InsiderTrades.com logo

FORM Insider Trading

Insider Ownership Percentage: 0.96%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $5,244,685.30

FormFactor Insider Trading History Chart

This chart shows the insider buying and selling history at FormFactor by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

FormFactor Share Price & Price History

Current Price: $93.30
Price Change: ▼ Price Decrease of -1.58 (-1.67%)
As of 02/10/2026 05:00 PM ET

This chart shows the closing price history over time for FORM up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

FormFactor Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/15/2026Mike SlessorCEOSell13,088$76.81$1,005,289.28472,907View SEC Filing Icon  
1/6/2026Mike SlessorCEOSell39,606$65.00$2,574,390.00485,995View SEC Filing Icon  
12/17/2025Mike SlessorCEOSell7,669$56.36$432,224.84525,601View SEC Filing Icon  
12/2/2025Kelley Steven-WaissDirectorSell2,700$55.97$151,119.0032,779View SEC Filing Icon  
11/19/2025Mike SlessorCEOSell8,403$50.06$420,654.18533,270View SEC Filing Icon  
11/17/2025Thomas St. DennisDirectorSell2,000$49.85$99,700.0038,957View SEC Filing Icon  
9/12/2025Kelley Steven-WaissDirectorSell3,600$30.43$109,548.0035,479View SEC Filing Icon  
8/13/2025Rebeca Obregon-JimenezDirectorSell4,000$29.55$118,200.0013,126View SEC Filing Icon  
5/29/2025Thomas St. DennisDirectorSell3,000$31.24$93,720.0040,957View SEC Filing Icon  
5/1/2025Mike SlessorCEOSell4,000$31.72$126,880.00510,650View SEC Filing Icon  
4/1/2025Mike SlessorCEOSell4,000$28.24$112,960.00514,650View SEC Filing Icon  
2/3/2025Mike SlessorCEOSell4,000$38.98$155,920.00518,531View SEC Filing Icon  
1/2/2025Mike SlessorCEOSell4,000$44.44$177,760.00522,531View SEC Filing Icon  
12/2/2024Mike SlessorCEOSell4,000$40.59$162,360.00526,531View SEC Filing Icon  
10/1/2024Mike SlessorCEOSell4,000$45.28$181,120.00530,276View SEC Filing Icon  
9/3/2024Mike SlessorCEOSell4,000$46.31$185,240.00534,276View SEC Filing Icon  
8/6/2024Jorge TitingerDirectorSell6,770$41.94$283,933.8012,970View SEC Filing Icon  
8/1/2024Mike SlessorCEOSell4,000$50.93$203,720.00523,187View SEC Filing Icon  
7/1/2024Mike SlessorCEOSell4,000$59.00$236,000.00487,581View SEC Filing Icon  
5/28/2024Rebeca Obregon-JimenezDirectorSell4,833$57.59$278,332.4710,598View SEC Filing Icon  
5/20/2024Brian C. WhiteDirectorSell3,290$57.00$187,530.0011,828View SEC Filing Icon  
5/10/2024Thomas St. DennisDirectorSell2,000$56.30$112,600.0036,701View SEC Filing Icon  
5/7/2024Shai ShaharCFOSell6,094$55.76$339,801.4415,669View SEC Filing Icon  
5/7/2024Sheri RhodesDirectorSell13,319$56.02$746,130.387,634View SEC Filing Icon  
5/1/2024Mike SlessorCEOSell4,000$43.75$175,000.00491,781View SEC Filing Icon  
4/1/2024Mike SlessorCEOSell4,000$45.94$183,760.00495,781View SEC Filing Icon  
3/4/2024Shai ShaharCFOSell10,000$44.51$445,100.0027,591View SEC Filing Icon  
3/1/2024Mike SlessorCEOSell4,000$43.38$173,520.00499,781View SEC Filing Icon  
2/12/2024Shai ShaharCFOSell10,000$42.12$421,200.0067,141View SEC Filing Icon  
12/1/2023Rebeca Obregon-JimenezDirectorSell8,490$37.51$318,459.9011,603View SEC Filing Icon  
11/20/2023Shai ShaharCFOSell16,618$39.49$656,244.8277,941View SEC Filing Icon  
11/14/2023Thomas St. DennisDirectorSell3,792$38.24$145,006.0838,701View SEC Filing Icon  
11/9/2023Shai ShaharCFOSell10,986$35.02$384,729.72107,933View SEC Filing Icon  
3/6/2023Shai ShaharCFOSell4,759$29.68$141,247.1272,900View SEC Filing Icon  
2/13/2023Mike SlessorCEOSell10,000$31.97$319,700.00477,438View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for FormFactor (NASDAQ:FORM)

