FORM FormFactor, Inc.
FormFactor, Inc. (FORM) Institutional Ownership
What the institutions did with FORM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | 17.8% |
| DIMENSIONAL FUND ADVISORS LP | 1.4M | 14.3% |
| Bank of New York Mellon Corp | 963.4K | 9.5% |
| REINHART PARTNERS, LLC. | 659.7K | 6.5% |
| GF FUND MANAGEMENT CO. LTD. | 476.0K | 4.7% |
| PRINCIPAL FINANCIAL GROUP INC | 432.4K | 4.3% |
| Pictet Asset Management Holding SA | 424.7K | 4.2% |
| BESSEMER GROUP INC | 421.4K | 4.2% |
| Allspring Global Investments Holdings, LLC | 316.7K | 3.1% |
| Russell Investments Group, Ltd. | 253.0K | 2.5% |
| ROYCE & ASSOCIATES LP | 249.7K | 2.5% |
| Mawer Investment Management Ltd. | 231.8K | 2.3% |
| PINNACLE ASSOCIATES LTD | 189.3K | 1.9% |
| Squarepoint Ops LLC | 154.9K | 1.5% |
| DEUTSCHE BANK AG\ | 124.4K | 1.2% |
| TimesSquare Capital Management, LLC | 117.4K | 1.2% |
| Swedbank AB | 116.0K | 1.1% |
| Fisher Asset Management, LLC | 109.5K | 1.1% |
| Creative Planning | 74.4K | 0.7% |
| ACADIAN ASSET MANAGEMENT LLC | 64.7K | 0.6% |
| FIFTH THIRD BANCORP | 57.2K | 0.6% |
| Thrivent Financial for Lutherans | 54.6K | 0.5% |
| Illinois Municipal Retirement Fund | 50.6K | 0.5% |
| Assenagon Asset Management S.A. | 47.4K | 0.5% |
| INTECH INVESTMENT MANAGEMENT LLC | 40.4K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| WT Asset Management Ltd | Sold Out | 534.5K | 0 | -534.5K |
| Assenagon Asset Management S.A. | Reduced | 519.0K | 47.4K | -471.6K |
| Bank of New York Mellon Corp | Increased | 649.3K | 963.4K | +314.1K |
| GF FUND MANAGEMENT CO. LTD. | Reduced | 776.0K | 476.0K | -300.0K |
| Pictet Asset Management Holding SA | Reduced | 654.0K | 424.7K | -229.3K |
| Fisher Asset Management, LLC | Reduced | 313.7K | 109.5K | -204.1K |
| Squarepoint Ops LLC | Increased | 7.4K | 154.9K | +147.5K |
| Swedbank AB | New | 0 | 116.0K | +116.0K |
| Russell Investments Group, Ltd. | Increased | 162.5K | 253.0K | +90.5K |
| CITIGROUP INC | Reduced | 97.0K | 16.7K | -80.3K |
| Temasek Holdings (Private) Ltd | Reduced | 88.2K | 25.7K | -62.5K |
| TimesSquare Capital Management, LLC | Increased | 58.3K | 117.4K | +59.1K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 112.2K | 64.7K | -47.5K |
| IMC-Chicago, LLC | Sold Out | 45.1K | 0 | -45.1K |
| Allspring Global Investments Holdings, LLC | Increased | 274.3K | 316.7K | +42.5K |
| MACKENZIE FINANCIAL CORP | Sold Out | 39.3K | 0 | -39.3K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.8M | 1.8M | -30.7K |
| Aberdeen Group plc | New | 0 | 29.4K | +29.4K |
| Mawer Investment Management Ltd. | Increased | 202.8K | 231.8K | +29.0K |
| INTECH INVESTMENT MANAGEMENT LLC | Reduced | 68.5K | 40.4K | -28.1K |
| Andar Capital Management HK Ltd | Sold Out | 27.0K | 0 | -27.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.4M | 1.4M | +25.8K |
| Concurrent Investment Advisors, LLC | Sold Out | 24.5K | 0 | -24.5K |
| Fulcrum Asset Management LLP | Increased | 2.7K | 25.0K | +22.3K |
| Amundi | Increased | 7.1K | 27.9K | +20.8K |
| REINHART PARTNERS, LLC. | Increased | 639.9K | 659.7K | +19.7K |
| BARCLAYS PLC | Reduced | 28.1K | 8.8K | -19.4K |
| PRINCIPAL FINANCIAL GROUP INC | Increased | 413.7K | 432.4K | +18.7K |
| CWA Asset Management Group, LLC | New | 0 | 18.2K | +18.2K |
| Sendero Wealth Management, LLC | New | 0 | 17.5K | +17.5K |
| DEUTSCHE BANK AG\ | Reduced | 140.5K | 124.4K | -16.1K |
| Amitell Capital Pte Ltd | New | 0 | 15.3K | +15.3K |
| ROYCE & ASSOCIATES LP | Increased | 234.6K | 249.7K | +15.1K |
| PINNACLE ASSOCIATES LTD | Increased | 176.5K | 189.3K | +12.8K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 12.2K | 0 | -12.2K |
| State of Alaska, Department of Revenue | Reduced | 28.5K | 19.0K | -9.4K |
| iA Global Asset Management Inc. | New | 0 | 9.1K | +9.1K |
| Jefferies Financial Group Inc. | Sold Out | 8.0K | 0 | -8.0K |
| BESSEMER GROUP INC | Increased | 414.1K | 421.4K | +7.3K |
| Lisanti Capital Growth, LLC | Reduced | 41.4K | 34.4K | -7.1K |
| DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD. | New | 0 | 7.0K | +7.0K |
| Mitsubishi UFJ Asset Management Co., Ltd. | Increased | 9.1K | 16.1K | +7.0K |
| Ethic Inc. | Increased | 3.1K | 9.9K | +6.8K |
| INDEPENDENT FINANCIAL GROUP, LLC | Reduced | 9.8K | 3.1K | -6.7K |
| NATIXIS | Sold Out | 6.7K | 0 | -6.7K |
| RFG Advisory, LLC | New | 0 | 6.4K | +6.4K |
| Summit Global Investments | Sold Out | 6.1K | 0 | -6.1K |
| Maryland State Retirement & Pension System | Increased | 15.9K | 22.0K | +6.1K |
| Caitong International Asset Management Co., Ltd | Sold Out | 6.0K | 0 | -6.0K |
| Capstone Capital Management Ltd | Increased | 13.2K | 19.2K | +5.9K |
| ALPS ADVISORS INC | New | 0 | 5.6K | +5.6K |
| Savant Capital, LLC | Increased | 5.3K | 10.8K | +5.4K |
| NORDEA INVESTMENT MANAGEMENT AB | New | 0 | 5.1K | +5.1K |
| Jackson Creek Investment Advisors LLC | Increased | 8.6K | 13.7K | +5.1K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | Increased | 12.8K | 17.8K | +5.0K |
| Lido Advisors, LLC | New | 0 | 4.6K | +4.6K |
| Achmea Investment Management B.V. | New | 0 | 4.5K | +4.5K |
| Leonteq Securities AG | Reduced | 4.6K | 130 | -4.5K |
| KORNITZER CAPITAL MANAGEMENT INC /KS | Increased | 8.0K | 12.0K | +4.0K |
| Handelsbanken Fonder AB | Reduced | 27.3K | 23.4K | -3.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.