MARATHON ASSET MANAGEMENT LP - 30 Sep 2025 SCHEDULE 13G/A Report for Mallinckrodt plc Ordinary Shares, par value $0.01 per share (MNKTQ)

Filing manager
MARATHON ASSET MANAGEMENT LP
Reporting owner
MARATHON ASSET MANAGEMENT GP, L.L.C.
Security
Mallinckrodt plc Ordinary Shares, par value $0.01 per share
Beneficially owned shares
3,030,311 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13G/A

Passive or exempt beneficial ownership filing.

Ownership

7.7%

Beneficial ownership of this reported class.

Shares

3,030,311 shares

Shares beneficially owned as disclosed.

Event date

30 Sep 2025

Date tied to the ownership event or amendment.

Accepted by SEC

14 Nov 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
7.7%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
MNKTQ
Shares outstanding
39,354,688 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13G/A
Accepted by SEC
14 Nov 2025, 16:05:11 UTC
Event date
30 Sep 2025
Next SEC filing
15 May 2026
Source filing
View source filing

Key filing fact

MARATHON ASSET MANAGEMENT LP disclosed 7.7% ownership in Mallinckrodt plc Ordinary Shares, par value $0.01 per share (MNKTQ) on 30 Sep 2025.

Key facts

  • MARATHON ASSET MANAGEMENT LP filed SCHEDULE 13G/A for Mallinckrodt plc Ordinary Shares, par value $0.01 per share (MNKTQ).
  • Disclosed ownership: 7.7%.
  • Date of event: 30 Sep 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 14 Nov 2025, 16:05.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (13)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
MARATHON ASSET MANAGEMENT GP, L.L.C. 7.7% 3,030,311 0 3,030,311 /s/ Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON ASSET MANAGEMENT, L.P. 7.7% 3,030,311 0 3,030,311 By: Marathon Asset Management, GP, L.L.C., its general partner, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON BLUE GRASS CREDIT FUND, LP 0.8% 319,726 0 319,726 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON CENTRE STREET PARTNERSHIP, L.P. 1.1% 426,265 0 426,265 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON STEPSTONE MASTER FUND LP 0.2% 78,188 0 78,188 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MCSP SUB LLC 0.3% 100,764 0 100,764 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
QUAESTIO ALTERNATIVE FUNDS S.C.A., SICAV-FIS: CMAB - SIF - CREDIT MULTI ASSET POOL B 0% 1,344 0 1,344 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
TRS CREDIT FUND, LP 0.8% 330,188 0 330,188 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MDCF II INVESTMENT FUND A SCSP 1.9% 752,102 0 752,102 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON DISTRESSED CREDIT FUND, L.P. 2.5% 1,002,997 0 1,002,997 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
MARATHON SPECIAL OPPORTUNITY MASTER FUND LTD 0.1% 18,737 0 18,737 By: Marathon Asset Management L.P., solely in its capacity as Investment Manager, /s/Jamie Raboy Jamie Raboy/Authorized Signatory
BRUCE RICHARDS 7.7% 3,030,311 0 3,030,311 /s/ Bruce Richards Jamie Raboy/Authorized Signatory
LOUIS HANOVER 7.7% 3,030,311 0 3,030,311 /s/ Louis Hanover Jamie Raboy/Authorized Signatory
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