X0306 4 2016-01-21 0 0000811240 BIOLASE, INC BIOL 0001021412 SCHULER JACK W 100 NORTH FIELD DRIVE SUITE 360 LAKE FOREST IL 60045 0 0 1 0 0001661351 Jack W. Schuler Living Trust 100 NORTH FIELD DRIVE SUITE 360 LAKE FOREST IL 60045 0 0 1 0 Common Stock 2016-01-21 4 P 0 4800 0.7791 A 6453374 I By Trust Common Stock 2016-01-22 4 P 0 1870 0.7720 A 6455244 I By Trust Common Stock 14800 I By Spouse These shares are held by the Jack W. Schuler Living Trust (the "Trust"). Mr. Schuler serves as sole trustee to the Trust. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.765 to $0.78, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.77 to $0.78, inclusive. /s/ Jack Schuler, as self and as Trustee of the Jack W. Schuler Living Trust 2016-01-25