SAN MATEO, Calif.--(BUSINESS WIRE)--Hercules Capital, Inc. (NYSE: HTGC) (“Hercules” or the “Company”), today announced that it has closed an upsized underwritten public offering of $350.0 million in aggregate principal amount of 6.000% notes due June 2030 (the “Notes”). The Notes are unsecured and bear interest at a rate of 6.000% per year, payable semiannually, will mature on June 16, 2030 and may be redeemed in whole or in part at any time or from time to time at the Company’s option at par,