Great American Insurance Group Announces Leadership Changes
The Cincinnati-based insurer has promoted three executives as part of a long-term corporate succession planning initiative.
Updated on Oct. 27, 2026 in People

Great American Insurance Group has promoted Jason M. Cohen and Aaron B. Latto to Executive Vice President, and Shawn V. Los to Senior Vice President. These leadership changes arrive alongside the planned future retirements of Michael E. Sullivan and Richard L. Suter.
Why it matters
These appointments are part of an internal succession strategy designed to ensure stable leadership transitions at the insurance firm. The moves allow the company to realign reporting responsibilities as veteran leaders prepare to depart over the coming years.
The firm, which traces its roots back to 1872, has maintained an AM Best rating for 115 years. The current leadership update follows internal processes to manage the departure of existing senior staff.
The players
Jason M. Cohen
He is an executive who was promoted to the position of Executive Vice President at the company.
Aaron B. Latto
He is a long-tenured executive who has been elevated to the role of Executive Vice President.
Shawn V. Los
He is an experienced leader who was promoted to Senior Vice President after previously serving at National Interstate.
Michael E. Sullivan
He is a retiring executive who is scheduled to conclude his tenure with the insurance group in April 2027.
Richard L. Suter
He is an outgoing leader at the company who plans to retire at the end of 2026.
The details
The promotions involve reassignments of oversight and reporting responsibilities for the three executives. Jason M. Cohen, Aaron B. Latto, and Shawn V. Los bring extensive company tenure to their new roles, having joined the organization between 2001 and 2010.
Timeline
Shawn V. Los joined National Interstate in 2001.
Jason M. Cohen joined the company in 2006.
Aaron B. Latto joined the company in 2010.
The leadership promotions were announced on October 27, 2026.
Michael E. Sullivan plans to retire in April 2027.
Market Landscape
This leadership transition follows the pattern of institutional stability established by the company's 115-year AM Best rating history. These shifts reflect a broader industry trend of prioritizing internal succession to maintain market positioning and financial discipline.
For customers and clients, these administrative changes signal ongoing stability in company management. There are no anticipated changes to existing insurance policies or service levels resulting from these internal personnel moves.
The takeaway
Large organizations often utilize multi-year succession planning to prevent leadership vacuums. Employees and stakeholders can view these internal promotions as a sign of institutional focus on long-term continuity.
What happens next
Richard L. Suter plans to retire at the end of 2026, followed by Michael E. Sullivan in April 2027.
Further reading
For more on industry staffing and executive shifts, visit the People section.
Source note: This article includes information reported by InsuranceNewsNet.










