| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 13 Aug 2021 | 13 Aug 2021 | 001-11981 | |
| 4 | Open Document | Open Filing | 08 Apr 2021 | 08 Apr 2021 | 001-11981 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 16 Feb 2021 | ||
| 4 | Open Document | Open Filing | 06 Jan 2021 | 31 Dec 2020 | 001-11981 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2020 | ||
| 4 | Open Document | Open Filing | 13 Nov 2019 | 12 Nov 2019 | 001-11981 | |
| 4 | Open Document | Open Filing | 08 Nov 2019 | 05 Nov 2019 | 001-11981 | |
| 4 | Open Document | Open Filing | 31 Oct 2019 | 29 Oct 2019 | 001-11981 | |
| 4 | Open Document | Open Filing | 25 Oct 2019 | 22 Oct 2019 | 001-11981 | |
| 4 | Open Document | Open Filing | 18 Oct 2019 | 17 Oct 2019 | 001-11981 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2019 | ||
| 4 | Open Document | Open Filing | 13 Dec 2018 | 12 Dec 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 04 Dec 2018 | 03 Dec 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 02 Nov 2018 | 01 Nov 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Oct 2018 | 01 Oct 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 06 Sep 2018 | 04 Sep 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Aug 2018 | 01 Aug 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 20 Jul 2018 | 17 Jul 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 17 Jul 2018 | 10 Jul 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 09 Jul 2018 | 05 Jul 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Jul 2018 | 02 Jul 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 29 Jun 2018 | 28 Jun 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 Jun 2018 | 19 Jun 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 14 Jun 2018 | 12 Jun 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 11 Jun 2018 | 07 Jun 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Jun 2018 | 01 Jun 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 31 May 2018 | 29 May 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 24 May 2018 | 22 May 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 17 May 2018 | 15 May 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 10 May 2018 | 08 May 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 May 2018 | 01 May 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 26 Apr 2018 | 24 Apr 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 19 Apr 2018 | 17 Apr 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 16 Apr 2018 | 12 Apr 2018 | 001-11981 | |
| 4 | Open Document | Open Filing | 10 Apr 2018 | 10 Apr 2018 | 001-11981 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2018 | ||
| 4 | Open Document | Open Filing | 22 Sep 2017 | 21 Sep 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Sep 2017 | 31 Aug 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 24 Aug 2017 | 24 Aug 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 18 Aug 2017 | 17 Aug 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 10 Aug 2017 | 10 Aug 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 07 Aug 2017 | 03 Aug 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 28 Jul 2017 | 27 Jul 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 20 Jul 2017 | 20 Jul 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 14 Jul 2017 | 13 Jul 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 10 Jul 2017 | 06 Jul 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Jul 2017 | 29 Jun 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 27 Jun 2017 | 22 Jun 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 19 Jun 2017 | 08 Jun 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Jun 2017 | 01 Jun 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 31 May 2017 | 25 May 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 May 2017 | 18 May 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 15 May 2017 | 11 May 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 04 May 2017 | 04 May 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 28 Apr 2017 | 27 Apr 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 25 Apr 2017 | 20 Apr 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 13 Apr 2017 | 13 Apr 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 20 Mar 2017 | 16 Mar 2017 | 001-11981 | |
| SC 13G | Open Document | Open Filing | SC 13G | 14 Feb 2017 | ||
| 4 | Open Document | Open Filing | 27 Jan 2017 | 26 Jan 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 20 Jan 2017 | 19 Jan 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 17 Jan 2017 | 12 Jan 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Jan 2017 | 05 Jan 2017 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Jan 2017 | 29 Dec 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 28 Dec 2016 | 22 Dec 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 16 Dec 2016 | 15 Dec 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 08 Dec 2016 | 08 Dec 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Dec 2016 | 01 Dec 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 12 May 2016 | 10 May 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 May 2016 | 03 May 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 28 Apr 2016 | 26 Apr 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 Apr 2016 | 19 Apr 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 15 Apr 2016 | 12 Apr 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 11 Apr 2016 | 07 Apr 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 06 Apr 2016 | 31 Mar 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 Mar 2016 | 15 Mar 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 11 Mar 2016 | 08 Mar 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Mar 2016 | 01 Mar 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 25 Feb 2016 | 23 Feb 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 19 Feb 2016 | 16 Feb 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 12 Feb 2016 | 09 Feb 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Feb 2016 | 02 Feb 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 28 Jan 2016 | 26 Jan 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 21 Jan 2016 | 19 Jan 2016 | 001-11981 | |
| 4 | Open Document | Open Filing | 21 Aug 2015 | 17 Aug 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 01 Jul 2015 | 25 Jun 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 Jun 2015 | 16 Jun 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 10 Jun 2015 | 04 Jun 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 03 Jun 2015 | 01 Jun 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 29 May 2015 | 26 May 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 May 2015 | 14 May 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 14 May 2015 | 07 May 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 May 2015 | 30 Apr 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 29 Apr 2015 | 23 Apr 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 21 Apr 2015 | 21 Apr 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 16 Apr 2015 | 14 Apr 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 09 Apr 2015 | 07 Apr 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 02 Apr 2015 | 31 Mar 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 26 Mar 2015 | 24 Mar 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 20 Mar 2015 | 17 Mar 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 13 Mar 2015 | 10 Mar 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 06 Mar 2015 | 03 Mar 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 26 Feb 2015 | 24 Feb 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 19 Feb 2015 | 17 Feb 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 12 Feb 2015 | 10 Feb 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Feb 2015 | 05 Feb 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 29 Jan 2015 | 27 Jan 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 22 Jan 2015 | 20 Jan 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 15 Jan 2015 | 13 Jan 2015 | 001-11981 | |
| 4 | Open Document | Open Filing | 09 Jan 2015 | 29 Sep 2014 | 001-11981 | |
| 4 | Open Document | Open Filing | 30 Jun 2014 | 30 Jun 2014 | 000-55051 | |
| 4 | Open Document | Open Filing | 03 Apr 2014 | 31 Mar 2014 | 000-55051 | |
| 4 | Open Document | Open Filing | 01 Nov 2013 | 29 Oct 2013 | 000-55051 | |
| 4/A | Open Document | Open Filing | 11 Jun 2013 | 24 May 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 11 Jun 2013 | 06 Jun 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Jun 2013 | 30 May 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 29 May 2013 | 24 May 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 24 May 2013 | 21 May 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 21 May 2013 | 16 May 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 27 Feb 2013 | 22 Feb 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 21 Feb 2013 | 19 Feb 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 14 Feb 2013 | 11 Feb 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 07 Feb 2013 | 05 Feb 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 05 Feb 2013 | 01 Feb 2013 | 001-11981 | |
| 4 | Open Document | Open Filing | 25 Apr 2012 | 24 Apr 2012 | 001-11981 |