Bandera Partners LLC 13D and 13G filings for Rubicon Technology, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2022-08-23 4:18 pm Sale | 2022-08-19 | 13D | Rubicon Technology, Inc. RBCN | Bandera Partners LLC | 131,344 5.300% | -131,356 (-50.00%) | Filing |
| 2022-07-08 4:10 pm Purchase | 2022-07-01 | 13D | Rubicon Technology, Inc. RBCN | Bandera Partners LLC | 262,700 10.700% | 1,250 (+0.48%) | Filing |
| 2020-09-14 4:03 pm Purchase | 2020-08-14 | 13D | Rubicon Technology, Inc. RBCN | Bandera Partners LLC | 261,450 10.900% | 3,194 (+1.24%) | Filing |