SIENNA BIOPHARMACEUTICALS IN

Ticker: SNNAQ CUSIP: 82622H108 Class: COM

TimesSquare Capital Management, LLC's Holding History (CIK: 0001313816)

Note: Option positions (PUT/CALL) are excluded.

Q1 2018

Shares 360,200 Value ($000) $6,765 Avg Close $17.48 Range $13.37 - $20.99

Q4 2017

Shares 369,500 Value ($000) $6,706 Avg Close $21.15 Range $15.22 - $26.00

Q3 2017

Shares 385,200 Value ($000) $8,571 Avg Close $21.95 Range $18.50 - $29.25

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	360,200	$6,765	$17.48	$13.37 - $20.99
Q4 2017	369,500	$6,706	$21.15	$15.22 - $26.00
Q3 2017	385,200	$8,571	$21.95	$18.50 - $29.25