EX-23.1 5 cldx-20231231xex23d1.htm EX-23.1

Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

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We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-272804, 333-257137, 333-239463, 333-232253, 333-232255, 333-219867, 333-219869, 333-205694, 333-189336, 333-182142, 333-151728 and 333-117602) and on Form S-3 (Nos. 333-275300, and 333-215747) of Celldex Therapeutics, Inc. of our report dated February 26, 2024 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

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/s/ PricewaterhouseCoopers LLP | ​
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Boston, Massachusetts | ​
February 26, 2024 | ​

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