Insys Therapeutics Completes Two-for-One Stock Split Through Stock Dividend

Insys Therapeutics, Inc.

("Insys" or "the Company") today announced that the Company has completed its previously disclosed two-for-one stock split, effected through a stock dividend. The record date for the stock split was the close of business on May 26, 2015, and share distribution occurred on Friday, June 5, 2015. As a result of the dividend, shareholders received one additional share of Insys Therapeutics, Inc. common stock, par value $0.01, for each share they held as of the record date. Total shares outstanding increased from approximately 35.8 million to 71.6 million shares. Insys' common stock will begin trading on a split-adjusted basis today. "This action facilitates shareholder liquidity, and reflects our confidence in the strength and continuing growth of our Company," said Michael L. Babich, President and Chief Executive Officer. "We continue to focus our clinical, regulatory and commercial expertise on developing and successfully commercializing innovative products, which we believe will enable us to build long-term value."