Dennison Service Corporation had no treasury stock at the beginning of the year. During January, Dennison purchased 8, 600 shares of treasury stock at $21 per share. In April, Dennison sold 4, 100 of the treasury shares for $25 per share. In August, Dennison sold the remaining treasury shares for $20 per share. Prepare journal entries for the January, April, and August treasury stock transactions. For a compound transaction, if an amount box does not require an entry, leave it blank