BIOLASE INC

CUSIP: 090911108 Class: COMMON STOCK

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

Note: Option positions (PUT/CALL) are excluded.

Q1 2018
Shares 134,601 Value ($000) $55 Avg Close — Range —
Q4 2017
Shares 134,601 Value ($000) $57 Avg Close — Range —
Q3 2017
Shares 100,000 Value ($000) $60 Avg Close — Range —
Q2 2017
Shares 91,000 Value ($000) $88 Avg Close — Range —
Q1 2017
Shares 91,000 Value ($000) $123 Avg Close — Range —
Q4 2016
Shares 91,000 Value ($000) $127 Avg Close — Range —
Q3 2016
Shares 91,455 Value ($000) $160 Avg Close — Range —
Q2 2016
Shares 91,455 Value ($000) $107 Avg Close — Range —
Q1 2016
Shares 91,455 Value ($000) $120 Avg Close — Range —
Q4 2015
Shares 91,455 Value ($000) $77 Avg Close — Range —
Q3 2015
Shares 91,455 Value ($000) $82 Avg Close — Range —
Q2 2015
Shares 91,455 Value ($000) $159 Avg Close — Range —
Q1 2015
Shares 91,455 Value ($000) $185 Avg Close — Range —
Q4 2014
Shares 91,455 Value ($000) $241 Avg Close — Range —
Q3 2014
Shares 91,455 Value ($000) $228 Avg Close — Range —
Q2 2014
Shares 91,455 Value ($000) $201 Avg Close — Range —
Q1 2014
Shares 91,455 Value ($000) $220 Avg Close — Range —
Q4 2013
Shares 91,000 Value ($000) $258 Avg Close — Range —
Q3 2013
Shares 95,475 Value ($000) $183 Avg Close — Range —
Q2 2013
Shares 95,475 Value ($000) $342 Avg Close — Range —