GlenArrow Partners
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Who We Are

Ari Gross

Mark Rosenfeld

Mark Rosenfeld

Ari began his career at Initial Corp., a leading real estate firm in Toronto, where he developed a strong foundation in analyzing markets and identifying value in tangible assets. 


From there, he joined Bryant Street Capital Management, a fund focused on management engagement and companies undergoing strategic transformations. His work centered on evaluating businesses in transition and identifying levers to unlock long-term shareholder value.


He then advanced to Velocity Research, an activist hedge fund, where he deepened his expertise in financial analysis and corporate strategy. At Velocity, he worked closely on situations that required both operational improvements and financial restructuring, sharpening his ability to spot inefficiencies and propose actionable solutions.


Across these roles, Ari has cultivated the ability to dig deep into a company’s financials, uncover overlooked opportunities, and bring out true value, both operationally and financially. This combination of real estate, private capital, and activist investing experience, has given him a unique perspective on value creation across industries.

Mark Rosenfeld

Mark Rosenfeld

Mark Rosenfeld

Mark graduated Summa Cum Laude from Excelsior University with a B.S. in Business, where he built a strong foundation in finance and management.


He began his career at Broad Arrow Holdings, where he was exposed to investments and operations across a wide range of businesses. He then went on to gain hands-on experience managing Hide and Seat, a wholesale venture, before moving into compliance work at BCompliant in New York. Each of these roles gave him a different perspective on how companies grow, adapt, and operate within both market and regulatory frameworks.


He later joined BNH Ventures, a private equity firm, where he worked on evaluating acquisition opportunities and deepening his skills in financial analysis and business assessment.


Through these experiences, Mark has developed a broad perspective on business and an ability to contribute across both investment and operational areas. 


At GlenArrow, he draws on this foundation to support the firm’s work in identifying opportunities and building long-term value.

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