Just months after bringing on Mads Andreassen as Investment Manager, Norwegian fund boutique Sissener AS continues to expand its team with two key additions. The firm has hired Fredrik Thoresen as Portfolio Manager to join its investment team, and Ryan Tolson as Director of International Sales and Distribution to support global client engagement. Both will officially start on September 1st.
“We are pleased to announce two exciting new hires. Both bring extensive and relevant experience from the financial markets, and we look forward to welcoming them on board,” announces the team at Sissener AS. Founded by industry veteran Jan Petter Sissener, who recently turned 70 and has handed over day-to-day leadership to his son and long-time portfolio manager Philippe Sissener, the firm manages the Sissener Canopus hedge fund and also invests in Nordic high-yield bonds. While Jan Petter Sissener remains actively involved, recent hires are part of a broader strategy to strengthen the firm’s investment capabilities and client outreach.
“We are pleased to announce two exciting new hires. Both bring extensive and relevant experience from the financial markets, and we look forward to welcoming them on board.”
Sector Specialists Join Sissener Canopus Team
The new additions strengthen the investment team behind Sissener Canopus, a long/short equity hedge fund known for its discretionary, bottom-up stock-picking strategy. Mads Andreassen, who joined earlier this year, brings extensive experience in healthcare-focused strategies across both long-only and market-neutral formats. Fredrik Thoresen, set to join in September, brings deep sector expertise in technology, media, and telecommunications (TMT).
Thoresen most recently worked in equity portfolio management for the Andenæs family office, combining Nordic exposure with global TMT investments. His prior roles include Portfolio Manager at Storebrand, Equity Analyst focused on TMT at SEB and DNB Markets, and Junior Investment Manager at a tech-focused hedge fund at Sector Asset Management.
Ryan Tolson to Lead Global Sales Efforts
To support the firm’s international expansion, Ryan Tolson will join as Director of International Sales and Distribution. With a career largely based in the United States, Tolson has held roles as a financial advisor at RBC Wealth Management and Franklin Financial Group, and has also worked in sales, marketing, and as a full-service Registered Investment Advisor (RIA) and broker/dealer. Most recently, he served as Head of Financial Partnerships at Esgian, an Oslo-based developer of digital tools and platforms for ESG and emissions analysis in the ocean industries. “I’m looking forward to working with a top-notch team and contributing to the firm’s efforts to expand its investor reach in key markets globally,” says Tolson.
The expansion of both the investment and distribution teams comes amid strong recent performance for Sissener Canopus. The long/short equity fund delivered its second-best monthly return ever in May, posting a gain of 11.4 percent, followed by an additional 5.3 percent in June. This brought the fund’s performance for the first half of 2025 to 10.5 percent. Since its inception in May 2012, the fund has delivered an annualized return of 11.5 percent, driven by its flexible long/short equity approach and active stock selection.
