BLACKLINE, INC. — Director's Dealing 2021

Sep 16, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BLACKLINE, INC. (BL)
CIK: 0001666134
Period of Report: 2021-09-13

Reporting Person: Tucker Therese (Director, Executive Chair)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-09-13	Common Stock	G	251204	$0.00	Disposed	1803991	Indirect
2021-09-13	Common Stock	G	125602	$0.00	Acquired	125602	Indirect
2021-09-13	Common Stock	G	125602	$0.00	Acquired	125602	Indirect
2021-09-14	Common Stock	G	129897	$0.00	Disposed	1674094	Indirect
2021-09-14	Common Stock	G	129897	$0.00	Acquired	129897	Indirect
2021-09-14	Common Stock	S	25424	$118.3495	Disposed	100178	Indirect
2021-09-14	Common Stock	S	4273	$118.3986	Disposed	1669821	Indirect
2021-09-14	Common Stock	S	4927	$119.3116	Disposed	1664894	Indirect
2021-09-14	Common Stock	S	1700	$120.1776	Disposed	1663194	Indirect
2021-09-14	Common Stock	S	25424	$118.3495	Disposed	100178	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	156223	Direct
Common Stock	874128	Indirect
Common Stock	577200	Indirect
Common Stock	577200	Indirect
Common Stock	250916	Indirect
Common Stock	54074	Indirect

Footnotes

F1: The transaction involved transfers without consideration to certain estate planning vehicles of the Reporting Person. The Reporting Person may be deemed to beneficially own the shares held by the recipients of the transferred shares.

F2: The sale price represents the weighted-average price of shares sold ranging from $118.09 to $118.94 per share. 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 transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 27, 2020.

F4: The sale price represents the weighted-average price of shares sold ranging from $118.00 to $118.97 per share. 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.

F5: The sale price represents the weighted-average price of shares sold ranging from $119.01 to $119.965 per share. 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.

F6: The sale price represents the weighted-average price of shares sold ranging from $120.00 to $120.33 per share. 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.

F7: The sale price represents the weighted-average price of shares sold ranging from $118.09 to $118.94 per share. 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.