BLACKLINE, INC. — Director's Dealing 2019

May 17, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2019-05-15

Reporting Person: Spanicciati Mario (Director, Chief Strategy Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-15	Common Stock	A	9490	$0.00	Acquired	20280	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-15	Stock Option (right to buy)	$48.65	A	19930	Acquired	2029-05-14	Common Stock (19930)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	298928	Indirect
Common Stock	2157163	Indirect

Footnotes

F1: Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on the one (1) year anniversary of February 20, 2019 (the "Annual RSU Vesting Commencement Date"), and 1/16th of the RSUs will vest every three months thereafter on the same day of the month as the Annual RSU Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date.

F2: 25% of the shares subject to the Option will vest on the one (1) year anniversary of February 20, 2019 (the "Annual Option Vesting Commencement Date"), and 1/16th of the shares subject to the Option will vest every three months thereafter on the same day of the month as the Annual Option Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date.