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Disclosery

FORM FORMFACTOR INC

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Stock (common), issuer CIK 1039399

386 managers (396 13F filers) reported a position in FORM shares at 2026-03-31, 74,610,017 shares in all. 97 filers opened a position and 40 filers sold out during the quarter.

Managers
386
13F filers
396
New
97
Added
133
Reduced
117
Sold out
40
Shares held by filers
74,610,017

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
SLESSOR MIKEdirector, officer (CEO)2026-10-14-1,200 S$125.92Form 4
SLESSOR MIKEdirector, officer (CEO)2026-10-14-7,703 S$125.36Form 4
SLESSOR MIKEdirector, officer (CEO)2026-10-14-2,195 S$124.23Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…6,986$678K0.01%new13F-HRTimelineGroup
EVERGREEN CAPITAL MANAGEMENT LLC6,788$658K0.01%+4413F-HRTimeline
Integrated Investment Consultants, LLC6,678$648K0.14%-2,45913F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…6,437$624K0.02%+11013F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC6,385$619K0.01%-66,35413F-HRTimelineGroup
Parallel Advisors, LLC6,381$619K0.01%+5,83913F-HR/ATimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC6,234$605K<0.01%-14513F-HRTimeline
Summit Global Investmentsin group Summit Global Investments6,063$588K0.03%new13F-HRTimelineGroup
State of Wyoming5,988$581K0.07%-2,60613F-HRTimeline
Anther Capital Ltd5,960$578K0.02%13F-HRTimeline
Pallas Capital Advisors LLC5,911$573K0.02%-13613F-HRTimeline
Abel Hall, LLC5,897$572K0.12%+72813F-HRTimeline
CHOREO, LLC5,879$570K0.01%+22413F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC5,794$562K<0.01%+55813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,732$556K0.01%-16413F-HRTimelineGroup
GAMMA Investing LLC5,415$525K0.02%+23113F-HRTimeline
Regal Partners Ltdin group Regal Partners Ltd5,402$524K0.03%-4,59813F-HRTimelineGroup
Beverly Hills Private Wealth, LLC5,363$520K0.09%+5713F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC5,321$516K0.03%-3,05913F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC5,306$515K<0.01%+24913F-HRTimelineGroup
Caprock Group, LLC5,167$501K0.01%-1,71713F-HRTimeline
CIM INVESTMENT MANAGEMENT INC5,071$492K0.13%+49313F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC4,986$484K<0.01%+46313F-HRTimelineGroup
D.A. DAVIDSON & CO.4,951$480K<0.01%013F-HRTimeline
EntryPoint Capital, LLC4,909$476K0.14%-2,10613F-HRTimeline
Abacus Wealth Partners, LLC4,889$474K0.04%new13F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC4,870$472K0.01%+68813F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…4,851$470K<0.01%-2,10713F-HRTimelineGroup
Crossmark Global Holdings, Inc.4,788$464K0.01%-20613F-HRTimeline
Ensign Peak Advisors, Inc4,725$458K<0.01%013F-HR/ATimeline
Caitong International Asset Management …4,685$454K0.08%+4,65713F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS4,671$453K<0.01%new13F-HRTimelineGroup
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…4,635$450K<0.01%new13F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP4,684$448K<0.01%+29513F-HRTimelineGroup
DRW Securities, LLC4,115$399K0.02%new13F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED4,055$393K0.03%new13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd4,048$393K0.01%-6,89013F-HRTimelineGroup
MML INVESTORS SERVICES, LLC4,020$390K<0.01%-74813F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.3,999$388K<0.01%13F-HRTimelineGroup
New Age Alpha Advisors, LLC3,927$381K0.02%-9113F-HRTimeline
Callan Family Office, LLC3,914$380K0.01%-67813F-HRTimeline
Verdad Advisers, LP3,877$376K0.42%new13F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC3,694$358K0.02%-6,51613F-HRTimeline
Ethic Inc.3,633$352K0.01%new13F-HRTimeline
VestGen Advisors, LLC2,640$349K0.01%new13F-HRTimeline
Hilltop Holdings Inc.in group Hilltop Holdings Inc.3,527$342K0.03%new13F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…3,472$337K<0.01%-1,15013F-HRTimelineGroup
Meeder Advisory Services, Inc.in group Meeder Advisory Services, Inc.3,462$336K0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC3,348$325K<0.01%-12,16113F-HRTimeline
CIBC Asset Management Inc3,329$323K<0.01%new13F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA3,315$322K<0.01%new13F-HRTimelineGroup
PROFUND ADVISORS LLC3,305$321K0.01%new13F-HRTimeline
