On August 14, 2017, the Compensation Committee of OM Asset Management plc (the "Company") approved Transition Severance Agreements (each a "TSA" and collectively, the "TSAs") for each of (i) Stephen H. Belgrad, the Company's Executive Vice President and Chief Financial Officer, (ii) Aidan J. Riordan, the Company's Executive Vice President and Head of Affiliate Management and (iii) Christopher Hadley, the Company's Executive Vice President and Chief Talent Officer (each an "Executive" and collectively, the "Executives").

to the TSAs, upon a termination of the Executive's employment by the Company without Cause (as defined in the TSA) or termination by the Executive for Good Reason (as defined in the TSA), and in consideration for and subject to the Executive signing a general waiver and release of claims provided by the Company and ongoing compliance with certain restrictive covenants, the Executive would be entitled to receive (i) continuation of salary and bonus for twelve (12) months, payable in cash, (ii) continuation of health benefits for twelve (12) months, (iii) a pro-rated bonus for the year in which the termination of employment occurs and (iv) continued vesting of the Executive’s time- and performance-based restricted share and restricted share unit awards to their existing vesting schedules.

Any short-term or long-term cash or equity-based incentive award paid to the Executives will be subject to the Clawback Policy adopted by the Company's Board of Directors, as in effect from time to time.

The TSAs contain customary restrictive covenants, including, non-disclosure, non-disparagement, non-interference and a twelve (12) month non-solicitation obligation.

The TSAs shall continue until two (2) years following the commencement of employment by the Company's next new permanent Chief Executive Officer.

About OM Asset Management plc (NYSE:OMAM)

OM Asset Management plc is a multi-boutique asset management company. The Company operates its business through its approximately seven affiliate firms (Affiliates). The Company is an indirect subsidiary of Old Mutual plc, which is an investment, savings, insurance and banking group. The Company’s Affiliates include Acadian Asset Management LLC (Acadian), Barrow, Hanley, Mewhinney & Strauss, LLC (Barrow Hanley), Campbell Global, LLC (Campbell Global), Copper Rock Capital Partners LLC, Heitman LLC, Investment Counselors of Maryland, LLC and Thompson, Siegel & Walmsley LLC. Its affiliates offer a range of products in the United States markets equities and alternative investments, including timber and real estate. Acadian is a manager of global and international equity, fixed income and alternative strategies. Barrow Hanley is an investment manager of the United States, international and global equities, fixed income and a range of balanced investment management strategies.