Security record · archived quarter
FORM
FormFactor, Inc. · Technology · Semiconductors
112Tracked holders
+3Δ holders
57.86MShares held
$3.23BReported value
+4New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +2.8% ·
share flow +4.1% ·
net new positions +3.6%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | +1 | 83.16K | $9.45M | +1 | −1 |
| Q2 2026 | 128 | +8 | 49.23M | $7.76B | +16 | −10 |
| Q1 2026 | 125 | +13 | 52.00M | $4.95B | +16 | −4 |
| Q4 2025 | 112 | +3 | 57.86M | $3.23B | +4 | n/a |
| 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 | n/a | 8.23M | $498.09M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 11.57M | +3.0% | $645.35M | 0.0% | ▲ Add | 3 | SEC ↗ ×17 |
| 2 | The Vanguard Group ✦ (passive) | 10.22M | -0.8% | $570.16M | 0.0% | ▼ Trim | 3 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 2.87M | -1.6% | $160.06M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 4 | Bank Of America Corp /De/ | 2.52M | n/a | $140.36M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 5 | Morgan Stanley ✦ | 2.27M | +98.5% | $126.71M | 0.0% | ▲ Add | 2 | SEC ↗ ×10 |
| 6 | PRIMECAP Management ✦ | 2.08M | -10.5% | $116.09M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 1.89M | +0.4% | $105.21M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 8 | Dimensional Fund Advisors Lp | 1.72M | n/a | $96.07M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 9 | Sei Investments Co | 1.69M | n/a | $93.99M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 10 | Alliancebernstein L.P. | 1.41M | n/a | $78.91M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Massachusetts Financial Services Co… | 1.37M | n/a | $76.36M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 12 | Ameriprise Financial Inc | 1.32M | n/a | $73.41M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 13 | Victory Capital Management Inc | 1.26M | n/a | $70.09M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 964.58K | +47.1% | $53.80M | 0.0% | ▲ Add | 7 | SEC ↗ ×2 |
| 15 | Charles Schwab Investment… | 951.73K | n/a | $53.09M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Goldman Sachs Group ✦ | 884.73K | +72.7% | $49.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 17 | Northern Trust Corp | 824.39K | n/a | $45.98M | 0.0% | n/c | 1 | SEC ↗ ×7 |
| 18 | Bank of New York Mellon Corp | 751.35K | n/a | $41.91M | 0.0% | n/c | 1 | SEC ↗ ×11 |
| 19 | Nuveen, LLC | 705.93K | n/a | $39.38M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 20 | Arrowstreet Capital ✦ | 601.76K | New | $33.57M | 0.0% | New | 1 | SEC ↗ |
| 21 | Royal Bank Of Canada | 586.65K | n/a | $32.72M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 22 | Norges Bank ✦ (passive) | 563.84K | New | $31.45M | 0.0% | New | 1 | SEC ↗ |
| 23 | Assenagon Asset Management S.A. | 562.77K | n/a | $31.39M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Voya Investment Management Llc | 562.69K | n/a | $31.39M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 25 | Fisher Asset Management ✦ | 436.05K | +206.4% | $24.32M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 26 | Point72 Asset Management ✦ | 430.09K | +273.6% | $23.99M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Principal Financial Group Inc | 370.39K | n/a | $20.66M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 28 | Envestnet Asset Management Inc | 358.79K | n/a | $20.01M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Invesco Ltd. | 332.93K | n/a | $18.57M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 30 | Wells Fargo & Company/Mn | 315.25K | n/a | $17.58M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 31 | JPMorgan Chase ✦ | 313.16K | -42.3% | $17.47M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 32 | Franklin Resources Inc | 287.57K | n/a | $16.04M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 33 | UBS Group AG | 283.39K | n/a | $15.81M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 34 | First Eagle Investment Management… | 269.22K | n/a | $15.02M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 35 | New York State Common Retirement… | 260.83K | n/a | $14.55M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Deutsche Bank Ag\ | 217.95K | n/a | $12.16M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 37 | AQR Capital Management ✦ | 204.77K | +21.9% | $11.42M | 0.0% | ▲ Add | 7 | SEC ↗ ×5 |
| 38 | Rhumbline Advisers | 204.35K | n/a | $11.40M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Connor, Clark & Lunn Investment… | 202.68K | n/a | $11.31M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Legal & General Group Plc | 202.15K | n/a | $11.28M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 41 | Citadel Advisors ✦ | 193.01K | +82.2% | $10.77M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 42 | American Century Companies Inc | 175.14K | n/a | $9.77M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Healthcare Of Ontario Pension Plan… | 171.06K | n/a | $9.54M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Allspring Global Investments… | 158.97K | n/a | $9.41M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 45 | UBS AM, a distinct business unit of… | 153.76K | n/a | $8.58M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 46 | Swiss National Bank | 152.10K | n/a | $8.48M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Raymond James Financial Inc | 136.94K | n/a | $7.79M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 48 | Prudential Financial Inc | 135.44K | n/a | $7.56M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 49 | Barclays Plc | 122.74K | n/a | $6.85M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 50 | Jane Street Group, Llc | 118.53K | n/a | $6.61M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 51 | Two Sigma Investments ✦ | 113.75K | -68.2% | $6.35M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 52 | Bnp Paribas Financial Markets | 95.93K | n/a | $5.35M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Millennium Management ✦ | 82.37K | -27.2% | $4.59M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 54 | State Of Wisconsin Investment Board | 73.39K | n/a | $4.09M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | California State Teachers… | 73.30K | n/a | $4.09M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Marshall Wace ✦ | 68.65K | New | $3.83M | 0.0% | New | 1 | SEC ↗ ×3 |
