Forrester Research, Inc.

Historical 13F Holders

Symbol
FORR
CUSIP
346563109
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 346563109 since 12/18/2024, largest first.

Filer % of Class Filed
George F. Colony 13G/A 38.7% 7/1/2025
Event 6/30/2025
Portolan Capital Management, LLC 13G/A
7.9% 5/15/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
BlackRock, Inc. 13G/A 4.98% 2/5/2025
Event 12/31/2024
Royce & Associates LP 13G/A 0.6% 10/22/2025
Event 9/30/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 3 9.89 k $114 k
2026 Q2 100 11.5 M $96.9 M
2026 Q1 105 11.4 M $64.3 M
2025 Q4 113 9.88 M $80.2 M
2025 Q3 113 9.28 M $98.4 M
2025 Q2 106 9.50 M $94.0 M
2025 Q1 95 9.49 M $87.7 M
2024 Q4 100 10.1 M $158 M
2024 Q3 108 10.3 M $186 M
2024 Q2 111 10.7 M $183 M
2024 Q1 112 10.7 M $230 M
2023 Q4 109 10.9 M $292 M
2023 Q3 109 10.6 M $305 M
2023 Q2 106 10.8 M $313 M
2023 Q1 127 10.8 M $348 M
2022 Q4 135 11.1 M $396 M
2022 Q3 128 10.5 M $379 M
2022 Q2 133 10.5 M $503 M
2022 Q1 137 10.5 M $592 M
2021 Q4 137 10.6 M $623 M
2021 Q3 123 10.7 M $529 M
2021 Q2 106 11.0 M $502 M
2021 Q1 101 11.1 M $470 M
2020 Q4 107 11.7 M $491 M
2020 Q3 98 10.9 M $359 M
2020 Q2 102 10.9 M $349 M
2020 Q1 106 10.9 M $318 M
2019 Q4 122 10.7 M $447 M
2019 Q3 122 10.1 M $326 M
2019 Q2 134 10.7 M $501 M
2019 Q1 135 10.6 M $512 M
2018 Q4 128 10.8 M $482 M
2018 Q3 122 11.4 M $524 M
2018 Q2 121 11.1 M $465 M
2018 Q1 120 10.9 M $450 M
2017 Q4 120 10.8 M $477 M
2017 Q3 116 10.2 M $428 M
2017 Q2 120 9.56 M $375 M
2017 Q1 124 9.86 M $392 M
2016 Q4 128 10.2 M $440 M
2016 Q3 115 9.96 M $387 M
2016 Q2 102 9.45 M $348 M
2016 Q1 98 9.69 M $326 M
2015 Q4 99 9.77 M $278 M
2015 Q3 98 9.64 M $303 M
2015 Q2 98 9.66 M $348 M
2015 Q1 98 9.85 M $362 M
2014 Q4 95 10.2 M $402 M
2014 Q3 97 10.2 M $377 M
2014 Q2 99 10.8 M $408 M
2014 Q1 95 11.1 M $399 M