Fourth Amendment to Office Lease Agreement by and between Grove II LLC and Avadel Management, LLC dated February 1, 2025

THIS FOURTH AMENDMENT TO OFFICE LEASE (this “Fourth Amendment”) is made and entered into as of February 1, 2025 (“Effective Date”) by and between GROVE II LLC, a Missouri limited liability company (“Landlord”), and AVADEL MANAGEMENT, LLC, a Delaware limited liability company.

WHEREAS, Landlord and Eclat Pharmaceuticals, LLC entered into that certain Office Lease (“Office Lease”) dated October 5, 2015 and that certain First Amendment to Office Lease dated March 8, 2016 (“First Amendment”);

WHEREAS, On February 2, 2017, Eclat Pharmaceuticals LLC changed its name from Eclat Pharmaceuticals LLC to Avadel Legacy Pharmaceuticals, LLC;

WHEREAS, on May 5, 2017, Landlord and Avadel Legacy Pharmaceuticals, LLC entered into that Second Amendment to Office Lease dated May 5, 2017 (“Second Amendment”);

WHEREAS, Avadel Legacy Pharmaceuticals, LLC requested that it be permitted to assign the Lease to a related entity, Avadel Management Corporation, and Landlord consented to such assignment;

WHEREAS, Landlord and Avadel Management Corporation entered into that Third Amendment to Office Lease dated March 22, 2018 (“Third Amendment”) (The Office Lease, First Amendment, Second Amendment, and the Third Amendment are, collectively, the “Lease”);

WHEREAS, on or about December 30, 2024, Avadel Management Corporation underwent a conversion from a Delaware corporation to a Delaware limited liability company, Avadel Management, LLC (“Tenant”).

WHEREAS, Landlord and Tenant desire to amend certain provisions of the Lease; and,

NOW, THEREFORE, in consideration of the foregoing premises, the mutual covenants herein contained and each act performed hereunder by the parties, Landlord and Tenant hereby agree and the Lease is hereby further amended by entering into this Fourth Amendment.

1.Amendment to the Lease.

(a)    Leased Premises: Suite 200 of the building located at 16640 Chesterfield Grove Road, Chesterfield, Missouri 63005 (the “Building”).

(b)    Rentable Area: 17,065 rentable square feet.

(c)    Tenant’s Proportionate Share: 50.32%

(d)    Lease Term: The period from the Commencement Date (as applicable) to and including January 31, 2029, unless sooner terminated or otherwise extended, in each event, pursuant to the terms and conditions of this Lease.

(f)    Minimum Annual Rent & Monthly Rental Installment beginning February 1, 2025:

c.Exhibit A to the Lease is hereby deleted and replaced with Exhibit A attached hereto.

d.Section 2 of Exhibit B to the Lease is hereby amended and restated as follows:

2.    Scope of Work. Landlord or its agent will perform the work listed on the attached Schedule 1. All such work shall be performed from Monday through Friday during normal business hours.

2.Miscellaneous.

a.Brokerage Commissions. Landlord and Tenant hereby represent and warrant to each other that it has not dealt with any broker or agent in connection with the negotiation of this transaction and that no brokerage commissions would be due as a result of the execution of this Fourth Amendment. Landlord and Tenant shall indemnify, defend, and hold the other from any and all liability for the breach of this representation and warranty

on its part and shall pay any compensation to any broker or person who may be entitled thereto in connection with this Fourth Amendment.

b.Counterparts. This Amendment may be executed in any number of counterparts, each of which shall be deemed to be an original instrument, but all such counterparts together shall constitute one and the same instrument.

c.Full Force and Effect. Except as specifically amended hereby, all of the terms and conditions of the Lease shall remain in full force and effect, and the same are hereby ratified and confirmed.

IN WITNESS WHEREOF, the parties have caused this Fourth Amendment to be executed on the day and year first written above.

Suite 200

17,065 RSF

a)    CARPET

Furnish and install new carpet tile to replace existing carpet

Carpet tile supplied by Landlord; Minimal patching as required

No flooring in Executive Bath & IT Room;

No border and accent in Reception Area

b)    PAINTING

Remove wall covering @ Reception area

Skim drywall surfaces where VWC was removed Paint:

Drywall surfaces and hollow metal frames

(1) Accent wall per office

Refresh existing doors

No painting in Executive Conference Room (wood) and (2) small rooms and Executive Bath

No work on existing paneled wall surfaces

c)    KITCHEN REPAIR

Furnish and Install:

Drywall

Remove, furnish & install casework throughout

Painting drywall surfaces

Furnish and install:

Vinyl Base

Install sink and dishwasher

d)    CLEAN UP AND SUPERVISION