Earlier quoted context omitted.
> did not win or lose anything Is this true? Would there not be dilution?
he s a shareholder too, no? net should be zero
Sure, the company would still be worth $10. But there are now 20 shares outstanding. Everybody except the guy who got 10 shares would see their shares fall in value from $1 to 50 cents.
Basically, issuing stock to one person has the effect, mutatis mutants, of transferring wealth from all the other shareholders to the person who got the new stock.