Weiss Asset Management LP - 13 Feb 2026 Form 4 Insider Report for AVADEL PHARMACEUTICALS PLC (AVDL)

Role: Former 10% Owner
Signature: Mary Merrigan, Authorized Signatory, Weiss Asset Management LP and WAM GP LLC
Issuer symbol: AVDL
Transactions as of: 13 Feb 2026
Net transactions value: -$233,353,092
Form type: 4
Filing time: 18 Feb 2026, 17:18:42 UTC
Previous filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
Weiss Asset Management LP	Former 10% Owner	222 BERKELEY STREET, 16TH FLOOR, BOSTON	Mary Merrigan, Authorized Signatory, Weiss Asset Management LP and WAM GP LLC	18 Feb 2026	0001357550
WEISS ANDREW M	Former 10% Owner	222 BERKELEY STREET, 16TH FLOOR, BOSTON	Mary Merrigan, duly authorized under a power of attorney by Andrew M. Weiss	18 Feb 2026	0001357643

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AVDL	Ordinary Shares	Sale	$233,353,092	-11,112,052	-100%	$21.00	0	13 Feb 2026	See Footnote 2	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Weiss Asset Management LP is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id	Content
F1	Represents the cash portion of the consideration paid to shareholders upon the closing of the acquisition of the Issuer by Alkermes plc. In connection with such transaction, each outstanding share was automatically converted into the right to receive $21.00 per share in cash, plus a contingent value right to receive a payment of $1.50 in cash if a specified milestone is achieved.
F2	Shares reported herein represent shares beneficially owned by two private investment funds for which Weiss Asset Management LP serves as investment manager. WAM GP LLC is the general partner of Weiss Asset Management LP and Andrew Weiss is the Manager of WAM GP LLC. All of Weiss Asset Management LP, WAM GP LLC, and Andrew Weiss disclaim beneficial ownership of the shares reported herein except to the extent of their pecuniary interest therein.

Content

Represents the cash portion of the consideration paid to shareholders upon the closing of the acquisition of the Issuer by Alkermes plc. In connection with such transaction, each outstanding share was automatically converted into the right to receive $21.00 per share in cash, plus a contingent value right to receive a payment of $1.50 in cash if a specified milestone is achieved.

Shares reported herein represent shares beneficially owned by two private investment funds for which Weiss Asset Management LP serves as investment manager. WAM GP LLC is the general partner of Weiss Asset Management LP and Andrew Weiss is the Manager of WAM GP LLC. All of Weiss Asset Management LP, WAM GP LLC, and Andrew Weiss disclaim beneficial ownership of the shares reported herein except to the extent of their pecuniary interest therein.