Form 8.3 - Avadel Pharmaceuticals plc

FORM 8.3

IRISH TAKEOVER PANEL

DISCLOSURE UNDER RULE 8.3 OF THE IRISH TAKEOVER PANEL ACT, 1997, TAKEOVER RULES, 2013

DEALINGS BY PERSONS WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE

1. KEY INFORMATION

2. INTERESTS AND SHORT POSITIONS

(110) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3)

(b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3)

3. DEALINGS (Note 4)

(110) Purchases and sales

(b) Derivatives transactions (other than options transactions)

(c) Options transactions in respect of existing relevant securities

(i) Writing, selling, purchasing or varying

(ii) Exercising

(d) Other dealings (including transactions in respect of new securities) (Note 4)

4. OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Is a Supplemental Form 8 attached? (Note 9)

NO

Date of disclosure

12 th December 2025

Contact name

Divya K

Telephone number

+918067452364

If a connected EFM, name of offeree/offeror with which connected

N/A

If a connected EFM, state nature of connection (Note 10)

N/A