# EDGAR Filing Document

**Accession Number:** 0001567892
**File Stem:** 0001193125-25-267547
**Filing Date:** 2025-11
**Character Count:** 11779
**Document Hash:** 0f4d65e87d7825e5c17c3645f05ba3eb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-267547.hdr.sgml**: 20251105

**ACCESSION NUMBER**: 0001193125-25-267547

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20251105

**DATE AS OF CHANGE**: 20251105

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mallinckrodt plc
- **CENTRAL INDEX KEY:** 0001567892
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 981088325
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 1226

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-87833
- **FILM NUMBER:** 251455637

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** COLLEGE BUSINESS & TECHNOLOGY PARK
- **STREET 2:** CRUISERATH, BLANCHARDSTOWN
- **CITY:** DUBLIN 15
- **PROVINCE COUNTRY:** L2
- **ZIP:** D15
- **BUSINESS PHONE:** 353 1 6960000

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** COLLEGE BUSINESS & TECHNOLOGY PARK
- **STREET 2:** CRUISERATH, BLANCHARDSTOWN
- **CITY:** DUBLIN 15
- **PROVINCE COUNTRY:** L2
- **ZIP:** D15
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Silver Point Capital L.P.
- **CENTRAL INDEX KEY:** 0001332784

**ORGANIZATION NAME:**
- **EIN:** 223844936
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** TWO GREENWICH PLAZA, SUITE 1
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830
- **BUSINESS PHONE:** (203) 542-4000

**MAIL ADDRESS:**
- **STREET 1:** TWO GREENWICH PLAZA, SUITE 1
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830

### Attached PDF Documents

**Attachment 1:** `ck0000000000-ex99_1.pdf`

_No text found in this document._

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 4)**

**Mallinckrodt plc**

*(Name of Issuer)*

**Common Stock, par value $0.01 per share**

*(Title of Class of Securities)*

**G5890A102**

*(CUSIP Number)*

**James Kasmarcik**<br>Silver Point Capital, L.P.<br>2 Greenwich Plaza, Suite 1<br>Greenwich CT 06830<br>203-542-4200

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**11/03/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **G5890A102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Silver Point Capital, L.P.** | Name of reporting person<br>**Silver Point Capital, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4213724.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4213724.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

| **CUSIP No.** | **G5890A102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Edward A. Mule** | Name of reporting person<br>**Edward A. Mule** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4213724.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4213724.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **G5890A102** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Robert J. O'Shea** | Name of reporting person<br>**Robert J. O'Shea** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4213724.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4213724.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | Aggregate amount beneficially owned by each reporting person<br>**4213724.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.01 per share

**(b) Name of Issuer:**
Mallinckrodt plc

**(c) Address of Issuer's Principal Executive Offices:**
College Business & Technology Park, Cruiserath, Blanchardstown, Dublin 15, L2, D15 TX2V

This Amendment No. 4 (the "Amendment") amends the statement on Schedule 13D originally filed by the Reporting Persons on November 24, 2023, as amended by Amendment No. 1 filed by the Reporting Persons on January 22, 2024, Amendment No. 2 filed by the Reporting Persons on July 8, 2024, and Amendment No. 3 filed by the Reporting Persons on March 18, 2025 (as amended, the "Schedule 13D"). Capitalized terms used but not otherwise defined in this Amendment shall have the meanings ascribed to such terms in the Schedule 13D. Except as otherwise provided herein, each Item of the Schedule 13D remains unchanged.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The responses of the Reporting Persons to rows (7) through (13) of the cover pages of this Amendment are incorporated herein by reference. As of November 3, 2025, the Reporting Persons beneficially owned 3,863,724 shares of Common Stock, representing 9.8% of the shares of Common Stock then outstanding. The Reporting Persons currently beneficially own 4,213,724 shares of Common Stock, representing 10.7% of the shares of Common Stock outstanding.

As reported in the Issuer's Current Report on Form 8-K filed with the Securities and Exchange Commission on October 30, 2025, as of October 27, 2025, there were 39,526,162 shares of Common Stock issued and outstanding.

**(b)**
The responses of the Reporting Persons to rows (7) through (13) of the cover pages of this Amendment are incorporated herein by reference.

**(c)**
The following sets forth all transactions in the Common Stock effected by the Reporting Persons during the last 60 days: On November 5, 2025, the Reporting Persons purchased 300,000 shares of Common Stock at a price per share of $103.50 in the open market through brokers. On November 4, 2025, the Reporting Persons purchased 50,000 shares of Common Stock at a price per share of $102.00 in the open market through brokers. On November 3, 2025, the Reporting Persons purchased 320,000 shares of Common Stock at a price per share of $103.50 in the open market through brokers. On October 30, 2025, the Reporting Persons purchased 40,000 shares of Common Stock at a price per share of $102.875 in the open market through brokers.

### SIGNATURE

After reasonable 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.

**Reporting Person:** Silver Point Capital, L.P.

**Signature:** /s/ Steven Weiser

**Name/Title:** Steven Weiser/Authorized Signatory

**Date:** 11/05/2025

After reasonable 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.

**Reporting Person:** Edward A. Mule

**Signature:** /s/ Steven Weiser

**Name/Title:** Steven Weiser/Attorney-in-fact

**Date:** 11/05/2025

After reasonable 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.

**Reporting Person:** Robert J. O'Shea

**Signature:** /s/ Steven Weiser

**Name/Title:** Steven Weiser/Attorney-in-fact

**Date:** 11/05/2025