BioCentury
ARTICLE | Management Tracks

Pfeifer retiring as AC Immune CEO — and more biotech C-suite moves

Nuno Mendonça becomes CMO of Cellular Intelligence; Biocon looks to future

May 15, 2026 11:18 PM UTC

Andrea Pfeifer is retiring as CEO of AC Immune S.A. (NASDAQ:ACIU) after more than 23 years leading the neurology company she co-founded. The Swiss biotech has named her honorary board chair and co-chair of the scientific advisory board. Chairman Martin Zügel will serve as interim CEO as the company searches for Pfeifer’s successor.

Meanwhile, former AC Immune CMO Nuno Mendonça has taken on the CMO job at Boston biotech Cellular Intelligence, which acquired a Parkinson’s disease cell therapy from Novo Nordisk A/S (CSE:NOVO B; NYSE:NVO) this week to move from model-building into the clinic...