| 57 | D. E. Shaw & Co. ✦ | 60.05K | -88.2% | $3.35M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 58 | Tudor Investment Corp Et Al | 50.74K | n/a | $2.83M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Nomura Asset Management… | 49.97K | n/a | $2.79M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Russell Investments Group, Ltd. | 44.55K | n/a | $2.48M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 61 | Creative Planning | 44.17K | n/a | $2.46M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Cetera Investment Advisers | 40.98K | n/a | $2.29M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Manufacturers Life Insurance… | 37.18K | n/a | $2.08M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 36.19K | n/a | $2.02M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Federated Hermes, Inc. | 35.01K | n/a | $1.95M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Susquehanna International Group, Llp | 34.70K | n/a | $1.94M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Hrt Financial Lp | 33.85K | n/a | $1.89M | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Janus Henderson Group Plc | 32.87K | n/a | $1.83M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Bridgewater Associates ✦ | 25.98K | New | $1.45M | 0.0% | New | 1 | SEC ↗ |
| 70 | Stifel Financial Corp | 25.59K | n/a | $1.43M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 71 | Holocene Advisors, LP | 24.91K | n/a | $1.39M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Mariner, LLC | 23.92K | n/a | $1.33M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Citigroup Inc | 23.38K | n/a | $1.30M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 74 | Fifth Third Bancorp | 23.36K | n/a | $1.30M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | State Board Of Administration Of… | 22.05K | n/a | $1.23M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Fidelity (FMR) ✦ | 21.72K | +14.8% | $1.21M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 77 | First Trust Advisors Lp | 19.65K | n/a | $1.10M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Wealth Enhancement Advisory… | 16.07K | n/a | $1.05M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Tidal Investments LLC | 18.35K | n/a | $1.02M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 80 | Squarepoint Ops LLC | 17.03K | n/a | $949,766 | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Quantinno Capital Management LP | 16.38K | n/a | $913,453 | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Zurcher Kantonalbank (Zurich… | 16.21K | n/a | $904,194 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | ProShare Advisors LLC | 15.15K | n/a | $844,899 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Canada Pension Plan Investment Board | 14.10K | n/a | $786,498 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | HighTower Advisors, LLC | 13.47K | n/a | $751,357 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Cwm, Llc | 13.31K | n/a | $742,000 | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Group One Trading Llc | 12.68K | n/a | $707,514 | 0.0% | n/c | 1 | SEC ↗ |
| 88 | LPL Financial LLC | 11.89K | n/a | $663,503 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Pictet Asset Management Holding SA | 10.87K | n/a | $606,552 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Cerity Partners LLC | 10.31K | n/a | $590,566 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 91 | Captrust Financial Advisors | 10.09K | n/a | $562,764 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Universal- Beteiligungs- und… | 9.51K | n/a | $530,524 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Pnc Financial Services Group, Inc. | 9.33K | n/a | $520,427 | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 94 | Corient Private Wealth LP | 8.57K | n/a | $477,874 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 95 | Mackenzie Financial Corp | 7.58K | n/a | $432,023 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Man Group plc | 7.52K | n/a | $419,242 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Mercer Global Advisors Inc /Adv | 7.51K | n/a | $418,850 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Amundi | 7.45K | n/a | $415,394 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Neuberger Berman Group LLC | 7.07K | n/a | $394,309 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Bank Of Montreal /Can/ | 5.24K | n/a | $292,455 | 0.0% | n/c | 1 | SEC ↗ ×3 |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $33.57M | 0.0% |
| Norges Bank | $31.45M | 0.0% |
| Marshall Wace | $3.83M | 0.0% |
| Bridgewater Associates | $1.45M | 0.0% |
Exited
| No tracked exits this quarter. |
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)
Oct 14
SLESSOR MIKE
Officer, Director · 1.20K sh · $151,104
Oct 14
SLESSOR MIKE
Officer, Director · 2.19K sh · $272,685
Oct 14
SLESSOR MIKE
Officer, Director · 7.70K sh · $965,648
Sep 16
SLESSOR MIKE
Officer, Director · 1.00K sh · $105,800
Sep 16
SLESSOR MIKE
Officer, Director · 8.74K sh · $910,920
Sep 16
SLESSOR MIKE
Officer, Director · 7.77K sh · $817,098
Sep 03
STEVEN-WAISS KELLEY
Director · 2.10K sh · $201,810
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
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: Q4 2025 ·
Methodology ·
Get this via the API