June 9 (Reuters) - Root9b Holdings Inc (RTNB.O) :
* Root9b Holdings Inc - on june 7, co entered into convertible promissory note amendments with existing holders of co's unsecured convertible notes
* Root9b Holdings Inc - note amendments extend maturity date of notes from may 21, 2017 to may 21, 2018 - sec filing
* Root9b Holdings Inc - note amendments increase interest rate from 10 pct per annum to 15 pct per annum
* Root9b Holdings Inc - note amendments reduce price at which unsecured notes may be voluntarily converted from $16.80 per to $8.00 per share
Source text - (http://bit.ly/2r4cKrV) Further company coverage: (RTNB.O)