MORGAN STANLEY

Major Shareholding Notification • Jan 12, 2026

National Storage Mechanism | Additional information

RNS Number : 5152O

Morgan Stanley Capital Services LLC

12 January 2026

FORM 38.5(a) (EPT/RI)

IRISH TAKEOVER PANEL

DEALING DISCLOSURE UNDER RULE 38.5(a) OF THE IRISH

TAKEOVER PANEL ACT, 1997, TAKEOVER RULES, 2022

BY A CONNECTED EXEMPT PRINCIPAL TRADER WITH

RECOGNISED INTERMEDIARY STATUS AND DEALING IN

A CLIENT-SERVING CAPACITY

1.             KEY INFORMATION

(a)   Name of exempt principal trader:	Morgan Stanley Capital Services LLC
(b)   Name of offeror/offeree in relation to whose relevant securities this form relates: Use a separate form for each offeror/offeree	Avadel Pharmaceuticals plc
(c)   Name of the party to the offer with which exempt principal trader is connected: (Note 1)	Avadel Pharmaceuticals plc
(d)   Date dealing undertaken:	09 January 2026
(e)   In addition to the company in 1(b) above, is the exempt principal trader also making disclosures in respect of any other party to the offer? If it is a cash offer or possible cash offer, state "N/A"	N/A

2.             DEALINGS BY THE EXEMPT PRINCIPAL TRADER (Note 2)

Where there have been dealings in more than one class of relevant securities of the offeror or offeree named in 1(b), copy table 2(a), (b), (c) or (d) (as appropriate) for each additional class of relevant security dealt in.

The currency of all prices and other monetary amounts should be stated.

(a)           Purchases and sales

Class of relevant security (Note 3)	Purchases/ sales	Total number of securities	Highest price per unit paid/ received	Lowest price per unit paid/ received
0.01 ordinary shares	PURCHASES	11,182	21.5200 USD	21.4800 USD
0.01 ordinary shares	SALES	197	21.5000 USD	21.5000 USD

(b)           Cash-settled derivative transactions

Class of relevant security	Product description e.g. CFD	Nature of dealing e.g. opening/closing a long/short position, increasing/reducing a long/short position	Number of reference securities (Note 4)	Price per unit (Note 5)
0.01 ordinary shares	CFD	increasing a short position	33	21.4800 USD
0.01 ordinary shares	CFD	increasing a short position	10,955	21.4964 USD

(c)           Stock-settled derivative transactions (including options)

(i)            Writing, selling, purchasing or varying

Class of relevant security	Product description e.g. call option	Writing, purchasing, selling, varying etc.	Number of securities to which option relates (Note 4)	Exercise price per unit	Type  e.g. American, European etc.	Expiry date	Option money paid/ received per unit
N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A

(ii)           Exercise

Class of relevant security	Product description e.g. call option	Exercising/ exercised against	Number of securities	Exercise price per unit (Note 5)
N/A	N/A	N/A	N/A	N/A

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

Class of relevant security	Nature of dealing e.g. subscription, conversion, exercise	Details	Price per unit (if applicable) (Note 5)
N/A	N/A	N/A	N/A

3.             OTHER INFORMATION

(a)           Indemnity and other dealing arrangements

Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the exempt principal trader making the disclosure and any party to the offer or any person acting in concert with a party to the offer: Irrevocable commitments and letters of intent should not be included. If there are no such agreements, arrangements or understandings, state "none"
NONE

(b)           Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated.
NONE

Date of disclosure:	12 January 2026
Contact name:	Claire Gordon
Telephone number:	+44 141 245-8893

Public disclosures under Rule 38 of the Rules must be made to a Regulatory Information Service.

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