3D系统美股招股说明书(2026-06-05版)

3D SYSTEMS CORPORATION We are offering 16,393,443 shares of our common stock, par value $0.001 per share (“common stock”). The public offering price is $3.05 per share. Our common stock trades on the New York Stock Exchange (the “NYSE”) under the symbol “DDD.” On June3, 2026, the last reported sale price of our commonstock on the NYSE was $3.61 per share. Investing in our common stock involves risks that are described in the “Risk Factors” section beginning on pageS-8 of this prospectus supplement. (1)See “Underwriting” for a description of the compensation payable to the underwriters. We have granted the underwriters a 30-day option to purchase up to 2,459,016 additional shares of common stock from us at the public offering price, lessunderwriting discounts and commissions, and on the same terms and conditions as set forth above. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined ifthis prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense. The common stock is expected to be delivered to purchasers on or about June5, 2026. Craig-Hallum Needham&Company Table of Contents TABLE OF CONTENTS Prospectus Supplement ABOUT THIS PROSPECTUS SUPPLEMENTSUMMARYTHE OFFERINGFORWARD-LOOKING STATEMENTSRISK FACTORSCAPITALIZATIONUSE OF PROCEEDSMATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S. HOLDERSUNDERWRITINGLEGAL MATTERSEXPERTSINCORPORATION OF CERTAIN DOCUMENTS BY REFERENCEWHERE YOU CAN FIND MORE INFORMATION Base Prospectus ABOUT THIS PROSPECTUSINCORPORATION OF CERTAIN DOCUMENTS BY REFERENCEWHERE YOU CAN FIND MORE INFORMATIONCAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTSOUR COMPANYRISK FACTORSUSE OF PROCEEDSDESCRIPTION OF THE SECURITIES WE MAY OFFERDESCRIPTION OF CAPITAL STOCK DESCRIPTION OF WARRANTS PLAN OF DISTRIBUTION Table of Contents ABOUT THIS PROSPECTUS SUPPLEMENT This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of this offering and also adds to andupdates information contained in the accompanying prospectus and the documents incorporated by reference into this prospectus supplement and theaccompanying prospectus. The second part, the accompanying prospectus, including the documents incorporated by reference therein, provides moregeneral information, some of which may not apply to this offering. Generally, when we refer to this prospectus, we are referring to both parts of thisdocument combined. Any statement made in this prospectus supplement or in a document incorporated or deemed to be incorporated by reference into this prospectussupplement will be deemed to be modified or superseded for purposes of this prospectus supplement to the extent that a statement contained in thisprospectus supplement or in any other subsequently filed document that is also incorporated by reference into this prospectus supplement modifies orsupersedes that statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded, to constitute a part of thisprospectus supplement. Before buying any of the shares of common stock that we are offering, you should read both this prospectus supplement and theaccompanying prospectus together with the additional information described below under the heading “Incorporation of Certain Documents byReference.” We have filed or incorporated by reference exhibits to the registration statement of which this prospectus supplement forms a part. This prospectussupplement contains summaries of certain provisions contained in some of the exhibits to our registration statement, but reference is made to the actualdocuments for complete information. All of the summaries are qualified in their entirety by the full text of these documents. You may obtain copies ofthese documents at no cost by writing to or telephoning us at the address and telephone number given under the heading “Where You Can Find MoreInformation.” We further note that the representations, warranties and covenants made by us in any agreement that is filed as an exhibit to any document that isincorporated by reference herein were made solely for the benefit of the parties to such agreement, including, in some cases, for the purpose ofallocating risk among the parties to such agreements, and should not be deemed to be a representation, warranty or covenant to you. Moreover, suchrepresentations, warranties or covenants were accurate only as of the date when made. Accordingly, such representations, warranties and covenantsshould not be relied on as accurately representing the current state of our affairs. Neither we nor the underwriters have authorized anyone to provide you with additional or different information. We take no responsibility for, andcan provide no assurance as to the reliability of, any other information that others may g