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Formfactor Inc

FORM
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001039399

In the last 90 days, Formfactor Inc insiders filed 0 open-market purchases and 4 sales; 514 institutions reported holding it in 13F filings for Q2 2026, worth $11.4B in total; Maverick Capital is the only superinvestor holding it.

Key figures

Market capClose on Nov 10, 2026
$6.71B
Insider buysOpen market, last 90 days
0
Insider sellsLast 90 days, $5.52M in total
4
13F holdersQ2 2026, +120 vs. previous quarter
514
13F valueReported value at the end of Q2 2026
$11.4B
Superinvestors holdingAt the end of Q2 2026
1

Price chart

From SEC filings, in USD.

Revenue, FY2025
$785.0M
+2.8% year over year
Net income, FY2025
$54.4M
−21.9% year over year
Free cash flow, FY2025
$11.7M
−85.2% year over year
Revenue, Q3 FY2026
$280.5M
+38.4% year over year

Revenue flow, FY2025

Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.

Short interest

See short data

From FINRA, settlement date Oct 30, 2026.

Short interest
2.82M
Shares sold short
Change
+198.0K
+7.6% vs. previous
Days to cover
1.74
At average daily volume

Superinvestors holding FORM, Q2 2026

Go to the superinvestors tab

1 superinvestor reports holding Formfactor Inc on Form 13F. Percentages are the stock's share of each portfolio.

Maverick Capital

Lee Ainslie

<0.1%

Formfactor Inc's share of the portfolio

Shares
4,554
Value
$728.3K

Latest insider trades

See all insider trades

Open-market purchases and sales by Formfactor Inc insiders from Form 4, newest first.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Oct 14, 2026 (view filing)8:06 PM ETOct 14Same daySlessor MikeCEOSSale−11.1K$125.20−$1.39M−2.4%455.6K after3 lots10b5-1
Sep 17, 2026 (view filing)7:30 PM ETSep 161 daySlessor MikeCEOSSale−17.5K$104.73−$1.83M−3.6%466.7K after3 lots10b5-1
Sep 4, 2026 (view filing)4:51 PM ETSep 31 daySteven-Waiss KelleyDirectorSSale−2.10K$96.10−$201.8K−7.9%24.4K after
Aug 17, 2026 (view filing)6:16 PM ETAug 143 daysSlessor MikeCEOSSale−16.0K$130.95−$2.10M−3.2%484.2K after6 lots10b5-1
Jul 16, 2026 (view filing)5:30 PM ETJul 151 daySlessor MikeCEOSSale−4.74K$118.31−$560.2K−1.1%430.4K after6 lots10b5-1
Jun 16, 2026 (view filing)Jun 151 daySt Dennis ThomasDirectorSSale−2.80K$151.49−$424.2K−8.8%29.1K after
Jun 11, 2026 (view filing)Jun 101 daySlessor MikeCEOSSale−11.9K$121.35−$1.44M−2.7%435.1K after7 lots10b5-1
Jun 4, 2026 (view filing)Jun 22 daysRhodes SheriDirectorSSale−6.33K$125.40−$793.5K−54.1%5.38K after
May 22, 2026 (view filing)May 211 dayObregon-Jimenez RebecaDirectorSSaleRestricted Stock Units−3.83K$126.48−$484.2K−32.7%7.88K after
May 21, 2026 (view filing)May 201 dayWhite Brian CDirectorSSale−3.25K$126.00−$409.5K−27.3%8.65K after

Top 10 13F holders, Q2 2026

See all 514 holders

The largest institutional positions in Formfactor Inc at the end of Q2 2026; share changes are against Q1 2026.

Institutions holding FORM in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.10,484,409$1.68B0.02%−1,763,165−14.4%Reduced
Vanguard Portfolio Management LLC5,242,203$838.4M0.04%−637,805−10.8%Reduced
Earnest Partners LLC3,763,214$601.9M2.17%−1,111,951−22.8%Reduced
Vanguard Capital Management LLC3,515,254$562.2M0.01%+42,763+1.2%Added
State Street Corp2,581,477$412.9M0.01%−346,662−11.8%Reduced
Polar Capital Holdings Plc2,146,098$343.2M0.97%−146,215−6.4%Reduced
Geode Capital Management, LLC1,833,001$294.5M0.02%−354,864−16.2%Reduced
Bank of America Corp1,783,638$285.3M0.02%−697,421−28.1%Reduced
Primecap Management Co1,690,114$270.3M0.16%−98,530−5.5%Reduced
Invesco Ltd.1,578,533$252.5M0.02%+340,170+27.5%Added

Holders of 5% or more of FORM

See all 3 holders and filings

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Formfactor Inc.

Largest holders of FORM from 13D and 13G filings
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A12.40%9.68M shares–Jul 28, 20261 filingJul 28, 2026SEC
Vanguard Portfolio Management LLC13G7.61%5.94M sharesNewApr 29, 20261 filingApr 29, 2026SEC
Vanguard Capital Management LLC13G5.21%4.07M sharesNewApr 29, 20261 filingApr 29, 2026SEC