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Executive management

Implantica’s executive team includes the core management of Obtech Medical AG complemented by an experienced team with a track record of leading publicly listed and healthcare companies.

Peter Forsell

Dr. Peter Forsell – CEO and Founder

  • Successfully developed the adjustable gastric band business at Obtech Medical AG as co-founder and Executive Chairman
  • Specialist in general surgery Karolinska Hospital
  • Inventor of most of Implantica’s devices in the product pipeline
  • Joined Implantica: since Inception

Dr. Forsell was the Executive Chairman of Obtech Medical AG, the team’s previous successful medical technology business which commercialized the SAGB, an adjustable gastric band to treat obesity that Dr. Forsell developed. The total gastric banding market peaked at 42% market share of all obesity surgery.  Dr. Forsell has gained extensive experience during this long journey how to lead and develop a business from inception to a successful global enterprise. Obtech was later sold for a significant amount to a leading healthcare company. As CEO of Implantica, he is focused on guiding Implantica to the next level.


Dr. Forsell is an internationally renowned surgeon and the brain behind Implantica’s decade of patent and development work focusing on how to move advanced technology into the body. He developed Implantica’s wireless energizing and eHealth platforms. He is the inventor and originator of most of Implantica’s products and the large patent portfolio of >1’000 patent cases. This includes RefluxStop™, a device obtaining CE mark after a very successful clinical trial and will cause a potential paradigm shift in the treatment of acid reflux. Dr. Forsell is a specialist in surgery at the Karolinska Hospital, and he obtained his medical degree at the Karolinska Institute in Stockholm, Sweden. He has also studied basic law, tax and finance.


Peter Forsell owns 8,745,364 class A shares and 22,500,000 class B shares in Implantica MediSwiss AG, representing 21,863,410 class A shares and 56,250,000 class B shares in Implantica AG.

Andreas Öhrnberg

Andreas Öhrnberg – CFO

  • Former CFO of Talkpool AG, listed at Nasdaq First North
  • Former VP Finance & Strategy at Swiss Re Group
  • Dual M.Sc. (Stockholm School of Economics, Stockholm University) and is a Chartered Financial Analyst
  • Joined Implantica: 2020

Mr. Öhrnberg has more than 15 years’ experience from senior finance and general management positions. Prior to joining Implantica in 2020, Mr. Öhrnberg served as CFO at Talkpool, a publicly listed technology group domiciled in Switzerland. Previously, Mr. Öhrnberg was Vice President Finance & Strategy at Swiss Re, a global Fortune 500 company. He also co-founded an online platform that was acquired by a public company. Mr. Öhrnberg received a M.Sc. Business Administration at Stockholm School of Economics; and a M.Sc. Computer and Systems Sciences at Stockholm University; holds an ACCA Diploma in International Financial Reporting; and is a Chartered Financial Analyst.

Andreas Öhrnberg has a 5-year share program of 87,169 SDRs.

Stephan Siegenthaler

Stephan Siegenthaler – Chief Strategy Officer

  • Built a global sales organization as former CEO of Obtech Medical AG, commercializing the adjustable gastric band (SAGB)
  • >20 years of industry experience

Stephan Siegenthaler co-developed a gastric band (SAGB) business into a multinational company, which eventually commanded approximately 28 percent of the obesity surgery market outside of the US over a six-year period and was sold to Johnson & Johnson for a significant amount. He focused primarily on building the sales organization, created a large key surgical and hospital network, recruited high-performing sales people and established own sales force in 32 countries.

Mr. Siegenthaler has more than 20 years of industry experience focused on building a large network of key-opinion-leaders as the platform for a multinational sales expansion. Mr. Siegenthaler has been with Implantica since its founding, and was a Rector at the University Lucerne of Applied Sciences and Arts and has a degree in music.

Stephan Siegenthaler owns 360,000 class A shares in Implantica MediSwiss AG.

Nicole Pehrsson

Nicole Pehrsson - VP Operations & IR

  • Former equity research analyst at EFG Bank AG
  • Previous member of the corporate finance teams of JP Morgan and Kidder, Peabody & Co.
  • Joined Implantica: 2016

Nicole Pehrsson joined Implantica in 2016, responsible for Investor relations. Since then she has expanded her role focusing on strategic developments at the company, joining Executive management as VP Operations & IR. Nicole has strong financial experience in equity research and corporate finance, having worked as an equity research analyst at EFG Bank AG, Zurich, and before that as a business developer in the corporate finance team of JP Morgan. She worked as an analyst in corporate finance at Kidder, Peabody & Co. Inc. in Los Angeles and Boston where she focused primarily on healthcare and IT industries. She received a Bachelor of Arts in Economics from UCLA (summa cum laude).


Nicole Pehrsson owns 192,567 shares in Implantica MedSwiss and has a share program in the Company for 42,400 shares vesting over a five year period.