This Amendment No. 1 (this “Amendment”) amends and supplements the Solicitation/Recommendation Statement on Schedule 14D-9 (as amended or supplemented from time to time, this “Schedule 14D-9”) filed by Checkmate Pharmaceuticals, Inc., a Delaware corporation (“Checkmate”), with the Securities and Exchange Commission (the “SEC”) on May 2, 2022, relating to the tender offer by Scandinavian Acquisition Sub, Inc., a Delaware corporation (“Purchaser”) and a wholly owned subsidiary of Regeneron Pharmaceuticals, Inc., a New York corporation (“Regeneron”), to purchase all of the issued and outstanding shares of common stock, par value $0.0001 per share (the “Shares”), of Checkmate for a purchase price of $10.50 per Share in cash, to be paid to the seller without interest thereon and subject to reduction for any withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase, filed by Regeneron and Purchaser with the SEC on May 2, 2022 (as amended or supplemented from time to time, the “Offer to Purchase”), and in the related Letter of Transmittal, filed by Regeneron and Purchaser with the SEC on May 2, 2022 (as amended or supplemented from time to time, the “Letter of Transmittal,” which, together with the Offer to Purchase, constitute the “Offer”).
Except to the extent specifically provided in this Amendment, the information set forth in this Schedule 14D-9 remains unchanged. Capitalized terms used, but not otherwise defined, in this Amendment shall have the meanings ascribed to them in this Schedule 14D-9. This Amendment is being filed to reflect certain updates as reflected below.
Item 8. Additional Information
Item 8 of this Schedule 14D-9 is hereby amended and supplemented as follows:
The following paragraph replaces in its entirety the paragraph under the heading “—Legal Proceedings” on page 47 of this Schedule 14D-9:
“On May 5, 2022, a complaint was filed in the United States District Court for the Eastern District of New York captioned Hopkins v. Checkmate Pharmaceuticals, Inc., et al., 1:22-cv-02582 (E.D.N.Y.) (“Merger Action”). The Merger Action alleges that the Schedule 14D-9 misrepresents and/or omits certain purportedly material information relating to the analyses performed by Checkmate’s financial advisor in connection with the Merger. The Merger Action asserts violations of Sections 14(d) and 14(e) of the Securities Exchange Act of 1934, and Rule 14d-9 promulgated thereunder, against all defendants (Checkmate and the Checkmate Board), and violations of Section 20(a) of the Exchange Act against Checkmate’s directors. The Merger Action seeks, among other things, an injunction enjoining the consummation of the Merger, costs of the action, including plaintiffs’ attorneys’ fees and experts’ fees, and other relief the court may deem just and proper. Checkmate has also received a demand letter from a purported Checkmate shareholder (the “Demand”) requesting that Checkmate provide additional disclosures in connection with the Merger. The defendants believe the claims asserted in the Merger Action and the Demand are without merit. Additional lawsuits may be filed against Checkmate, the Checkmate Board, Regeneron and/or Purchaser, and additional demand letters may be received, in connection with the Transactions, the Schedule TO and the Schedule 14D-9. If additional similar complaints are filed or additional similar demand letters are received, absent new or significantly different allegations, Checkmate will not necessarily disclose such additional filings or letters.”
The following paragraphs replace in their entirety the paragraphs under the heading “—Regulatory Approvals” on page 47 of this Schedule 14D-9:
“Under the HSR Act and the rules and regulations promulgated thereunder, certain acquisition transactions may not be consummated unless certain information has been furnished to the Antitrust Division and the FTC in a Notification and Report Form provided by the acquiring and acquired persons, and certain waiting period requirements have been satisfied. The purchase of Shares pursuant to the Offer is subject to such requirements. The Antitrust Division and the FTC assess the legality under the antitrust laws of transactions such as the acquisition of Shares by Purchaser pursuant to the Offer.
Each of Regeneron and Checkmate filed Notification and Report Forms under the HSR Act with the FTC and the Antitrust Division in connection with the purchase of Shares in the Offer on April 25, 2022. The waiting period