About
Jinwon Ahn is a Security Analyst at Cook & Bynum Capital Management, LLC, based in New York, NY. He joined the firm in 2025 after completing an internship, and he is tasked with supporting the firm's research team in evaluating global equity opportunities and conducting fundamental analysis for portfolio construction.
Ahn is involved in the identification and analysis of businesses with strong competitive moats, stable cash flows, and high-quality management teams, aligning with Cook & Bynum's long-term, value-driven investment approach. The portfolio he supports includes exposure to both developed and emerging markets, with a focus on companies showing robust revenue growth, high operating margins, and disciplined capital allocation, particularly within sectors benefiting from sustainable competitive advantages.
Having lived on four continents and originally from Seoul, Korea, Ahn brings a multicultural perspective to international investments. While specific details about his prior roles and educational background are not publicly disclosed, his rapid progression from intern to analyst at Cook & Bynum suggests a strong analytical skillset and adaptability to cross-market equity research and security selection.
Career History
| Organization | Role | Date Range | Details | 
|---|---|---|---|
| Cook & Bynum Capital Management | Summer Analyst | Jun 2024 to Aug 2024 | — | 
| Apollo Belstar | Summer Analyst | Jul 2023 to Aug 2023 | •	Provided transaction multiple and valuation analysis for potential lending and acquisition target companies at the Joint Venture between Apollo Global Management and EMP Belstar •	Generated industry... | 
| Beyond Music Partners | Summer Analyst | Jun 2022 to Aug 2022 | •	Performed research and analysis on competitors (market and consumer trends) within the music industry •	Investigated the potential for business expansion and acquisition opportunities in the US and ... | 
| Republic of Korea Army | Administrative Specialist | Dec 2020 to Jun 2022 | •	Administered the enlisted soldiers’ transfer, promotion, discharge, merit, vacation, and disciplinary action •	Selected to serve under the Disease Control and Prevention Agency at Incheon Internatio... | 
| Kearney Korea | Research Assistant | Jun 2020 to Jul 2020 | •	Researched and constructed M&A and expansion strategies for two global Korean semi-conductor companies •	Coordinated with team members to develop potential business expansion and acquisition strateg... | 
| Refuge pNan | Full-time Volunteer and Volunteer | May 2019 to May 2020 | •	Conducted interviews with refugees to document their experience to enable aid, using the information for court, and report to the Office of the United Nations High Commissioner for Human Rights (OHC... | 
Education
Columbia University
Bachelor of Arts - BA, Political Science
2022 — 2024
Dual BA Program Between Columbia University and Sciences PO
Bachelor's degree, Political Science and Government
2018 — 2024
Mercersburg Academy
2014 — 2018
Others at Cook & Bynum Capital Management, LLC (1)
| Name | Role | Location | 
|---|---|---|
| JJack Callahan | Security Analyst | Birmingham, AL , United States |