98.76% of FormFactor stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at FORM by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

FormFactor Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/10/2026Natixis Advisors LLC418,631$23.35M0.0%+14.3%0.540%Search for SEC Filing on Google Icon
2/10/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS19,191$1.07M0.0%-2.3%0.025%Search for SEC Filing on Google Icon
2/10/2026BNP Paribas Financial Markets95,926$5.35M0.0%-75.2%0.124%Search for SEC Filing on Google Icon
2/10/2026Impact Partnership Wealth LLC6,760$0.38M0.0%N/A0.009%Search for SEC Filing on Google Icon
2/10/2026Norges Bank563,841$31.45M0.0%N/A0.727%Search for SEC Filing on Google Icon
2/10/2026Savant Capital LLC5,057$0.28M0.0%-61.1%0.007%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC48,655$2.71M0.0%+20.1%0.063%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC1,885,847$105.21M0.0%+0.4%2.433%Search for SEC Filing on Google Icon
2/9/2026Jackson Creek Investment Advisors LLC30,547$1.70M0.5%N/A0.039%Search for SEC Filing on Google Icon
2/9/2026Royce & Associates LP1,157,891$64.59M0.7%-21.2%1.494%Search for SEC Filing on Google Icon
2/9/2026Fisher Asset Management LLC436,045$24.32M0.0%+206.4%0.562%Search for SEC Filing on Google Icon
2/9/2026Clearstead Advisors LLC1,050$59K0.0%+58.9%0.001%Search for SEC Filing on Google Icon
2/9/2026Legal & General Group Plc202,151$11.28M0.0%-1.8%0.261%Search for SEC Filing on Google Icon
2/9/2026New Age Alpha Advisors LLC4,018$0.22M0.0%-33.2%0.005%Search for SEC Filing on Google Icon
2/9/2026Hantz Financial Services Inc.1,671$93K0.0%+60.2%0.002%Search for SEC Filing on Google Icon
2/6/2026EverSource Wealth Advisors LLC1,141$64K0.0%-25.6%0.001%Search for SEC Filing on Google Icon
2/6/2026PNC Financial Services Group Inc.9,330$0.52M0.0%-42.3%0.012%Search for SEC Filing on Google Icon
2/6/2026Handelsbanken Fonder AB26,060$1.45M0.0%-12.4%0.034%Search for SEC Filing on Google Icon
2/6/2026ProShare Advisors LLC15,147$0.85M0.0%-48.4%0.020%Search for SEC Filing on Google Icon
2/6/2026HighTower Advisors LLC13,470$0.75M0.0%-25.4%0.017%Search for SEC Filing on Google Icon
2/5/2026Bessemer Group Inc.562,042$31.35M0.0%-21.3%0.725%Search for SEC Filing on Google Icon
2/5/2026Thrivent Financial for Lutherans53,265$2.97M0.0%-4.3%0.069%Search for SEC Filing on Google Icon
2/5/2026Pinnacle Associates Ltd.239,778$13.38M0.2%-6.4%0.309%Search for SEC Filing on Google Icon
2/4/2026Oregon Public Employees Retirement Fund17,767$0.99M0.0%+2.4%0.023%Search for SEC Filing on Google Icon
2/4/2026Madison Asset Management LLC95,562$5.33M0.1%-36.1%0.123%Search for SEC Filing on Google Icon
2/4/2026First Eagle Investment Management LLC269,222$15.02M0.0%-10.6%0.347%Search for SEC Filing on Google Icon
2/4/2026LRI Investments LLC2,842$0.16M0.0%-23.8%0.004%Search for SEC Filing on Google Icon
2/3/2026Crossmark Global Holdings Inc.4,994$0.28M0.0%N/A0.006%Search for SEC Filing on Google Icon
2/3/2026Connable Office Inc.14,930$0.83M0.1%-4.6%0.019%Search for SEC Filing on Google Icon
2/3/2026Pier Capital LLC86,298$4.81M0.8%N/A0.111%Search for SEC Filing on Google Icon
2/2/2026Strs Ohio11,700$0.65M0.0%+192.5%0.015%Search for SEC Filing on Google Icon
2/2/2026Fifth Third Bancorp23,360$1.30M0.0%-9.3%0.030%Search for SEC Filing on Google Icon
2/2/2026Oppenheimer Asset Management Inc.61,400$3.43M0.0%-14.2%0.079%Search for SEC Filing on Google Icon
1/30/2026State of New Jersey Common Pension Fund D44,307$2.47M0.0%-42.0%0.057%Search for SEC Filing on Google Icon
1/30/2026Keybank National Association OH7,868$0.44M0.0%N/A0.010%Search for SEC Filing on Google Icon
1/30/2026Torren Management LLC739$41K0.0%N/A0.001%Search for SEC Filing on Google Icon
1/29/2026Comerica Bank43,653$2.44M0.0%-47.4%0.056%Search for SEC Filing on Google Icon
1/29/2026D.A. Davidson & CO.4,951$0.28M0.0%N/A0.006%Search for SEC Filing on Google Icon
