Security record
FORM
FormFactor, Inc. · Technology · Semiconductors
131Tracked holders
+8Δ holders
49.36MShares held
$7.78BReported value
+16New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +6.5% ·
share flow -6.7% ·
net new positions +6.9%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 131 | +8 | 49.36M | $7.78B | +16 | −7 |
| Q1 2026 | 125 | +13 | 52.00M | $4.95B | +16 | −4 |
| Q4 2025 | 112 | +3 | 57.86M | $3.23B | +4 | — |
| Q3 2025 | 17 | 0 | 33.04M | $1.20B | +1 | −2 |
| Q2 2025 | 15 | 0 | 30.26M | $1.04B | +2 | −2 |
| Q1 2025 | 12 | -2 | 9.43M | $266.77M | +1 | −3 |
| Q4 2024 | 14 | -2 | 10.58M | $465.48M | +1 | −3 |
| Q3 2024 | 15 | 0 | 7.81M | $359.35M | +1 | −1 |
| Q2 2024 | 15 | — | 8.23M | $498.09M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 10.48M | -14.4% | $1.68B | 0.0% | ▼ Trim | 5 | SEC ↗ ×18 |
| 2 | Vanguard Capital Management Llc | 3.52M | +1.2% | $562.19M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | State Street Global Advisors ✦ (passive) | 2.58M | -11.8% | $412.86M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.83M | -16.2% | $294.52M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 5 | Bank Of America Corp /De/ | 1.78M | -28.1% | $285.26M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 6 | PRIMECAP Management ✦ | 1.69M | -5.5% | $270.30M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 7 | Invesco Ltd. | 1.58M | +27.5% | $252.45M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 8 | Dimensional Fund Advisors Lp | 1.42M | +0.5% | $226.84M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 9 | Sei Investments Co | 1.34M | -20.2% | $214.79M | 0.2% | ▼ Trim | 3 | SEC ↗ ×2 |
| 10 | Jane Street Group, Llc | 1.31M | +41.5% | $209.49M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 11 | Norges Bank ✦ (passive) | 1.02M | New | $163.78M | 0.0% | New | 1 | SEC ↗ |
| 12 | Morgan Stanley ✦ | 899.95K | -31.2% | $143.93M | 0.0% | ▼ Trim | 4 | SEC ↗ ×10 |
| 13 | Alliancebernstein L.P. | 1.46M | -34.7% | $141.32M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Charles Schwab Investment… | 750.03K | -20.9% | $119.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 721.75K | -14.1% | $115.43M | 0.0% | ▼ Trim | 9 | SEC ↗ ×2 |
| 16 | Millennium Management ✦ | 670.87K | +270.8% | $107.29M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 17 | Goldman Sachs Group ✦ | 661.40K | -24.3% | $105.78M | 0.0% | ▼ Trim | 4 | SEC ↗ ×4 |
| 18 | Pictet Asset Management Holding SA | 654.00K | +5215.8% | $104.33M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 19 | Bank of New York Mellon Corp | 649.31K | +2.5% | $103.84M | 0.0% | ▲ Add | 3 | SEC ↗ ×12 |
| 20 | Nuveen, LLC | 649.29K | -23.6% | $103.84M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 21 | Northern Trust Corp | 588.02K | -29.6% | $94.04M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 22 | Assenagon Asset Management S.A. | 519.04K | +22.8% | $83.01M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 23 | Hrt Financial Lp | 493.87K | +378.0% | $78.98M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 24 | Ameriprise Financial Inc | 435.96K | -69.0% | $69.72M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 25 | Two Sigma Investments ✦ | 425.69K | +99.4% | $68.08M | 0.1% | ▲ Add | 9 | SEC ↗ |
| 26 | D. E. Shaw & Co. ✦ | 421.38K | +73.7% | $67.39M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 27 | Principal Financial Group Inc | 413.69K | +9.3% | $66.16M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | Capital World Investors ✦ | 411.03K | New | $65.74M | 0.0% | New | 1 | SEC ↗ |
| 29 | Northwestern Mutual Wealth… | 408.43K | +583368.6% | $65.32M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Susquehanna International Group, Llp | 389.83K | +770.6% | $62.34M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 31 | Massachusetts Financial Services Co… | 381.32K | -48.0% | $60.98M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 32 | Connor, Clark & Lunn Investment… | 378.07K | +13.5% | $60.47M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 33 | Arrowstreet Capital ✦ | 376.38K | -26.0% | $60.19M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 34 | Royal Bank Of Canada | 334.07K | -22.1% | $53.43M | 0.0% | ▼ Trim | 3 | SEC ↗ ×6 |
