[Form 4] Viking Therapeutics, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Viking Therapeutics (VKTX) COO reported Form 4 activity. On October 27, 2025, 11,117 shares were acquired at $0 upon vesting of performance RSUs tied to non-financial goals. On October 28, 2025, 6,185 shares were sold at a weighted average price of $35.0027 to cover tax withholding related to the vesting.

Following these transactions, the executive directly beneficially owned 382,467 shares. The sales were executed in multiple trades between $34.69 and $35.40.

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

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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^*

Mancini Marianna

(Last) (First) (Middle)

C/O VIKING THERAPEUTICS, INC.

9920 PACIFIC HEIGHTS BLVD, SUITE 350

(Street)

SAN DIEGO CA 92121

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Viking Therapeutics, Inc. [ VKTX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/27/2025

4. 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 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, par value $0.00001 per share	10/27/2025		A		11,117(1)	A	$0	388,652	D
Common Stock, par value $0.00001 per share	10/28/2025		S		6,185(2)	D	$35.0027(3)	382,467	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. The reported securities were subject to a performance restricted stock unit award that was granted on January 3, 2025, 33.33% of which vested on October 27, 2025 upon the achievement of a non-financial performance goal and 15% of which vested also on October 27, 2025 upon the partial achievement of a non-financial performance goal.

2. These shares were automatically sold on a non-discretionary basis solely to satisfy certain tax withholding obligations in connection with the issuance of shares upon the vesting of certain shares of common stock subject to the performance restricted stock unit award described in Footnote 1.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.69 to $35.40, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the this footnote.

	/s/ Michael Morneau as Attorney-in-Fact	10/28/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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