iRhythm (Nasdaq: IRTC) + announced today that it closed an offering of senior notes worth gross proceeds of $661.25 million.
The San Francisco-based cardiac monitor maker said earlier this week that it intends to offer $450 million in convertible senior notes. Approximately 17 hours later, it upsized that offering to a base of $575 million.
San Francisco–based iRhythm sold the notes — due 2029 — to qualified institutional buyers. Proceeds include the full exercise of an option to buy up to an additional $86.25 million in notes. The notes will be senior, unsecured obligations of iRhythm, with interest payable semi-annually in arrears. They notes mature on Sept. 1, 2029, unless earlier converted, repurchased or redeemed.
Holders can require iRhythm to repurchase for cash all or a portion of the notes at 100% of their principal amount, plus interest.
The company estimates net proceeds of approxi…