| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 144 | Open Document | Open Filing | Aug 29, 2024 | |||
| 4 | Open Document | Open Filing | Jun 24, 2024 | Jun 20, 2024 | 000-30941 | |
| 4 | Open Document | Open Filing | May 20, 2024 | May 17, 2024 | 000-30941 | |
| 4 | Open Document | Open Filing | May 17, 2024 | May 15, 2024 | 000-30941 | |
| 4 | Open Document | Open Filing | Mar 1, 2024 | Feb 28, 2024 | 000-30941 | |
| 4 | Open Document | Open Filing | Feb 26, 2024 | Feb 23, 2024 | 000-30941 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2023 | Aug 7, 2023 | 000-30941 |
| 144 | Open Document | Open Filing | Aug 7, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2023 | Jun 9, 2023 | 000-30941 |
| 144 | Open Document | Open Filing | Jun 9, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 30, 2023 | May 26, 2023 | 000-30941 |
| 144 | Open Document | Open Filing | May 26, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2023 | May 19, 2023 | 000-30941 |
| 144 | Open Document | Open Filing | May 19, 2023 | |||
| 144 | Open Document | Open Filing | May 18, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2023 | May 16, 2023 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2023 | May 15, 2023 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 10, 2023 | May 10, 2023 | 000-30941 |
| 144 | Open Document | Open Filing | May 10, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 1, 2023 | Feb 28, 2023 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 13, 2023 | Feb 13, 2023 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 28, 2022 | Nov 28, 2022 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 8, 2022 | Aug 8, 2022 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2022 | May 15, 2022 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2022 | Mar 2, 2022 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2022 | Feb 28, 2022 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 8, 2021 | Nov 8, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 31, 2021 | Aug 31, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2021 | May 24, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 21, 2021 | May 21, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2021 | May 15, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2021 | Feb 28, 2021 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 28, 2020 | May 27, 2020 | 000-30941 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | May 28, 2020 | May 15, 2020 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2020 | May 15, 2020 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 8, 2020 | May 8, 2020 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 4, 2020 | Mar 4, 2020 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2020 | Feb 28, 2020 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 21, 2019 | Aug 21, 2019 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 17, 2019 | May 15, 2019 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 1, 2019 | Feb 28, 2019 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 15, 2019 | Feb 15, 2019 | 000-30941 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Feb 12, 2019 | Jun 1, 2018 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 1, 2018 | Jun 1, 2018 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2018 | May 16, 2018 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 14, 2018 | Mar 14, 2018 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2018 | Feb 28, 2018 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 9, 2017 | Nov 7, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 15, 2017 | Aug 15, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2017 | May 18, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 17, 2017 | May 16, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2017 | Feb 15, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 8, 2017 | Feb 6, 2017 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 17, 2016 | May 16, 2016 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2016 | May 9, 2016 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 12, 2015 | Aug 10, 2015 | 000-30941 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 16, 2015 | Jul 15, 2015 | 000-30941 |
| 4 | Open Document | Open Filing | LAWSON FEB 2015 OPTION EXERCISE | Feb 19, 2015 | Feb 17, 2015 | 000-30941 |
| 4 | Open Document | Open Filing | LAWSON NOVEMBER 2014 SALE | Nov 19, 2014 | Nov 18, 2014 | 000-30941 |
| 4 | Open Document | Open Filing | LAWSON 2014 OPTION GRANT | Jul 17, 2014 | Jul 15, 2014 | 000-30941 |
| 4/A | Open Document | Open Filing | LAWSON STOCK PURCHASE MAY 2014 AMEND | May 12, 2014 | May 9, 2014 | 000-30941 |
| 4 | Open Document | Open Filing | LAWSON STOCK PURCHASE MAY 2014 | May 12, 2014 | May 9, 2014 | 000-30941 |