BLACKLINE, INC. — Director's Dealing 2024

Jun 6, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2024-06-04

Reporting Person: Partin Mark (CHIEF FINANCIAL OFFICER)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-06-04	Common Stock	M	50000	$14.00	Acquired	279341	Direct
2024-06-04	Common Stock	S	44029	$47.299	Disposed	235312	Direct
2024-06-04	Common Stock	S	5971	$47.994	Disposed	229341	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-06-04	Stock Option (Right to Buy)	$14.00	M	50000	Disposed	2025-03-29	Common Stock (50000)	Direct

Footnotes

F1: The sale transaction reported on this Form 4 was effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 6, 2024.

F2: The sale price represents the weighted average price of shares sold ranging from $46.76 to $47.728 per share, and is rounded to the nearest tenth of a cent. 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 $47.76 to $48.17 per share, and is rounded to the nearest tenth of a cent. 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 option is fully vested and immediately exercisable.