SC TO-T/A

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

(Rule 14d-100)

TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1)

OF THE SECURITIES EXCHANGE ACT OF 1934

Amendment No. 1

ZOGENIX, INC.

(Name of Subject Company (Issuer))

Zinc Merger Sub, Inc.

an indirect wholly owned subsidiary of

UCB S.A.

(Names of Filing Persons (Offerors))

Common Stock, par value $0.001 per share

(Title of Class of Securities)

98978L204

(CUSIP Number of Class of Securities (Underlying Common Stock))

Bill Silbey

Executive Vice President and General Counsel

UCB S.A.

Allée de la Recherche, 60

1070 Brussels

Tel: 32 2 559 99 99

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications on Behalf of Filing Persons)

Copies to:

J. D. Weinberg, Esq.

Kyle Rabe, Esq.

Covington & Burling LLP

The New York Times Building

620 Eighth Avenue

New York, NY 10018-1405

+1 (212) 841 1000

Calculation of Filing Fee

Transaction Valuation*	Amount of Filing Fee**
$1,670,581,276	$154,863

* Estimated solely for purposes of calculating the filing fee. This calculation is based on the offer to purchase all of the issued and outstanding shares of common stock, par value $0.001 per share, of Zogenix, Inc. (“Zogenix”), at a purchase price of $26.00 per share, net to the seller in cash, without interest and less any applicable tax withholding. As of January 27, 2022 (the most recent practicable date): (i) 56,125,822 shares of Zogenix common stock were issued and outstanding, (ii) 6,637,422 shares of Zogenix common stock were subject to outstanding Zogenix stock options, (iii) 804,112 shares of Zogenix common stock were subject to outstanding Zogenix restricted stock unit awards, (iv) 300,255 shares of Zogenix common stock were subject to outstanding Zogenix performance stock unit awards (at maximum), and (v) rights to purchase a maximum of 385,515 shares of Zogenix common stock pursuant to Zogenix’s 2010 Employee Stock Purchase Plan were outstanding.

** The filing fee was calculated in accordance with Rule 0-11 under the Securities Exchange Act of 1934, as amended, and Fee Rate Advisory No. 1 for Fiscal Year 2022, issued August 23, 2021, by multiplying the transaction value by .0000927.

☒  Check the box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.

Amount Previously Paid:                 $154,863	Filing Party: Zinc Merger Sub, Inc. and UCB S.A.
Form or Registration No.: Schedule TO	Date Filed:                 February 1, 2022

☐  Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

☒  Third-party tender offer subject to Rule 14d-1.

☐  Issuer tender offer subject to Rule 13e-4.

☐  Going-private transaction subject to Rule 13e-3.

☐  Amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer:  ☐

If applicable, check the appropriate box(es) below to designate the appropriate rule provision(s) relied upon:

☐  Rule 13e-4(i) (Cross-Border Issuer Tender Offer)

☐  Rule 14d-1(d) (Cross-Border Third-Party Tender Offer)

This Amendment No. 1 (this “Amendment”) amends and supplements the Tender Offer Statement on Schedule TO filed with the Securities and Exchange Commission on February 1, 2022 (together with any subsequent amendments and supplements thereto, the “Schedule TO”), by Zinc Merger Sub, Inc., a Delaware corporation (“Purchaser”) and an indirect wholly owned subsidiary of UCB S.A., a société anonyme formed under the laws of Belgium (“Parent”), and Parent. The Schedule TO relates to the offer by Purchaser to purchase all of the outstanding shares of common stock, par value $0.001 per share (the “Shares”), of Zogenix, Inc., a Delaware corporation (“Zogenix”), in exchange for (i) $26.00 per Share, net to the seller in cash, without interest and less any applicable withholding taxes (the “Cash Amount”), plus (ii) one non-transferable contingent value right per Share (each, a “CVR”), which CVR represents the right to receive a contingent payment of $2.00, net to the seller in cash, without interest and less any applicable tax withholding, which amount will become payable, if at all, if a specified milestone is achieved on or prior to December 31, 2023 (the Cash Amount plus one CVR, collectively, or any greater amount per Share that may be paid pursuant to the Offer, being hereinafter referred to as the “Offer Price”), upon the terms and subject to the conditions set forth in the Offer to Purchase and in the related Letter of Transmittal, copies of which are attached to the Schedule TO as Exhibits (a)(1)(A) and (a)(1)(B), respectively.

