| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 30, 2024 | May 28, 2024 | 001-39423 |
| 144 | Open Document | Open Filing | May 28, 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 25, 2024 | Mar 21, 2024 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2024 | Mar 5, 2024 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 6, 2024 | Mar 4, 2024 | 001-39423 |
| 144 | Open Document | Open Filing | Mar 4, 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 31, 2023 | May 30, 2023 | 001-39423 |
| 144 | Open Document | Open Filing | May 30, 2023 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2023 | Mar 21, 2023 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 7, 2023 | Mar 3, 2023 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2023 | Mar 1, 2023 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 1, 2022 | May 27, 2022 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2022 | Mar 8, 2022 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2022 | Mar 1, 2022 | 001-39423 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2022 | Nov 30, 2021 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 2, 2021 | Nov 30, 2021 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2021 | May 28, 2021 | 001-39423 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2021 | Mar 13, 2021 | 001-39423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 19, 2020 | Nov 17, 2020 | 001-39423 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 4, 2020 | Aug 4, 2020 | 001-39423 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 6, 2015 | Mar 5, 2015 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 SALE 12.1.14 | Dec 3, 2014 | Dec 1, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 SALE (10/27/14) | Oct 28, 2014 | Oct 27, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 SALE (9/29/14) | Sep 30, 2014 | Sep 29, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 SALE (9/2/14) | Sep 24, 2014 | Sep 22, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 SALE (9/2/14) | Sep 4, 2014 | Sep 2, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM RSU TABLE I | Aug 29, 2014 | Aug 29, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 8/26/14 | Aug 27, 2014 | Aug 26, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 6/25/14 | Jul 28, 2014 | Jul 25, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 6/23/14 | Jun 25, 2014 | Jun 23, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 6/20/14 | Jun 23, 2014 | Jun 20, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM RSU VEST 6/1/14 | Jun 3, 2014 | Jun 1, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 (5/21/14) | May 23, 2014 | May 21, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 2014 AWARDS (5/2/14) | May 5, 2014 | May 1, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 (4/21/14) | Apr 22, 2014 | Apr 21, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B5-1 (3/21/14) | Mar 24, 2014 | Mar 21, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM RSU VEST 3/1/14 | Mar 4, 2014 | Mar 1, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B-5 2/21/14 | Feb 24, 2014 | Feb 21, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B-5 2/20/14 | Feb 21, 2014 | Feb 20, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B-5 01/22/14 | Jan 23, 2014 | Jan 22, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B-5 01/21/14 | Jan 22, 2014 | Jan 21, 2014 | 001-35215 |
| 4 | Open Document | Open Filing | BELLM 10B-5 01/02/14 | Jan 3, 2014 | Jan 2, 2014 | 001-35215 |