John Meckfessel

Overview

John Meckfessel holds the position of Senior Vice President, Head of Commercial and Market Access at Menarini Stemline as of January 2026[1][2]. Meckfessel previously served at Menarini Stemline as Vice President, Head of Marketing from October 2024 to February 2026[3] and as Vice President, Head of Leukemia Franchise from October 2022 to October 2024[4]. Earlier career roles included Senior Director Marketing for AML at Jazz Pharmaceuticals[5], Global Marketing Director at Amgen[6], Director of Global Strategic Marketing at Johnson & Johnson[7], and Director of Marketing for Myeloma at Celgene[8]. Meckfessel earned a Bachelor of Science in Business Administration and Economics from Saint Mary's College of California between 1991 and 1995[10] and an MBA in Business Administration and Management from California State University-Dominguez Hills between 1998 and 2000[11].

Career history

1. Senior Vice President, Head of Commercial and Market AccessJan 2026 to presentMenarini Stemline
2. Vice President, Head of MarketingOct 2024 to Feb 2026Menarini Stemline
3. Vice President, Head of Leukemia FranchiseOct 2022 to Oct 2024Menarini Stemline
4. Senior Director Marketing - AMLApr 2020 to Sep 2022Jazz Pharmaceuticals
5. Global Marketing DirectorAug 2016 to Dec 2019Amgen
6. Director, Global Strategic MarketingJul 2012 to Aug 2016Johnson & Johnson
7. Director of Marketing - MyelomaNov 2010 to Jul 2012Celgene
8. District Sales Mananger - New York City DistrictJan 2009 to Nov 2010Celgene Corporation

Education

1. SMBachelor of Science - BS, Business Administration and Economics1991 - 1995Saint Mary's College of California
2. CSMaster of Business Administration (M.B.A.), Business Administration and Management, General1998 - 2000California State University-Dominguez Hills