argenx ((Euronext &, NASDAQ:ARGX), a global immunology innovation company today announced that Avena Merger Sub Inc. ("Purchaser"), a wholly-owned subsidiary of argenx BV ("argenx"), has commenced a tender offer to purchase all of the issued and outstanding shares of Common Stock, par value $0.001 per share (the "Shares"), of Forte Biosciences, Inc. ("Forte") (NASDAQ:FBRX), for $77.00 per Share, net to the seller in cash, without interest, subject to any applicable withholding taxes, and upon the terms and subject to the conditions set forth in the Offer to Purchase, dated August 6, 2026, and the accompanying Letter of Transmittal (together, and with other related materials, as they may be amended or supplemented from time to time, the "Offer").

The Offer is being made pursuant to an Agreement and Plan of Merger, dated as of July 26, 2026, by and among Forte, argenx and Purchaser (the "Merger Agreement"). As soon as practicable following the acceptance of the Shares for payment (but in any event no later than the first business day following the expiration of the Offer) and subject to the satisfaction or waiver of certain conditions, Purchaser will merge with and into Forte (the "Merger") and the separate existence of Purchaser will cease and Forte will continue as the surviving corporation and as a wholly-owned subsidiary of argenx. By virtue of the Merger, each Share outstanding immediately prior to the effective time of the Merger (subject to certain exceptions set forth in the Merger Agreement) will be converted into the right to receive $77.00 per Share, net to the seller in cash, without interest, subject to any applicable withholding taxes. The Merger will be governed by Section 251(h) of the General Corporation Law of the State of Delaware, as amended (the "DGCL"), which does not require a vote of Forte’s stockholders.