Company: XOMAP
Filing Date: 2025-07-24
Form Type: SC TO-T/A
Source: 0001193125-25-163557
Chunk: 1

Company: XOMA Royalty Corp
Filing Date: 2025-07-24
Form: SC TO-T/A
Chunk 1
---
aser”). This Schedule TO relates to the offer (the “ Offer”) to purchase all of the outstanding shares of common stock, par value $0.001 per share (“ Shares”), of Turnstone Biologics Corp., a Delaware corporation (“ Turnstone”), for a price per Share of (i) $0.34 (the “ Cash Amount”), payable subject to any applicable tax withholding and without interest, and (ii) one non-transferablecontractual contingent value right (“ CVR”) for each Share, which shall represent the right to receive potential payments, in cash, described in, and subject to and in accordance with the terms and conditions of, the CVR Agreement (as described below), subject to any applicable tax withholding and without interest (such amount, the “ CVR Amount,” and together with the Cash Amount, the “ Offer Price”), all upon the terms and subject to the conditions described in the Amended and Restated Offer to Purchase, dated July 23, 2025 (together with any amendments or supplements thereto, the “ Offer to Purchase”) and in the related Letter of Transmittal, copies of which are attached hereto as exhibits (a)(1)(A) and (a)(1)(B), respectively. The Offer is being made pursuant to the Agreement and Plan of Merger, dated as of June 26, 2025 (together with any amendments or supplements thereto, the “ Merger Agreement”), among Turnstone, Purchaser and XRA 3 Corp., a Delaware corporation and a wholly owned subsidiary of Purchaser (“Merger Sub”), a copy of which is filed as Exhibit (d)(1) hereto and incorporated herein by reference with respect to Items 4 through 11 of this Schedule TO. All of the information set forth in the Offer to Purchase is incorporated by reference herein in response to Items 1 through 9 and Item 11 of this Schedule TO, and is supplemented by the information specifically provided in this Schedule TO. Except as otherwise set forth in this Amendment No. 1, all terms of the Offer and all other disclosures set forth in the Schedule TO and the exhibits thereto remain unchanged and are hereby expressly incorporated into this Amendment No. 1 by reference. This Amendment No. 1 should be read together with the Schedule TO. Capitalized terms used and not otherwise defined in this Amendment No. 1 shall have the meanings assigned to such terms in the Schedule TO and the Offer to Purchase.

| ITEM 1. | SUMMARY TERM