Mark Partin - 01 May 2023 Form 4 Insider Report for BLACKLINE, INC. (BL)

Role: Chief Financial Officer
Signature: /s/ Karole Morgan-Prager, Attorney-in-Fact
Issuer symbol: BL
Transactions as of: 01 May 2023
Net transactions value: -$207,100
Form type: 4
Filing time: 01 May 2023, 20:33:24 UTC
Previous filing: 03 Apr 2023
Next filing: 22 May 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BL	Common Stock	Options Exercise	$70,000	+5,000	+2.5%	$14.00	204,479	01 May 2023	Direct	F1
transaction	BL	Common Stock	Sale	$277,100	-5,000	-2.4%	$55.42	199,479	01 May 2023	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	BL	Stock Option (Right to Buy)	Options Exercise	$0	-5,000	-5.1%	$0.000000	92,676	01 May 2023	Common Stock	5,000	$14.00	Direct	F1, F2

* 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 December 9, 2022.
F2	The option is fully vested and immediately exercisable.