 001-13253 |