During the year, the following selected transactions affecting stockholders' equity occurred for Navajo Corporation:

February $1$: Repurchased $160$ shares of the company's common stock at $$20$ cash per share.

July $15$: Sold $80$ of the shares purchased on February $1$ for $$21$ cash per share.

September $1$: Sold $50$ of the shares purchased on February $1$ for $$19$ cash per share.

Prepare the journal entry required for each of the above transactions.