BLACKLINE, INC. — Director's Dealing 2020

May 20, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2020-05-18

Reporting Person: Partin Mark (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-18	Common Stock	M	3800	$14.00	Acquired	105191	Direct
2020-05-18	Common Stock	S	3800	$65.01	Disposed	101391	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-18	Stock Option (right to buy)	$14.00	M	3800	Disposed	2025-03-29	Common Stock (3800)	Direct

Footnotes

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 February 18, 2020.

F2: The shares subject to the option vest in 4 equal, annual installments beginning on the one year anniversary of January 20, 2015.