Insider filing report for Changes in Beneficial Ownership
- Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
- Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
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- Peter Lynch
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 4)*
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Mallinckrodt plc (Name of Issuer) |
Common Stock, par value $0.01 per share (Title of Class of Securities) |
G5890A102 (CUSIP Number) |
James Kasmarcik Silver Point Capital, L.P., 2 Greenwich Plaza, Suite 1 Greenwich, CT, 06830 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) |
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.


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).
SCHEDULE 13D
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| CUSIP No. | G5890A102 |
| 1 |
Name of reporting person
Silver Point Capital, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
4,213,724.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
![]() | ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.7 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IA, PN |
SCHEDULE 13D
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| CUSIP No. | G5890A102 |
| 1 |
Name of reporting person
Edward A. Mule | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
4,213,724.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
![]() | ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.7 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| CUSIP No. | G5890A102 |
| 1 |
Name of reporting person
Robert J. O'Shea | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
![]() | ||||||||
| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
4,213,724.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
![]() | ||||||||
| 13 | Percent of class represented by amount in Row (11)
10.7 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
|
| 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,
IRELAND
, D15 TX2V. | |
Item 1 Comment:
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 3. | Source and Amount of Funds or Other Consideration | |
Item 3 of the Schedule 13D is hereby supplemented as follows: The source of funds used in the purchase reported in Item 5 was working capital of the Reporting Persons. | ||
| 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. | |
| (d) | Other than as disclosed in Item 4, 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 Common Stock held by the Reporting Persons. | |
| (e) | Not applicable. | |
| Item 7. | Material to be Filed as Exhibits. | |
Exhibit No. Description 1 Joint Filing Agreement, dated as of November 5, 2025, by and among the Reporting Persons 2 Power of Attorney of Robert J. O'Shea and Edward A. Mule (incorporated here by reference to Schedule 13G filed by Silver Point Capital, L.P., Edward A. Mule and Robert J. O'Shea with the Securities and Exchange Commission on February 16, 2016 relating to TopBuild Corp.) | ||
| 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.
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(b)