1/29/2026Kestra Private Wealth Services LLC4,766$0.27M0.0%N/A0.006%Search for SEC Filing on Google Icon
1/29/2026Pictet Asset Management Holding SA10,874$0.61M0.0%-10.1%0.014%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG283,393$15.81M0.0%+38.8%0.366%Search for SEC Filing on Google Icon
1/29/2026Teachers Retirement System of The State of Kentucky19,368$1.08M0.0%-11.5%0.025%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.10,221,530$570.16M0.0%-0.8%13.186%Search for SEC Filing on Google Icon
1/28/2026Arizona State Retirement System21,418$1.20M0.0%-6.0%0.028%Search for SEC Filing on Google Icon
1/28/2026Peregrine Capital Management LLC181,590$10.13M0.3%-12.6%0.234%Search for SEC Filing on Google Icon
1/28/2026Universal Beteiligungs und Servicegesellschaft mbH9,511$0.53M0.0%+15.9%0.012%Search for SEC Filing on Google Icon
1/27/2026Evergreen Capital Management LLC6,744$0.38M0.0%N/A0.009%Search for SEC Filing on Google Icon
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank 16,210$0.90M0.0%+8.0%0.021%Search for SEC Filing on Google Icon
1/23/2026State of Alaska Department of Revenue42,187$2.35M0.0%+1.4%0.054%Search for SEC Filing on Google Icon
1/23/2026Choreo LLC5,655$0.32M0.0%N/A0.007%Search for SEC Filing on Google Icon
1/22/2026Massachusetts Financial Services Co. MA1,369,024$76.36M0.0%-35.8%1.766%Search for SEC Filing on Google Icon
1/21/2026Yousif Capital Management LLC21,060$1.18M0.0%-11.9%0.027%Search for SEC Filing on Google Icon
1/20/2026Harbor Capital Advisors Inc.54,648$3.05M0.2%-26.4%0.070%Search for SEC Filing on Google Icon
1/16/2026Blue Trust Inc.10,346$0.58M0.0%-12.6%0.013%Search for SEC Filing on Google Icon
1/16/2026Linden Thomas Advisory Services LLC39,800$2.22M0.2%-1.4%0.051%Search for SEC Filing on Google Icon
1/15/2026Allspring Global Investments Holdings LLC158,974$9.41M0.0%-33.8%0.205%Search for SEC Filing on Google Icon
1/14/2026Mirador Capital Partners LP31,374$1.75M0.2%-14.9%0.040%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC175,432$9.79M0.0%+1,158.7%0.226%Search for SEC Filing on Google Icon
1/9/2026Assenagon Asset Management S.A.562,769$31.39M0.0%+384.5%0.726%Search for SEC Filing on Google Icon
1/8/2026Wealth Enhancement Advisory Services LLC16,073$0.90M0.0%+2.4%0.021%Search for SEC Filing on Google Icon
1/5/2026GAMMA Investing LLC5,184$0.29M0.0%+12.6%0.007%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.271,535$9.89M0.0%-19.7%0.350%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.8,308$0.30M0.0%N/A0.011%Search for SEC Filing on Google Icon
11/17/2025CANADA LIFE ASSURANCE Co94,535$3.42M0.0%+8.8%0.122%Search for SEC Filing on Google Icon
11/17/2025Voleon Capital Management LP25,682$0.94M0.0%N/A0.033%Search for SEC Filing on Google Icon
11/17/2025Voloridge Investment Management LLC388,449$14.15M0.0%+13.7%0.501%Search for SEC Filing on Google Icon
11/17/2025Wexford Capital LP2,755$100K0.0%N/A0.004%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC42,072$1.53M0.0%-43.4%0.054%Search for SEC Filing on Google Icon
11/17/2025Susquehanna Fundamental Investments LLC74,495$2.71M0.1%-9.1%0.096%Search for SEC Filing on Google Icon
11/17/2025Sora Investors LLC113,538$4.14M0.4%+1.2%0.146%Search for SEC Filing on Google Icon
11/17/2025Polymer Capital Management US LLC122,000$4.44M0.5%N/A0.157%Search for SEC Filing on Google Icon
11/17/2025Numerai GP LLC6,559$0.24M0.0%N/A0.008%Search for SEC Filing on Google Icon
11/17/2025Mariner LLC25,678$0.94M0.0%-22.5%0.033%Search for SEC Filing on Google Icon
11/17/2025Mercer Global Advisors Inc. ADV7,352$0.27M0.0%N/A0.009%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC113,178$4.12M0.0%+357.3%0.146%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.36,210$1.32M0.0%-15.2%0.047%Search for SEC Filing on Google Icon
11/17/2025Holocene Advisors LP22,255$0.81M0.0%+193.4%0.029%Search for SEC Filing on Google Icon