NewEdge Wealth, LLC3,188$309K<0.01%new13F-HRTimeline
Archer Investment Corp3,171$308K0.07%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC3,164$307K<0.01%+92613F-HRTimeline
Vestmark Advisory Solutions, Inc.3,158$306K<0.01%new13F-HRTimeline
BLAIR WILLIAM & CO/IL3,144$305K<0.01%new13F-HRTimeline
Krilogy Financial LLC2,375$303K0.01%new13F-HRTimeline
MIRABELLA FINANCIAL SERVICES LLP3,057$296K0.03%new13F-HRTimeline
Pinpoint Asset Management (Singapore) P…3,013$292K0.07%new13F-HRTimeline
Merit Financial Group, LLC2,907$282K<0.01%new13F-HRTimeline
Impact Partnership Wealth, LLC2,849$276K0.03%-3,91113F-HRTimeline
Aquatic Capital Management LLC2,791$271K0.01%-9,79213F-HRTimeline
Orion Porfolio Solutions, LLC2,789$271K<0.01%new13F-HRTimeline
Sequoia Financial Advisors, LLC2,786$270K<0.01%new13F-HRTimeline
Empowered Funds, LLC2,778$269K<0.01%new13F-HR/ATimeline
Focus Partners Wealthin group Focus Partners Wealth2,709$263K<0.01%new13F-HRTimelineGroup
SCOTIA CAPITAL INC.2,613$253K<0.01%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC2,577$250K<0.01%new13F-HRTimeline
GREENLEAF TRUST2,573$250K<0.01%new13F-HRTimeline
FourThought Financial Partners, LLC2,567$249K0.02%new13F-HRTimeline
Summit Trail Advisors, LLC2,554$248K<0.01%new13F-HRTimeline
KBC Group NVin group KBC Group NV2,532$246K<0.01%013F-HRTimelineGroup
SHELTON CAPITAL MANAGEMENT2,516$244K0.01%new13F-HRTimeline
Clearstead Advisors, LLC2,500$242K<0.01%+1,45013F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al2,500$242K<0.01%new13F-HRTimeline
SAGE RHINO CAPITAL LLC2,474$240K0.04%new13F-HRTimeline
Triangle Securities Wealth Management2,442$237K0.05%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
INDEPENDENT FINANCIAL GROUP, LLC2,442$237K0.01%new13F-HR/ATimeline
SIGNATUREFD, LLC2,404$233K<0.01%+6013F-HRTimeline
Cambridge Investment Research Advisors,…2,370$230K<0.01%new13F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC2,363$229K<0.01%new13F-HRTimelineGroup
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…2,331$226K<0.01%-5,53713F-HRTimelineGroup
Voleon Capital Management LP2,252$218K<0.01%new13F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.2,119$206K<0.01%+44813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
GTS SECURITIES LLC2,116$205K0.01%new13F-HRTimeline
Grandeur Peak Global Advisors, LLC2,114$205K0.05%-21,13113F-HRTimeline
Pinnacle Wealth Planning Services, Inc.2,042$198K0.02%+8813F-HRTimeline
Leonteq Securities AG2,000$194K0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC1,817$176K0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,727$168K0.01%+58613F-HR/ATimelineGroup
Kemnay Advisory Services Inc.1,626$158K0.03%-2,45513F-HRTimeline
Smartleaf Asset Management LLC1,653$151K0.01%-98813F-HRTimeline
Versant Capital Management, Inc1,538$149K0.01%+22513F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC1,445$140K<0.01%new13F-HRTimeline
Horizon Investments, LLC1,445$140K<0.01%new13F-HRTimeline
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,326$129K<0.01%+35213F-HRTimelineGroup
Wellington Grp LLC1,048$102K0.03%013F-HRTimeline
Aster Capital Management (DIFC) Ltd3,557$101K0.03%new13F-HRTimeline
Sterling Capital Management LLC1,030$99.9K<0.01%-48113F-HRTimeline
Salomon & Ludwin, LLC838$86.4K0.01%+21713F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\856$83K<0.01%-1,53013F-HRTimelineGroup
Advisory Services Network, LLC848$82.2K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…752$72.9K<0.01%-9713F-HRTimeline
MassMutual Private Wealth & Trust, FSB744$72.2K<0.01%+1913F-HRTimeline
Advisors Asset Management, Inc.568$55.1K<0.01%-1213F-HRTimeline
UMB Bank, n.a.533$51.7K<0.01%+3413F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Essential Partners LLC521$50.5K0.02%+513F-HRTimeline
USA FINANCIAL FORMULAS472$45.8K0.01%new13F-HRTimeline
Larson Financial Group LLC464$45K<0.01%+6113F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC459$44.5K<0.01%new13F-HR/ATimelineGroup
SBI Securities Co., Ltd.450$43.6K<0.01%+1713F-HRTimeline
Arax Advisory Partners429$41.6K<0.01%-5613F-HRTimeline
Allworth Financial LP426$41.3K<0.01%+5413F-HRTimeline
Farther Finance Advisors, LLC398$40.2K<0.01%+8913F-HRTimeline
Owl Creek Wealth Partners LLC355$34.4K0.01%13F-HRTimeline
Parkside Financial Bank & Trust309$30K<0.01%-3513F-HRTimeline
