Final answer:
A stock distribution of one common share for every common share owned by shareholders is nontaxable to the shareholder.
Step-by-step explanation:
A stock distribution of one common share for every common share owned by shareholders would be nontaxable to the shareholder. This is known as a stock split, where the number of shares increases but the value per share decreases. The shareholder's ownership percentage in the company remains the same, but they now have more shares.