EX-23.1 4 cldx-20221231xex23d1.htm EXHIBIT 23.1

Exhibit 23.1

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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 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. 333-249917, 333-239199, 333-235399 and 333-215747) of Celldex Therapeutics, Inc. of our report dated February 28, 2023 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 28, 2023 | ​

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