FORRESTER RESEARCH, INC. FORR
CIK 0001023313 · CUSIP 346563109
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | Portolan Capital Management, LLC CIK 1350290 · View history | $8.72M 1,541,276 shares | 0.46% | +835.53K(+118.40%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $5.14M 907,377 shares | 0.00% | -49.55K(-5.20%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 03 | FIRST MANHATTAN CO. LLC. CIK 728083 · View history | $4.25M 750,000 shares | 0.01% | +662.80K(+760.10%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 04 | Pacific Ridge Capital Partners, LLC CIK 1591546 · View history | $4.02M 710,847 shares | 0.87% | +121.96K(+20.70%)Added | SEC filing ↗ May 11, 2026 | ▾ |
| 05 | Nantahala Capital Management, LLC CIK 1472322 · View history | $3.93M 694,422 shares | 0.25% | +694.42KNew | SEC filing ↗ May 15, 2026 | ▾ |
| 06 | Tieton Capital Management, LLC CIK 1381954 · View history | $3.16M 559,041 shares | 1.06% | +20.48K(+3.80%)Added | SEC filing ↗ May 8, 2026 | ▾ |
| 07 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $2.76M 486,922 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | ArrowMark Colorado Holdings LLC CIK 1483859 · View history | $2.68M 472,952 shares | 0.07% | -83.39K(-15.00%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 09 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $2.47M 436,706 shares | 0.00% | -11.30K(-2.50%)Reduced | SEC filing ↗ May 14, 2026 | ▾ |
| 10 | ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history | $2.39M 423,338 shares | 0.00% | -2.37K(-0.60%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history | $2.20M 389,254 shares | 0.00% | +389.25KNew | SEC filing ↗ May 15, 2026 | ▾ |
| 12 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history | $2.17M 383,589 shares | 0.01% | +34.35K(+9.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 13 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $1.79M 316,788 shares | 0.00% | +18.36K(+6.20%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 14 | SEI INVESTMENTS CO CIK 350894 · View history | $1.61M 284,424 shares | 0.00% | +150.47K(+112.30%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 15 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $1.51M 266,389 shares | 0.00% | -131.79K(-33.10%)Reduced | SEC filing ↗ May 7, 2026 | ▾ |
| 16 | STATE STREET CORP CIK 93751 · View history | $1.47M 259,070 shares | 0.00% | +3.33K(+1.30%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 17 | Quantinno Capital Management LP CIK 1759654 · View history | $1.27M 224,085 shares | 0.00% | +100.28K(+81.00%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 18 | AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history | $1.05M 185,922 shares | 0.00% | +87.26K(+88.40%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 19 | BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history | $853.86K 150,859 shares | 0.02% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2026 | ▾ |
| 20 | Nierenberg Investment Management Company, LLC CIK 1282683 · View history | $742.08K 131,110 shares | 0.37% | +119.56K(+1,034.70%)Added | SEC filing ↗ May 13, 2026 | ▾ |
Showing 20 / 103 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 103 reporting institutions.
This page includes 20 of 103 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 103 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"346563109","quarter":"2026Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.