BlackLine awards 46,510 RSUs to legal chief

Morgan-Prager Karole reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Morgan-Prager Karole reported acquisition or exercise transactions in this Form 4 filing.

BLACKLINE, INC. reported that Chief Legal and Administrative officer Karole Morgan-Prager received a grant of 46,510 shares of common stock in the form of Restricted Stock Units (RSUs) at no cost per share. Following this award, she directly holds 165,659 shares.

According to the award terms, 25% of the RSUs will vest on the one-year anniversary of February 20, 2026, and 1/16 of the RSUs will vest every three months thereafter on the same calendar day, subject to her continued service through each vesting date. This is a compensation-related equity grant rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 46,510 shares

Grant/Award 1 txn

Insider Morgan-Prager Karole

Role Chief Legal and Administrative

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	46,510	$0.00	$0.00

Holdings After Transaction: Common Stock — 165,659 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

RSUs granted: 46,510 shares Grant price: $0.00 per share Total shares after grant: 165,659 shares +2 more

5 metrics

RSUs granted 46,510 shares Restricted Stock Unit award to Chief Legal and Administrative officer

Grant price $0.00 per share RSU award price in Form 4

Total shares after grant 165,659 shares Direct holdings following RSU grant

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

Subsequent vesting schedule 1/16 of RSUs every three months Quarterly vesting after initial one-year vest date

Key Terms

Restricted Stock Unit ("RSU"), vest, vesting date

3 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 of February 20, 2026"

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"

FAQ

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

BLACKLINE disclosed that Chief Legal and Administrative officer Karole Morgan-Prager received a grant of 46,510 Restricted Stock Units. Each RSU represents one share of common stock, awarded at no cost as part of her equity compensation package, increasing her direct holdings to 165,659 shares.

How many BLACKLINE (BL) shares does Karole Morgan-Prager hold after this Form 4?

After the RSU grant, Karole Morgan-Prager directly holds 165,659 shares of BLACKLINE common stock. This total includes the 46,510 newly granted RSU-based shares, reflecting her updated equity position as reported in the Form 4 insider filing.

What are the vesting terms of the 46,510 RSUs granted by BLACKLINE (BL)?

The 46,510 RSUs vest over time. Twenty-five percent will vest on the one-year anniversary of February 20, 2026, and 1/16 of the RSUs will then vest every three months on the same day, contingent on her continued service with the company.

Was the BLACKLINE (BL) RSU grant to Karole Morgan-Prager an open-market stock purchase?

No, the transaction was a grant of Restricted Stock Units, not an open-market stock purchase. The RSUs were awarded at a price of $0.00 per share as equity compensation, classified in the filing as a grant, award, or other acquisition.

What does a transaction code "A" mean in the BLACKLINE (BL) Form 4 filing?

In this Form 4, transaction code "A" indicates a grant, award, or other acquisition of securities. For Karole Morgan-Prager, it reflects the issuance of 46,510 Restricted Stock Units as compensation, rather than a traditional buy or sell transaction in the open market.

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Accepted by SEC EDGAR 04/03/2026 - 04:17 PM 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)
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		46,510(1)	A	$0	165,659	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	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)