Michael J. Hennessy Jr. is the Chief Executive Officer (CEO) and President for MJH Life Sciences an independent medical media company in North America – the home of Cancer Network, OncLive, Targeted Oncology, Cure and others. Under his leadership MJH Life Sciences expanded to over 65 brands, acquired BPD Healthcare and UBM Life Sciences Group playing an instrumental role in the company’s continued growth.
Michael has been recognized for his leadership and named a National Finalist for the Entrepreneur Of The Year 2021 by Ernst & Young LLP and recognized as the New Jersey regional winner. Now a trustee of the Mike & Patti Hennessy Foundation he continues to carry his parents’ legacy by being committed to delivering trusted quality medical information to millions around the world.
The 100 Most Influential People in Oncology in 2025 recognizes the changemakers in cancer care who have helped shape current practice in oncology and continue to drive innovation and research towards better outcomes, advocacy, philanthropy, leadership and education. For the many deserving individuals not mentioned in this list, we will continue to acknowledge, honor and elevate your voices in our daily publications from across the world.
See the full list of The 100 Influential People in Oncology in 2025 and stay tuned for the results of special category nominations to be announced.
