# EDGAR Filing Document

**Accession Number:** 0000744218
**File Stem:** 0001104659-26-078023
**Filing Date:** 2026-6
**Character Count:** 12772
**Document Hash:** 6aee0e76a18be6f508fbd74b28f24ddd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-078023.hdr.sgml**: 20260626

**ACCESSION NUMBER**: 0001104659-26-078023

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20260625

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260626

**DATE AS OF CHANGE**: 20260626

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Celldex Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0000744218
- **STANDARD INDUSTRIAL CLASSIFICATION:** IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 133191702
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-15006
- **FILM NUMBER:** 261124002

**BUSINESS ADDRESS:**
- **STREET 1:** 53 FRONTAGE ROAD
- **STREET 2:** SUITE 220
- **CITY:** HAMPTON
- **STATE:** NJ
- **ZIP:** 08827
- **BUSINESS PHONE:** 908-200-7500

**MAIL ADDRESS:**
- **STREET 1:** 53 FRONTAGE ROAD
- **STREET 2:** SUITE 220
- **CITY:** HAMPTON
- **STATE:** NJ
- **ZIP:** 08827

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AVANT IMMUNOTHERAPEUTICS INC
- **DATE OF NAME CHANGE:** 19980828

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** T CELL SCIENCES INC
- **DATE OF NAME CHANGE:** 19920703

?xml version='1.0' encoding='ASCII'?

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(** **d) of the Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): **June 25, 2026**

**Celldex Therapeutics, Inc.**

(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **000-15006** | **13-3191702** |
| (State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.) |

---

**Perryville III Building, 53 Frontage Road, Suite 220, Hampton, New Jersey 08827**

(Address of principal executive offices) (Zip Code)

**(908) 200-7500**

(Registrant's telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

◻ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

◻ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

◻ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

◻ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| Common Stock, par value $.001 | CLDX | Nasdaq Capital Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ◻

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

**Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.**

On June 25, 2026, at the 2026 Annual Meeting of Stockholders (the "Annual Meeting") of Celldex Therapeutics, Inc. (the "Company"), the Company's stockholders approved an amendment (the "Plan Amendment") to the Company's 2021 Omnibus Equity Incentive Plan (the "2021 Plan") (i) increasing the number of shares available for issuance under the 2021 Plan by 3,400,000 shares and (ii) clarifying the tax withholding provisions applicable to awards under the 2021 Plan. The Plan Amendment became effective following its approval by the Company's stockholders.

The foregoing description of the Plan Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Plan Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated by reference herein.

**Item 5.07. Submission of Matters to a Vote of Security Holders.**

On June 25, 2026, at the Annual Meeting, the stockholders voted on the four proposals listed below. The proposals are described in detail in the Company's definitive proxy statement for the Annual Meeting filed with the Securities and Exchange Commission on April 29, 2026 (the "Proxy Statement"). The final results for the votes regarding each proposal are set forth below.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The stockholders elected the following individuals to serve on the Company's board of directors until the annual meeting of stockholders to be held in 2027. The tabulation of votes with respect to the election of such directors was as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Nominees** | **For** | **Against** | **Abstain** | **Broker Non-Votes** |
| Harry H. Penner, Jr. (Chair of the Board) | 59455265 | 1047261 | 181190 | 4402319 |
| Anthony S. Marucci (Chief Executive Officer) | 60218830 | 282968 | 181918 | 4402319 |
| Keith L. Brownlie | 59858683 | 644110 | 180923 | 4402319 |
| Cheryl L. Cohen | 60046578 | 456194 | 180944 | 4402319 |
| Herbert J. Conrad | 59524978 | 975608 | 183130 | 4402319 |
| Rita I. Jain, M.D. | 59495870 | 1000240 | 187606 | 4402319 |
| James J. Marino | 59910902 | 591402 | 181412 | 4402319 |
| Garry A. Neil, M.D. | 59570030 | 932772 | 180914 | 4402319 |
| Denice Torres | 60135775 | 366304 | 181637 | 4402319 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. The stockholders approved the ratification of the appointment of PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm for the year ending December 31, 2026. The tabulation of votes with respect to this proposal was as follows:

---

| | | |
|:---|:---|:---|
| **For** | **Against** | **Abstain** |
| &nbsp;&nbsp;64,712,039 | &nbsp;&nbsp;174,706 | &nbsp;&nbsp;199,290 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. The stockholders approved an amendment to our 2021 Omnibus Equity Incentive Plan, including an increase in the number of the shares reserved for issuance thereunder by 3,400,000 shares to 12,900,000 shares. The tabulation of votes with respect to this proposal was as follows:

---

| | | | |
|:---|:---|:---|:---|
| **For** | **Against** | **Abstain** | **Broker Non-Votes** |
| &nbsp;&nbsp;58,844,414 | &nbsp;&nbsp;1,654,297 | &nbsp;&nbsp;185,005 | &nbsp;&nbsp;4,402,319 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The stockholders voted to approve, on an advisory, non-binding basis, the compensation for the Company's named executive officers as disclosed in the Proxy Statement. The tabulation of votes with respect to this proposal was as follows:

