BlackLine officer shares withheld for RSU taxes

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Form Type

Rhea-AI Filing Summary

BLACKLINE, INC. Chief Legal and Administrative Officer Karole Morgan-Prager reported routine tax-withholding transactions related to vesting restricted stock units. A total of 2,725 shares of common stock were withheld on May 20, 2026 at $30.84 per share, and she continues to hold 162,934 shares directly.

Insider Trade Summary

Exercise Price or Tax Liability: 2,725 shares

Exercise Price or Tax Liability 3 txns

Insider Morgan-Prager Karole

Role Chief Legal and Administrative

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	778	$30.84	$24K
Exercise Price or Tax Liability	Common Stock	884	$30.84	$27K
Exercise Price or Tax Liability	Common Stock	1,063	$30.84	$33K

Holdings After Transaction: Common Stock — 162,934 shares (Direct)

Footnotes (1)

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

Key Figures

Tax-withholding shares: 2,725 shares Withholding reference price: $30.84 per share Post-transaction holdings: 164,881 shares +2 more

5 metrics

Tax-withholding shares 2,725 shares Common stock withheld for RSU tax liability

Withholding reference price $30.84 per share Value used for common stock tax-withholding dispositions

Post-transaction holdings 164,881 shares Common stock held directly after latest reported transaction

Tax-withholding transactions 3 transactions All coded F for payment of tax liability

Individual F-code share amounts 1,063; 884; 778 shares Three separate common stock tax-withholding entries

Key Terms

restricted stock units, tax liability, Common Stock, tax-withholding disposition, +1 more

5 terms

restricted stock units financial

"in connection with the vesting of restricted stock units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax liability financial

"withheld to cover the Reporting Person's tax liability in connection"

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Payment of exercise price or tax liability by delivering securities financial

"transaction_code_description": "Payment of exercise price or tax liability by delivering securities""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did BlackLine (BL) executive Karole Morgan-Prager report in this Form 4?

Karole Morgan-Prager reported tax-withholding dispositions of BlackLine common stock. The shares were withheld to satisfy tax liabilities arising from the vesting of restricted stock units, rather than from open-market sales, making these administrative, compensation-related transactions.

How many BlackLine (BL) shares were withheld for taxes in this filing?

A total of 2,725 BlackLine common shares were withheld for taxes. These came from three separate F-code transactions, each tied to RSU vesting, and represent payment of tax liability using shares instead of cash, not discretionary selling in the market.

At what price were the BlackLine (BL) shares valued for the tax-withholding?

The withheld BlackLine shares were valued at $30.84 per share. This price is used in the Form 4 to calculate the value of shares delivered to cover tax liabilities from vested restricted stock units, not as a record of an open-market trade.

How many BlackLine (BL) shares does Karole Morgan-Prager hold after these transactions?

Following the reported tax-withholding dispositions, Karole Morgan-Prager holds 164,881 BlackLine common shares directly. This post-transaction balance shows she retains a substantial equity position in the company after satisfying tax obligations tied to RSU vesting.

What does transaction code F mean in the BlackLine (BL) Form 4?

Transaction code F indicates shares were disposed of to pay exercise price or tax liability. In this BlackLine filing, all F-code entries reflect shares withheld to cover the reporting person’s tax obligations upon vesting of restricted stock units, not voluntary market sales.

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Accepted by SEC EDGAR 05/21/2026 - 04:24 PM EDT

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Morgan-Prager Karole

(Last)

(First)

(Middle)

21300 VICTORY BLVD., 12TH FLOOR

(Street)

WOODLAND HILLS

CALIFORNIA

91367

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BLACKLINE, INC. [ BL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Legal and Administrative

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/20/2026		F		778⁽¹⁾	D	$30.84	164,881	D
Common Stock	05/20/2026		F		884⁽¹⁾	D	$30.84	163,997	D
Common Stock	05/20/2026		F		1,063⁽¹⁾	D	$30.84	162,934	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The reported shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units.

	/s/ Karole Morgan-Prager	05/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR