This Amendment No. 1 (“Amendment No. 1”) to the Tender Offer
Statement on Schedule TO (together with the exhibits thereto, the “Schedule TO”) amends and supplements the statement originally filed on March 25, 2021 by Roche Holdings, Inc., a Delaware corporation
(“Parent”), and Geronimo Acquisition Corp., a Delaware corporation and wholly owned subsidiary of Parent (“Purchaser”). This Amendment No. 1 and the Schedule TO relate to the offer by Purchaser to purchase all
outstanding shares of common stock, par value $0.0001 per share (the “Shares”), of GenMark Diagnostics, Inc., a Delaware corporation (“GenMark”), at a purchase price of $24.05 per Share, net to the seller in cash,
without interest and subject to deduction for any required withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase, dated March 25, 2021 (as amended or supplemented from time to time, the
“Offer to Purchase”), and in the related Letter of Transmittal (the “Letter of Transmittal,” which, together with any amendments or supplements thereto from time to time, constitutes the “Offer”).
The initial expiration date of the Offer is at 12:00 midnight, Eastern Time, at the end of the day on Wednesday, April 21, 2021, unless the offer is extended or earlier terminated as permitted by the Merger Agreement and applicable law.
Capitalized terms used, but not otherwise defined, in this Amendment No. 1 shall have the meanings ascribed to them in the Offer to Purchase. Except as
set forth below, the information set forth in the Schedule TO remains unchanged and is incorporated herein by reference as relevant to the items in this Amendment No. 1.
Items 1 through 9, and Item 11.
Items 1 through 9
and 11 of the Schedule TO are hereby amended and supplemented as follows:
The section under the heading “16. Certain Legal Matters; Regulatory
Approvals” is hereby amended and supplemented by inserting after the last paragraph of such section the following new subsection:
“Litigation Related to the Merger
On March 29,
2021, Plaintiff Ernest Mancini (“Plaintiff Mancini”) filed a lawsuit captioned Ernest Mancini v. GenMark Diagnostics, Inc., et al., No. 1:21-cv-466,
against GenMark, its directors Kevin C. O’Boyle, Daryl J. Faulkner, James Fox, Lisa Giles and Michael Kagnoff (collectively, the “Individual Defendants”), Parent and Purchaser (with Parent, Purchaser, GenMark and the Individual
Defendants, collectively the “Defendants”) in the United States District Court for the District of Delaware. On April 6, 2021, Plaintiff Alex Ciccotelli (“Plaintiff Ciccotelli”) filed a lawsuit captioned Alex
Ciccotelli v. GenMark Diagnostics, Inc., et al., No. 2:21-cv-01626, against Defendants in the United States District Court for the Eastern District of Pennsylvania. In these complaints, Plaintiffs Mancini and Ciccotelli allege that the Defendants
violated Sections 14(d)(4) and 14(e) of the Exchange Act and the SEC Rule 14a-9, and that the Individual Defendants, Parent, and Purchaser violated Section 20(a) of the Exchange Act, based upon alleged
material misstatements or omissions in the Recommendation Statement relating to (a) the GenMark financial projections made in connection with Parent and Purchaser’s proposed acquisition of GenMark (the “Proposed
Transaction”), (b) the financial analysis of J.P. Morgan, (c) the existence of nondisclosure agreements with certain provisions, and/or (d) the existence of or purported potential conflicts of interest concerning the Proposed
Transaction. The complaints include demands for, among other things, an injunction preventing the Defendants from closing the Proposed Transaction, or rescinding or setting aside the Proposed Transaction or awarding rescission damages to Plaintiffs
if the Proposed Transaction is consummated. The foregoing description does not purport to be complete and is qualified in its entirety by reference to the complaints, which are attached hereto as Exhibit (a)(5)(vi) and Exhibit (a)(5)(xiii), and are
incorporated herein by reference.
Six additional cases have been filed which name as defendants GenMark and the Individual Defendants only. On March 26,
2021, Plaintiff Shiva Stein (“Plaintiff Stein”) filed a lawsuit captioned Shiva Stein v. GenMark Diagnostics, Inc., et al., No. 1:21-cv-00454-MN , and on April 5, 2021, Plaintiff Anthony Franchi (“Plaintiff
Franchi”) filed a lawsuit captioned Anthony Franchi v. GenMark Diagnostics, Inc., et al., (case number not yet assigned), both in the United States District Court for the District of Delaware. On March 31, 2021, Plaintiff Dennis Evangelista
(“Plaintiff Evangelista”) filed a lawsuit captioned Dennis Evangelista v. GenMark Diagnostics, Inc., et al., No. 21CV0567-BEN-JLB, and on April 2, 2021, Plaintiff Bryan Anderson (“Plaintiff Anderson”) filed a
lawsuit captioned Bryan Anderson v. GenMark Diagnostics, Inc., et al., No. 21CV0576-BEN-JLB, both in the United States District Court for the Southern District of California. On April 5, 2021, Plaintiff Rick Turpin (“Plaintiff
Turpin”) filed a lawsuit captioned Rick Turpin v. GenMark Diagnostics, Inc., et al., 1:21-cv-01840 in United States District Court for the Eastern District of New York. On April 6, 2021, Plaintiff Allan Wanamaker (“Plaintiff
Wanamaker”) filed a lawsuit captioned Allan Wanamaker v. GenMark Diagnostics, Inc., et al., No. 1:21-cv-02909 in United States District Court for the Southern District of New York. In these complaints, Plaintiffs Stein, Franchi,
Evangelista, Anderson, Turpin, and Wanamaker allege that GenMark and the Individual Defendants violated Sections 14(d)(4) and 14(e) of the Exchange Act and the SEC Rule 14a-9, and that the Individual Defendants violated Section 20(a) of the Exchange
Act, based upon alleged material misstatements or omissions in the Recommendation Statement relating to (a) the financial projections made in connection with the Proposed Transaction, (b) the financial analysis of J.P. Morgan, (c) the existence of
nondisclosure agreements with certain provisions, and/or (d) background, process, and/or purported potential conflicts of interest concerning the Proposed Transaction. The complaints include demands for, among other things, an injunction preventing
the Defendants from closing the Proposed Transaction. Plaintiffs Stein, Franchi, Anderson and Turpin alternatively demand rescinding the Proposed Transaction or awarding rescission damages to Plaintiffs if the Proposed Transaction is consummated.
The foregoing description does not purport to be complete and is qualified in its entirety by reference to the complaints, which are attached hereto as Exhibits (a)(5)(vii) through (a)(5)(xii) and are incorporated herein by reference.