| 2014-09-15 | Tower Group International, Ltd. | U | −11.9K sh | $2.50 | −$29.7K | 0 |
| 2013-06-18 | Tower Group International, Ltd. | S | ▼−5,500 sh | $20.38 | ▼−$112K | 11,865 |
| 2013-03-13 | Tower Group International, Ltd. | F | −2,999 sh | $19.79 | −$59.4K | 15,327 |
| 2013-03-13 | Tower Group International, Ltd. | D | −15.3K sh | — | — | 0 |
| 2013-03-12 | Tower Group International, Ltd. | A | +17.4K sh | — | — | 17,365 |
| 2013-03-12 | Tower Group International, Ltd. | F | −435 sh | $19.49 | −$8,478.15 | 18,326 |
| 2013-03-07 | Tower Group International, Ltd. | F | −1,614 sh | $19.00 | −$30.7K | 18,761 |
| 2013-03-05 | Tower Group International, Ltd. | F | −601 sh | $18.73 | −$11.3K | 20,375 |
| 2013-03-01 | Tower Group International, Ltd. | F | −431 sh | $18.55 | −$7,995.05 | 20,976 |
| 2012-03-15 | Tower Group International, Ltd. | F | −168 sh | $22.32 | −$3,750.6 | 21,407 |
| 2012-03-13 | Tower Group International, Ltd. | F | −303 sh | $22.21 | −$6,731.145 | 21,575 |
| 2012-03-12 | Tower Group International, Ltd. | F | −419 sh | $22.18 | −$9,295.515 | 21,878 |
| 2012-03-07 | Tower Group International, Ltd. | F | −498 sh | $21.93 | −$10.9K | 25,472 |
| 2012-03-07 | Tower Group International, Ltd. | S | ▼−3,175 sh | $21.93 | ▼−$69.6K | 22,297 |
| 2012-03-05 | Tower Group International, Ltd. | S | ▼−1,696 sh | $22.48 | ▼−$38.1K | 25,970 |
| 2012-03-01 | Tower Group International, Ltd. | A | +4,860 sh | $23.09 | +$112K | 27,666 |
| 2011-11-17 | Tower Group International, Ltd. | S | ▼−1,790 sh | $21.49 | ▼−$38.5K | 22,806 |
| 2011-06-15 | Tower Group International, Ltd. | F | −111 sh | $22.93 | −$2,545.23 | 24,596 |
| 2011-03-15 | Tower Group International, Ltd. | S | ▼−473 sh | $23.41 | ▼−$11.1K | 24,707 |
| 2011-03-14 | Tower Group International, Ltd. | S | ▼−3,453 sh | $23.63 | ▼−$81.6K | 26,180 |
| 2011-03-14 | Tower Group International, Ltd. | S | ▼−900 sh | $23.66 | ▼−$21.3K | 25,280 |
| 2011-03-14 | Tower Group International, Ltd. | S | ▼−100 sh | $23.67 | ▼−$2,367 | 25,180 |
| 2011-03-07 | Tower Group International, Ltd. | F | −497 sh | $23.91 | −$11.9K | 17,763 |
| 2011-03-07 | Tower Group International, Ltd. | A | +6,349 sh | $23.91 | +$152K | 24,112 |
| 2011-03-07 | Tower Group International, Ltd. | A | +5,521 sh | $23.91 | +$132K | 29,633 |
| 2010-12-14 | Tower Group International, Ltd. | S | ▼−1,072 sh | $26.11 | ▼−$28K | 18,688 |
| 2010-12-14 | Tower Group International, Ltd. | S | ▼−428 sh | $26.10 | ▼−$11.2K | 18,260 |
| 2010-06-15 | Tower Group International, Ltd. | F | −89 sh | $22.17 | −$1,973.13 | 19,760 |
| 2010-03-15 | Tower Group International, Ltd. | F | −388 sh | $21.92 | −$8,504.96 | 19,849 |
| 2010-03-12 | Tower Group International, Ltd. | F | −762 sh | $22.06 | −$16.8K | 20,237 |
| 2010-03-05 | Tower Group International, Ltd. | A | +6,785 sh | — | — | 20,999 |
| 2009-11-20 | Tower Group International, Ltd. | G | −204 sh | $24.19 | −$4,934.76 | 14,335 |
| 2009-11-19 | Tower Group International, Ltd. | S | ▼−808 sh | $24.57 | ▼−$19.9K | 14,539 |
| 2009-09-27 | Tower Group International, Ltd. | F | −121 sh | $24.37 | −$2,948.77 | 14,214 |
| 2009-03-16 | Tower Group International, Ltd. | F | −139 sh | $23.44 | −$3,258.16 | 15,347 |
| 2009-03-13 | Tower Group International, Ltd. | F | −249 sh | $23.34 | −$5,811.66 | 15,486 |
| 2009-03-10 | Tower Group International, Ltd. | A | +2,839 sh | — | — | 11,004 |
| 2009-03-10 | Tower Group International, Ltd. | A | +4,731 sh | — | — | 15,735 |
| 2008-06-16 | Tower Group International, Ltd. | F | −89 sh | $24.01 | −$2,136.89 | 8,286 |
| 2007-09-28 | Tower Group International, Ltd. | F | −122 sh | $25.70 | −$3,135.4 | 5,109 |
| 2007-08-09 | Tower Group International, Ltd. | S | ▼−100 sh | $25.58 | ▼−$2,558 | 5,231 |