| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Mar 2022 | 25 Mar 2022 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Dec 2021 | 20 Dec 2021 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Mar 2021 | 15 Mar 2021 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Feb 2021 | 16 Feb 2021 | 001-38327 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 18 Feb 2021 | 20 Jan 2021 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2021 | 10 Feb 2021 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Jan 2021 | 20 Jan 2021 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2020 | 24 Mar 2020 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Jan 2018 | 27 Dec 2017 | 001-38327 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 27 Dec 2017 | 18 Dec 2017 | 001-38327 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2017 | 28 Feb 2017 | 000-30347 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Jan 2016 | 19 Jan 2016 | 000-30347 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Jan 2015 | 26 Jan 2015 | 000-30347 |
| 4 | Open Document | Open Filing | 2014 ANNUAL GRANT | 28 Jan 2014 | 27 Jan 2014 | 000-30347 |
| 4 | Open Document | Open Filing | KEN'S NOV 2013 OPEN MKT PURCHASE | 08 Nov 2013 | 08 Nov 2013 | 000-30347 |
| 4 | Open Document | Open Filing | KEN'S SEPT 2013 OPEN MKT PURCHASE | 08 Nov 2013 | 16 Sep 2013 | 000-30347 |
| 4 | Open Document | Open Filing | KEN'S INITIAL BOD GRANT - 3/28/13 | 28 Mar 2013 | 28 Mar 2013 | 000-30347 |
| 3 | Open Document | Open Filing | KEN'S INITIAL FORM 3 | 12 Mar 2013 | 07 Mar 2013 | 000-30347 |