UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

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

OF THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

PAYA HOLDINGS INC.

(Name of Subject Company (Issuer))

PINNACLE MERGER SUB, INC.

(Name of Filing Persons (Offeror))

an indirect, wholly owned subsidiary of

NUVEI CORPORATION

(Name of Filing Persons (Parent of Offeror))

Common Stock, Par Value $0.001 Per Share

(Title of Class of Securities)

70434P103

(Cusip Number of Class of Securities)

Lindsay Matthews

General Counsel and Corporate Secretary

1100 René-Lévesque Boulevard West, Suite 900

Montreal, Quebec H3B 4N4

(514) 313-1190

(Name, Address and Telephone Number of Person Authorized to

Receive Notices and Communications on Behalf of Filing Persons)

Copy to:

Evan Rosen

Davis Polk & Wardwell LLP

450 Lexington Avenue

New York, NY 10017

212-450-4000

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

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

This Amendment No. 1 (this “Amendment”) amends and supplements the Tender Offer Statement on Schedule TO filed by Pinnacle Merger Sub, Inc., a Delaware corporation (“Purchaser”), and Nuvei Corporation, a corporation incorporated pursuant to the laws of Canada (“Parent”), with the U.S. Securities and Exchange Commission on January 24, 2023 (together with any subsequent amendments and supplements thereto, the “Schedule TO”). The Schedule TO relates to the offer by Purchaser to purchase any and all of the issued and outstanding shares of common stock, par value $0.001 per share, of Paya Holdings Inc., a Delaware corporation (the “Company” and such shares, the “Shares”), at a price of $9.75 per Share, without interest, net to the holder in cash, less any applicable withholding taxes, upon the terms and subject to the conditions described in the Offer to Purchase dated January 24, 2023 (together with any amendments or supplements thereto, the “Offer to Purchase”) and in the accompanying Letter of Transmittal (together with any amendments or supplements thereto, the “Letter of Transmittal” and with the Offer to Purchase, the “Offer”), which are annexed to and filed with the Schedule TO as Exhibits (a)(1)(A) and (a)(1)(B), respectively. Purchaser is an indirect, wholly owned subsidiary of Parent. This Amendment is being filed on behalf of Parent and Purchaser. Unless otherwise indicated, references to sections in the Schedule TO are references to sections of the Offer to Purchase.

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.

Item 11. Additional Information.

The Offer to Purchase and Item 11 of the Schedule TO, to the extent such Item incorporates by reference the information contained in the Offer to Purchase, are hereby amended and supplemented as follows:

“Parent and the Company filed Premerger Notification and Report Forms with the FTC and the DOJ relating to Parent’s proposed acquisition of the Company on January 20, 2023. The waiting period under the HSR Act expired on February 6, 2023, at 11:59 p.m., New York time. Accordingly, the condition to the Offer requiring that the waiting period (or any extension thereof) applicable to the Offer under the HSR Act shall have expired or been terminated has been satisfied. The Offer continues to be subject to the remaining conditions set forth in the Offer to Purchase.”

“In connection with the Offer and Merger Agreement, five complaints have been filed as individual actions in United States District Courts and one complaint has been filed in New York Supreme Court. Certain demand letters have also been sent to the Company by purported stockholders making similar allegations.

On January 25, 2023, Ryan O’Dell, a purported stockholder of the Company, filed a complaint in the United States District Court for the Southern District of New York, captioned O’Dell v. Paya Holdings Inc., et al., Case No. 1:23-cv-659 (the “O’Dell Complaint”). On January 31, 2023, Jordan Wilson, a purported stockholder of the Company, filed a complaint in the United States District Court for the Southern District of New York, captioned Jordan Wilson v. Paya Holdings Inc., et al., Case No. 1:23-cv-790 (the “Wilson Complaint”). On January 31, 2023, Robert Wilhelm, a purported stockholder of the Company, filed a complaint in the United States District Court for the Southern District of New York, captioned Wilhelm v. Paya Holdings Inc., et al., Case No. 1:23-cv-119 (the “Wilhelm Complaint”). On February 1, 2023, Dustin Asbury, a purported stockholder of the Company, filed a complaint in the United States District Court for the Southern District of New York, captioned Asbury v. Paya Holdings Inc., et al., Case No. 1-23-cv-861 (the “Asbury Complaint”). On February 2,

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2023, Jacob Wheeler, a purported stockholder of the Company, filed a complaint in the United States District Court for the Southern District of New York, captioned Wheeler v. Paya Holdings Inc., et al., Case No. 1:23-cv-892 (the “Wheeler Complaint” and together with the O’Dell Complaint, the Wilson Complaint, the Wilhelm Complaint and the Asbury Complaint, the “Complaints”). The Complaints allege, among other things, that the defendants (the Company and the Company Board) violated Sections 14(d), 14(e) and 20(a) of the Exchange Act and Rule 14d-9 promulgated thereunder by omitting and/or misrepresenting certain material facts relating to the transactions contemplated by the Merger Agreement from the Schedule 14D-9 filed by the Company on January 24, 2023. The Complaints seek, among other relief, (i) injunctive relief preventing the consummation of the Merger, (ii) recission of the Merger Agreement or rescissory damages, (iii) other damages purportedly incurred on account of the alleged omissions or misstatements, and (iv) an award of plaintiff’s costs and disbursements of the action, including attorneys’ and expert fees and expenses.

On January 31, 2023, Brian Levy, a purported stockholder of the Company, filed a complaint in the Supreme Court of the State of New York for Nassau County, captioned Brian Levy v. Debora Boyda, et al., Index No. 601850/2023 (the “Levy Complaint”). The Levy Complaint alleges, among other things, that the defendants (the Company, the Company Board, and Parent) violated Section 10-5-50 of the Georgia Uniform Securities Act of 2008 and/or negligently and fraudulently misrepresented and concealed certain material facts related to the transactions contemplated by the Merger Agreement under New York common law. The Levy Complaint seeks, among other relief, (i) a declaration that the Company and the Company Board violated Section 10-5-50 of the Georgia Uniform Securities Act of 2008, (ii) a declaration that defendants negligently and fraudulently misrepresented, concealed and omitted material facts related to the Merger, (iii) injunctive relief preventing the consummation of the Merger, and (iv) an award of interest, attorney’s fees, expert fees and other costs.

The outcome of the matters described above cannot be predicted with certainty. However, the Company believes that the allegations in the Complaints, the Levy Complaint and the demand letters are without merit. Additional complaints or demand letters may be filed against or received by the Company, the Company Board, Parent and/or Purchaser in connection with the Transactions, the Schedule TO and the Schedule 14D-9. If additional similar complaints are filed or demand letters received, absent new or different allegations that are material, the Company, Purchaser or Parent will not necessarily announce such additional filings.”

Item 12. Exhibits.

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SIGNATURE

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 7, 2023