X0306 4/A 2016-11-08 2016-11-14 0 0000811240 BIOLASE, INC BIOL 0001647860 Flynn Harold C Jr. C/O BIOLASE, INC. 4 CROMWELL IRVINE CA 92618 1 1 0 0 President and CEO Stock Option (right to buy) 1.45 2016-11-08 4 A 0 1000000 0.00 A 2026-11-08 Common Stock 1000000 2307903 D Restricted Stock Unit 2016-11-08 4 A 0 0 0.00 A Common Stock 0 652500 D One-half of the stock options vest on the second anniversary of the grant date, and the remaining one-half vests ratably on a monthly basis over a two-year period commencing one month following the second anniversary of the grant date, subject to the Reporting Person's continued service with the Company through the applicable vesting dates. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. On November 23, 2016, the Company and the Reporting Person entered into a letter agreement cancelling the November 8, 2016 restricted stock unit award representing the Reporting Person's right to acquire 1,000,000 shares of the Company's common stock because it was issued in excess of the limitations under the BIOLASE, Inc. 2002 Stock Incentive Plan, as amended. The restricted stock units vest based upon specific performance criteria, subject to the Reporting Person's continued service with the Company through the applicable vesting dates. /s/ Michael C. Carroll, attorney-in-fact 2016-11-23