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Alchelyst names three senior leaders after Lyra merger

Thu, 16th Apr 2026 (Yesterday)

Alchelyst has appointed Jeff Dorigan, Karl McDonald and Sinéad O'Sullivan to senior leadership roles following its recent merger with Lyra Client Solutions.

Dorigan joins as Managing Director, Head of US Sales; McDonald as Managing Director, Transformation; and O'Sullivan as Managing Director, Investor Solutions.

The appointments strengthen senior oversight across sales, operations and investor servicing as Alchelyst expands its integrated platform for private markets asset managers during a period of post-merger growth.

Joan Kehoe, Chief Executive Officer of Alchelyst, outlined the rationale for the hires in a statement.

"The addition of these accomplished executives to our leadership team reflects our commitment to building the infrastructure for the next phase of private markets growth," said Kehoe. "Jeff, Karl and Sinéad each bring deep expertise across investor services, operations and commercial strategy, and they will further enhance the depth and breadth of our capabilities as we grow the business and deliver a more unified client experience."

Sales role

Dorigan will oversee the US sales organisation, with responsibility for commercial strategy, business development and revenue across the region. He will play a central role in Alchelyst's effort to broaden its client base in the United States.

Before joining Alchelyst, he spent eight years at Brown Brothers Harriman, most recently as Managing Director for Alternative Fund Services. Earlier in his career, he spent more than a decade at State Street, where he worked in its professional development programme and alternatives solutions business.

His background includes work with global alternative investment managers across closed-ended, open-ended and evergreen fund structures.

Transformation brief

McDonald will lead strategic change initiatives across the business, focusing on operating models, process efficiency and technology transformation.

His role is intended to support the development of infrastructure that can accommodate growth in client activity and internal operations. He will also work on long-term operational improvement across the firm.

McDonald previously served as Global Head of Hedge Fund Operations at BNY, where he led a global organisation of more than 1,100 staff across seven locations. The role included responsibility for client service delivery and operating model change.

Before BNY, he spent nearly 20 years at J.P. Morgan in senior roles spanning product, operations and transformation.

Investor solutions

O'Sullivan will lead the development, scaling and management of the investor solutions platform. Her responsibilities cover investor-facing operations as Alchelyst builds out that part of the business.

She joins from Viking Global Investors, where she served as Director of Investor Services and led that function. Earlier, she spent 15 years at J.P. Morgan, most recently as Head of Investor Relations within the alternatives business, overseeing a global team supporting more than 50 general partners.

Her experience spans investor relations, fund operations and strategic relationship management, which are increasingly important as private markets managers handle larger investor bases and more complex reporting and servicing demands.

New York office

Alongside the executive appointments, Alchelyst has opened a new flagship office in New York at 575 5th Avenue. The site covers nearly 20,000 square feet and has capacity for 100 team members.

The office also includes dedicated client suites for co-development work and workshops. The move forms part of the firm's North American expansion.

The leadership changes and office opening highlight the scale of Alchelyst's post-merger build-out as it positions itself to serve private markets firms across investor solutions and operational infrastructure. The group is bringing together client servicing, transformation and sales under a more unified structure as competition and operational demands increase across the sector.

McDonald's oversight of a 1,100-person global hedge fund operations team and O'Sullivan's experience supporting more than 50 general partners underscore the level of institutional expertise Alchelyst is adding.