Except as otherwise set forth in this Amendment, the information set forth in the Schedule TO remains unchanged and is incorporated herein by reference to the extent relevant to the items in this Amendment. Capitalized terms used but not defined herein have the meanings ascribed to them in the Schedule TO.

Items 1 through 9; and Item 11

(a) The disclosure in the Offer to Purchase and Item 11 of the Schedule TO is hereby amended and supplemented by deleting the second sentence of the first paragraph under Section 16—“Certain Legal Matters; Regulatory Approvals – Antitrust Compliance” of the Offer to Purchase and replacing it with the following paragraph:

“Parent and Zogenix filed their respective Premerger Notification and Report Forms with the FTC and the Antitrust Division on February 1, 2022. The waiting period applicable to the purchase of the Shares pursuant to the Offer will expire at 11:59 p.m., Eastern Time, on March 3, 2022. This period may change if the FTC or the Antitrust Division, as applicable, grants earlier termination of the waiting period, Parent voluntarily withdraws and refiles its Premerger Notification and Report Form, or the FTC or the Antitrust Division, as applicable, issues a request for additional information or documentary material prior to that time.”

(b) The disclosure in the Offer to Purchase and Item 11 of the Schedule TO is hereby amended and supplemented by deleting the fourth and fifth sentences of the first paragraph in Section 16—“Certain Legal Matters; Regulatory Approvals – Antitrust Compliance – Foreign Antitrust Filings in Germany” of the Offer to Purchase and replacing such sentences with the following two sentences:

“On February 23, 2022, the FCO issued an unconditional phase 1 clearance letter with respect to the Offer and the Merger. Accordingly, the condition to the Offer relating to the receipt of any clearance, approval or consent under applicable antitrust laws, to the extent relating to such clearances, approvals or consents under the German Act Against Restraints of Competition, has been satisfied.”

(c) The disclosure in the Offer to Purchase and Item 11 of the Schedule TO is hereby amended and supplemented by adding the following sub-heading and paragraphs at the end of Section 16—“Certain Legal Matters; Regulatory Approvals” of the Offer to Purchase:

“Certain Litigation

Between February 2, 2022 and the time of filing of this Amendment No. 1, 10 complaints were filed in the United States District Court for the Southern District of New York, the United States District Court for the Northern District of California, the United States District Court for the Eastern District of New York, the United States District Court for the District of Delaware and the United States District Court for the Eastern District of Pennsylvania by putative stockholders of Zogenix: Wang v. Zogenix, Inc., No. 1:22-cv-00900 (S.D.N.Y.); Barman v. Zogenix, Inc., No. 4:22-cv-00719 (N.D. Cal.); Finuliar v. Zogenix, Inc., No. 1:22-cv-01051 (S.D.N.Y.) (the “Finuliar Action”); Hansen v. Zogenix, Inc., No. 1:22-cv-00679 (E.D.N.Y.); Ciccotelli v. Zogenix, Inc., No. 1:22-cv-00172 (D. Del.) (the “Ciccotelli Action”); Eiden v. Zogenix, Inc., No. 1:22-cv-01108 (S.D.N.Y.); Wheeler v. Zogenix, Inc., No. 1:22-cv-00183 (D. Del.); Wilhelm v. Zogenix, Inc., No. 1:22-cv-00185 (D. Del.); Justice v. Zogenix, Inc., No. 2:22-cv-00545 (E.D. Pa.); and Kelly v. Zogenix, Inc., No. 1:22-cv-01184 (S.D.N.Y.) (collectively, the “Complaints”). All of the Complaints name Zogenix and the members of the Zogenix Board as defendants, and the complaint in the Ciccotelli Action also names Parent and Purchaser as defendants. The Complaints assert violations of Sections 14 and 20(a) of the Securities Exchange

1

Act of 1934, as well as Rules 14a-9 and 14d-9 promulgated thereunder. The Complaints contend that Zogenix’s Schedule 14D-9, filed on February 1, 2022, omitted or misrepresented material information regarding the Offer. The complaint in the Finuliar Action also asserts state law claims against the members of the Zogenix Board alleging that they breached their fiduciary duty of candor/disclosure by causing or permitting the Schedule 14D-9 to be filed. The Complaints seek, among other relief, to enjoin or rescind the transactions contemplated by the Merger Agreement, direct the filing of a new or amended Schedule 14D-9, and/or obtain an award of damages, and attorneys’ fees and/or costs.

