Heidrick & Struggles International, Inc. Watch

from 10-K 3 pages On Behalf of Heidrick & Struggles International, Inc. (“HSII” or the “Company”) and Its Board of Directors (The “Board”), I Want to Thank You for Your Longstanding Service to the Company, During Which You Have Demonstrated Tremendous Leadership and Have Made Invaluable Contributions to the Company. We Appreciate Your Willingness to Provide Continued Support and Expertise to the Company as an Advisor, With a Formal Title to Be Mutually Agreed Between You and the Company (For Purposes of This Agreement, “Advisor”). This Letter Agreement (“Agreement”) Supplements the Terms of Your Employment Letter Agreement by and Among You and HSII, Dated as of September 21, 2017 (The “Employment Agreement”) and Sets Forth the Terms of Your Engagement as an Advisor as Follows

from 10-K 11 pages January 23, 2024 Tom Murray

from 10-K 10 pages January 23, 2024 Thomas L. Monahan III

from 10-Q 5 pages Non-Employee Director [Name] Restricted Stock Unit Participation [Address] Agreement

from 10-Q 7 pages Performance Stock Unit Participation [Name] Agreement [Address]

from 10-Q 6 pages Restricted Stock Unit Participation [Name] Agreement [Address]

from 10-Q 5 pages April 25, 2022 Private & Confidential

from 10-Q 5 pages Material contract

from 8-K 15 pages Heidrick & Struggles International, Inc. Management Severance Pay Plan

from 10-Q 12 pages Director and Officer Indemnification Agreement

from 8-K 7 pages Separation Agreement and General Release

from 10-K 9 pages Heidrick & Struggles International, Inc. Management Severance Pay Plan and Summary Plan Description as Amended and Restated Effective December 31, 2020

from 10-Q 3 pages Form of Non-Employee Director Restricted Stock Unit Participation Agreement

from 10-Q 5 pages Form of Performance Stock Unit Participation Agreement

from 10-Q 5 pages Form of Restricted Stock Participation Agreement

from 10-K 4 pages Performance Stock Unit Participation Agreement

from 10-Q 7 pages Performance Stock Unit Participation Agreement

from 8-K 7 pages February 6, 2019 Michael Cullen Address on File With the Company Dear Mike

from 8-K 6 pages December 3, 2018 Sarah Payne Address on File With the Company Dear Sarah

from 10-Q 6 pages Restricted Stock Unit Participation Agreement