BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q2 2017

Shares 170,816 Value ($000) $6,105 Avg Close $33.14 Range $28.97 - $38.83

Q1 2017

Shares 6,154 Value ($000) $183 Avg Close $28.03 Range $25.95 - $31.40

Q4 2016

Shares 6,211 Value ($000) $172 Avg Close $25.56 Range $21.66 - $28.77

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	170,816	$6,105	$33.14	$28.97 - $38.83
Q1 2017	6,154	$183	$28.03	$25.95 - $31.40
Q4 2016	6,211	$172	$25.56	$21.66 - $28.77