| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Dec 2021 | 02 Dec 2021 | 001-35256 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2021 | 15 Nov 2021 | 001-35256 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Nov 2021 | 10 Nov 2021 | 001-35256 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2021 | 08 Nov 2021 | 001-35256 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Aug 2021 | 12 Aug 2021 | 001-35256 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Aug 2021 | 06 May 2021 | 001-35256 |
| 4/A | Open Document | Open Filing | FORM 4/A | 12 Aug 2021 | 02 Mar 2021 | 001-35256 |
| 4 | Open Document | Open Filing | DSPG - FORM 4 - TALI CHEN [3-4-21] | 04 Mar 2021 | 02 Mar 2021 | 001-35256 |
| 3 | Open Document | Open Filing | DSPG - FORM 3 - T. CHEN (9-16-20) | 16 Sep 2020 | 07 Sep 2020 | 001-35256 |