Convertible Notes Convertible Notes Issue Date Security Outstanding Principal1 Maturity Date CUSIP Conversion Ratio2 Date Last Changed 4/11/2017 4.950% Senior Convertible Notes due 2022 $228,820,000 7/15/2022 74348TAR3 100.2305 4/11/2017 3/1/2019 6.375% Senior Convertible Notes due 2025 $201,250,000 3/1/2025 74348TAT9 110.7420 3/1/2019 1As of 6/30/2020 and as adjusted for a tender offer settled on 8/24/2020 in which $29.4 million of the 2022 Convertible Notes were validly tendered and accepted as disclosed in the 6/30/2020 10-K. 2 We do not expect any changes in the conversion ratio for any of the bonds until the dividend rate is increased to over $0.06000 per share per month.