BlackLine director granted 6,416 RSUs

Yamamoto Mika reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Yamamoto Mika reported acquisition or exercise transactions in this Form 4 filing.

BLACKLINE, INC. reported that director Mika Yamamoto received an automatic annual equity award of 6,416 restricted stock units (RSUs) of common stock on May 7, 2026 under its Outside Director Compensation Policy. These RSUs vest in full on the earlier of one year after the award date or the day before the next annual stockholder meeting, contingent on continued board service. Following this grant, Yamamoto holds 19,692 shares of common stock directly.

Insider Trade Summary

Grant/Award: 6,416 shares

Grant/Award 1 txn

Insider Yamamoto Mika

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	6,416	$0.00	$0.00

Holdings After Transaction: Common Stock — 19,692 shares (Direct)

Footnotes (2)

1. F1. Reflects an automatic annual restricted stock unit ("RSU") award pursuant to the Issuer's Outside Director Compensation Policy.
2. F2. The reported securities awarded on May 7, 2026 (the "Award Date") represent RSUs which vest in full upon the earlier of the one (1) year anniversary of the Award Date or the day prior to the Issuer's next annual meeting of the stockholders and in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.

Key Figures

RSUs granted: 6,416 units Grant price per share: $0.00 per share Shares held after grant: 19,692 shares +1 more

4 metrics

RSUs granted 6,416 units Automatic annual RSU award on May 7, 2026

Grant price per share $0.00 per share Equity compensation, not a cash purchase

Shares held after grant 19,692 shares Total BlackLine common stock directly owned post-transaction

Vesting schedule Earlier of 1 year or pre-next annual meeting Subject to continued board service for RSU vesting

Key Terms

restricted stock unit ("RSU"), Outside Director Compensation Policy, vest in full, annual meeting of the stockholders

4 terms

restricted stock unit ("RSU") financial

"Reflects an automatic annual restricted stock unit ("RSU") award pursuant to the Issuer's..."

Outside Director Compensation Policy financial

"automatic annual RSU award pursuant to the Issuer's Outside Director Compensation Policy."

vest in full financial

"represent RSUs which vest in full upon the earlier of the one (1) year anniversary..."

annual meeting of the stockholders financial

"the earlier of the one (1) year anniversary... or the day prior to the Issuer's next annual meeting of the stockholders"

FAQ

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

What insider transaction did BlackLine (BL) disclose for Mika Yamamoto?

BlackLine disclosed that director Mika Yamamoto received an automatic annual equity grant of 6,416 restricted stock units of common stock. The award was made under the company’s Outside Director Compensation Policy as part of her board compensation, not as an open-market share purchase.

How many restricted stock units were granted to BlackLine director Mika Yamamoto?

Mika Yamamoto was granted 6,416 restricted stock units representing BlackLine common stock. This equity award is compensation for her service on the board of directors and was reported at a price of $0.00 per unit, consistent with a non-cash share-based compensation grant.

What are the vesting terms of Mika Yamamoto’s new RSU award at BlackLine (BL)?

The 6,416 RSUs granted to Mika Yamamoto vest in full on the earlier of the one-year anniversary of the May 7, 2026 award date or the day before BlackLine’s next annual stockholder meeting, provided she continues serving on the company’s board through the applicable vesting date.

How many BlackLine shares does Mika Yamamoto hold after this Form 4 transaction?

After this RSU grant, Mika Yamamoto beneficially owns 19,692 shares of BlackLine common stock directly. This total reflects her updated holdings reported in the Form 4 following the 6,416-unit restricted stock award made under the Outside Director Compensation Policy.

Was cash involved in Mika Yamamoto’s BlackLine RSU grant reported on Form 4?

No cash changed hands in this transaction; the 6,416 restricted stock units were granted at a reported price of $0.00 per share. This reflects a standard equity compensation award to a non-employee director, rather than an open-market purchase or sale of BlackLine shares.

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

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Accepted by SEC EDGAR 05/08/2026 - 04:20 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^*

Yamamoto Mika

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/07/2026

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	05/07/2026		A(1)		6,416(2)	A	$0	19,692	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. Reflects an automatic annual restricted stock unit ("RSU") award pursuant to the Issuer's Outside Director Compensation Policy.

2. The reported securities awarded on May 7, 2026 (the "Award Date") represent RSUs which vest in full upon the earlier of the one (1) year anniversary of the Award Date or the day prior to the Issuer's next annual meeting of the stockholders and in each case subject to the Reporting Person's continued service on the Issuer's board of directors through each vesting date.

	/s/ Karole Morgan-Prager, Attorney-in-Fact	05/08/2026
	** 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)