| 2019-05-24 | Argo Group International Holdings, Inc. | A | +974 sh | — | — | 19,875 |
| 2018-08-22 | Argo Group International Holdings, Inc. | M | +7,652 sh | $19.04 | +$146K | 26,562 |
| 2018-08-22 | Argo Group International Holdings, Inc. | M | −7,652 sh | — | — | 0 |
| 2018-08-22 | Argo Group International Holdings, Inc. | S | ▼−5,352 sh | $63.24 | ▼−$338K | 18,910 |
| 2018-08-22 | Argo Group International Holdings, Inc. | D | −2,300 sh | $63.35 | −$146K | 24,262 |
| 2018-05-04 | Argo Group International Holdings, Inc. | A | +1,189 sh | — | — | 18,910 |
| 2017-12-01 | Argo Group International Holdings, Inc. | D | −5,200 sh | $61.00 | −$317K | 15,410 |
| 2017-12-01 | Argo Group International Holdings, Inc. | M | +5,200 sh | — | — | 20,610 |
| 2017-12-01 | Argo Group International Holdings, Inc. | M | −5,200 sh | — | — | 0 |
| 2017-11-28 | Argo Group International Holdings, Inc. | S | ▼−4,137 sh | $61.11 | ▼−$253K | 15,410 |
| 2017-11-28 | Argo Group International Holdings, Inc. | M | +6,655 sh | $23.11 | +$154K | 22,065 |
| 2017-11-28 | Argo Group International Holdings, Inc. | D | −2,518 sh | $61.10 | −$154K | 19,547 |
| 2017-11-28 | Argo Group International Holdings, Inc. | M | −6,655 sh | — | — | 0 |
| 2017-11-07 | Argo Group International Holdings, Inc. | A | +23 sh | — | — | 5,201 |
| 2017-08-08 | Argo Group International Holdings, Inc. | A | +23 sh | — | — | 5,178 |
| 2017-06-01 | Argo Group International Holdings, Inc. | A | +1,120 sh | — | — | 15,410 |
| 2017-06-01 | Argo Group International Holdings, Inc. | A | +22 sh | — | — | 5,155 |
| 2017-02-21 | Argo Group International Holdings, Inc. | A | +20 sh | — | — | 5,133 |
| 2016-11-21 | Argo Group International Holdings, Inc. | D | −2,456 sh | $64.80 | −$159K | 18,489 |
| 2016-11-21 | Argo Group International Holdings, Inc. | S | ▼−4,199 sh | $64.87 | ▼−$272K | 14,290 |
| 2016-11-21 | Argo Group International Holdings, Inc. | M | −6,655 sh | — | — | 0 |
| 2016-11-21 | Argo Group International Holdings, Inc. | M | +6,655 sh | $23.90 | +$159K | 20,945 |
| 2016-11-15 | Argo Group International Holdings, Inc. | A | +17 sh | — | — | 5,113 |
| 2016-08-02 | Argo Group International Holdings, Inc. | A | +21 sh | — | — | 5,096 |
| 2016-05-03 | Argo Group International Holdings, Inc. | A | +17 sh | — | — | 4,614 |
| 2016-05-03 | Argo Group International Holdings, Inc. | A | +1,186 sh | — | — | 12,991 |
| 2016-02-16 | Argo Group International Holdings, Inc. | A | +19 sh | — | — | 4,597 |
| 2015-11-10 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 4,577 |
| 2015-11-05 | Argo Group International Holdings, Inc. | M | −6,050 sh | — | — | 0 |
| 2015-11-05 | Argo Group International Holdings, Inc. | M | +6,050 sh | $21.85 | +$132K | 15,110 |
| 2015-11-05 | Argo Group International Holdings, Inc. | D | −3,305 sh | $62.17 | −$205K | 11,805 |
| 2015-08-04 | Argo Group International Holdings, Inc. | A | +16 sh | — | — | 4,564 |
| 2015-05-05 | Argo Group International Holdings, Inc. | A | +18 sh | — | — | 4,548 |
| 2015-05-05 | Argo Group International Holdings, Inc. | A | +1,398 sh | — | — | 9,060 |
| 2015-02-17 | Argo Group International Holdings, Inc. | A | +17 sh | — | — | 4,530 |
| 2014-11-13 | Argo Group International Holdings, Inc. | F | −3,437 sh | $54.98 | −$189K | 6,966 |
| 2014-11-13 | Argo Group International Holdings, Inc. | M | +5,500 sh | $34.35 | +$189K | 10,403 |
| 2014-11-13 | Argo Group International Holdings, Inc. | M | −5,500 sh | — | — | 0 |
| 2014-11-04 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 4,103 |
| 2014-08-05 | Argo Group International Holdings, Inc. | A | +14 sh | — | — | 4,090 |
| 2014-02-18 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 4,060 |
| 2013-11-04 | Argo Group International Holdings, Inc. | A | +14 sh | — | — | 4,047 |
| 2013-08-06 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 4,033 |
| 2013-05-07 | Argo Group International Holdings, Inc. | A | +12 sh | — | — | 3,072 |
| 2013-05-07 | Argo Group International Holdings, Inc. | A | +5,000 sh | — | — | 5,000 |
| 2013-02-15 | Argo Group International Holdings, Inc. | A | +11 sh | — | — | 3,057 |
| 2012-11-06 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 6,084 |
| 2012-08-07 | Argo Group International Holdings, Inc. | A | +14 sh | — | — | 6,071 |
| 2012-05-08 | Argo Group International Holdings, Inc. | A | +15 sh | — | — | 6,057 |
| 2012-05-08 | Argo Group International Holdings, Inc. | A | +5,000 sh | — | — | 5,000 |