BlackLine (BL) CTO updates holdings after PRSU vesting and tax share withholding

Rhea-AI Filing Summary

BLACKLINE, INC. Chief Technology Officer Jeremy Ung reported equity award activity involving performance-based restricted stock units and related tax withholding. On February 20, 2026, portions of PRSUs granted in May 2024 and April 2025 vested based on the company’s achievement of fiscal 2024 and 2025 performance targets set by the compensation committee.

The vesting delivered common shares to Ung, and 10,404 shares of common stock were withheld at $36.15 per share to satisfy tax obligations tied to the PRSU and restricted stock unit vesting. After these transactions, Ung held 88,722 shares of BlackLine common stock directly.

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

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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^*

Ung Jeremy

(Last) (First) (Middle)

21300 VICTORY BLVD. 12TH FLOOR

(Street)

WOODLAND HILLS CA 91367

(City) (State) (Zip)

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 Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

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

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

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

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	02/20/2026		M		8,305(1)	A	$36.15	93,888	D
Common Stock	02/20/2026		M		5,238(2)	A	$36.15	99,126	D
Common Stock	02/20/2026		F		10,404(3)	D	$36.15	88,722	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 relate to the portion of a Performance Based Restricted Stock Unit ("PRSU") granted on May 8, 2024 that has vested based on the Issuer's achievement of certain fiscal 2024 performance targets that were set by the Compensation Committee at the time of grant.

2. The reported shares relate to the portion of a PRSU granted on April 2, 2025 that has vested based on the Issuer's achievement of certain fiscal 2025 performance targets that were set by the Compensation Committee at the time of grant.

3. The reported shares were withheld to cover the reporting person's tax liability in connection with the vesting of PRSUs and restricted stock units.

	/s/ Karole Morgan-Prager, Attorney-in-Fact	02/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did BlackLine (BL) CTO Jeremy Ung report?

Jeremy Ung reported equity award-related transactions from vested performance-based restricted stock units. Shares were delivered upon vesting of PRSUs granted in May 2024 and April 2025, with a portion of the common shares withheld to cover associated tax liabilities on the vesting.

How many BlackLine (BL) shares were withheld for taxes in this Form 4?

A total of 10,404 BlackLine common shares were withheld to cover Jeremy Ung’s tax liabilities. The withholding occurred in connection with the vesting of performance-based restricted stock units and restricted stock units, using a price of $36.15 per share for the tax-related disposition.

What performance conditions triggered the PRSU vesting for BlackLine (BL) CTO?

The PRSUs vested based on BlackLine’s achievement of fiscal 2024 and 2025 performance targets. These targets were established by the company’s compensation committee at the time of the grants in May 2024 and April 2025, leading to the reported vesting and share delivery.

How many BlackLine (BL) shares does Jeremy Ung hold after these transactions?

After the reported vesting and tax withholding transactions, Jeremy Ung directly holds 88,722 shares of BlackLine common stock. This figure reflects his updated direct ownership following the performance-based restricted stock unit vesting and the related share withholding for tax obligations.

Were the BlackLine (BL) Form 4 transactions open-market buys or sells?

The transactions were not open-market buys or sells. They reflect vesting of performance-based restricted stock units and a related tax-withholding disposition, where shares were delivered from awards and 10,404 shares were withheld at $36.15 per share to satisfy tax liabilities.