Insurance moves: Alliant, Aspen, Mosaic

New roles bolster strategic, underwriting, and advisory capabilities

Insurance moves: Alliant, Aspen, Mosaic

Insurance News

By Kenneth Araullo

Several insurers and brokerages have announced senior leadership appointments aimed at strengthening their strategic, underwriting, and advisory capabilities.

Alliant Americas, Employee Benefits SVPs

Alliant Insurance Services has appointed Andy Oldenburg and Betty Wehmann as senior vice presidents within its Alliant Americas and Employee Benefits Group divisions, respectively, expanding its leadership presence across the Pacific Northwest and Northern California.

Oldenburg, based in Portland, Oregon, brings more than two decades of experience in risk management and alternative risk strategies. His background includes work across general liability, employment practices liability, property, auto, workers’ compensation, and other coverage lines.

He most recently served as a commercial lines agent at a global brokerage and consulting firm. Oldenburg earned a bachelor’s degree in political science from the University of Montana and attended Lewis & Clark Law School. He holds the CRM and CRIS insurance designations.

Wehmann joins Alliant from a national brokerage and consulting firm, where she also served as a senior vice president. She will focus on designing and implementing scalable employee benefits strategies for a national client base.

Her expertise spans multiple funding mechanisms, with an emphasis on cost containment and employee engagement. Wehmann completed her undergraduate education at Misericordia University in Dallas, Pennsylvania.

Wehmann’s appointment also follows another recent expansion for Alliant’s Employee Benefits Group, with Keith Coghlan tapped as a new vice president to support Southeastern US clients.

Aspen Insurance Group CUO

Aspen Insurance Holdings Limited has named John Welch (pictured above) as group chief underwriting officer, effective Aug. 1.

Welch joined Aspen in June 2023 as chief underwriting officer for the reinsurance segment. He brings more than 30 years of executive experience from prior roles at AXA XL and XL Catlin Group.

In his new role, he will report to Christian Dunleavy, group president and CEO of Aspen Bermuda Limited, and will lead the company’s underwriting strategy across all business segments.

A few months ago, Aspen Insurance also promoted Jon Kattman to head of inland marine.

Mosaic advisory board appointments

Mosaic Insurance also announced the expansion of its advisory board, adding three new members with backgrounds in insurance, cybersecurity, and private equity. The board, originally chaired by industry executive Joe Boren, now includes Peter Breitstone, George Hanna, and Tom Kim.

Breitstone operates a consultancy and brokerage that advises large insurers, insurtech startups, private equity firms, and healthcare organizations.

His career includes the creation of one of the first boutique environmental brokerages and advisory roles at companies such as Goji, Zurich North America, and Aon. He holds a law degree from Temple University and is admitted to practice in New York and Washington, D.C.

Hanna has served in executive roles across legal, regulatory, and administrative functions. His recent work includes advising Secureworks during its sale to Sophos.

He previously held senior roles at YP Holdings, Wellmark Blue Cross Blue Shield, and BellSouth Corporation. He earned both his undergraduate and law degrees from the University of Miami in Florida.

Kim recently retired from his position as managing director and global risk manager at KKR. Over his 20-year private equity career, he led the development of insurance platforms supporting over 1,000 deals.

His background also includes roles at Cerberus Capital Management and Aon. Kim holds degrees from the University of Massachusetts Amherst, Loyola Marymount University, and Loyola Law School in Los Angeles.

Last month, Mosaic also bolstered its ranks with the promotion of Yosha DeLong to global engagement officer.

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