| 2021-05-17 | Grzebinski David W | President & CEO | Sell | 3,000 | $69.59 | $208,775.40 | -4.5% | → |
| 2021-05-17 | Niemietz Kurt A. | Vice President and Treasurer | Sell | 350 | $69.53 | $24,336.93 | -46.4% | → |
| 2021-05-03 | MILLER SCOTT P | VP - CIO | Sell | 607 | $66.02 | $40,074.56 | -100% | → |
| 2021-03-11 | Miller Monte J | - | Sale+OE | 1,500 | $67.84 | $101,763.00 | -7.6% | → |
| 2021-03-02 | Grzebinski David W | President & CEO | Sell | 2,000 | $64.11 | $128,227.00 | -2.9% | → |
| 2021-03-02 | DRAGG RONALD A | Vice President and Controller | Sell | 700 | $64.04 | $44,830.73 | -6.1% | → |
| 2021-02-25 | Husted Amy D. | VP and General Counsel | Sell | 1,600 | $65.00 | $104,000.00 | -10.1% | → |
| 2021-02-22 | Miller Monte J | - | Sale+OE | 1,500 | $64.07 | $96,105.45 | -7.6% | → |
| 2021-02-12 | O'Neil Christian G. | President-Kirby Inland Marine | Sell | 2,100 | $60.76 | $127,586.34 | -9.2% | → |
| 2021-02-12 | Miller Monte J | - | Sale+OE | 4,276 | $60.78 | $259,905.54 | -19.0% | → |
| 2021-02-04 | Waterman William M. | - | Sell | 25,000 | $57.74 | $1,443,532.50 | -18.9% | → |
| 2021-02-03 | MILLER SCOTT P | VP - CIO | Sell | 1,298 | $56.64 | $73,518.72 | -100% | → |
| 2020-11-12 | Reniers Joseph H. | President-Kirby Distribution | Sell | 4,084 | $45.00 | $183,783.27 | -18.1% | → |
| 2020-06-10 | Waterman William M. | - | Sell | 25,000 | $58.12 | $1,453,050.00 | -15.9% | → |
| 2020-05-11 | Clarke Kim B | VP and Chief HR Officer | Buy | 1,000 | $51.25 | $51,250.00 | +37.7% | → |
| 2020-05-08 | MILLER SCOTT P | VP - CIO | Sell | 607 | $51.71 | $31,384.93 | -100% | → |
| 2020-02-25 | Miller Monte J | - | Sale+OE | 6,000 | $69.43 | $416,583.00 | -29.7% | → |
| 2020-02-13 | MILLER SCOTT P | VP - CIO | Sell | 564 | $74.79 | $42,182.07 | -100% | → |
| 2019-11-27 | Clarke Kim B | VP and Chief HR Officer | Sale+OE | 3,844 | $85.00 | $326,740.00 | -73.3% | → |
| 2019-11-15 | O'Neil Christian G. | President-Kirby Inland Marine | Sale+OE | 6,899 | $83.32 | $574,791.56 | -24.9% | → |
| 2019-11-12 | Husted Amy D. | VP and General Counsel | Sale+OE | 5,000 | $82.94 | $414,705.50 | -25.8% | → |
| 2019-11-06 | STEWART RICHARD ROSS | - | Sale+OE | 12,000 | $82.70 | $992,385.60 | -37.9% | → |
| 2019-11-06 | Waterman William M. | - | Sell | 20,000 | $82.67 | $1,653,426.00 | -8.2% | → |
| 2019-11-05 | STRAHAN DORMAN LYNN | President-Kirby Engine Systems | Sale+OE | 3,628 | $84.50 | $306,566.36 | -15.1% | → |
| 2019-11-05 | Waterman William M. | - | Sell | 30,000 | $84.52 | $2,535,636.00 | -5.6% | → |
| 2019-09-12 | Reniers Joseph H. | President-Kirby Distribution | Sale+OE | 9,075 | $82.17 | $745,726.33 | -29.7% | → |
| 2019-09-11 | DRAGG RONALD A | Vice President and Controller | Sale+OE | 690 | $82.79 | $57,128.21 | -6.2% | → |
| 2019-09-09 | Grzebinski David W | President & CEO | Sale+OE | 9,069 | $78.40 | $711,039.53 | -11.9% | → |
| 2019-09-09 | Husted Amy D. | VP and General Counsel | Sale+OE | 6,174 | $78.25 | $483,102.53 | -30.1% | → |
| 2019-08-29 | Holcomb Eric S | VP-Investor Relations | Sell | 70 | $74.96 | $5,247.20 | -17.5% | → |
| 2019-07-31 | STRAHAN DORMAN LYNN | President-Kirby Engine Systems | Sell | 1,500 | $78.72 | $118,074.45 | -6.8% | → |
| 2019-06-10 | Waterman William M. | - | Sell | 20,000 | $82.35 | $1,647,020.00 | -9.9% | → |
| 2019-05-07 | DRAGG RONALD A | Vice President and Controller | Sell | 500 | $84.00 | $42,000.00 | -4.6% | → |
| 2019-05-03 | O'Neil Christian G. | President-Kirby Inland Marine | Sell | 2,000 | $84.82 | $169,638.00 | -8.5% | → |
| 2019-05-03 | STRAHAN DORMAN LYNN | President-Kirby Engine Systems | Sell | 3,071 | $84.89 | $260,697.96 | -6.3% | → |
| 2019-05-03 | Miller Monte J | - | Sell | 4,937 | $84.91 | $419,214.00 | -25.8% | → |
| 2019-03-07 | STEWART RICHARD ROSS | - | Sell | 2,500 | $71.54 | $178,858.50 | -12.6% | → |
| 2019-03-01 | STEWART RICHARD ROSS | - | Sell | 2,500 | $74.67 | $186,668.00 | -11.2% | → |
| 2019-02-15 | Reniers Joseph H. | President-Kirby Distribution | Sell | 3,463 | $77.40 | $268,039.32 | -13.9% | → |
| 2019-02-05 | Grzebinski David W | President & CEO | Sale+OE | 8,052 | $75.24 | $605,854.22 | -10.6% | → |
| 2019-02-04 | O'Neil Christian G. | President-Kirby Inland Marine | Sale+OE | 4,731 | $73.65 | $348,438.15 | -16.7% | → |
| 2019-02-04 | Husted Amy D. | VP and General Counsel | Sale+OE | 4,731 | $73.90 | $349,616.17 | -24.8% | → |
| 2019-02-01 | Miller Monte J | - | Sale+OE | 6,000 | $74.35 | $446,100.00 | -26.4% | → |
| 2019-02-01 | DRAGG RONALD A | Vice President and Controller | Sale+OE | 630 | $74.28 | $46,796.40 | -5.5% | → |
| 2018-11-13 | Husted Amy D. | VP and General Counsel | Sell | 1,200 | $74.79 | $89,742.00 | -7.3% | → |