Mallinckrodt plc
Total Trades
4
Buys
4
Sells
0
Largest Trade
$1M+
Insiders
1
Institutional Funds
2
Inst. Value
$500K+
Activist Filings
44
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| GOLDENTREE ASSET MANAGEMENT LP | 10% Owner | BUY | $1M+ | 275K | $52.75 | Jun 18, 2024 |
| GOLDENTREE ASSET MANAGEMENT LP | 10% Owner | BUY | $1M+ | 165K | $50.00 | May 29, 2024 |
| GOLDENTREE ASSET MANAGEMENT LP | 10% Owner | BUY | $1M+ | 225K | $38.25 | Feb 20, 2024 |
| GOLDENTREE ASSET MANAGEMENT LP | 10% Owner | BUY | $500K+ | 20K | $37.55 | Feb 6, 2024 |
Institutional Ownership
13F filings as of Mar 31, 2023 · 2 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| NOMURA ASSET MANAGEMENT CO LTD | 77K | $500K+ | SH |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 10K | $50K–$100K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Hein Park Capital Management LP
SC 13G · Feb 13, 2026
5.5%
2.1M shares
Hudson Bay Capital Management LP
SC 13G/A · Feb 11, 2026
5.2%
2.0M shares
SC 13D/A · Dec 10, 2025
11.9%
4.7M shares
MARATHON ASSET MANAGEMENT GP, L.L.C.
SC 13G/A · Nov 14, 2025
7.7%
3.0M shares
SC 13D/A · Nov 6, 2025
10.7%
4.2M shares
GoldenTree Asset Management LP
SC 13D · Aug 7, 2025
20.1%
7.9M shares
Hudson Bay Capital Management LP
SC 13G/A · Aug 7, 2025
6.3%
2.5M shares
Hein Park Capital Management LP
SC 13D/A · Aug 4, 2025
4.9%
2.0M shares
SC 13G/A · May 14, 2025
4.1%
804K shares
SC 13D/A · Mar 19, 2025
8.6%
1.7M shares
Hein Park Capital Management LP
SC 13D/A · Mar 17, 2025
9.7%
1.9M shares
SC 13D/A · Nov 21, 2024
1.3%
256K shares
SC 13G/A · Nov 14, 2024
6.0%
1.2M shares
Marathon Asset Management GP, L.L.C.
SC 13G/A · Aug 27, 2024
8.8%
1.7M shares
Silver Point Capital, L.P. (2)
SC 13D/A · Jul 8, 2024
8.1%
1.6M shares
Hein Park Capital Management LP
SC 13D/A · Jun 26, 2024
9.1%
1.8M shares
GoldenTree Asset Management LP
SC 13G/A · Jun 18, 2024
16.7%
3.3M shares
Hein Park Capital Management LP
SC 13D/A · Apr 8, 2024
7.8%
1.5M shares
Hein Park Capital Management LP
SC 13D/A · Mar 11, 2024
6.2%
1.2M shares
Alta Fundamental Advisers LLC 2
SC 13G/A · Feb 14, 2024
1.5%
29.9M shares
SC 13G/A · Feb 14, 2024
3.1%
617K shares
SC 13G/A · Feb 14, 2024
0.0%
0 shares
SC 13G/A · Feb 14, 2024
4.6%
617K shares
SC 13G/A · Feb 12, 2024
5.0%
995K shares
SC 13D/A · Jan 22, 2024
5.5%
1.1M shares
Hein Park Capital Management LP
SC 13D · Jan 16, 2024
5.1%
999K shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G/A · Jan 4, 2024
0.0%
0 shares
GoldenTree Asset Management LP
SC 13G · Dec 13, 2023
10.5%
2.1M shares
SC 13D · Nov 24, 2023
6.1%
1.2M shares
SC 13G · Nov 20, 2023
6.2%
1.2M shares
SC 13D/A · Nov 17, 2023
4.0%
789K shares
SC 13D/A · Aug 24, 2023
11.1%
1.5M shares
SC 13D · Jun 16, 2023
14.8%
1.9M shares
SC 13D · Jun 16, 2023
11.2%
1.5M shares
SC 13G/A · Jun 9, 2023
3.9%
516K shares
SC 13G · May 30, 2023
3.0%
400K shares
SC 13G · May 30, 2023
14.8%
1.9M shares
Millstreet Capital Management LLC
SC 13G · Feb 14, 2023
7.9%
1.0M shares
SC 13G/A · Feb 14, 2023
5.3%
695K shares
Hudson Bay Capital Management LP
SC 13G · Feb 9, 2023
8.0%
1.1M shares
SC 13G · Feb 1, 2023
7.6%
999K shares
JPMORGAN CHASE & CO. 13-2624428
SC 13G · Jan 11, 2023
8.1%
1.1M shares
SC 13G · Aug 30, 2022
5.9%
780K shares
SC 13G · Jun 27, 2022
15.4%
2.0M shares