Tapping his past investment banking experience, Squires will focus on global growth and partnership strategies.
Squires most recently served as a managing director and co-head of equity-linked capital markets for BMO Capital Markets, where he led Aurora's most recent convertible debt offering.
"With deep experience in the U.S. and Canadian capital markets, Carey has been a trusted advisor to Aurora on a variety of growth initiatives, including our recently successful capital raise," Aurora CEO Michael Singer said in a statement, noting Squires will focus on developing "key strategic initiatives, including partnerships and M&A opportunities."
Shares of Aurora lit up last month after the company announced an advisory partnership with activist investor Nelson Peltz. Analysts lauded the move as a strong sign that the world's second most-valuable cannabis company is under solid direction.
The company's stock was little changed on Thursday. it ended the day Wednesday down 13 cents, or 1.43%, at $8.93 on the New York Stock Exchange. The company's shares also trade on the Toronto Stock Exchange under the symbol ACB.