| 2019-05-24 | Argo Group International Holdings, Inc. | A | +974 sh | — | — | 21,145 |
| 2018-11-14 | Argo Group International Holdings, Inc. | D | −1,660 sh | $65.37 | −$109K | 24,217 |
| 2018-11-14 | Argo Group International Holdings, Inc. | M | +5,697 sh | $19.04 | +$108K | 25,877 |
| 2018-11-14 | Argo Group International Holdings, Inc. | M | −5,697 sh | — | — | 0 |
| 2018-11-14 | Argo Group International Holdings, Inc. | S | ▼−4,037 sh | $65.64 | ▼−$265K | 20,180 |
| 2018-11-09 | Argo Group International Holdings, Inc. | M | +1,955 sh | $19.04 | +$37.2K | 22,135 |
| 2018-11-09 | Argo Group International Holdings, Inc. | M | −1,955 sh | — | — | 5,697 |
| 2018-11-09 | Argo Group International Holdings, Inc. | S | ▼−1,260 sh | $68.21 | ▼−$85.9K | 20,180 |
| 2018-11-09 | Argo Group International Holdings, Inc. | S | ▼−160 sh | $69.24 | ▼−$11.1K | 21,440 |
| 2018-11-09 | Argo Group International Holdings, Inc. | D | −535 sh | $69.67 | −$37.3K | 21,600 |
| 2018-05-04 | Argo Group International Holdings, Inc. | A | +1,189 sh | — | — | 20,180 |
| 2017-12-01 | Argo Group International Holdings, Inc. | D | −4,787 sh | $61.00 | −$292K | 16,514 |
| 2017-12-01 | Argo Group International Holdings, Inc. | M | +4,787 sh | — | — | 21,301 |
| 2017-12-01 | Argo Group International Holdings, Inc. | M | −4,787 sh | — | — | 0 |
| 2017-11-30 | Argo Group International Holdings, Inc. | M | −6,655 sh | — | — | 0 |
| 2017-11-30 | Argo Group International Holdings, Inc. | D | −1,452 sh | $61.25 | −$88.9K | 20,658 |
| 2017-11-30 | Argo Group International Holdings, Inc. | D | −1,059 sh | $61.35 | −$65K | 22,110 |
| 2017-11-30 | Argo Group International Holdings, Inc. | M | +6,655 sh | $23.11 | +$154K | 23,169 |
| 2017-11-30 | Argo Group International Holdings, Inc. | S | ▼−4,144 sh | $61.24 | ▼−$254K | 16,514 |
| 2017-11-07 | Argo Group International Holdings, Inc. | A | +21 sh | — | — | 4,787 |
| 2017-08-08 | Argo Group International Holdings, Inc. | A | +21 sh | — | — | 4,766 |
| 2017-06-01 | Argo Group International Holdings, Inc. | A | +20 sh | — | — | 4,745 |
| 2017-06-01 | Argo Group International Holdings, Inc. | A | +1,120 sh | — | — | 16,514 |
| 2017-02-21 | Argo Group International Holdings, Inc. | A | +18 sh | — | — | 4,725 |
| 2016-11-15 | Argo Group International Holdings, Inc. | A | +15 sh | — | — | 4,707 |
| 2016-08-15 | Argo Group International Holdings, Inc. | D | −2,893 sh | $54.99 | −$159K | 19,156 |
| 2016-08-15 | Argo Group International Holdings, Inc. | M | +6,655 sh | $23.90 | +$159K | 22,049 |
| 2016-08-15 | Argo Group International Holdings, Inc. | S | ▼−3,762 sh | $54.97 | ▼−$207K | 15,394 |
| 2016-08-15 | Argo Group International Holdings, Inc. | M | −6,655 sh | — | — | 0 |
| 2016-08-02 | Argo Group International Holdings, Inc. | A | +19 sh | — | — | 4,692 |
| 2016-05-03 | Argo Group International Holdings, Inc. | A | +15 sh | — | — | 4,249 |
| 2016-05-03 | Argo Group International Holdings, Inc. | A | +1,186 sh | — | — | 13,995 |
| 2016-02-24 | Argo Group International Holdings, Inc. | M | −430 sh | — | — | 0 |
| 2016-02-24 | Argo Group International Holdings, Inc. | M | +430 sh | $31.24 | +$13.4K | 12,809 |
| 2016-02-16 | Argo Group International Holdings, Inc. | A | +17 sh | — | — | 4,234 |
| 2015-11-10 | Argo Group International Holdings, Inc. | A | +13 sh | — | — | 4,217 |
| 2015-08-20 | Argo Group International Holdings, Inc. | D | −3,401 sh | $58.41 | −$199K | 12,379 |
| 2015-08-20 | Argo Group International Holdings, Inc. | M | +6,050 sh | $21.85 | +$132K | 15,780 |
| 2015-08-20 | Argo Group International Holdings, Inc. | M | −6,050 sh | — | — | 0 |
| 2015-08-04 | Argo Group International Holdings, Inc. | A | +14 sh | — | — | 4,204 |
| 2015-05-05 | Argo Group International Holdings, Inc. | A | +16 sh | — | — | 4,190 |
| 2015-05-05 | Argo Group International Holdings, Inc. | A | +1,398 sh | — | — | 9,730 |
| 2015-02-20 | Argo Group International Holdings, Inc. | M | +2,021 sh | $34.35 | +$69.4K | 8,635 |
| 2015-02-20 | Argo Group International Holdings, Inc. | S | ▼−1,060 sh | $52.10 | ▼−$55.2K | 7,575 |
| 2015-02-20 | Argo Group International Holdings, Inc. | M | −2,021 sh | — | — | 0 |
| 2015-02-19 | Argo Group International Holdings, Inc. | S | ▼−2,528 sh | $53.00 | ▼−$134K | 6,614 |
| 2015-02-19 | Argo Group International Holdings, Inc. | M | +3,479 sh | $34.35 | +$120K | 9,142 |
| 2015-02-19 | Argo Group International Holdings, Inc. | M | −3,479 sh | — | — | 2,021 |
| 2015-02-17 | Argo Group International Holdings, Inc. | A | +15 sh | — | — | 4,174 |
| 2014-11-04 | Argo Group International Holdings, Inc. | A | +12 sh | — | — | 3,781 |