iSAM Securities lures Sam Johnson after 14 years at UBS
FCA-regulated prime brokerage and execution venue iSAM Securities has appointed Sam Johnson as the new global head of sales. His appointment comes after an accomplished 14-year career at UBS, where he accrued a deep understanding of various aspects of the finance industry.

Over the course of his career, Johnson has worked in various roles within the financial industry, gaining experience in repo trading, credit trading, macro product focus, and electronic trading, among others.
His journey began at UBS at the Repo Trading desk in Zurich, where he embarked on his professional career. After a short stint there, he relocated to London in 2012, joining the Credit Trading team. For the next five years, he managed the Senior Financial books within the team.
In 2017, Johnson shifted his focus to ‘macro’ products, making a transition to the Voice G10 spot trading desk. Here, he lent his support to the Precious Metals business and took charge of the commodity-currency sector.
Commenting on his appointment, Sam Johnson said: “This is a rare and profoundly exciting opportunity for me to join a firm at an exciting time in its history, as it seeks to give its ambition the space and resource it needs to flourish. I’m excited to see where we can go from here.”
In his new role at iSAM Securities, he will contribute to the firm’s growth and leverage his expertise in sales and trading to deepen existing expertise and expand services to clients previously out of reach.
“While we’re busy working on the next generation of products for clients we’re simultaneously providing our Sales and Client Service teams with a similarly advanced set of tooling to enable and empower them to deepen client trust and be alive to the developing market thematics,” he added.
Per his Linkedin profile, Johnson enrolled in a Data Science apprenticeship program offered by UBS, which then led him to join the UBS EFX Trading team in 2019. Over time, he rose through the ranks to lead the London office and became the firm’s Subject Matter Expert (SME) on FX fixings. He also managed the electronic precious metals franchise.
iS Prime was in the news recently after its co-founders Raj Sitlani and Jonathan Brewer left the business they established back in 2014. The move came shortly after ISAM Capital Markets, which includes IS Prime Limited (FCA), IS Prime Hong Kong Limited (SFC), IS Risk Analytics Inc (CFTC) and IS Prime Markets Limited (CIMA), has become iSAM Securities to reflect the culmination of its extensive business transformation.