ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

Tortoise Investment Management, LLC's Holding History (CIK: 0001599511)

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

Q2 2018

Shares 478 Value ($000) $20 Avg Close $45.54 Range $39.54 - $51.70

Q1 2018

Shares 478 Value ($000) $28 Avg Close $58.50 Range $51.68 - $71.22

Q4 2017

Shares 478 Value ($000) $26 Avg Close $51.03 Range $46.43 - $56.58

Q3 2017

Shares 478 Value ($000) $24 Avg Close $53.48 Range $48.90 - $61.31

Q2 2017

Shares 478 Value ($000) $28 Avg Close $58.09 Range $53.64 - $63.40

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	478	$20	$45.54	$39.54 - $51.70
Q1 2018	478	$28	$58.50	$51.68 - $71.22
Q4 2017	478	$26	$51.03	$46.43 - $56.58
Q3 2017	478	$24	$53.48	$48.90 - $61.31
Q2 2017	478	$28	$58.09	$53.64 - $63.40