BLACKLINE INC

Ticker: BL CUSIP: 09239B109 Class: Common Stock

Arlington Partners LLC's Holding History (CIK: 0001389848)

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

Q3 2021

Shares 228 Value ($000) $27 Avg Close $114.88 Range $104.34 - $126.59

Q2 2021

Shares 228 Value ($000) $25 Avg Close $109.21 Range $98.06 - $122.49

Q1 2021

Shares 228 Value ($000) $25 Avg Close $124.72 Range $100.58 - $154.61

Q4 2020

Shares 228 Value ($000) $30 Avg Close $111.58 Range $87.33 - $141.82

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	228	$27	$114.88	$104.34 - $126.59
Q2 2021	228	$25	$109.21	$98.06 - $122.49
Q1 2021	228	$25	$124.72	$100.58 - $154.61
Q4 2020	228	$30	$111.58	$87.33 - $141.82