Riga Thomas J Form 4 CHIMERIX / Thomas J Riga ownership change

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).

1. Name and Address of Reporting Person^*

Riga Thomas J

(Last) (First) (Middle)

C/O CHIMERIX, INC.

2505 MERIDIAN PKWY, SUITE 100

(Street)

DURHAM NC 27713

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CHIMERIX INC [ CMRX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
01/07/2025

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	01/07/2025		A		54,275(1)	A	$0	57,501(2)	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
Stock Option (Right to Buy)	$3.66	01/07/2025		A		325,000		(3)	01/06/2035	Common Stock	325,000	$0	325,000	D

Explanation of Responses:

1. The shares being reported are being issued pursuant to restricted unit awards ("RSUs"), each one of which represents a contingent right to receive one share of the Issuer's common stock. 13,568 shares subject to the RSUs will vest on the one-year anniversary of the date of grant, 13,569 shares subject to the RSUs will vest on the second-year anniversary of the date of grant, 13,569 shares subject to the RSUs will vest on the third-year anniversary of the date of grant, and 13,569 shares subject to the RSUs will vest on the fourth-year anniversary of the date of grant.

2. Includes 3,226 shares acquired under the Issuer's Employee Stock Purchase Plan on September 10, 2024.

3. One-fourth of the shares subject to the stock option vest and become exercisable on the first anniversary of the date of grant, and the remaining shares vest in 36 equal monthly installments thereafter.

	/s/ Michael Alrutz, Attorney-in-Fact	01/10/2025
	** 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 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).
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