| 35 | Fisher Asset Management ✦ | 313.65K | -26.4% | $50.16M | 0.0% | ▼ Trim | 9 | SEC ↗ |
| 36 | Jones Financial Companies Lllp | 371.32K | -13.6% | $48.55M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 37 | UBS Group AG | 296.10K | +47.8% | $47.36M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 38 | Renaissance Technologies ✦ | 295.57K | New | $47.27M | 0.1% | New | 1 | SEC ↗ |
| 39 | Allspring Global Investments… | 274.25K | +228.4% | $40.35M | 0.1% | ▲ Add | 3 | SEC ↗ ×3 |
| 40 | Tudor Investment Corp Et Al | 251.91K | +78.3% | $40.29M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 41 | Citadel Advisors ✦ | 240.28K | +19.6% | $38.43M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 42 | Neuberger Berman Group LLC | 238.53K | +2695.1% | $38.15M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 43 | JPMorgan Chase ✦ | 250.70K | -5.4% | $36.67M | 0.0% | ▼ Trim | 4 | SEC ↗ ×8 |
| 44 | Nomura Asset Management Co Ltd | 224.98K | -6.2% | $35.98M | 0.1% | ▼ Trim | 2 | SEC ↗ ×2 |
| 45 | Envestnet Asset Management Inc | 220.32K | -21.6% | $35.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | Franklin Resources Inc | 217.06K | -56.0% | $34.71M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 47 | AQR Capital Management ✦ | 214.22K | -0.4% | $34.26M | 0.0% | ▼ Trim | 9 | SEC ↗ ×5 |
| 48 | Marshall Wace ✦ | 191.01K | +91.5% | $30.55M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 49 | Legal & General Group Plc | 181.75K | -1.8% | $29.07M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 50 | UBS AM, a distinct business unit of… | 180.48K | +14.4% | $28.86M | 0.0% | ▲ Add | 3 | SEC ↗ ×10 |
| 51 | Wells Fargo & Company/Mn | 170.84K | -23.9% | $27.32M | 0.0% | ▼ Trim | 3 | SEC ↗ ×4 |
| 52 | First Trust Advisors Lp | 163.71K | +63.1% | $26.18M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Bridgewater Associates ✦ | 162.59K | +223.8% | $26.00M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 54 | Russell Investments Group, Ltd. | 162.46K | +76.1% | $25.94M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 55 | Swiss National Bank | 156.40K | +2.0% | $25.01M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 56 | Rhumbline Advisers | 155.99K | -23.9% | $24.95M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 57 | Adage Capital Partners ✦ | 150.00K | New | $23.99M | 0.0% | New | 1 | SEC ↗ |
| 58 | Deutsche Bank Ag\ | 140.51K | -12.2% | $22.47M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 59 | Prudential Financial Inc | 138.47K | -42.0% | $22.15M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 60 | Man Group plc | 125.83K | -21.9% | $20.12M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 61 | Federated Hermes, Inc. | 124.71K | -37.8% | $19.94M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 62 | Point72 Asset Management ✦ | 124.47K | +342.0% | $19.91M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 63 | Bnp Paribas Financial Markets | 109.11K | -9.7% | $17.45M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | First Eagle Investment Management… | 106.14K | -41.0% | $16.97M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 65 | Allianz Asset Management GmbH | 105.08K | New | $16.81M | 0.0% | New | 1 | SEC ↗ ×2 |
| 66 | California Public Employees… | 103.70K | -11.3% | $16.59M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Citigroup Inc | 96.98K | -37.3% | $15.51M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 68 | Canada Pension Plan Investment Board | 92.40K | +323.9% | $14.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Balyasny Asset Management L.P. | 81.28K | +441.1% | $13.00M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 70 | Healthcare Of Ontario Pension Plan… | 74.85K | +5.3% | $11.97M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Creative Planning | 72.67K | +16.9% | $11.62M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 72 | Nomura Asset Management… | 65.31K | +54.2% | $10.45M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | State Board Of Administration Of… | 61.00K | +220.9% | $9.76M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 74 | Qube Research & Technologies Ltd | 57.27K | -64.3% | $9.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 75 | Fifth Third Bancorp | 57.27K | -13.7% | $9.16M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 76 | IMC-Chicago, LLC | 45.13K | New | $7.22M | 0.1% | New | 1 | SEC ↗ |
