BlackLine officer has 2,725 shares withheld for taxes

Rhea-AI Filing Summary

BLACKLINE, INC. (BL) reported that officer Morgan-Prager Karole, its Chief Legal and Administrative officer, had shares withheld on August 20, 2026 to satisfy taxes on vested restricted stock units. A total of 2,725 shares of common stock were withheld at $31.92 per share, characterized as a tax-withholding disposition rather than an open-market sale.

Insider Trade Summary

Tax Withholding: 2,725 shares

Tax Withholding 3 txns

Insider Morgan-Prager Karole

Role Chief Legal and Administrative

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	778	$31.92	$25K
Tax Withholding	Common Stock F1	884	$31.92	$28K
Tax Withholding	Common Stock F1	1,063	$31.92	$34K

Holdings After Transaction: Common Stock — 160,209 shares (Direct)

Footnotes (1)

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

Shares withheld (entry 1): 778 shares Shares withheld (entry 2): 884 shares Shares withheld (entry 3): 1,063 shares +3 more

6 metrics

Shares withheld (entry 1) 778 shares Code F tax-withholding disposition on August 20, 2026

Shares withheld (entry 2) 884 shares Code F tax-withholding disposition on August 20, 2026

Shares withheld (entry 3) 1,063 shares Code F tax-withholding disposition on August 20, 2026

Total shares withheld for tax liability 2,725 shares ExercisePriceOrTaxLiabilityShares across three Code F transactions

Price per share $31.92 per share Applied to each Code F withholding on August 20, 2026

Code F transaction count 3 transactions Non-derivative tax-withholding dispositions reported in this Form 4

Key Terms

restricted stock units, tax liability, withheld to cover

3 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"

withheld to cover financial

"The reported shares were withheld to cover the Reporting Person's tax"

FAQ

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

What insider transaction did BLACKLINE, INC. (BL) disclose for Morgan-Prager Karole?

BLACKLINE, INC. disclosed that officer Morgan-Prager Karole had 2,725 shares of common stock withheld on August 20, 2026 to cover her tax liability arising from the vesting of restricted stock units, reported as a Code F tax-withholding disposition.

At what price were the BL shares withheld in the August 20, 2026 transaction?

The shares of BLACKLINE, INC. (BL) common stock were withheld at a price of $31.92 per share. This price applies to the 2,725 shares delivered or withheld to satisfy the reporting person’s tax liability on vested restricted stock units.

Was the August 20, 2026 BL Form 4 transaction an open-market sale?

No. The BLACKLINE, INC. (BL) Form 4 states the 2,725 shares were withheld to cover tax liability related to vesting restricted stock units, reported under transaction code F. It was not reported as a market purchase or sale.

How many separate tax-withholding entries were reported in this BL Form 4?

The BLACKLINE, INC. (BL) Form 4 shows three non-derivative transactions, each coded F. They cover 778 shares, 884 shares, and 1,063 shares, respectively, all at $31.92 per share, totaling 2,725 shares withheld for tax purposes.

Was the BLACKLINE, INC. (BL) transaction under a Rule 10b5-1 trading plan?

The document-level checkbox for Rule 10b5-1 plans is marked false for this BLACKLINE, INC. (BL) Form 4, and the footnote describes only tax withholding for RSU vesting, not a pre-arranged trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/24/2026 - 04:38 PM EDT Accepted by SEC EDGAR 08/24/2026 - 04:37 PM EDT Learn about SEC filing dates

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)
08/20/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/20/2026		F		778(1)	D	$31.92	162,156	D
Common Stock	08/20/2026		F		884(1)	D	$31.92	161,272	D
Common Stock	08/20/2026		F		1,063(1)	D	$31.92	160,209	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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, Attorney-in-Fact	08/24/2026
	** 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)