Who owns FORRESTER RESEARCH, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of FORR from SEC Form 13F filings across 98 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 98 institutions disclosed 10.8M shares of FORRESTER RESEARCH, INC. worth $90.5M — about 55.4% of shares outstanding; the largest disclosed holder is Portolan Capital Management, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
98
13F holders
$90.5M
value, 2026 filers
55.4%
of shares outstanding (10.8M sh)
19
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of FORR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Portolan Capital Management, LLC | 1.6M | $13.7M | 0.5% | 8.4% | +5.4% |
| 2 | Nantahala Capital Management, LLC | 763,446 | $6.4M | 0.2% | 3.9% | +9.9% |
| 3 | Tieton Capital Management, LLC | 757,476 | $6.4M | 1.8% | 3.9% | +35.5% |
| 4 | FIRST MANHATTAN CO. LLC. | 750,000 | $6.3M | 0.0% | 3.9% | 0.0% |
| 5 | Pacific Ridge Capital Partners, LLC | 705,344 | $5.9M | 1.1% | 3.6% | -0.8% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 500,395 | $4.2M | 0.0% | 2.6% | +2.8% |
| 7 | ACADIAN ASSET MANAGEMENT LLC | 429,610 | $3.6M | 0.0% | 2.2% | +1.5% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 418,206 | $3.5M | 0.0% | 2.2% | -4.2% |
| 9 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 366,689 | $3.1M | 0.0% | 1.9% | -4.4% |
| 10 | AQR CAPITAL MANAGEMENT LLC | 357,665 | $3.0M | 0.0% | 1.8% | +92.4% |
| 11 | Quantinno Capital Management LP | 289,195 | $2.4M | 0.0% | 1.5% | +29.1% |
| 12 | BlackRock, Inc. | 270,105 | $2.3M | 0.0% | 1.4% | -70.2% |
| 13 | Ancora Advisors LLCNEW | 269,891 | $2.3M | 0.0% | 1.4% | new |
| 14 | ArrowMark Colorado Holdings LLC | 231,808 | $1.9M | 0.1% | 1.2% | -51.0% |
| 15 | DIMENSIONAL FUND ADVISORS LP | 211,963 | $1.8M | 0.0% | 1.1% | -20.4% |
| 16 | SEI INVESTMENTS CO | 200,406 | $1.7M | 0.0% | 1% | -29.5% |
| 17 | Russell Investments Group, Ltd. | 199,012 | $1.7M | 0.0% | 1% | +4110.1% |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 169,088 | $1.4M | 0.0% | 0.9% | -46.6% |
| 19 | JANE STREET GROUP, LLC | 168,333 | $1.4M | 0.0% | 0.9% | +95.0% |
| 20 | MORGAN STANLEY | 163,788 | $1.4M | 0.0% | 0.8% | +60.5% |
| 21 | TWO SIGMA INVESTMENTS, LP | 132,202 | $1.1M | 0.0% | 0.7% | +30.1% |
| 22 | Nierenberg Investment Management Company, LLC | 131,110 | $1.1M | 0.5% | 0.7% | 0.0% |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 123,617 | $1.0M | 0.0% | 0.6% | -18.1% |
| 24 | KESTREL INVESTMENT MANAGEMENT CORP | 91,500 | $769,515 | 0.4% | 0.5% | 0.0% |
| 25 | Trexquant Investment LP | 76,916 | $646,864 | 0.0% | 0.4% | +128.8% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.