The logic is simple. The scammer Matthias von Hauff stated that in Q4 2018, TokenPay (another proved scam) went from 9.9% shares down to 7.5% after "somebody" invested 2 million euro. If nimiq was a different investor than "somebody" token pay would have been diluted again to a smaller percentage (5%). Which, in fact it didn't happen. Recently, TokenPay made an investment again to increase their dilution from 7.5% back to 9.9%.
No that's just not how it works. When you buy stocks of a bank you are investing into the bank and get shares, but you are not increasing the equity. The money goes to the previous owner of the shares, not the banks equity. This was actually explained by Matthias himself in another tweet:
https://twitter.com/MatthiasHauff/status/1119308337525424128In most countries it is required for a bank to fulfill a certain equity ratio. Thus, banks need to increase equity to serve more customers. This is completely unrelated to investments....