PDF Solutions announced a stock offering of about 3.81 million shares, including 500,000 new shares and 3.31 million from Advantest America.
After the announcement, after‑hours shares fell 6.9% to $48, despite closing the regular session up 1.2% at $51.57.
The offering is being managed solely by Morgan Stanley, with PDF Solutions having roughly 39.9 million shares outstanding.
Stock has risen 81% YTD and hit a record intraday high of $56.46 on Monday.