| 77 | State Of Wisconsin Investment Board | 43.79K | -20.2% | $7.00M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 78 | Victory Capital Management Inc | 40.04K | -89.0% | $6.40M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 79 | Mackenzie Financial Corp | 39.26K | +15.6% | $6.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | Lazard Asset Management Llc | 39.15K | +76.3% | $6.26M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 81 | Raymond James Financial Inc | 38.55K | -11.0% | $6.17M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 82 | Fidelity (FMR) ✦ | 35.82K | -89.0% | $5.73M | 0.0% | ▼ Trim | 5 | SEC ↗ ×3 |
| 83 | New York State Common Retirement… | 35.38K | +40.2% | $5.66M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 84 | Stifel Financial Corp | 31.71K | +50.7% | $5.07M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 85 | Tidal Investments LLC | 31.22K | +26.0% | $4.99M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 86 | Cetera Investment Advisers | 30.04K | -16.5% | $4.80M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 87 | Credit Agricole S A | 30.00K | 0.0% | $4.80M | 0.0% | Held | 2 | SEC ↗ |
| 88 | Barclays Plc | 28.13K | -74.3% | $4.50M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 89 | Hsbc Holdings Plc | 29.32K | +17.8% | $4.50M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 90 | Manufacturers Life Insurance… | 25.68K | -36.4% | $4.11M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 91 | Voya Investment Management Llc | 25.15K | -9.9% | $4.02M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 92 | Zurcher Kantonalbank (Zurich… | 24.74K | +29.3% | $3.96M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 93 | American Century Companies Inc | 21.45K | -86.0% | $3.43M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 94 | Quantinno Capital Management LP | 17.85K | -3.4% | $2.86M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 95 | Bank Of Montreal /Can/ | 16.70K | +90.2% | $2.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 96 | Robeco Institutional Asset… | 16.12K | New | $2.58M | 0.0% | New | 1 | SEC ↗ |
| 97 | Td Asset Management Inc | 15.54K | -2.4% | $2.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | LPL Financial LLC | 13.46K | +12.7% | $2.15M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 99 | Mercer Global Advisors Inc /Adv | 12.06K | +55.4% | $1.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 100 | Wealth Enhancement Advisory… | 34.38K | -2.2% | $1.85M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $163.78M | 0.0% |
| Capital World Investors | $65.74M | 0.0% |
| Renaissance Technologies | $47.27M | 0.1% |
| Adage Capital Partners | $23.99M | 0.0% |
| Allianz Asset Management GmbH | $16.81M | 0.0% |
| IMC-Chicago, LLC | $7.22M | 0.1% |
| Robeco Institutional Asset… | $2.58M | 0.0% |
Exited
| Wellington Management | $7.79M | was 0.0% |
| 1832 Asset Management L.P. | $4.84M | was 0.0% |
| MIRAE ASSET GLOBAL ETFS… | $3.54M | was 0.0% |
| ProShare Advisors LLC | $1.18M | was 0.0% |
| Capstone Investment Advisors… | $677,572 | was 0.0% |
| CIBC Bancorp USA Inc. | $387,864 | was 0.0% |
| Focus Partners Wealth | $262,757 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 389 holders, 74.32M shares, $6.80B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 16
SLESSOR MIKE
Officer, Director · 1.00K sh · $105,800
Sep 16
SLESSOR MIKE
Officer, Director · 7.77K sh · $817,098
Sep 16
SLESSOR MIKE
Officer, Director · 8.74K sh · $910,920
Sep 03
STEVEN-WAISS KELLEY
Director · 2.10K sh · $201,810
Aug 14
SLESSOR MIKE
Officer, Director · 5.54K sh · $733,388
Aug 14
SLESSOR MIKE
Officer, Director · 686 sh · $91,464
Aug 14
SLESSOR MIKE
Officer, Director · 2.48K sh · $319,483
Aug 14
SLESSOR MIKE
Officer, Director · 2.89K sh · $374,659
Aug 14
SLESSOR MIKE
Officer, Director · 3.28K sh · $428,432
Aug 14
SLESSOR MIKE
Officer, Director · 1.12K sh · $148,106
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — EARNEST PARTNERS LLC
Jul 28
SC 13G/A — BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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