BUZZ-Krystal Biotech rises after quarterly revenue beat

Drug developer Krystal Biotech's KRYS.O shares rise 9.75% to $171.96

Co posts Q4 rev of $91.1 mln, beating analyst est of $90.5 mln, as per data compiled by LSEG

Co's net income for the quarter was $45.5 million or $1.58 per share, compared with net income of $8.7 million or 31 cents per share a year ago

Stock has risen 40.3% in the past 12 months