I don't think this is accurate. When a company buys back shares, the shares are retired increasing the ownership percentage of the remaining shareholders.
It is basically the opposite of issuing shares and diluting existing shareholders.
It is basically the opposite of issuing shares and diluting existing shareholders.
Say the only thing my company owns is a bank account with $100 in it. There are 5 shares outstanding worth $20 each. The company buys back one share for $20, so now there are 4 shares outstanding in a company that owns $80.
The ownership percentage is hidden inside the equity.