[Form 3] VivoSim Labs, Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

VivoSim Labs, Inc. (VIVS) filed an initial Form 3 reporting that Tony Serge Lialin (address on file) is identified as an officer with the title Chief Commercial Officer. The filing, dated for the event on 08/11/2025, states explicitly that no securities are beneficially owned by the reporting person at the time of this statement. The form was submitted by a single reporting person and includes an exhibit referencing a power of attorney.

Positive

• Disclosure of officer role: The Form 3 identifies Tony Serge Lialin as Chief Commercial Officer, providing transparency on company leadership.
• Compliance with Section 16: Filing an initial Form 3 demonstrates the company and reporting person are meeting disclosure obligations.

Negative

• No beneficial ownership reported: The reporting person does not hold securities of the issuer, so there is no disclosed equity alignment with shareholders.

Insights

Corporate Governance Expert

TL;DR: New officer disclosure with no equity ownership reported, limiting immediate alignment with shareholders.

The filing documents an initial Section 16 disclosure for a named officer, indicating the company has added or recognized a senior commercial executive role in public filings. Because the report declares no beneficial ownership of issuer securities, there is currently no equity-based alignment disclosed between this officer and common shareholders. The inclusion of Exhibit 24 suggests execution authority delegated via power of attorney for filing purposes. This is a routine governance disclosure rather than a material securities transaction.

Securities Compliance Analyst

TL;DR: Filing satisfies Section 16 initial reporting requirements but records no holdings, so no Section 16 transactions are reported.

The Form 3 fulfills the initial ownership-reporting obligation by identifying the reporting person, role, and event date. The explicit statement that no securities are beneficially owned means there are no reportable non-derivative or derivative positions to list, and no subsequent Section 16 transaction timing or reporting obligations are triggered by this filing alone. The form appears procedurally complete with a signature executed by an attorney-in-fact.

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^*

Lialin Tony Serge

(Last) (First) (Middle)

11555 SORRENTO VALLEY ROAD, SUITE 100

(Street)

SAN DIEGO CA 92121

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/11/2025

3. Issuer Name and Ticker or Trading Symbol
VivoSim Labs, INC. [ VIVS ]

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

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

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

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:

Exhibit 24 - Power of Attorney

No securities are beneficially owned.

	By: /s/ Norman Staskey, attorney-in-fact	08/21/2025
	** 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.

FAQ

What did VivoSim Labs (VIVS) report on this Form 3?

The Form 3 names Tony Serge Lialin as an officer with the title Chief Commercial Officer and states no securities are beneficially owned by the reporting person as of 08/11/2025.

Does this Form 3 show any stock or option holdings for the reporting person?

No. The filing explicitly states no securities are beneficially owned and contains no entries in the non-derivative or derivative tables.

Was the Form 3 filed by more than one reporting person?

No. The form indicates it was filed by one reporting person.

Is there a power of attorney included with the filing?

Yes. The filing references Exhibit 24 - Power of Attorney and is signed by an attorney-in-fact on behalf of the reporting person.

Does this Form 3 create any immediate reporting obligations under Section 16?

No. Because no securities are reported as owned, there are no additional Section 16 transaction reports triggered by this filing alone.