According to Xconomy, the high-profile drone startup, which raised $50 million in venture funding early last year in a Series C funding round led by San Diego-based Qualcomm (NASDAQ: QCOM), has raised almost $26.7 million in a combination of securities, convertible debt, and debt, according to a regulatory filing Wednesday.

The company could raise up to $45 million through the financing, which began May 21st, according to the filing.

No details about the latest financing could be found on the company's website. CEO Chris Anderson, the author and former Wired magazine editor who co-founded 3D Robotics in 2009, did not respond to an e-mail query about the financing yesterday afternoon.

If the financing represents a fresh infusion of capital, it would bring total funding for 3D Robotics to roughly $150 million over the past seven years.

The company's existing investors include Atlantic Bridge Ventures, Foundry Group, Mayfield, O'Reilly AlphaTech Ventures, Qualcomm Ventures, SanDisk, SK Ventures, True Ventures, WestSummit Capital Management, and Richard Branson.