They are a non-profit, and they could actually get more subsidies if they moved their headquarters to the EU.
> they prefer to IPO on another market than Swiss
You can publicly list in exchanges despite not being domiciled in the exchange's host country.
For example, Chinese and EU domiciled companies IPOing on the London Stock Exchange (LSE) due to a mix of easier access to liquidity and simplified rules and regulations.
I seem to recall that one of their original selling points was that they were based in Switzerland which does not have data sharing agreements with the US under the Patriot act, unlike the EU.
Cynical view - they prefer to IPO in another market than Swiss, the real reason for the move.