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Insider · CIK 0002076829

Susan Ann Williamson

officer

Files at MNKTQ (Mallinckrodt plc). First filing -, latest -.

In brief

Susan Ann Williamson files SEC Form 4 as officer at MNKTQ (Mallinckrodt plc). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; Susan Ann Williamson has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 6 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Jul 21, 2026MNKTQ
Mallinckrodt plc
FTax withholding
Ordinary Shares
-571--1,460Jul 23, 2026
Apr 23, 2026MNKTQ
Mallinckrodt plc
MOption exercise
Ordinary Shares
+1,305--2,031Apr 24, 2026
Apr 23, 2026MNKTQ
Mallinckrodt plc
MOption exercise
Restricted Stock Unitsderivative
-1,305$0.00$026,378Apr 24, 2026
Feb 25, 2026MNKTQ
Mallinckrodt plc
AGrant or award
Restricted Stock Unitsderivative
+15,936$0.00$027,683Feb 26, 2026
Jul 31, 2025MNKTQ
Mallinckrodt plc
AGrant or award
Ordinary Shares
+726--726Aug 4, 2025
Jul 31, 2025MNKTQ
Mallinckrodt plc
AGrant or award
Restricted Stock Unitsderivative
+9,774$0.00$09,774Aug 4, 2025

Questions about Susan Ann Williamson

Answered from the filings on this page, as of the latest one.

Is Susan Ann Williamson buying or selling?

Susan Ann Williamson has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did Susan Ann Williamson's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Susan Ann Williamson has 0.

Where does Susan Ann Williamson file Form 4?

Susan Ann Williamson has filed Form 4 at MNKTQ (Mallinckrodt plc) as EVP & Chief Compliance Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Susan Ann Williamson: insider trades and track record | InsiderTell