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FORMFACTOR INC
FORM·Nasdaq·
United States·USD
United States·USD$98.51
+3.48 (+3.66%)
Close · Oct 23, 2026 · Close Prices from Tiingo.com
FORM
FORMFACTOR INC · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
FORMS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of FORM by members of U.S. Congress · 2 on record · 2 in the last 12 months
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Michael T. McCaulHouse · R · TX |
FORMFORMFACTOR INC · Stock |
Purchase $1,001 - $15,000 |
Oct 14, 2026 | Aug 4, 2026 | Filing ↗ |
| Michael T. McCaulHouse · R · TX |
FORMFORMFACTOR INC · Stock |
Purchase $1,001 - $15,000 |
Oct 14, 2026 | Aug 5, 2026 | Filing ↗ |
Whale Activity
Position changes in FORM reported for 2026-09-30 by 1 tracked institutional filer
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| REINHART PARTNERS, LLC. | 659.7K | $98.5M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by FORM insiders, by quarter · Form 4
Recent Insider Transactions
1,066 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| SLESSOR MIKECEO · Director | Sale | −7,703 | $125.36 | $966K | Oct 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −2,195 | $124.23 | $273K | Oct 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −1,200 | $125.92 | $151K | Oct 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −1,000 | $105.80 | $106K | Sep 16, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −7,773 | $105.12 | $817K | Sep 16, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −8,737 | $104.26 | $911K | Sep 16, 2026 | Form 4 ↗ |
| STEVEN-WAISS KELLEYDirector | Sale | −2,100 | $96.10 | $202K | Sep 3, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −686 | $133.33 | $91K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −5,535 | $132.50 | $733K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −1,125 | $131.65 | $148K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −3,282 | $130.54 | $428K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −2,892 | $129.55 | $375K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Sale | −2,482 | $128.72 | $319K | Aug 14, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Tax withholding | −3,288 | $117.39 | $386K | Aug 7, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Option exercise | +5,908 | $0.00 | $0 | Aug 7, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Tax withholding | −78.9K | $117.39 | $9.3M | Aug 7, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Option exercise | +141.8K | $0.00 | $0 | Aug 7, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Tax withholding | −3,357 | $115.21 | $387K | Aug 6, 2026 | Form 4 ↗ |
| SLESSOR MIKECEO · Director | Option exercise | +6,031 | $0.00 | $0 | Aug 6, 2026 | Form 4 ↗ |
| McKinnis Aric BrendanCFO, SVP Global Finance | Tax withholding | −274 | $115.21 | $32K | Aug 6, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding FORM · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 4.7M | $750.8M | 0.67% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.5M | $396.0M | 0.02% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.8M | $285.8M | 0.15% | Jun 30, 2026 |
| iShares Russell 2000 ETF iSHARES TRUST | 1.9M | $184.7M | 0.26% | Mar 31, 2026 |
| VANGUARD CAPITAL OPPORTUNITY FUND VANGUARD HORIZON FUNDS | 1.0M | $167.1M | 0.51% | Jun 30, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 1.0M | $164.7M | 0.35% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 893.8K | $142.9M | 0.15% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.1M | $142.3M | 0.08% | May 31, 2026 |
| FULLERTHALER BEHAVIORAL SMALL-CAP GROWTH Capitol Series Trust | 780.0K | $124.7M | 2.02% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF SPDR SERIES TRUST | 715.2K | $114.4M | 0.68% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list FORM's shares (CUSIP 346375108), each fund at its latest report since Mar 25, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming FORMFACTOR INC as client
No lobbying filings found naming FORMFACTOR INC as the client.
Government Contracts
Federal awards to formfactor · USAspending
$558KAwarded · 1 contract on record
- Department of CommerceCHIPS R&D CALNET AUTPPROBE$558K
Sep 20, 2024 · ↗
U.S. Patents
Recent USPTO applications naming FORMFACTOR INC
No USPTO patent applications found for FORMFACTOR INC.
Annual Financials
From FORM's 10-K filings · XBRL
No annual XBRL figures on record for FORM. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in FORM's price history.
Material Events (8-K)
Corporate events filed with the SEC
About FORMFACTOR INC
From SEC EDGAR company records
Industry (SIC 3674)Semiconductors & Related Devices
SectorTechnology
HeadquartersLIVERMORE, CA
IncorporatedDE
SEC CIK0001039399 ↗