Stockholders' Equity

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Stockholders' Equity

6. STOCKHOLDERS’ EQUITY

Common Stock

As of June 30, 2016, the Company had reserved 3,102,257 shares of common stock for issuance upon the exercise of outstanding common stock options and the vesting of restricted stock units. Also, 2,229,803 shares of the Company’s common stock were reserved for future grants of stock options (or other similar equity instruments) under the Rubicon Technology, Inc. 2016 Stock Incentive Plan (the “2016 Plan”) as of June 30, 2016.

Warrants

For the three and six months ended June 30, 2016, the Company had no common stock warrants outstanding.