| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 08 May 2023 | 04 May 2023 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 02 May 2023 | 30 Apr 2023 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Mar 2023 | 16 Mar 2023 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Feb 2023 | 08 Feb 2023 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 16 Dec 2022 | 14 Dec 2022 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2022 | 05 May 2022 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 03 May 2022 | 30 Apr 2022 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Feb 2022 | 03 Feb 2022 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Dec 2021 | 23 Nov 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2021 | 02 Jun 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2021 | 10 May 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2021 | 06 May 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2021 | 30 Apr 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Feb 2021 | 16 Feb 2021 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Nov 2020 | 25 Nov 2020 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Nov 2020 | 09 Nov 2020 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2020 | 10 May 2020 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 06 May 2020 | 02 May 2020 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2020 | 30 Apr 2020 | 000-19406 |
| 4/A | Open Document | Open Filing | FORM 4/A | 04 May 2020 | 22 Jun 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Feb 2020 | 06 Feb 2020 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 May 2019 | 10 May 2019 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 May 2019 | 02 May 2019 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Feb 2019 | 06 Feb 2019 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Nov 2018 | 08 Nov 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2018 | 14 Aug 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Jun 2018 | 22 Jun 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 May 2018 | 15 May 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2018 | 10 May 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Feb 2018 | 08 Feb 2018 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 May 2017 | 11 May 2017 | 000-19406 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 16 May 2016 | 12 May 2016 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 May 2016 | 12 May 2016 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Mar 2016 | 08 Mar 2016 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Dec 2015 | 15 Dec 2015 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Nov 2015 | 12 Nov 2015 | 000-19406 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Aug 2015 | 13 Aug 2015 | 000-19406 |
| 4 | Open Document | Open Filing | HEEL - ANNUAL GRANT 5-15-15 | 19 May 2015 | 15 May 2015 | 000-19406 |
| 4 | Open Document | Open Filing | HEEL - FORM 4 INITIAL GRANTS | 17 Sep 2014 | 15 Sep 2014 | 000-19406 |
| 3 | Open Document | Open Filing | HEEL - FORM 3 | 16 Sep 2014 | 15 Sep 2014 | 000-19406 |