About MedAx Capital

WEbsite.family.pic.jpg

Sean Michael Murphy, the Founder and Managing Partner of MedAx Capital, has been an entrepreneur in the finance industry for over 25 years. As a teenager, he was one of the youngest licensed securities traders on Wall Street and quickly gained a reputation as an aggressive yet calculated risk taker. In 2011, Mr. Murphy founded First Colonial Group, a boutique investment firm located in midtown Manhattan. In 2018, he successfully exited the firm to become a partner of a multibillion-dollar international investment bank with five offices worldwide. His focus was Reg-A and private equity transactions in the life sciences space.

Possessing a unique skillset with experience in private and public markets, Mr. Murphy has deep knowledge of options, derivatives, and complex investment banking transactions spanning SPACs, Reg-A, private placements, PIPEs, mergers, spin-offs, uplisting, and other restructurings.

Mr. Murphy is a second-generation member of Wall Street; his mother paved the way for not just her family but women as a whole on the floor of the NYSE in 1969. He was born and raised in New York and has spent 27 years living and working in Manhattan. He recently relocated to Dallas, Texas with his wife Corinne and three-year-old twins, Sean and Trinity.

Rules of Engagement


  • We put our clients’ interests first

  • We always take pride in our work

  • We act with conviction after rigorous preparation

  • We maintain transparency in our relationships

  • We live by the highest standards of integrity

  • We foster collaboration through our partnerships

  • We innovate constantly and welcome change

  • We generate credibility through accountability

  • We are bold in action and ideas

  • We communicate with honesty and directness

  • We over-deliver and exceed expectations


  • “I met Sean many years ago and agreed to give him a shot. To his credit I am still a client. Sean is always available, which is helpful since I now live in Thailand, but most of the time he is the one calling me to give updates. Service second to none.”*

    - T. Grimm, CEO, Renewable Energy Co., Bangkok, Thailand

  • “I have been working with Sean and he is very easy to get a hold of and always there for me. He never makes me feel like I should not contact him for any reason even if it is a holiday or an off hour. He advises me on all my projects even if they are not related to investments I am working on with him. I always feel I have a friend and advisor that is protecting my interests in everything.”

    - Dr. Jaafar, Pain Specialist, NYC

  • “I have been a client of Sean’s for many years. First and foremost, I have been extremely satisfied with my portfolio performance. In addition to satisfactory returns, I cannot say enough positive comments about Sean's customer service, and the personal attention he gives me. He is always available for a phone call and always keeps his word on sending the research that I request, usually in less than an hour. In addition, over the years, he and I have become quite friendly. He is extremely friendly, approachable, and he even takes time to teach my 14-year-old son about finance. And finally, I have never felt pressured to invest in anything I was not comfortable with. As a mostly self-directed and sophisticated retail investor, I very much value Sean’s input, his experience, and his expertise.” *

    - Dr. Silverberg, Surgeon, NYC

  • “As a long-term client, I’ve been extremely impressed with Sean’s dedication and passion since the beginning of our relationship. Fresh ideas are always presented in an articulate and digestible manner. Most importantly, he’s knowledgeable and remarkably accessible.”*

    - C.Neff CEO, Health & Wellness CO., LA

  • “I have worked with Sean Murphy for several years and have experience with other money managers as well. Sean is the best. He is always available or, at least, quick to return my calls. He promotes investment ideas but does not push them. He has always listened to me and we trade ideas on investments and the market in general.” *

    - B. Franklin, Private Investor, NY

  • “I am pleased and honored to comment on my relationship with Sean Murphy. His service has been outstanding, and he is readily accessible even on the weekends. He always returns calls regardless of if they are during office hours or after. His research supports every recommendation he has ever made to me. I feel very comfortable and confident in working with him.”*

    - R. Clauss, Attorney, IA