| SC 13G/A | 2024-02-09 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP | 3,361,707 | 5.1% | EDGAR |
| SC 13G | 2023-08-11 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP | 3,322,809 | 5.0% | EDGAR |
| SC 13G/A | 2017-03-06 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 2,714,286 | 4.1% | EDGAR |
| SC 13G/A | 2017-02-13 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 3,351,842 | 5.1% | EDGAR |
| SC 13G/A | 2016-02-12 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 5,826,570 | 8.6% | EDGAR |
| SC 13G/A | 2015-01-21 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 6,989,536 | 10.1% | EDGAR |
| SC 13G/A | 2012-02-14 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 4,775,534 | 7.0% | EDGAR |
| SC 13G/A | 2010-02-08 | COLUMBIA WANGER ASSET MANAGEMENT LP | BOK FINANCIAL CORP ET AL | 10 | - | EDGAR |
| SC 13G/A | 2009-02-05 | COLUMBIA WANGER ASSET MANAGEMENT LP | BOK FINANCIAL CORP ET AL | 3,439,500 | 5.1% | EDGAR |
| SC 13G/A | 2009-02-05 | COLUMBIA WANGER ASSET MANAGEMENT LP | BOK FINANCIAL CORP ET AL | 3,439,500 | 5.1% | EDGAR |
| SC 13G | 2009-01-09 | GEORGE KAISER FAMILY FOUNDATION | BOK FINANCIAL CORP ET AL | 4,880,919 | 7.2% | EDGAR |
| SC 13G | 2008-01-22 | COLUMBIA WANGER ASSET MANAGEMENT LP | BOK FINANCIAL CORP ET AL | 3,912,000 | 5.8% | EDGAR |