CULLEN/FROST BANKERS, INC. is required to file a 13D/G report to the SEC when the ownership of a company's total stock issue exceeds 5%.
| Filed | Shares | Percentage | |
|---|---|---|---|
| SUMMIT BANCSHARES INC /TX/ | July 12, 2006 | 1,790,803 | 14.2% |
| IMPERIAL SUGAR CO /NEW/ | February 07, 2001 | 2,261,637 | 7.0% |