Flagstone names CEO as Simon Merchant steps down

Appoints chief operating officer Arman Tahmassebi

Isabel Baxter
clock • 2 min read

Flagstone has appointed Arman Tahmassebi as CEO, succeeding Simon Merchant.

Flagstone confirmed that current CEO Merchant has decided to step down for health reasons. The firm said he will continue to play an active role in the business he co-founded in 2013 as chair of the board and strategic adviser. Tahmassebi joined Flagstone as chief operating officer (COO) in early 2024 and has aimed to strengthen operations, scaling Flagstone's platform and shape the company's long-term strategy. Prior to Flagstone, Tahmassebi spent five years as COO at LendInvest, the AIM-listed property finance lender. Before that, he held senior leadership positions at ETX Cap...

To continue reading this article...

Join Professional Adviser for free

  • Unlimited access to real-time news, industry insights and market intelligence
  • Stay ahead of the curve with spotlights on emerging trends and technologies
  • Receive breaking news stories straight to your inbox in the daily newsletters
  • Make smart business decisions with the latest developments in regulation, investing retirement and protection
  • Members-only access to the editor’s weekly Friday commentary
  • Be the first to hear about our events and awards programmes

Join

 

Already a Professional Adviser member?

Login

More on People

People Moves: Financial adviser rejoins Continuum

People Moves: Financial adviser rejoins Continuum

Based in Basingstoke

Professional Adviser
clock 02 October 2026 • 1 min read
Kate Gannon takes over as next PFS president

Kate Gannon takes over as next PFS president

Has been director on PFS board since February 2005

Jenna Brown
clock 24 September 2026 • 2 min read
FNZ CEO steps down

FNZ CEO steps down

Stephen Welch assumes executive group chair and interim CEO responsibilities

Sophia Panayi
clock 17 September 2026 • 2 min read