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Stocks/FORM/SEC Filings/S-3 Nov 9, 2026

FORM S-3: Shelf registration

FormFactor

Filed with the SEC on Nov 9, 2026 · accession 0001039399-26-000047

FORM filed a S-3 (shelf registration) with the SEC on Nov 9, 2026. FormFactor filed an automatic shelf registration statement on Form S-3 to register up to 2,234,887 shares of common stock held by Teradyne, Inc., which were issued in a private placement that closed on November 9, 2026. The stock moved +5.0% by the first close after the filing.

Summary of the filing

FormFactor filed an automatic shelf registration statement on Form S-3 to register up to 2,234,887 shares of common stock held by Teradyne, Inc., which were issued in a private placement that closed on November 9, 2026. FormFactor will not sell any shares and will not receive any proceeds from the resale.

For details, click here →How to read a S-3 →

Key details

Shares of common stock registered for resale by Teradyneshares 2.2M
Last reported sale price per share on November 6, 2026$81
RegistrantFormFactor, Inc.
Selling stockholderTeradyne, Inc.
Senior vice president and chief financial officerAric McKinnis
Senior vice president, chief legal officer and secretaryAlan Chan

How FORM stock reacted

Close before

$81.12

Nov 6, 2026

First close after

+5.03%

$85.20

5 trading days

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Since filing

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Frequently asked questions

What did FORM file with the SEC on Nov 9, 2026?

FORM filed a S-3 (Shelf registration). FormFactor filed an automatic shelf registration statement on Form S-3 to register up to 2,234,887 shares of common stock held by Teradyne, Inc., which were issued in a private placement that closed on November 9, 2026. FormFactor will not sell any shares and will not receive any proceeds from the resale.

What does a shelf registration mean for FORM stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a S-3?

Lets the company sell shares or debt later, quickly — a sign more shares may come. Check the maximum amount and compare it with the company’s size. A later "424B" filing shows an actual sale under the shelf.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A S-3 (shelf registration): Lets the company sell shares or debt later, quickly — a sign more shares may come.

How did FORM stock react to this filing?

FORM closed at $81.12 before the filing and $85.20 on Nov 9, 2026 (+5.03%).

Other FORM SEC filings

  • 10-Q · SEC filingNov 3, 2026
  • 8-K · SEC filingOct 28, 2026
  • 8-K · Material agreementOct 13, 2026
  • SCHEDULE 13G/A · SEC filingAug 14, 2026
  • 10-Q · SEC filingAug 4, 2026
  • 8-K · Guidance raiseJul 29, 2026
  • 144 · Insider sale plannedJun 15, 2026
  • 144 · Insider sale plannedJun 10, 2026
  • 144 · Insider sale plannedJun 4, 2026
  • 144 · Insider sale plannedJun 2, 2026

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FORM overviewFORM analysisFORM newsLatest SEC filings
Source: SEC EDGAR filing 0001039399-26-000047. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.