Final answer:
In a four-for-one stock split, the number of shares outstanding increases by four times. The par value of the shares does not change in a stock split. In a one-for-five reverse stock split, the number of shares outstanding decreases by five times. The par value of the shares does not change in a reverse stock split.
Step-by-step explanation:
a-1. In a four-for-one stock split, the number of shares outstanding increases by four times. So, if we start with x number of shares, after the split, there will be 4x shares outstanding.
a-2. The par value of the shares does not change in a stock split. So, the new par value per share will remain the same as the old par value, which is $1.
b-1. In a one-for-five reverse stock split, the number of shares outstanding decreases by five times. So, if we start with x number of shares, after the reverse split, there will be x/5 shares outstanding.
b-2. The par value of the shares does not change in a reverse stock split. So, the new par value per share will remain the same as the old par value, which is $1.