FORMFACTOR INC FORM
CIK 0001039399 · CUSIP 346375108
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 | BlackRock, Inc. CIK 2012383 · View history | $409.22M 11,236,145 shares | 0.01% | -130.50K(-1.1%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $375.12M 10,299,864 shares | 0.01% | +8.97K(+0.1%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | EARNEST PARTNERS LLC CIK 1102578 · View history | $216.59M 5,947,088 shares | 0.94% | -142.14K(-2.3%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 04 | STATE STREET CORP CIK 93751 · View history | $106.26M 2,917,594 shares | 0.00% | +4.25K(+0.1%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $92.26M 2,533,340 shares | 0.01% | -273.56K(-9.7%)Reduced | SEC filing ↗ Feb 3, 2026 | ▾ |
| 06 | REINHART PARTNERS, LLC. CIK 1080298 · View history | $87.59M 2,404,854 shares | 2.85% | +500.16K(+26.3%)Added | SEC filing ↗ Oct 28, 2025 | ▾ |
| 07 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $87.30M 2,397,161 shares | 0.03% | +73.64K(+3.2%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $84.66M 2,324,614 shares | 0.06% | +3.29K(+0.1%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 09 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $79.06M 2,170,967 shares | 0.02% | -7.84K(-0.4%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 10 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history | $77.61M 2,131,030 shares | 0.02% | -86.18K(-3.9%)Reduced | SEC filing ↗ Oct 29, 2025 | ▾ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $68.43M 1,878,697 shares | 0.00% | -274.23K(-12.7%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 12 | SEI INVESTMENTS CO CIK 350894 · View history | $59.73M 1,640,144 shares | 0.06% | +55.10K(+3.5%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 13 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $53.49M 1,468,733 shares | 0.53% | -174.41K(-10.6%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 14 | Bank of New York Mellon Corp CIK 1390777 · View history | $51.91M 1,425,355 shares | 0.01% | -669.07K(-31.9%)Reduced | SEC filing ↗ Nov 3, 2025 | ▾ |
| 15 | MORGAN STANLEY CIK 895421 · Amended · View history | $41.68M 1,144,416 shares | 0.00% | +73.71K(+6.9%)Added | SEC filing ↗ May 27, 2026 | ▾ |
| 16 | AMERIPRISE FINANCIAL INC CIK 820027 · View history | $40.84M 1,121,225 shares | 0.01% | -6.70K(-0.6%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | WESTFIELD CAPITAL MANAGEMENT CO LP CIK 1177719 · View history | $37.39M 1,026,657 shares | 0.16% | +1.03MNew | SEC filing ↗ Nov 12, 2025 | ▾ |
| 18 | Shannon River Fund Management LLC CIK 1301050 · View history | $35.26M 968,161 shares | 5.68% | +968.16KNew | SEC filing ↗ Nov 13, 2025 | ▾ |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $34.53M 948,115 shares | 0.01% | -3.32K(-0.3%)Reduced | SEC filing ↗ Nov 10, 2025 | ▾ |
| 20 | NORTHERN TRUST CORP CIK 73124 · View history | $31.54M 865,892 shares | 0.00% | -11.13K(-1.3%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
Showing 20 / 277 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 277 reporting institutions.
This page includes 20 of 277 reporting institutions. Sign 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 277 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.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"346375108","quarter":"2025Q3","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 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.