 Eventbrite Inc. shares are down 10 in premarket trading Wednesday after the online ticketing company announced that it plans to offer 115 million of convertible senior notes that will be due in 2025. The company also anticipates that it will grant those who initially purchase the notes the option to purchase an additional 17.25 million in notes to cover any overallotments. Eventbrite intends to use the proceeds partly for corporate purposes and partly to fund capped call transactions. These capped call transactions are intended to reduce dilution on conversion. Eventbrite shares had gained 22 over the past month as of Tuesdays close, compared with a 9 rise for the SP; 500 . 