Squarepoint Ops SC 13D/AMallinckrodt / Squarepoint Ops ownership change

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

This Amendment No. 1 (the “Amendment”) amends and supplements the Schedule 13D filed by the Reporting Persons on November 24, 2023 (the “Original Schedule 13D”) and, as amended and supplemented by this Amendment, the “Schedule 13D”), with respect to the Shares. Capitalized terms used in this Amendment and not otherwise defined shall have the meanings ascribed to them in the Original Schedule 13D. This filing constitutes an exit filing as the Reporting Persons have ceased to be the beneficial owners of more than 5 percent of the referenced class of securities.

Item 3 is hereby amended and supplemented by adding the following:

The information set forth in Item 4 is incorporated herein by reference.

Item 5 is hereby amended and restated as follows:

Based on 19,696,335 ordinary shares, $0.01 par value, reported outstanding as of November 14, 2023, in the Issuer’s Form 8-K filed with the Securities and Exchange Commission on November 15, 2023.

The information contained in rows 7, 8, 9, 10, 11 and 13 on each of the cover pages of this Statement is incorporated by reference in its entirety into this Item 5.

(a), (b) As of the date hereof, Arini Credit is the owner of record of 881,588 Ordinary Shares and Squarepoint is the owner of record of 86,489 Ordinary Shares. Squarepoint Ops, in its capacity as the investment advisor to both Arini Credit and Squarepoint, has the ability to indirectly control the decisions of Arini Credit and Squarepoint regarding the vote and disposition of securities held by Arini Credit and Squarepoint and as such may be deemed to have an indirect beneficial ownership of the Ordinary Shares held of record by Arini Credit and Squarepoint.

(c) Set forth on Schedule A hereto are all the transactions in the shares of Ordinary Shares effected during the past sixty days by the Reporting Persons.

(d) Other than as disclosed in Item 4 of the Original Schedule 13D, no person other than the Reporting Persons are known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Shares held by the Reporting Persons.

(e) As a result of the transactions described herein, on March 13, 2024, each of the reporting persons ceased to be the beneficial owner of more than five percent of the Ordinary Shares. The filing of this Amendment No. 1 constitutes an exit filing for the Reporting Persons.

SIGNATURES

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

Dated: March 15, 2024

SCHEDULE A