A California woman has been charged with providing inside information on tech companies including Nvidia (NVDA) and Marvell (MRVL) to hedge fund managers, according to reports after a criminal complaint was unsealed Wednesday.

The Wall Street Journal reported that the woman, identified as Winifred Jiau of Fremont, Calif., was the seventh person publicly charged in the growing insider trading investigation with ties to Primary Global Research, a so-called “expert network” company that provides research and related services to fund managers.

Jiau allegedly gave managers at two different hedge funds Marvell’s financial data for two quarters in 2008 before they were publicly released.

Prosecutors contend that one of the hedge funds made more than $820,000 by trading on the information in a single quarter.