BlackLine (BL) director Megan Prichard files initial insider ownership Form 3

Rhea-AI Filing Summary

BLACKLINE, INC. director Megan Prichard has filed an initial statement of beneficial ownership of securities on Form 3. This filing establishes her status as a reporting insider of the company. The document is administrative in nature and does not report any specific insider transactions or changes in holdings.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Prichard Megan

(Last) (First) (Middle)

21300 VICTORY BLVD., 12TH FLOOR

(Street)

WOODLAND HILLS CALIFORNIA 91367-7734

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/24/2026

3. Issuer Name and Ticker or Trading Symbol
BLACKLINE, INC. [ BL ]

3a. Foreign Trading Symbol

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

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

This Form 3 reports Ms. Prichard's appointment to the Issuer's board of directors on March 11, 2026. The filing was delayed due to a procedural delay in Ms. Prichard receiving the requisite EDGAR access codes from the SEC. This Form 3 was filed promptly upon receipt of the codes.

No securities are beneficially owned.

	/s/ Karole Morgan-Prager, Attorney-in-Fact	03/26/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the Form 3 filing by BLACKLINE, INC. (BL) director Megan Prichard mean?

The Form 3 filing shows that Megan Prichard is now an insider of BLACKLINE, INC. As a director, she must publicly report her beneficial ownership and, going forward, disclose most transactions in the company’s securities through additional SEC forms.

Does the BLACKLINE, INC. (BL) Form 3 for Megan Prichard show any stock transactions?

No transactions are reported in this Form 3 for Megan Prichard. The filing functions as an initial registration of insider status, laying the groundwork for future reporting of purchases, sales, or other changes in her BLACKLINE, INC. holdings.

Why is a Form 3 important for BLACKLINE, INC. (BL) shareholders?

Form 3 marks when an individual becomes a reporting insider at BLACKLINE, INC. It triggers ongoing disclosure duties, helping shareholders track future insider transactions and providing greater transparency into how key company insiders hold and change positions in the stock.

Who is identified as a reporting person in the BLACKLINE, INC. (BL) Form 3?

The Form 3 identifies Megan Prichard as a reporting person for BLACKLINE, INC. She is listed in the filing as a director, which subjects her to SEC insider reporting requirements on her beneficial ownership of the company’s securities.

Does the BLACKLINE, INC. (BL) Form 3 indicate any special ownership arrangements for Megan Prichard?

The available Form 3 data for Megan Prichard does not describe any special ownership structures or detailed footnote explanations. It simply records her status as a director and establishes her obligation to report future changes in beneficial ownership.