Geneos Wealth Management Inc.300$29.1K<0.01%013F-HRTimeline
Key Financial Inc298$28.9K0.01%013F-HRTimeline
True Wealth Design, LLC286$27.7K0.01%013F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC260$25.2K0.01%new13F-HRTimeline
Bayforest Capital Ltd260$25.2K0.03%+21513F-HRTimeline
HHM Wealth Advisors, LLC244$23.7K<0.01%+2313F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC236$22.9K<0.01%+16313F-HRTimelineGroup
Root Financial Partners, LLC236$22.9K<0.01%+5613F-HRTimeline
ROTHSCHILD INVESTMENT LLC218$21.1K<0.01%+2413F-HRTimeline
Sunbelt Securities, Inc.208$20.2K<0.01%013F-HRTimeline
IFP Advisors, Inc196$19K<0.01%+7813F-HRTimeline
Bare Financial Services, Inc191$18.5K<0.01%+4913F-HRTimeline
Keating Financial Advisory Services, In…164$15.9K<0.01%+10213F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.160$15.5K<0.01%new13F-HRTimelineGroup
HARBOR INVESTMENT ADVISORY, LLC153$14.8K<0.01%new13F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC152$14.7K<0.01%013F-HRTimelineGroup
CVA Family Office, LLC143$13.9K<0.01%+8113F-HRTimeline
Bell Investment Advisors, Inc142$13.8K<0.01%013F-HRTimeline
Fortitude Family Office, LLC103$9.99K<0.01%+2913F-HRTimeline
MAI Capital Management101$9.8K<0.01%+6613F-HRTimeline
Carolina Wealth Advisors, LLC96$9.31K<0.01%new13F-HRTimeline
C M BIDWELL & ASSOCIATES LTD93$9.02K<0.01%013F-HRTimeline
Covestor Ltd92$9K0.01%-27813F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.88$8.54K<0.01%+213F-HR/ATimelineGroup
Bravera Wealth86$8.34K<0.01%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…70$6.79K<0.01%+1113F-HRTimelineGroup
TD Capital Management LLC60$5.82K<0.01%new13F-HRTimeline
JFS WEALTH ADVISORS, LLC53$5.14K<0.01%+713F-HRTimeline
Annis Gardner Whiting Capital Advisors,…52$5.04K<0.01%013F-HRTimeline
Physician Wealth Advisors, Inc.51$4.95K<0.01%013F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC47$4.56K<0.01%new13F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…46$4.46K<0.01%-513F-HRTimelineGroup
Private Wealth Management Group, LLC39$3.78K<0.01%013F-HRTimeline
Sound Income Strategies, LLC37$3.73K<0.01%013F-HRTimeline
Park Place Capital Corp37$3.59K<0.01%013F-HRTimeline
Cornerstone Planning Group LLC23$3.33K<0.01%013F-HRTimeline
First Command Advisory Services, Inc.34$3.3K<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC32$3.1K<0.01%new13F-HRTimeline
TOTH FINANCIAL ADVISORY CORP30$2.91K<0.01%013F-HRTimeline
Rialto Wealth Management, LLC25$2.42K<0.01%+313F-HRTimeline
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…24$2.33K<0.01%+413F-HRTimeline
Torren Management, LLC24$2.33K<0.01%-71513F-HRTimeline
Godfrey Financial Associates, Inc.22$2.13K<0.01%013F-HRTimeline
Avion Wealth21$2K<0.01%013F-HRTimeline
Cedar Mountain Advisors, LLC19$1.84K<0.01%013F-HRTimeline
High Note Wealth, LLC19$1.84K<0.01%new13F-HRTimeline
Breakwater Investment Management17$1.65K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.13$1.26K<0.01%+613F-HRTimeline
DiNuzzo Private Wealth, Inc.13$1.26K<0.01%-113F-HRTimeline
Bay Harbor Wealth Management, LLC13$1.26K<0.01%+413F-HRTimeline
GILPIN WEALTH MANAGEMENT, LLC12$1.16K<0.01%+513F-HRTimeline
Ankerstar Wealth, LLC11$1.07K<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC13$1K<0.01%013F-HRTimeline
MCF Advisors LLC10$970<0.01%new13F-HRTimeline
Kilter Group LLC10$970<0.01%013F-HRTimeline
Rakuten Securities, Inc.in group Rakuten Group, Inc.9$873<0.01%new13F-HRTimelineGroup
Abound Wealth Management9$840<0.01%013F-HRTimeline
DecisionPoint Financial, LLC8$776<0.01%013F-HRTimeline
Hughes Financial Services, LLC8$776<0.01%-1013F-HRTimeline
HFM Investment Advisors, LLC6$582<0.01%+213F-HRTimeline
Vermillion Wealth Management, Inc.5$485<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.4$388<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC3$291<0.01%new13F-HRTimeline
Wealth Preservation Advisors, LLC3$291<0.01%new13F-HRTimeline
Meramec Financial Planners, LLC1$145<0.01%013F-HRTimeline
Dunhill Financial, LLC1$100<0.01%013F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC1$97<0.01%new13F-HRTimeline
TFC Financial Management, Inc.1$97<0.01%new13F-HRTimeline
CURIO WEALTH, LLC1$97<0.01%new13F-HRTimeline

Events

  • SLESSOR MIKE sold 11,098 FORM shares on 2026-10-14, Form 4 filed 2026-10-14. 0001628280-26-065922

    Accepted , ingested