BLACKLINE, INC. — Director's Dealing 2018

May 11, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2018-05-09

Reporting Person: THOMPSON KEVIN B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-09	Common Stock	A	1994	$0.00	Acquired	1994	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-09	Stock Option (right to buy)	$41.37	A	4396	Acquired	2028-05-08	Common Stock (4396)	Direct

Footnotes

F1: Reflects automatic annual restricted stock unit ("RSU") awards pursuant to the Issuer's Outside Director Compensation Policy.

F2: The reported securities awarded on May 9, 2018 (the "Award Date") represent RSUs which vest in full upon the earlier of the one (1) year anniversary of the Award Date or the day prior to the Issuer's next annual meeting of the stockholders and in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.

F3: The shares subject to the option will vest in full upon the earlier of the one (1) year anniversary of the Award Date or the day prior to the Issuer's next annual meeting of the stockholders and in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.