IMO, Not really, the voting change was done to accommodate a less than beneficial to shareholders transfer of technology, without taking the company. This is just another step towards that.
Does Materialise have the financial strength to purchase Sigma? If so, their sensors could be sold to most of Materialise clients, right? Stocks at 50 cents, market cap listed at $3 Million. Is the company up for sale? Are they servicing their products, software updates, field service etc?