| Jun 1, 2018 AForm 4 → | Jun 4, 4:45 pm EDT | FORRESTER RESEARCH, INC.FORR | 2,823 | — | — | 26,093 | — | plan? |
| May 17, 2018 MForm 4 → | May 21, 2:40 pm EDT | FORRESTER RESEARCH, INC.FORR | 892 | — | — | 23,270 | — | plan? |
| May 13, 2018 MForm 4 → | May 16, 10:29 am EDT | FORRESTER RESEARCH, INC.FORR | 843 | — | — | 22,378 | — | plan? late |
| May 12, 2018 MForm 4 → | May 15, 6:32 pm EDT | FORRESTER RESEARCH, INC.FORR | 926 | — | — | 21,535 | — | plan? |
| Mar 14, 2018 SForm 4 → | Mar 14, 5:06 pm EDT | FORRESTER RESEARCH, INC.FORR | 12,000 | $42.53 | $510,360 | 20,609 | −36.8% | plan? |
| Mar 14, 2018 MForm 4 → | Mar 14, 5:06 pm EDT | FORRESTER RESEARCH, INC.FORR | 12,000 | $31.96 | $383,520 | 32,609 | — | plan? |
| Jun 1, 2017 AForm 4 → | Jun 5, 12:15 pm EDT | FORRESTER RESEARCH, INC.FORR | 3,041 | — | — | 20,609 | — | plan? |
| May 17, 2017 MForm 4 → | May 19, 9:10 am EDT | FORRESTER RESEARCH, INC.FORR | 893 | — | — | 17,568 | — | plan? |
| May 12, 2017 MForm 4 → | May 15, 5:32 pm EDT | FORRESTER RESEARCH, INC.FORR | 2,638 | — | — | 16,675 | — | plan? |
| Dec 1, 2016 SForm 4 → | Dec 5, 1:25 pm EST | FORRESTER RESEARCH, INC.FORR | 15,625 | $39.45 | $616,410 | 14,037 | −52.7% | plan? |
| Dec 1, 2016 MForm 4 → | Dec 5, 1:25 pm EST | FORRESTER RESEARCH, INC.FORR | 15,625 | $29.44 | $460,031 | 23,037 | — | plan? |
| Nov 4, 2016 SForm 4 → | Nov 8, 1:45 pm EST | FORRESTER RESEARCH, INC.FORR | 1 | $37.00 | $37 | 14,037 | −0.01% | plan? |
| Nov 1, 2016 SForm 4 → | Nov 3, 4:18 pm EDT | FORRESTER RESEARCH, INC.FORR | 1,332 | $37.00 | $49,284 | 14,038 | −8.67% | plan? |
| May 14, 2016 MForm 4/A → | Nov 3, 4:11 pm EDT | FORRESTER RESEARCH, INC.FORR | 869 | — | — | 15,370 | — | plan? |
| May 14, 2016 MForm 4 → | May 17, 12:31 pm EDT | FORRESTER RESEARCH, INC.FORR | 869 | — | — | 15,370 | — | plan? amended |
| May 12, 2016 MForm 4/A → | Nov 3, 4:09 pm EDT | FORRESTER RESEARCH, INC.FORR | 1,770 | — | — | 14,501 | — | plan? |
| May 12, 2016 MForm 4 → | May 16, 3:49 pm EDT | FORRESTER RESEARCH, INC.FORR | 1,770 | — | — | 14,501 | — | plan? amended |
| May 8, 2016 MForm 4/A → | Nov 3, 4:07 pm EDT | FORRESTER RESEARCH, INC.FORR | 906 | — | — | 12,731 | — | plan? |
| May 8, 2016 MForm 4 → | May 10, 2:39 pm EDT | FORRESTER RESEARCH, INC.FORR | 906 | — | — | 12,731 | — | plan? amended |
| May 15, 2015 SForm 4/A → | Nov 3, 2016, 4:05 pm EDT | FORRESTER RESEARCH, INC.FORR | 8,800 | $34.10 | $300,117 | 11,825 | −42.7% | plan? |
| May 13, 2015 MForm 4 → | May 15, 12:14 pm EDT | FORRESTER RESEARCH, INC.FORR | 1,714 | — | — | 20,625 | — | plan? |
| May 8, 2015 MForm 4 → | May 11, 3:32 pm EDT | FORRESTER RESEARCH, INC.FORR | 906 | — | — | 18,911 | — | plan? |
| May 8, 2015 MForm 4 → | May 11, 3:31 pm EDT | FORRESTER RESEARCH, INC.FORR | 906 | — | — | 18,911 | — | plan? |
| May 15, 2014 SForm 4 → | May 19, 2015, 2:31 pm EDT | FORRESTER RESEARCH, INC.FORR | 8,800 | $34.10 | $300,117 | 11,825 | −42.7% | plan? late amended |