If additional similar complaints are filed, absent new or different allegations that are material, we do not intend to announce such additional filings.”

(d) The disclosure in the Offer to Purchase and Items 1 through 9 and Item 11 of the Schedule TO, to the extent such Items incorporate by reference the information contained in the Offer to Purchase, is hereby amended and supplemented as follows:

“On February 28, 2022, as agreed with Zogenix, Purchaser extended the expiration of the Offer. The Offer was previously scheduled to expire at one minute after 11:59 p.m., Eastern Time, on March 1, 2022. The expiration time of the Offer is extended to 5:00 p.m., Eastern Time, on March 4, 2022, unless further extended. The Depositary has advised Parent that, as of 5:00 p.m., Eastern Time, on February 25, 2022, approximately 2,378,763 Shares had been validly tendered and received, and not validly withdrawn, pursuant to the Offer, representing approximately 4.2306% of the outstanding Shares.

On February 28, 2022, Parent issued a press release announcing Purchaser’s extension of the Offer. The full text of the press release is attached as Exhibit (a)(5)(I) to the Schedule TO and is incorporated herein by reference.”

Amendments to the Offer to Purchase and Exhibits to the Schedule TO

All references to (i) “one minute after 11:59 p.m., Eastern Time, on March 1, 2022” set forth in the Offer to Purchase (Exhibit (a)(1)(A)), Form of Letter of Transmittal (including Guidelines for Certification of Taxpayer Identification Number on IRS Form W-9 or IRS Form W-8) (Exhibit (a)(1)(B)), Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (Exhibit (a)(1)(C)), and Form of Letter to Clients for use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (Exhibit (a)(1)(D)) are hereby amended and replaced with “5:00 p.m., Eastern Time, on March 4, 2022.”

Item 12. Exhibits.

Item 12 of the Schedule TO is hereby amended and supplemented by adding the following exhibits:

Exhibit No.	Description
(a)(5)(I)	Press release issued by UCB S.A., dated February 28, 2022.*
107	Filing Fee Table.*

* Filed herewith.

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SIGNATURES

After due inquiry and to the best knowledge and belief of the undersigned, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Zinc Merger Sub, Inc.
By:	/s/ Jennifer Trevett
	Name:	Jennifer Trevett
	Title:	Vice President & Secretary
UCB S.A.
By:	/s/ Charl van Zyl
	Name:	Charl van Zyl
	Title:	Executive Vice President

Date: February 28, 2022

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EX-99.(A)(5)(I)

Exhibit (a)(5)(I)

UCB Announces Extension of Tender Offer to Acquire Zogenix, Inc.

Brussels (Belgium), 28 February 2022 – 7.00 am (CEST) – UCB (Euronext: UCB) today announced that it is extending its tender offer to purchase all outstanding shares of common stock of Zogenix, in connection with UCB’s pending acquisition of Zogenix (NASDAQ: ZGNX), until 5:00 p.m., Eastern time, on March 4, 2022.

As previously announced on February 1, 2022, UCB commenced, through an indirect wholly-owned subsidiary, Zinc Merger Sub, Inc., a tender offer to purchase all outstanding shares of Zogenix for a purchase price per share of US$ 26.00 in cash at closing, plus a contingent value right (CVR) for a potential cash payment of US$ 2.00 upon EU approval by December 31, 2023, of FINTEPLA^® as an orphan medicine for treatment of Lennox-Gastaut syndrome (LGS). The tender offer was previously scheduled to expire at one minute after 11:59 p.m., Eastern time, on March 1, 2022. The tender offer may be extended further in accordance with the merger agreement and the applicable rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). All other terms and conditions of the tender offer will remain unchanged during the extended period.

