UNITIL CORP

Ticker: UTL CUSIP: 913259107 Class: Common Stock

Horizon Investment Services, LLC's Holding History (CIK: 0001426940)

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

Q2 2017

Shares 18,121 Value ($000) $875 Avg Close $47.51 Range $44.70 - $50.47

Q1 2017

Shares 17,446 Value ($000) $786 Avg Close $44.93 Range $43.03 - $46.98

Q4 2016

Shares 17,834 Value ($000) $809 Avg Close $41.73 Range $37.31 - $46.00

Q3 2016

Shares 17,779 Value ($000) $694 Avg Close $41.27 Range $38.00 - $45.16

Q2 2016

Shares 16,760 Value ($000) $715 Avg Close $40.63 Range $35.37 - $42.93

Q1 2016

Shares 15,961 Value ($000) $678 Avg Close $39.04 Range $34.70 - $43.29

Q4 2015

Shares 15,008 Value ($000) $538 Avg Close $35.90 Range $33.75 - $38.75

Q3 2015

Shares 13,104 Value ($000) $483 Avg Close $35.31 Range $32.75 - $37.59

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	18,121	$875	$47.51	$44.70 - $50.47
Q1 2017	17,446	$786	$44.93	$43.03 - $46.98
Q4 2016	17,834	$809	$41.73	$37.31 - $46.00
Q3 2016	17,779	$694	$41.27	$38.00 - $45.16
Q2 2016	16,760	$715	$40.63	$35.37 - $42.93
Q1 2016	15,961	$678	$39.04	$34.70 - $43.29
Q4 2015	15,008	$538	$35.90	$33.75 - $38.75
Q3 2015	13,104	$483	$35.31	$32.75 - $37.59