11/17/2025Earnest Partners LLC5,947,088$216.59M0.9%-2.3%7.672%Search for SEC Filing on Google Icon
11/17/2025Cinctive Capital Management LP52,830$1.92M0.1%N/A0.068%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE2,533,340$92.26M0.0%-9.7%3.268%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC182,371$6.64M0.1%+1,755.2%0.235%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.2,397,161$87.31M0.0%+3.2%3.092%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.1,121,225$40.84M0.0%-0.6%1.446%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC16,289$0.59M0.0%N/A0.021%Search for SEC Filing on Google Icon
11/14/2025Creative Planning29,970$1.09M0.0%-6.2%0.039%Search for SEC Filing on Google Icon
11/14/2025SummitTX Capital L.P.104,959$3.82M0.2%N/A0.135%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.223,130$8.13M0.0%-18.4%0.288%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC147,751$5.38M0.0%-47.7%0.191%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP358,137$13.04M0.0%+542.7%0.462%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC299,859$10.92M0.0%+324.1%0.387%Search for SEC Filing on Google Icon
11/14/2025Comerica Bank82,929$3.02M0.0%+184.1%0.107%Search for SEC Filing on Google Icon
11/14/2025EHP Funds Inc.5,576$0.20M0.2%N/A0.007%Search for SEC Filing on Google Icon
11/13/2025Pathstone Holdings LLC52,687$1.92M0.0%-5.8%0.068%Search for SEC Filing on Google Icon
11/13/2025Entropy Technologies LP19,149$0.70M0.1%N/A0.025%Search for SEC Filing on Google Icon
11/13/2025Invesco Ltd.312,875$11.40M0.0%+4.7%0.404%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.1,640,144$59.73M0.1%+3.5%2.116%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG204,153$7.44M0.0%+2.3%0.263%Search for SEC Filing on Google Icon
11/13/2025Shannon River Fund Management LLC968,161$35.26M5.7%N/A1.249%Search for SEC Filing on Google Icon
11/13/2025Capital Fund Management S.A.16,553$0.60M0.0%-69.6%0.021%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets386,189$14.07M0.0%+5.8%0.498%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
FormFactor logo
FormFactor, Inc. designs, manufactures, and sells probe cards, analytical probes, probe stations, metrology systems, thermal systems, and cryogenic systems to semiconductor companies and scientific institutions in the United States, Taiwan, South Korea, China, Europe, Japan, Malaysia, Singapore, and internationally. It operates in two segments, Probe Cards and Systems. The company offers probe cards to test various semiconductor device types, including systems on a chip products, mobile application processors, microprocessors, microcontrollers, and graphic processors, as well as radio frequency, analog, mixed signal, image sensor, electro-optical, dynamic random access memory, NAND flash memory, and NOR flash memory devices, as well as computer processor devices; and analytical probes, which are used for a range of applications, including device characterization, electrical simulation model development, failure analysis, and prototype design debugging for universities, research institutions, semiconductor integrated device manufacturers, semiconductor foundries, and fabless semiconductor companies. It also provides probe systems for semiconductor design engineers to capture and analyze accurate data; surface metrology systems for the development, production, and quality control of semiconductor products; thermal subsystems, such as thermal chucks and other test systems used in probe stations and other applications; and precision cryogenic instruments, semiconductor tests, and measurement systems. In addition, the company offers on-site probe card maintenance and service training, seminars, and telephone support services. It markets and sells its products through direct sales force, manufacturers' representatives, and distributors. The company was incorporated in 1993 and is headquartered in Livermore, California.
Read More on FormFactor

