Michel Vounatsos and Carl Berg built their careers in very different industries. Vounatsos is a pharmaceutical and biotechnology executive, best known for his leadership at Biogen and two decades at Merck. Berg built his wealth through Silicon Valley real estate and technology investments, including Mission West Properties. Their backgrounds, education, careers, family details and estimated wealth show two distinct paths to senior business success. Vounatsos studied medicine and business, while Berg developed a major commercial real-estate portfolio and invested in technology companies.
Michel Vounatsos and Carl Berg Quick Bio
| Profile | Michel Vounatsos | Carl Berg |
|---|---|---|
| Full Name | Michel Vounatsos | Carl Edwin Berg |
| Date of Birth | 1961 — exact date not publicly confirmed | 1938 — exact date not publicly confirmed |
| Net Worth | Estimated $20–30 million — unofficial estimate | About $1.1 billion historically — Forbes estimate from 2013 |
| Age | Approximately 64–65 years in 2026 | Approximately 88 years in 2026 |
| Birth Place | Reported Casablanca, Morocco | New Mexico, United States |
| Nationality | French | American |
| Profession | Pharmaceutical Executive, Business Leader and Corporate Director | Real Estate Investor, Developer and Venture Capitalist |
| Famous For | Former CEO of Biogen and senior leadership at Merck | Silicon Valley real estate and Mission West Properties |
| Nickname | Not publicly documented / Unverified | Not publicly documented / Unverified |
| Height | Approximately 5 ft 10 in (178 cm) — Estimated | Approximately 5 ft 10 in (178 cm) — Estimated |
| Weight | Approximately 75–80 kg — Estimated | Approximately 75–80 kg — Estimated |
| Hair Color | Dark brown/gray — Reported | Gray/white — Reported |
| Eye Color | Brown — Unverified | Unverified |
| Education | Certificate of Clinical and Therapeutic Synthesis in Medicine, Université Victor Segalen, Bordeaux II; MBA, HEC School of Management, Paris | Bachelor’s degree, University of New Mexico |
| Career Start | Management roles at Ciba-Geigy before a 20-year career at Merck | Loan and mortgage work before moving into Silicon Valley real estate |
| Major Company | Biogen | Mission West Properties / Berg & Berg |
| Biogen Role | CEO from 2017 to 2022 | Not applicable |
| Merck Career | Around 20 years; ultimately President, Primary Care and Customer Centricity | Not applicable |
| Real Estate Career | Not his primary field | Major focus of his business career |
| Technology Investments | Healthcare and biotechnology-focused leadership | Invested in more than 100 technology companies according to historical profiles |
| Mission West | Not associated | Acquired Mission West Properties in 1997 |
| Major Business Deal | Led Biogen during a major period of biotechnology and pharmaceutical development | Mission West assets sold to DivcoWest in 2012 for about $1.3 billion in cash, stock and debt considerations |
| Marital Status | Reported Married | Married |
| Spouse | Martine Vounatsos — Reported | Wife — name not consistently documented in major sources |
| Children | Reported three children | One child / daughter |
| Parents | Not publicly documented | Father was killed in a tunnel cave-in when Berg was young |
| Siblings | Not publicly documented | Brother: Clyde Berg |
| Hobbies | Running/endurance sports — Reported | Not reliably documented |
| No clearly verified personal account identified | No clearly verified personal account identified | |
| Known For Today | Healthcare, biotechnology and corporate board leadership | Private real estate and investment activities |
| Career Highlights | Ciba-Geigy → Merck → Biogen CEO → corporate and advisory boards | Mortgage business → Silicon Valley real estate → Mission West → technology investments |
| Residence | Not publicly confirmed | Atherton, California — Forbes-listed residence |
| Business Sector | Pharmaceuticals, biotechnology and healthcare | Real estate, technology and venture investment |
| Estimated Wealth Source | Executive compensation, investments and long-term pharmaceutical leadership | Commercial real estate, technology investments and private holdings |
Michel Vounatsos and Carl Berg Images
