Therese Tucker - May 18, 2021 Form 4 Insider Report for BLACKLINE, INC. (BL)

Role: Executive Chair, Director
Signature: /s/ Karole Morgan-Prager, Attorney-in-Fact
Stock symbol: BL
Transactions as of: May 18, 2021
Transactions value $: -$1,039,735
Form type: 4
Date filed: 5/20/2021, 06:08 PM
Next filing: May 21, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BL	Common Stock	Sale	-$71.3K	-700	-0.03%	$101.89	2.2M	May 18, 2021	Brian & Therese Tucker Living Trust	F1, F2
transaction	BL	Common Stock	Sale	-$72.3K	-700	-0.03%	$103.26	2.2M	May 18, 2021	Brian & Therese Tucker Living Trust	F1, F3
transaction	BL	Common Stock	Sale	-$416K	-4.01K	-0.18%	$103.72	2.19M	May 18, 2021	Brian & Therese Tucker Living Trust	F1, F4
transaction	BL	Common Stock	Sale	-$480K	-4.59K	-0.21%	$104.62	2.19M	May 18, 2021	Brian & Therese Tucker Living Trust	F1, F5
holding	BL	Common Stock						172K	May 18, 2021	Direct
holding	BL	Common Stock						874K	May 18, 2021	Tucker Legacy Trust
holding	BL	Common Stock						577K	May 18, 2021	Isaac Tucker 2012 Irrevocable Trust
holding	BL	Common Stock						577K	May 18, 2021	Roseanna Tucker 2012 Irrevocable Trust
holding	BL	Common Stock						251K	May 18, 2021	Tucker Seimetz Safety Net Trust
holding	BL	Common Stock						54.1K	May 18, 2021	Claire Seimetz 2015 Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The sale transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 27, 2020.
F2	The sale price represents the weighted-average price of shares sold ranging from $101.39 to $102.31 per share. Upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
F3	The sale price represents the weighted-average price of shares sold ranging from $102.98 to $103.325 per share. Upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
F4	The sale price represents the weighted-average price of shares sold ranging from $103.445 to $104.175 per share. Upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.
F5	The sale price represents the weighted-average price of shares sold ranging from $104.435 to $104.81 per share. Upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4.