Today's Range

Now: $93.30
Low: $92.16
High: $97.00

50 Day Range

MA: $66.22
Low: $53.83
High: $94.88

52 Week Range

Now: $93.30
Low: $22.58
High: $97.00

Volume

1,361,824 shs

Average Volume

1,668,826 shs

Market Capitalization

$7.23 billion

P/E Ratio

135.22

Dividend Yield

N/A

Beta

1.11

Who are the company insiders with the largest holdings of FormFactor?

FormFactor's top insider investors include:
  1. Mike Slessor (CEO)
  2. Shai Shahar (CFO)
  3. Dennis Thomas St (Director)
  4. Kelley Steven-Waiss (Director)
  5. Rebeca Obregon-Jimenez (Director)
  6. Jorge Titinger (Director)
  7. Brian C White (Director)
  8. Sheri Rhodes (Director)
Learn More about top insider investors at FormFactor.

Who are the major institutional investors of FormFactor?

FormFactor's top institutional investors include:
  1. Vanguard Group Inc. — 13.19%
  2. Geode Capital Management LLC — 2.43%
  3. Massachusetts Financial Services Co. MA — 1.77%
  4. Royce & Associates LP — 1.49%
  5. Assenagon Asset Management S.A. — 0.73%
  6. Bessemer Group Inc. — 0.73%
Learn More about top institutional investors of FormFactor stock.

Which major investors are selling FormFactor stock?

During the last quarter, FORM stock was sold by these institutional investors:
  1. Massachusetts Financial Services Co. MA
  2. Royce & Associates LP
  3. Bessemer Group Inc.
  4. Allspring Global Investments Holdings LLC
  5. Vanguard Group Inc.
  6. Madison Asset Management LLC
  7. Comerica Bank
  8. State of New Jersey Common Pension Fund D
In the last year, company insiders that have sold FormFactor company stock include:
  1. Mike Slessor (CEO)
  2. Shai Shahar (CFO)
  3. Dennis Thomas St (Director)
  4. Kelley Steven-Waiss (Director)
Learn More investors selling FormFactor stock.

Which major investors are buying FormFactor stock?

During the previous quarter, FORM stock was purchased by institutional investors including:
  1. Assenagon Asset Management S.A.
  2. Fisher Asset Management LLC
  3. SG Americas Securities LLC
  4. Pier Capital LLC
  5. UBS Group AG
  6. Jackson Creek Investment Advisors LLC
  7. Keybank National Association OH
  8. Strs Ohio