SEC FORM 4

SEC FORM 4 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^*

Heath-Chiozzi Margo

(Last)

(First)

(Middle)

C/O CELLDEX THERAPEUTICS, INC.

53 FRONTAGE ROAD, SUITE 220

(Street)

HAMPTON

08827

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Celldex Therapeutics, Inc. [ CLDX ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP OF REGULATORY AFFAIRS

3. Date of Earliest Transaction (Month/Day/Year)
05/30/2024

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/30/2024		M		29,068	A	$2.78	41,162⁽¹⁾	D
Common Stock	05/30/2024		M		2,043	A	$9.0165	43,205	D
Common Stock	05/30/2024		M		2,608	A	$10.38	45,813	D
Common Stock	05/30/2024		S⁽²⁾		38,719⁽²⁾	D	$34.07⁽²⁾	7,094	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Incentive Stock Option (Right to Buy)	$2.78	05/30/2024		M			29,068	⁽³⁾	06/19/2029	Common Stock	29,068	$0	12,732	D
Incentive Stock Option (Right to Buy)	$9.0165	05/30/2024		M			2,043	⁽⁴⁾	06/13/2028	Common Stock	2,043	$0	6,289	D
Incentive Stock Option (Right to Buy)	$10.38	05/30/2024		M			2,608	⁽⁵⁾	06/18/2030	Common Stock	2,608	$0	81,392	D

Explanation of Responses:

1. Includes 847 shares of common stock acquired under the Celldex Therapeutics, Inc. 2004 Employee Stock Purchase Plan.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.850 to $34.445 per share, inclusive. The reporting person undertakes to provide to Celldex Therapeutics, Inc., any security holder of Celldex Therapeutics, Inc., 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 herein.

3. As of June 19, 2023, the option is fully vested.

4. As of June 13, 2022, the option is fully vested.

5. 25% vested on June 18, 2021 and the remainder vest quarterly (in equal amounts) over the subsequent 12 quarters.

	/s/ Sam Martin, attorney-in-fact for Margo Heath-Chiozzi	06/03/2024
	** 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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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.

Heath-Chiozzi Margo exercised 33,719 shares at a strike of $3.75 and sold $1,319,156 worth of shares (38,719 units at $34.07), decreasing direct ownership by 41% to 7,094 units (SEC Form 4)