Independent outsourced buy-side equity trading platform, Outset Global, has expanded its global trading team with a string of several senior hires from Tourmaline Partners.
Among those joining Outset’s US team is Laurence Bag, who brings more than two decades of global equity trading experience to his new role, with a key focus on equity market structure and multi-cap strategies.
Previously in his career, Bag served as a partner at Tourmaline Partners for 16 years until his departure in August 2025, and has also worked as a trader at Greenwich Prime Trading Group.
Also appointed alongside Bag is Sean Riley, who will serve as a senior trader, working alongside Outset’s global equities and derivatives execution teams.
Prior to his time at Tourmaline, where he served until September 2025, Riley co-founded global hedge fund Glade Brook Capital Partners and has also held various head of trading positions at firms including Shumway Capital and GLG Partners, as well as senior roles at Credit Suisse and Prudential Securities.
In addition, Tim O’Halloran has been appointed to a senior leadership role out Outset, and is set to support the firm in accelerating its US expansion in his new position.
Commenting on his appointment, Raymond McCabe, chief executive of Outset Global, said: “Tim is a highly respected executive with more than 25 years of experience in capital markets and deep expertise in the outsourced trading sector.
“His proven track record in building and scaling successful businesses will be invaluable as we continue our growth trajectory.”
O’Halloran previously worked at Tourmaline for more than eight years, departing in April 2025, and has also held the position of co-president of Westminster Research Associates, which he co-founded in 1993, as well as a vice president in worldwide equities at Lehman Brothers, where he worked for nearly 8 years.
Speaking to The TRADE on the new hires, O’Halloran said: “We continue to see increased demand for our services as asset managers evaluate their operating models and seek scalable, conflict free independent trading solutions. The senior hires strengthen our ability to support that demand and reflect Outset’s commitment to invest further in technology, market structure expertise, and client service.
“We are confident that this announcement reinforces our credibility as a leading trading solutions firm.”
The appointments also follow the recent hire of Jack Markham to Outset’s London team as a managing director, trader in January 2026, after more than a year at Cisu Capital Partners.