Welch Stephen Andrew
SEC insider (Form 3/4/5 filer). CIK 0001944355. EVP & Head of Spec Generics at Mallinckrodt plc (NONE). 4 reported Form 4/5 transactions since Sep 2024; latest on Nov 10, 2025. Located in HAZELWOOD, MO.
Companies Welch Stephen Andrew has filed insider reports for
- Mallinckrodt plc (NONE): Officer, EVP & Head of Spec Generics
Welch Stephen Andrew
CIK: 0001944355
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)1 (25.0%)
Derivative conversions
Awards (A)1 (25.0%)
Compensation grants
Other (G, F, J, C, D, …)2 (50.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
NONE
Mallinckrodt plc
Officer
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Nov 10, 2025No ticker
Keenova Therapeutics plc
DispositionDirectRestricted Stock Units
43.8K shares- - Jul 31, 2025No ticker
Mallinckrodt plc
AwardDirectRestricted Stock Units
32.8K shares- - Jan 1, 2025No ticker
Mallinckrodt plc
ExerciseDirect5.5K shares- - Jan 1, 2025No ticker
Mallinckrodt plc
Tax PaymentDirect1.8K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Nov 10, 2025 | No ticker Keenova Therapeutics plc | Disposition Restricted Stock Units | 43,771 | - | - | Direct |
| Jul 31, 2025 | No ticker Mallinckrodt plc | Award Restricted Stock Units | 32,828 | - | - | Direct |
| Jan 1, 2025 | No ticker Mallinckrodt plc | Exercise | 5,470 | - | $0 | Direct |
| Jan 1, 2025 | No ticker Mallinckrodt plc | Tax Payment | 1,839 | - | $0 | Direct |
1-4 of 4 transactions