---

| | | | |
|:---|:---|:---|:---|
| **For** | **Against** | **Abstain** | **Broker Non-Votes** |
| &nbsp;&nbsp;59,258,619 | &nbsp;&nbsp;945,414 | &nbsp;&nbsp;479,683 | &nbsp;&nbsp;4,402,319 |

---

**Item 9.01. Financial Statements and Exhibits.**

---

| | |
|:---|:---|
| Exhibit No. | Description |
| [10.1](tm2619009d1_ex10-1.htm) | [Amendment No. 4 to Celldex Therapeutics, Inc. 2021 Omnibus Equity Incentive Plan](tm2619009d1_ex10-1.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **CELLDEX THERAPEUTICS, INC.** | **CELLDEX THERAPEUTICS, INC.** |
| Dated: June 26, 2026 | By: | */s/ Sam Martin* |
|  | Name: | Sam Martin |
|  | Title: | Senior Vice President and Chief Financial Officer |

---

## Exhibit 10.1

**Exhibit 10.1**

**AMENDMENT No. 4 TO<br> CELLDEX THERAPEUTICS, INC.**

**2021 OMNIBUS EQUITY INCENTIVE PLAN**

**Dated: April 19, 2026**

This Agreement amends the Celldex Therapeutics, Inc. 2021 Omnibus Equity Incentive Plan (the "*Plan*"). All capitalized terms not defined herein shall have the meanings set forth in the Plan.

**R E C I T A L S**

WHEREAS, Section 17.2 of the Plan reserves to the Board of Directors ("*Board*") of Celldex Therapeutics, Inc. (the "*Company*") the right to amend the Plan from time to time; and

WHEREAS, the Board desires to amend the Plan to increase the number of shares available for awards under the plan by 3,400,000 shares in the manner hereinafter provided subject to approval by the Company's stockholders; and

WHEREAS, the Board desires to amend the Plan to increase the limitation on outside director compensation under the Plan in the manner hereinafter provided.

NOW THEREFORE, the Plan is hereby amended as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. *Amendment to Plan Share Limitation.*

Section 4.1(a) of the Plan is amended and restated in its entirety as follows:

"(a) Subject to adjustment pursuant to Section 4.3 and any other applicable provisions hereof, the maximum aggregate number of shares of Common Stock which may be issued under all Awards granted to Participants under the Plan shall be (i) 12,900,000 shares plus (ii) such number of unused shares of Common Stock reserved under the Prior Plan as of the Effective Date, which unused reserve shall be rolled into this Plan (subsections (i) and (ii) together, the "*Share Reserve*"); all of which shares may, but need not, be issued in respect of Incentive Stock Options. In addition, there shall be rolled into this Plan and added to the Share Reserve (but not issued in respect of Incentive Stock Options) such number of shares of Common Stock subject to outstanding grants or awards under the Prior Plan as of the Effective Date which are thereafter forfeited, cancelled or otherwise lapse in accordance with the provisions of Section 4.1(b)."

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. *Amendment to Tax Withholding Provision.*

Section 16.5 of the Plan is amended and restated in its entirety as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;16.5 <u>Tax Withholding</u>. The Company may require, as a condition to the grant, vesting, settlement, or delivery of any Award, the satisfaction of applicable federal, state, local, and foreign tax withholding obligations. To satisfy such obligations, the Committee is authorized, in its discretion and subject to applicable law, to (i) require cash payments by the Participant, (ii) withhold from any amounts otherwise payable in cash to the Participant, (iii) withhold a number of whole shares otherwise issuable with respect to the Award having an aggregate fair market value equal to the amount of such obligations, (iv) accept delivery by the Participant to the Company of shares having an aggregate fair market value equal to the amount of such obligations, and/or (v) facilitate a sale of shares issued upon settlement to generate proceeds sufficient to satisfy such obligations. Notwithstanding the foregoing, the number of shares withheld pursuant to clause (iii) shall not exceed such number as is necessary to satisfy the maximum statutory tax rates (or such lower rate as may be necessary to avoid adverse accounting treatment) in the Participant's applicable jurisdictions. Shares withheld or delivered to the Company pursuant to this section shall not again be available for issuance under the Plan. For purposes of withholding, fair market value shall be determined pursuant to the Company's consistently applied valuation method for tax withholding.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*3. No Other Changes.* Except as set forth herein, the Plan shall remain in full force and effect without modification.

IN WITNESS WHEREOF, the undersigned, a duly authorized officer of the Company, has executed this Amendment as of the date first above written as evidence of its adoption by the Company.

---

| |
|:---|
| **CELLDEX THERAPEUTICS, INC.** |
| By: /s/ Sam Martin |
| Name: Sam Martin |
| Title: Senior Vice President and Chief Financial Officer |

---