PDF Solutions (PDFS) said late Wednesday it launched a public offering of over 3.8 million common shares.
More than 3.3 million shares will be sold by existing stakeholder Advantest America while 500,000 shares will be offered by the company, according to a statement.
The company will grant the underwriters a 30-day overallotment option to buy up to an additional 571,038 shares, the company said.
Shares of the company were down nearly 10% during after-hours trading.