Australian Unity has appointed former Optus chief executive Kelly Bayer Rosmarin as its next group managing director and chief executive officer, marking a generational leadership shift at the 185-year-old mutual.
Bayer Rosmarin will formally take the reins on 15 December 2025, after a month-long handover beginning on 5 November with current CEO Rohan Mead. Mead, who announced in March he would retire after more than two decades at the helm, leaves behind a dramatically expanded organisation. Under his stewardship, Australian Unity’s revenue grew from about $400 million to $2.3 billion, while membership doubled to more than 700,000. The workforce swelled from 1,300 to 10,000, reflecting its broadened remit across health insurance, aged care, retirement, disability and financial services.
Bayer Rosmarin’s appointment brings a prominent corporate name back into the spotlight. She led Optus between 2020 and 2023, a period marked by a major cyberattack and a nationwide network outage that drew public criticism and parliamentary scrutiny. She had previously spent 14 years at Commonwealth Bank, where she was considered a frontrunner for the top job in 2018 before the role went to Matt Comyn.
Her career spans senior executive and advisory roles across technology and finance, including board positions at REA Group and Airtel Africa, as well as current advisory work with fintech Airwallex.
Announcing the appointment, Australian Unity chair Lisa Chung said: “A dynamic and adept contemporary business leader, Kelly possesses the values alignment and credentials to advance the Group’s vision of positively impacting the wellbeing of its members, customers, employees and the community.”
Chung also noted the perspective Bayer Rosmarin brings from navigating high-profile corporate challenges, describing her as a leader whose resilience and experience will be valuable in the evolving health and financial services landscape.
For insurance professionals, the change in leadership comes at a time when Australian Unity is seeking to balance its mutual heritage with modernisation pressures. Much of its general insurance portfolio is underwritten by partners such as Allianz, while its health fund competes directly with larger commercial insurers.
The business has also been reshaping its asset management and advice arms, most recently through the sale of its financial advice unit to Fortnum Private Wealth and adjustments within its Healthcare Property Trust.
With Bayer Rosmarin at the helm, industry observers will be watching whether Australian Unity pursues deeper digital transformation, explores further partnerships, or leans into growth through acquisitions—strategies that marked her prior career at CBA and Optus.
In farewelling Mead, Chung acknowledged his role in steering the mutual through the global financial crisis, the COVID-19 pandemic, and more than $1 billion in M&A activity. She said Mead’s legacy lay in extending the organisation’s influence as a purpose-driven enterprise.
Mead himself described his time at the group as “a joy and privilege,” reflecting on the evolution of Australian Unity into a diversified organisation built to meet the wellbeing needs of Australians.
Photo: CeBit Australia, licenced under creative commons NoDerivs 2.0 Generic
