FORR Institutional Ownership & Shareholders
FORRESTER RESEARCH INC (FORR) is currently held by 98 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $84.88M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Portolan Capital Management, Llc is currently the largest disclosed institutional shareholder of FORR tracked by InsiderSet, reporting ownership valued at approximately $13.66M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $16.00M, representing an estimated gain of +17.12% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 61% of the total disclosed FORR value among the investors covered in this analysis. Major shareholders include Portolan Capital Management, Llc, Nantahala Capital Management, Llc, First Manhattan Co. Llc., and several other long-term asset managers with concentrated positions in FORRESTER RESEARCH INC (FORR).
This page ranks the largest institutional FORR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
98
Total Reported Value
$84.88M
Largest Holder
Portolan Capital Management, Llc
Largest Position
$13.66M
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
140
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Portolan Capital Management, Llc | 0.51% | 1,623,925 | $13,657,209 | $15,995,661 | +$2,338,452 | +17.12% | |
| Nantahala Capital Management, Llc | 0.39% | 763,446 | $6,420,581 | $7,519,943 | +$1,099,362 | +17.12% | |
| First Manhattan Co. Llc. | 0.02% | 750,000 | $6,307,500 | $7,387,500 | +$1,080,000 | +17.12% | |
| Pacific Ridge Capital Partners, Llc | 1.08% | 705,344 | $5,931,943 | $6,947,638 | +$1,015,695 | +17.12% | |
| Vanguard Capital Management Llc | 0.00% | 500,395 | $4,208,322 | $4,928,891 | +$720,569 | +17.12% | |
| Acadian Asset Management Llc | 0.00% | 429,610 | $3,609,000 | $4,231,659 | +$622,659 | +17.25% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 418,206 | $3,517,112 | $4,119,329 | +$602,217 | +17.12% |
| Hotchkis & Wiley Capital Management Llc | 0.01% | 366,689 | $3,083,854 | $3,611,887 | +$528,033 | +17.12% | |
| Aqr Capital Management Llc | 0.00% | 357,665 | $3,007,962 | $3,523,000 | +$515,038 | +17.12% | |
| Quantinno Capital Management Lp | 0.00% | 289,195 | $2,432,130 | $2,848,571 | +$416,441 | +17.12% | |
| Blackrock, Inc. | 0.00% | 270,105 | $2,271,582 | $2,660,534 | +$388,952 | +17.12% | |
| Ancora Advisors Llc | 0.04% | 269,891 | $2,269,783 | $2,658,426 | +$388,643 | +17.12% | |
| Arrowmark Colorado Holdings Llc | 0.08% | 231,808 | $1,949,505 | $2,283,309 | +$333,804 | +17.12% | |
| Dimensional Fund Advisors Lp | 0.00% | 211,963 | $1,782,632 | $2,087,836 | +$305,204 | +17.12% | |
| Sei Investments Co | 0.00% | 200,406 | $1,685,429 | $1,973,999 | +$288,570 | +17.12% | |
| Russell Investments Group, Ltd. | 0.00% | 199,012 | $1,673,697 | $1,960,268 | +$286,571 | +17.12% | |
| Geode Capital Management, Llc | 0.00% | 169,088 | $1,422,325 | $1,665,517 | +$243,192 | +17.10% | |
| Jane Street Group, Llc | 0.00% | 168,333 | $1,415,680 | $1,658,080 | +$242,400 | +17.12% | |
| Morgan Stanley | 0.00% | 163,788 | $1,377,466 | $1,613,312 | +$235,846 | +17.12% | |
| Two Sigma Investments, Lp | 0.00% | 132,202 | $1,111,819 | $1,302,190 | +$190,371 | +17.12% | |
| Nierenberg Investment Management Company, Llc | 0.55% | 131,110 | $1,102,635 | $1,291,434 | +$188,799 | +17.12% | |
| Bridgeway Capital Management, Llc | 0.02% | 123,617 | $1,039,619 | $1,217,627 | +$178,008 | +17.12% | |
| Kestrel Investment Management Corp | 0.56% | 84,400 | $971,444 | $831,340 | -$140,104 | -14.42% | |
| Trexquant Investment Lp | 0.00% | 76,916 | $646,864 | $757,623 | +$110,759 | +17.12% | |
| Susquehanna International Group, Llp | 0.00% | 74,551 | $626,974 | $734,327 | +$107,353 | +17.12% | |
| Vanguard Fiduciary Trust Co | 0.00% | 70,016 | $588,835 | $689,658 | +$100,823 | +17.12% | |
| Qube Research & Technologies Ltd | 0.00% | 68,992 | $580,223 | $679,571 | +$99,348 | +17.12% | |
| Goldman Sachs Group Inc | 0.00% | 66,865 | $562,335 | $658,620 | +$96,285 | +17.12% | |
| Marshall Wace, Llp | 0.00% | 65,977 | $554,867 | $649,873 | +$95,006 | +17.12% | |
| State Street Corp | 0.00% | 65,213 | $548,441 | $642,348 | +$93,907 | +17.12% | |
| Charles Schwab Investment Management Inc | 0.00% | 64,854 | $545,422 | $638,812 | +$93,390 | +17.12% | |
| Gsa Capital Partners Llp | 0.03% | 64,275 | $541,000 | $633,109 | +$92,109 | +17.03% | |
| Price T Rowe Associates Inc | 0.00% | 54,743 | $461,000 | $539,219 | +$78,219 | +16.97% | |
| Federated Hermes, Inc. | 0.00% | 52,118 | $438,312 | $513,362 | +$75,050 | +17.12% | |
| Cooper Creek Partners Management Llc | 0.02% | 46,779 | $393,000 | $460,773 | +$67,773 | +17.25% | |
| Millennium Management Llc | 0.00% | 43,759 | $368,013 | $431,026 | +$63,013 | +17.12% | |
| Ameriprise Financial Inc | 0.00% | 40,105 | $337,283 | $395,034 | +$57,751 | +17.12% | |
| Mercer Global Advisors Inc | 0.00% | 38,578 | $324,441 | $379,993 | +$55,552 | +17.12% | |
| Hsbc Holdings Plc | 0.00% | 38,425 | $322,002 | $378,486 | +$56,484 | +17.54% | |
| Bank Of America Corp | 0.00% | 35,203 | $296,057 | $346,750 | +$50,693 | +17.12% | |
| Barclays Plc | 0.00% | 33,648 | $282,979 | $331,433 | +$48,454 | +17.12% | |
| Mackenzie Financial Corp | 0.00% | 24,388 | $280,706 | $240,222 | -$40,484 | -14.42% | |
| Vanguard Portfolio Management Llc | 0.00% | 32,792 | $275,781 | $323,001 | +$47,220 | +17.12% | |
| Oppenheimer Asset Management Inc. | 0.00% | 23,310 | $268,298 | $229,604 | -$38,695 | -14.42% | |
| Northern Trust Corp | 0.00% | 28,997 | $243,865 | $285,620 | +$41,755 | +17.12% | |
| Bank Of New York Mellon Corp | 0.00% | 27,636 | $232,419 | $272,215 | +$39,796 | +17.12% | |
| Ieq Capital, Llc | 0.00% | 27,040 | $227,406 | $266,344 | +$38,938 | +17.12% | |
| Vanguard Personalized Indexing Management, Llc | 0.00% | 26,893 | $226,170 | $264,896 | +$38,726 | +17.12% | |
| Inscription Capital, Llc | 0.02% | 19,232 | $221,360 | $189,435 | -$31,925 | -14.42% | |
| Aster Capital Management (Difc) Ltd | 0.05% | 25,610 | $215,380 | $252,259 | +$36,879 | +17.12% |
Frequently asked questions about FORR
Who are the largest institutional holders of FORR?
The largest institutional holders of FORR reported in the latest SEC Form 13F filings include Portolan Capital Management, Llc, Nantahala Capital Management, Llc, First Manhattan Co. Llc., Pacific Ridge Capital Partners, Llc, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported FORR position.
What is FORR institutional ownership?
This page tracks FORR positions reported by institutional investment managers through SEC Form 13F. FORRESTER RESEARCH INC (FORR) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own FORR?
InsiderSet currently tracks 98 institutional managers reporting FORR holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of FORR shareholders.
How much FORR stock do institutions own?
Institutional investment managers disclosed approximately $84.88M in FORR holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was FORR institutional ownership last updated?
The latest FORR institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional FORR holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its FORR position after the reporting date.
Are institutions buying or selling FORR?
Institutional buying and selling can be analyzed by comparing FORR positions across consecutive 13F reporting periods. InsiderSet's FORR Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View FORR ownership changes.
How has FORR institutional ownership changed over time?
InsiderSet tracks FORR institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.