Karole Morgan-Prager - 20 Aug 2025 Form 4 Insider Report for BLACKLINE, INC. (BL)

Role: CHIEF LEGAL AND ADMINISTRATIVE
Signature: /s/ Karole Morgan-Prager
Issuer symbol: BL
Transactions as of: 20 Aug 2025
Net transactions value: -$116,473
Form type: 4
Filing time: 21 Aug 2025, 17:17:03 UTC
Previous filing: 21 May 2025
Next filing: 24 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Morgan-Prager Karole	CHIEF LEGAL AND ADMINISTRATIVE	21300 VICTORY BLVD., 12TH FLOOR, WOODLAND HILLS	/s/ Karole Morgan-Prager	21 Aug 2025	0001183627

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BL	Common Stock	Tax liability	$29,823	-571	-0.45%	$52.23	126,686	20 Aug 2025	Direct	F1
transaction	BL	Common Stock	Tax liability	$40,530	-776	-0.61%	$52.23	125,910	20 Aug 2025	Direct	F1
transaction	BL	Common Stock	Tax liability	$46,119	-883	-0.7%	$52.23	125,027	20 Aug 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units ("RSUs").