BlackLine CAO has 871 shares withheld for taxes

Q: What insider transaction did BLACKLINE, INC. (BL) disclose for Michelle D. Stalick?

BLACKLINE, INC. disclosed that Chief Accounting Officer Michelle D. Stalick had 871 shares of common stock withheld on 2026-08-20 to cover her tax liability arising from the vesting of restricted stock units, according to the Form 4 footnote.

Q: How many BLACKLINE (BL) shares were withheld for Michelle D. Stalick’s taxes and at what price?

In total, 871 shares of BLACKLINE common stock were withheld across four entries (143, 161, 265, and 302 shares) at a price of $31.92 per share, as reported in the Form 4 transaction details.

Q: What does transaction code F mean in the BLACKLINE (BL) Form 4 filing?

Transaction code F in this Form 4 is described as payment of tax liability by delivering or withholding securities. The filing explains that the shares were withheld to satisfy Michelle D. Stalick’s tax obligations related to vesting restricted stock units.

Q: Is the Form 4 transaction for BLACKLINE (BL) under a Rule 10b5-1 trading plan?

No. The filing’s aff_10b5_one indicator is false, meaning the checkbox for Rule 10b5-1 trading plan status was not marked as an affirming plan-based transaction in this Form 4.

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Filing Sentiment

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Form Type

Rhea-AI Filing Summary

BLACKLINE, INC. (BL) reported that Chief Accounting Officer Michelle D. Stalick had a total of 871 shares of common stock withheld on 2026-08-20 at $31.92 per share. The Form 4 states these shares were withheld to cover her tax liability in connection with the vesting of restricted stock units, rather than sold in open-market transactions.

Insider Trade Summary

Tax Withholding: 871 shares

Tax Withholding 4 txns

Insider Stalick Michelle D

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock ^F1	143	$31.92	$5K
Tax Withholding	Common Stock ^F1	161	$31.92	$5K
Tax Withholding	Common Stock ^F1	265	$31.92	$8K
Tax Withholding	Common Stock ^F1	302	$31.92	$10K

Holdings After Transaction: Common Stock — 35,492 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

Shares withheld (entry 1): 143 shares Shares withheld (entry 2): 161 shares Shares withheld (entry 3): 265 shares +3 more

6 metrics

Shares withheld (entry 1) 143 shares Common Stock withheld on 2026-08-20 for tax liability (code F)

Shares withheld (entry 2) 161 shares Common Stock withheld on 2026-08-20 for tax liability (code F)

Shares withheld (entry 3) 265 shares Common Stock withheld on 2026-08-20 for tax liability (code F)

Shares withheld (entry 4) 302 shares Common Stock withheld on 2026-08-20 for tax liability (code F)

Total shares withheld for taxes 871 shares Sum of all code F transactions on 2026-08-20 for tax liability

Price per share $31.92 per share Price applied to all code F withholding transactions on 2026-08-20

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 Michelle D. Stalick?

BLACKLINE, INC. disclosed that Chief Accounting Officer Michelle D. Stalick had 871 shares of common stock withheld on 2026-08-20 to cover her tax liability arising from the vesting of restricted stock units, according to the Form 4 footnote.

Was the BLACKLINE (BL) Form 4 transaction an open-market sale?

No. The Form 4 identifies code F transactions and describes them as payment of tax liability by delivering or withholding securities. A footnote states the reported shares were withheld to cover tax liability from vesting restricted stock units, not sold in the open market.

How many BLACKLINE (BL) shares were withheld for Michelle D. Stalick’s taxes and at what price?

In total, 871 shares of BLACKLINE common stock were withheld across four entries (143, 161, 265, and 302 shares) at a price of $31.92 per share, as reported in the Form 4 transaction details.

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

Transaction code F in this Form 4 is described as payment of tax liability by delivering or withholding securities. The filing explains that the shares were withheld to satisfy Michelle D. Stalick’s tax obligations related to vesting restricted stock units.

Is the Form 4 transaction for BLACKLINE (BL) under a Rule 10b5-1 trading plan?

No. The filing’s aff_10b5_one indicator is false, meaning the checkbox for Rule 10b5-1 trading plan status was not marked as an affirming plan-based transaction in this Form 4.

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

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Available on EDGAR 08/24/2026 - 04:42 PM EDT Accepted by SEC EDGAR 08/24/2026 - 04:42 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^*

Stalick Michelle D

(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 Accounting Officer

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)
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	08/20/2026		F		143⁽¹⁾	D	$31.92	36,220	D
Common Stock	08/20/2026		F		161⁽¹⁾	D	$31.92	36,059	D
Common Stock	08/20/2026		F		265⁽¹⁾	D	$31.92	35,794	D
Common Stock	08/20/2026		F		302⁽¹⁾	D	$31.92	35,492	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, 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)

Source: View Original Filing on SEC EDGAR