| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | 28 Jun 2023 | |||
| 4 | Open Document | Open Filing | 28 Jun 2023 | 26 Jun 2023 | 001-40597 | |
| SC 13D/A | Open Document | Open Filing | 05 Aug 2020 | |||
| 4 | Open Document | Open Filing | 05 Aug 2020 | 31 Jul 2020 | 000-54954 | |
| 4 | Open Document | Open Filing | 02 Apr 2018 | 31 Jan 2018 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 02 Apr 2018 | |||
| SC 13D/A | Open Document | Open Filing | 13 Nov 2017 | |||
| 4 | Open Document | Open Filing | 09 Nov 2017 | 31 Oct 2017 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 31 Aug 2017 | |||
| 4 | Open Document | Open Filing | 31 Aug 2017 | 27 Jul 2017 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 06 Jun 2017 | |||
| 4 | Open Document | Open Filing | 06 Jun 2017 | 30 Apr 2017 | 000-54954 | |
| 4 | Open Document | Open Filing | 07 Feb 2017 | 31 Jan 2017 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 07 Feb 2017 | |||
| 4 | Open Document | Open Filing | 06 Feb 2017 | 31 Oct 2016 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 30 Nov 2016 | |||
| 4 | Open Document | Open Filing | 28 Sep 2016 | 31 Jul 2016 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 28 Sep 2016 | |||
| 4 | Open Document | Open Filing | 17 May 2016 | 30 Apr 2016 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 17 May 2016 | |||
| 4/A | Open Document | Open Filing | 09 May 2016 | 31 Jan 2016 | 000-54954 | |
| SC 13D/A | Open Document | Open Filing | 04 May 2016 | |||
| 4 | Open Document | Open Filing | 04 May 2016 | 31 Jan 2016 | 000-54954 | |
| 4 | Open Document | Open Filing | 22 Dec 2015 | 18 Dec 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 02 Dec 2015 | 25 Nov 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 17 Nov 2015 | 13 Nov 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 12 Nov 2015 | 10 Nov 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 12 Nov 2015 | 03 Nov 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 30 Sep 2015 | 22 Sep 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 24 Sep 2015 | 22 Sep 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 21 Sep 2015 | 17 Sep 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 08 Sep 2015 | 03 Sep 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 03 Sep 2015 | 31 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 01 Sep 2015 | 26 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 26 Aug 2015 | 24 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 19 Aug 2015 | 18 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 18 Aug 2015 | 14 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 17 Aug 2015 | 12 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 12 Aug 2015 | 11 Aug 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 12 Aug 2015 | 10 Aug 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 04 Aug 2015 | 08 Jul 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 20 Jul 2015 | 17 Jul 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 17 Jul 2015 | 14 Jul 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 09 Jul 2015 | 08 Jul 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 06 Jul 2015 | 02 Jul 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 01 Jul 2015 | 30 Jun 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 18 Jun 2015 | 17 Jun 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 16 Jun 2015 | 12 Jun 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 27 May 2015 | 22 May 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 05 May 2015 | 01 May 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 31 Mar 2015 | 23 Mar 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 31 Mar 2015 | 13 Feb 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 31 Mar 2015 | 05 Feb 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 31 Mar 2015 | 03 Feb 2015 | 000-54954 | |
| 4/A | Open Document | Open Filing | 31 Mar 2015 | 30 Jan 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 24 Mar 2015 | 23 Mar 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 17 Feb 2015 | 13 Feb 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 06 Feb 2015 | 05 Feb 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 04 Feb 2015 | 03 Feb 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | 02 Feb 2015 | 30 Jan 2015 | 000-54954 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Apr 2014 | 16 Apr 2014 | 000-54954 |
| SC 13D | Open Document | Open Filing | 14 May 2013 | |||
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 May 2013 | 24 Jan 2013 | 000-54954 |