BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

MAINSTAY CAPITAL MANAGEMENT LLC /ADV's Holding History (CIK: 0001127612)

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

Q4 2020

Shares 3,192 Value ($000) $426 Avg Close $111.58 Range $87.33 - $141.82

Q3 2020

Shares 4,552 Value ($000) $408 Avg Close $83.91 Range $71.20 - $94.06

Q2 2020

Shares 4,677 Value ($000) $388 Avg Close $66.77 Range $47.58 - $84.99

Q1 2020

Shares 4,242 Value ($000) $221 Avg Close $58.49 Range $38.32 - $74.44

Q3 2019

Shares 4,620 Value ($000) $220 Avg Close $49.78 Range $42.23 - $56.29

Q2 2019

Shares 4,620 Value ($000) $248 Avg Close $49.76 Range $44.08 - $56.04

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	3,192	$426	$111.58	$87.33 - $141.82
Q3 2020	4,552	$408	$83.91	$71.20 - $94.06
Q2 2020	4,677	$388	$66.77	$47.58 - $84.99
Q1 2020	4,242	$221	$58.49	$38.32 - $74.44
Q3 2019	4,620	$220	$49.78	$42.23 - $56.29
Q2 2019	4,620	$248	$49.76	$44.08 - $56.04