The closing of the tender offer remains subject to certain conditions, including the tender of shares representing at least a majority of the total number of Zogenix’s outstanding shares, receipt of required antitrust clearance, and other customary conditions.

The Depositary for the tender offer is American Stock Transfer & Trust Company, LLC. The Depositary has advised UCB that, as of 5:00 p.m., Eastern time, on February 25, 2022, the last business day prior to the announcement of the extension of the tender offer, approximately 2,378,763 shares of Zogenix had been validly tendered and received, and not validly withdrawn, pursuant to the tender offer, representing approximately 4.2306% of Zogenix’s outstanding shares. Stockholders who have already tendered their shares do not need to retender such shares or take any other action as a result of the extension of the tender offer.

The Information Agent for the tender offer is Innisfree M&A Incorporated. The tender offer materials may be obtained at no charge by directing a request by mail to Innisfree M&A Incorporated or by calling toll free at (888) 750-5835, and may also be obtained at no charge at the website maintained by the SEC at www.sec.gov.

For further information, contact UCB:

Investor Relations

Antje Witte

T +32.2.559.9414

antje.witte@ucb.com

Corporate Communications

Laurent Schots, Media Relations

T+32.2.559.9264

Laurent.schots@ucb.com    

Nick Francis

T +44 7769 307745

Nick.francis@ucb.com

Erica Puntel (U.S. Media)

T +404 938 5359

Erica.puntel@ucb.com

About UCB

UCB, Brussels, Belgium (www.ucb.com) is a global biopharmaceutical company focused on the discovery and development of innovative medicines and solutions to transform the lives of people living with severe diseases of the immune system or of the central nervous system. With approximately 8 600 people in approximately 40 countries, the company generated revenue of € 5.8 billion in 2021. UCB is listed on Euronext Brussels (symbol: UCB). Follow us on Twitter: @UCB_news.

Important Information About the Tender Offer

This press release is for informational purposes only and is neither an offer to purchase nor a solicitation of an offer to sell any shares of the common stock of Zogenix, Inc. (“Zogenix”) or any other securities, nor is it a substitute for the tender offer materials described herein. A tender offer statement on Schedule TO, including an offer to purchase, a letter of transmittal and related documents, has been filed by UCB S.A. (“UCB”) and Zinc Merger Sub, Inc., an indirect wholly-owned subsidiary of UCB, with the Securities and Exchange Commission (the “SEC”), and a solicitation/recommendation statement on Schedule 14D-9 has been filed by Zogenix with the SEC.

INVESTORS AND SECURITY HOLDERS ARE URGED TO READ CAREFULLY BOTH THE TENDER OFFER MATERIALS (INCLUDING AN OFFER TO PURCHASE, A RELATED LETTER OF TRANSMITTAL AND CERTAIN OTHER TENDER OFFER DOCUMENTS) AND THE SOLICITATION/RECOMMENDATION STATEMENT ON SCHEDULE 14D-9 REGARDING THE OFFER, AS THEY MAY BE AMENDED FROM TIME TO TIME, WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION THAT INVESTORS AND SECURITY HOLDERS SHOULD CONSIDER BEFORE MAKING ANY DECISION REGARDING TENDERING THEIR SECURITIES.

Investors and security holders may obtain a free copy of the Offer to Purchase, the related Letter of Transmittal, certain other tender offer documents and the Solicitation/Recommendation Statement and other documents filed with the SEC at the website maintained by the SEC at www.sec.gov or by directing such requests to Innisfree M&A Incorporated, the Information Agent for the offer, by calling toll free at (888) 750-5835. In addition, Zogenix files annual, quarterly and current reports and other information with the SEC, which are available to the public from commercial document-retrieval services and at the SEC’s website at www.sec.gov. Copies of the documents filed with the SEC by UCB in connection with the offer may be obtained at no charge on UCB’s internet website at www.ucb.com or by contacting UCB at Allée de la Recherche, 60 1070 Brussels, Belgium, or Tel: +32 2 559 99 99. Copies of the documents filed with the SEC by Zogenix may be obtained at no charge on Zogenix’s internet website at www.zogenix.com or by contacting Zogenix at 5959 Horton St Fl 5, Emeryville, California, 94608, USA, or Tel: +1 (510) 550 8300.

