Theranos, a Menlo Park company developing devices that enable healthcare professionals and pharmaceutical companies to track patients’ responses to drugs, has raised $28.5 million of a $30 million planned third round, according to a filing with the Securities and Exchange Commission cited by VentureWire (sub required).

ATA Ventures, Tako Ventures, Draper Fisher Jurvetson and Continental Properties Inc. were listed as investors in the Form D filing received by the SEC on Nov. 17.

The company raised more than $10 million in a second round in March, and an undisclosed amount in 2004, according to the report.

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