| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 23 Jun 2022 | 22 Jun 2022 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Feb 2022 | 11 Feb 2022 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2021 | 26 May 2021 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2021 | 19 Feb 2021 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Sep 2020 | 17 Sep 2020 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Apr 2020 | 18 Mar 2020 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2019 | 12 Nov 2019 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Jun 2019 | 19 Jun 2019 | 001-36583 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Feb 2019 | 21 Feb 2019 | 001-36583 |
| 3 | Open Document | Open Filing | FORM 3 | 27 Feb 2019 | 21 Feb 2019 | 001-36583 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Dec 2013 | 18 Dec 2013 | 000-24230 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Oct 2013 | 27 Sep 2013 | 000-24230 |
| 4 | Open Document | Open Filing | JENNIFER CHENG FORM 4 | 01 Aug 2012 | 31 Jul 2012 | 000-24230 |
| 3 | Open Document | Open Filing | JENNIFER CHENG FORM 3 | 01 Aug 2012 | 25 Jul 2012 | 000-24230 |