Forward looking statements

This news release of UCB S.A., Brussels, Belgium (the “company”) includes statements that are not statements of historical fact, or “forward-looking statements,” including with respect to the company’s proposed acquisition of Zogenix. Such forward-looking statements include, but are not limited to, the ability of the company and Zogenix to complete the transactions contemplated by the merger agreement, including the parties’ ability to satisfy the conditions to the consummation of the offer contemplated thereby and the other conditions set forth in the merger agreement, statements about the expected timetable for completing the transaction, the company’s and Zogenix’s beliefs and expectations and statements about the benefits sought to be achieved in the company’s proposed acquisition of Zogenix, the potential effects of the acquisition on both the company and Zogenix, the possibility of any termination of the merger agreement, as well as the expected benefits and success of Zogenix’s product candidates. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees that the conditions to the closing of the proposed transaction will be satisfied on the expected timetable or at all or that pipeline products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, uncertainties as to the timing of the offer and the subsequent merger; uncertainties as to how many of Zogenix’s shares will be tendered in the offer by Zogenix’s stockholders; the risk that competing offers or acquisition proposals will be made; the possibility that various conditions to the consummation of the offer and the merger may not be satisfied or waived; the effects of disruption from the transactions contemplated by the merger agreement and the impact of the announcement and pendency of the transactions on Zogenix’s business; the risk that stockholder litigation in connection with the offer or the merger may result in significant costs of defense, indemnification and liability; the risks related to non-achievement of the CVR milestones and that holders of the CVRs will not receive payments in respect of the CVRs; the global spread and impact of COVID-19, changes in general economic, business and competitive conditions, the inability to obtain necessary regulatory approvals or to obtain them on acceptable terms or within expected timing, costs associated with research and development, changes in the prospects for products in the pipeline or under development by UCB, effects of future judicial decisions or governmental investigations, safety, quality, data integrity or manufacturing issues; potential or actual data security and data privacy breaches, or disruptions of our information technology systems, product liability claims, challenges to patent protection for products or product candidates, competition from other products including biosimilars, changes in laws or regulations, exchange rate fluctuations, changes or uncertainties in tax laws or the administration of such laws, and hiring and retention of its employees.

UCB expressly disclaims any obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise, except to the extent required by law.

EX-FILING FEES

Exhibit 107

Calculation of Filing Fee Tables

Schedule TO

(Rule 14d-100)

(Amendment No. 1)

ZOGENIX, INC.

(Name of Subject Company (Issuer))

Zinc Merger Sub, Inc.

an indirect wholly owned subsidiary of

UCB S.A.

(Names of Filing Persons (Offerors))

Table 1—Transaction Valuation

	Transaction     Valuation	Fee     rate	Amount of     Filing Fee
Fees to Be Paid	0	.0000927	0
Fees Previously Paid	$1,670,581,276		$154,863
Total Transaction Valuation	$1,670,581,276
Total Fees Due for Filing			$154,863
Total Fees Previously Paid			$154,863
Total Fee Offsets			0
Net Fee Due			0

The Transaction Valuation is estimated solely for purposes of calculating the filing fee. This calculation is based on the offer to purchase all of the issued and outstanding shares of common stock, par value $0.001 per share, of Zogenix, Inc. (“Zogenix”), at a purchase price of $26.00 per share, net to the seller in cash, without interest and less any applicable tax withholding. As of January 27, 2022 (the most recent practicable date): (i) 56,125,822 shares of Zogenix common stock were issued and outstanding, (ii) 6,637,422 shares of Zogenix common stock were subject to outstanding Zogenix stock options, (iii) 804,112 shares of Zogenix common stock were subject to outstanding Zogenix restricted stock unit awards, (iv) 300,255 shares of Zogenix common stock were subject to outstanding Zogenix performance stock unit awards (at maximum), and (v) rights to purchase a maximum of 385,515 shares of Zogenix common stock pursuant to Zogenix’s 2010 Employee Stock Purchase Plan were outstanding.