BlackLine (BL) awards 16,420 RSUs to Chief Accounting Officer

Rhea-AI Filing Summary

Stalick Michelle D reported acquisition or exercise transactions in this Form 4 filing.

BLACKLINE, INC. Chief Accounting Officer Michelle D. Stalick received a grant of 16,420 shares of Common Stock in the form of Restricted Stock Units (RSUs) at no cash cost. After this award, she directly holds 38,014 shares. According to the terms, 25% of the RSUs will vest on the one-year anniversary of February 20, 2026, with the remaining units vesting in equal installments every three months thereafter, subject to her continued service.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Stalick Michelle D

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	16,420	$0.00	--

Holdings After Transaction: Common Stock — 38,014 shares (Direct)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 16,420 shares Price per share: $0.00 per share Post-transaction holdings: 38,014 shares +2 more

5 metrics

RSU grant size 16,420 shares Restricted Stock Units representing Common Stock granted to CAO

Price per share $0.00 per share Recorded transaction price for RSU-based Common Stock grant

Post-transaction holdings 38,014 shares Total Common Stock directly held after the RSU award

Initial vesting portion 25% of RSUs Vests on the one-year anniversary of February 20, 2026

Ongoing vesting rate 1/16th of RSUs Vests every three months after the initial vesting date

Key Terms

Restricted Stock Unit ("RSU"), vest, vesting date, transaction code "A"

4 terms

Restricted Stock Unit ("RSU") financial

"Each share is represented by a Restricted Stock Unit ("RSU")."

vest financial

"25% of the RSUs will vest on the one (1) year anniversary..."

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

vesting date financial

"subject to the reporting person's continued service through each applicable vesting date."

transaction code "A" financial

"transaction_code_description": "Grant, award, or other acquisition""

Form 4 Insider Transactions: What Each Field Means →

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)
04/01/2026

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	04/01/2026		A		16,420(1)	A	$0	38,014	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. Each share is represented by a Restricted Stock Unit ("RSU"). 25% of the RSUs will vest on the one (1) year anniversary of February 20, 2026 (the "RSU Vesting Commencement Date"), and 1/16th of the RSUs will vest every three months thereafter on the same day of the month as the RSU Vesting Commencement Date, subject to the reporting person's continued service through each applicable vesting date.

	/s/ Karole Morgan-Prager, Attorney-in-Fact	04/03/2026
	** 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)

FAQ

What insider transaction did BLACKLINE, INC. (BL) report for Michelle Stalick?

BLACKLINE reported that Chief Accounting Officer Michelle D. Stalick received 16,420 shares of Common Stock as a Restricted Stock Unit grant. The award was recorded at a price of $0.00 per share as part of her equity compensation.

How many BLACKLINE (BL) shares does Michelle Stalick hold after this Form 4?

After the reported RSU grant, Michelle D. Stalick directly holds 38,014 shares of BLACKLINE Common Stock. This total includes the newly granted 16,420 RSU-based shares, which will vest over time subject to her continued service with the company.

What is the vesting schedule for Michelle Stalick’s 16,420 BLACKLINE RSUs?

The RSUs vest over several years: 25% of the 16,420 units vest on the one-year anniversary of February 20, 2026. The remaining RSUs vest in 1/16th increments every three months afterward, assuming she continues in service through each vesting date.

Did Michelle Stalick buy BLACKLINE (BL) shares on the open market?

No, the filing shows a grant or award acquisition of 16,420 shares as Restricted Stock Units at $0.00 per share. This is compensation, not an open-market purchase, and is reported under transaction code "A" for grants or awards.

What does transaction code "A" mean in this BLACKLINE (BL) Form 4?

Transaction code "A" indicates a grant, award, or other acquisition of stock, typically as compensation. In this case, Michelle Stalick received 16,420 RSU-based Common Stock shares, which will vest over time under the specified vesting schedule.

Are Michelle Stalick’s new BLACKLINE RSUs subject to service conditions?

Yes, vesting is conditioned on continued service. Twenty-five percent of the RSUs vest on the one-year anniversary of February 20, 2026, and 1/16th of the RSUs vests every three months thereafter, only if she remains in service on each vesting date.