BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

ArrowMark Colorado Holdings LLC's Holding History (CIK: 0001483859)

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

Q4 2017

Shares 166,394 Value ($000) $5,458 Avg Close $35.01 Range $32.67 - $39.00

Q3 2017

Shares 143,074 Value ($000) $4,882 Avg Close $33.82 Range $28.79 - $40.28

Q2 2017

Shares 127,332 Value ($000) $4,551 Avg Close $33.14 Range $28.97 - $38.83

Q1 2017

Shares 119,029 Value ($000) $3,542 Avg Close $28.03 Range $25.95 - $31.40

Q4 2016

Shares 19,525 Value ($000) $539 Avg Close $25.56 Range $21.66 - $28.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	166,394	$5,458	$35.01	$32.67 - $39.00
Q3 2017	143,074	$4,882	$33.82	$28.79 - $40.28
Q2 2017	127,332	$4,551	$33.14	$28.97 - $38.83
Q1 2017	119,029	$3,542	$28.03	$25.95 - $31.40
Q4 2016	19,525	$539	$25.56	$21.66 - $28.77