I'm new to all this so bear with me please. My question is this...

I'm new to all this so bear with me please. My question is this "When/if NXR forms a new company, is it likely that my number of existing shares will decrease in number but be worth the same amount of money?" As an example, many years ago, in the UK I bought shares in a managed tech fund. It looked great on paper, several thousand shares. Then the tech fund was taken over by another entity and my several thousand shares became several hundred shares overnight. Can't recall the specifics but something like 850 shares at 3 quid each after the takeover. So a few pence increase on 850 shares at 3 quid a share is far less profit than a few pence increase on thousands of shares at price of a 25p (for example)- right? I don't know whether to top up with NXR now.I know I have to do my own research and that you are not financial advisers etc etc. Still....thoughts please?