| 2016-02-05 | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 80,000 0.1306% | $48.93 | $3.91M | +46.31% | ||
| 2014-08-05 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman, CEO and President | 88,000 0.1401% | $76.03 | $6.69M | -0.86% | |
| 2010-11-30 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman, CEO and President | 20,000 0.0327% | $53.49 | $1.07M | +7.56% | |
| 2009-05-05 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 60,200 0.1018% | $49.56 | $2.98M | +3.14% | |
| 2008-02-08 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 75,039 0.1287% | $54.16 | $4.06M | -0.2% | |
| 2006-05-09 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 1,050 0.0019% | $58.18 | $61,094 | -2.96% | |
| 2006-05-08 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 18,400 0.0138% | $24.12 | $443,808 | -3.02% | |
| 2006-05-05 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 110,600 0.0837% | $24.12 | $2.67M | -2.23% | |
| 2005-05-05 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 39,000 0.0748% | $44.09 | $1.72M | +21.43% | |
| 2005-05-04 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 64,400 0.1235% | $44.21 | $2.85M | +20.84% | |
| 2005-05-03 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 59,300 0.0856% | $33.31 | $1.98M | +20.27% | |
| 2004-08-17 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 81,900 0.1589% | $43.61 | $3.57M | +8.2% | |
| 2004-08-16 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 26,990 0.0523% | $43.49 | $1.17M | +8.33% | |
| 2004-08-13 | Sale | Cullen/Frost Bankers, Inc. CFR | Chairman and CEO | 11,600 0.013% | $24.75 | $287,100 | +10% |