Graham Smith - 07 Sep 2021 Form 4 Insider Report for BLACKLINE, INC. (BL)

Role: Director
Signature: /s/ Karole Morgan-Prager, Attorney-in-Fact
Issuer symbol: BL
Transactions as of: 07 Sep 2021
Net transactions value: -$211,000
Form type: 4
Filing time: 08 Sep 2021, 16:21:15 UTC
Previous filing: 27 Aug 2021
Next filing: 15 Oct 2021
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BL	Common Stock	Options Exercise	$29,000	+2,000	+19%	$14.50	12,706	07 Sep 2021	Direct	F1
transaction	BL	Common Stock	Sale	$240,000	-2,000	-16%	$120.00	10,706	07 Sep 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	BL	Stock Option (right to buy)	Options Exercise	$0	-2,000	-3.5%	$0.000000	54,500	07 Sep 2021	Common Stock	2,000	$14.50	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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 March 12, 2021.
F2	The original option was granted for 100,000 shares and has been partially exercised. The shares subject to the original option vest in 4 equal, annual installments beginning on the one year anniversary of May 20, 2015.