A company reported a certain stockholders equity on Jan 1 of the current year

common stock, $10, 1,000,000 shares authorized and 400,000 shares issued = $4,000,000

paid in capital in excess of common par = $1,200,000

retained earnings = $1,600,000

total stockholders equity = $6,800,000

what are the journal entries for the transactions related to the company's stock for the current year?

March 1 purchase 10,000 shares of treasury stock for $17 per share

May 5th sold 4000 shares of treasury stock for $16 per share

Oct 12th sold 2,000 shares of treasury stock for $18 per share