Matthew K. Harbaugh serves as Executive at Mallinckrodt plc, where they oversee executive responsibilities. Since joining the company, Matthew K. Harbaugh has executed 55 insider transactions totaling $3.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Nov 1, 2025 involved transacting 9,291.55 shares valued at $0.
Matthew K. Harbaugh currently holds 9,291.55 shares of Mallinckrodt plc (MNK), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Matthew K. Harbaugh has been a net seller of MNK stock. They have purchased $197.3K and sold $2.8M worth of shares.
Matthew K. Harbaugh's most recent insider trade was on Nov 1, 2025, when they sold 9,291.55 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Mar 1, 2023 | NUVA | $150.5K | Payment | 3,526 | $42.67 | Discretionary |
| Mar 1, 2023 | NUVA | $0 | Option Exercise | 12,190 | $N/A | Discretionary |
| Jan 1, 2023 | NUVA | $0 | Option Exercise | 1,286 | $N/A | Discretionary |
| Jan 1, 2023 | NUVA | $18.1K | Payment | 440 | $41.24 | Discretionary |
| Apr 2, 2019 | MNK | $57.8K | Payment | 2,533 | $22.80 | Discretionary |
| Jan 4, 2019 | MNK | $11.3K | Payment | 656 | $17.21 | Discretionary |
| Jan 3, 2019 | MNK | $19.0K | Payment | 1,180 | $16.14 | Discretionary |
| Jan 2, 2019 | MNK | $5.7K | Payment | 341 | $16.59 | Discretionary |
| Apr 2, 2018 | MNK | $0 | Award | 34,058 | $N/A | Discretionary |
| Jan 4, 2018 | MNK | $19.6K | Payment | 838 | $23.40 | Discretionary |
| Jan 3, 2018 | MNK | $35.5K | Payment | 1,508 | $23.51 | Discretionary |
| Jan 2, 2018 | MNK | $0 | Award | 2,404 | $N/A | Discretionary |
| Jan 2, 2018 | MNK | $37.9K | Payment | 1,610 | $23.52 | Discretionary |
| Jul 1, 2017 | MNK | $72.6K | Payment | 1,620 | $44.81 | Discretionary |
| Mar 10, 2017 | MNK | $29.5K | Purchase | 600 | $49.19 | Discretionary |
| Jan 4, 2017 | MNK | $38.5K | Payment | 724 | $53.19 | Discretionary |
| Jan 3, 2017 | MNK | $0 | Award | 13,293 | $N/A | Discretionary |
| Jan 3, 2017 | MNK | $0 | Award | 1,718 | $N/A | Discretionary |
| Jan 2, 2017 | MNK | $215.9K | Payment | 4,334 | $49.82 | Discretionary |
| Jan 2, 2017 | MNK | $0 | Award | 10,864 | $N/A | Discretionary |
| Dec 3, 2016 | MNK | $15.9K | Payment | 297 | $53.61 | Discretionary |
| Jul 1, 2016 | MNK | $90.3K | Payment | 1,460 | $61.84 | Discretionary |
| May 10, 2016 | MNK | $29.7K | Purchase | 500 | $59.37 | Discretionary |
| Feb 9, 2016 | MNK | $81.9K | Purchase | 1,300 | $63.00 | Discretionary |
| Jan 4, 2016 | MNK | $0 | Award | 7,575 | $N/A | Discretionary |
| Jan 4, 2016 | MNK | $0 | Award | 809 | $N/A | Discretionary |
| Jan 2, 2016 | MNK | $49.9K | Payment | 669 | $74.63 | Discretionary |
| Dec 4, 2015 | MNK | $17.6K | Purchase | 240 | $73.54 | Discretionary |