Mark Tyndall - 31 Jul 2025 Form 4 Insider Report for Mallinckrodt plc

Signature
/s/ Mark Tyndall
Transactions as of
31 Jul 2025
Net transactions value
$0
Form type
4
Filing time
04 Aug 2025, 20:50:48 UTC
Previous filing
02 Jan 2025
Next filing
05 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tyndall Mark Anthony EVP & CLO and Corp Sec 675 MCDONNELL BLVD., HAZELWOOD /s/ Mark Tyndall 04 Aug 2025 0001944622

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction Restricted Stock Units Award $0 +32,828 +300% $0.000000 43,771 31 Jul 2025 Ordinary Shares 32,828 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On July 31, 2025, pursuant to the Transaction Agreement, dated as of March 13, 2025 (as amended, the "Transaction Agreement"), by and among Mallinckrodt plc (the "Issuer"), Endo, Inc. ("Endo") and Salvare Merger Sub LLC, the Issuer's wholly owned subsidiary ("Merger Sub"), the Merger Sub merged with and into Endo (the "Business Combination"), with Endo surviving the Business Combination as a wholly owned subsidiary of the Issuer.
F2 Upon consummation of the Business Combination, each performance unit ("PSU") held by the reporting person automatically converted into a restricted unit ("RSU"). Each RSU will fully vest on December 25, 2026.

Remarks:

This Form 4 constitutes a notice to the Issuer for purposes of Part V of the Companies Act 2014.