ALKERMES PLC

Ticker: ALKS CUSIP: G01767105 Class: Common Stock

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q2 2022

Shares 183,340 Value ($000) $5,462 Avg Close $28.72 Range $26.14 - $32.79

Q2 2017

Shares 41,640 Value ($000) $2,414 Avg Close $58.09 Range $53.64 - $63.40

Q1 2017

Shares 45,160 Value ($000) $2,642 Avg Close $56.71 Range $51.08 - $62.50

Q4 2016

Shares 43,490 Value ($000) $2,417 Avg Close $53.46 Range $41.93 - $60.74

Q3 2016

Shares 74,805 Value ($000) $3,518 Avg Close $47.55 Range $43.26 - $52.27

Q4 2015

Shares 29,430 Value ($000) $2,336 Avg Close $70.02 Range $54.36 - $80.71

Q3 2015

Shares 30,850 Value ($000) $1,810 Avg Close $66.02 Range $53.01 - $73.33

Q2 2015

Shares 31,850 Value ($000) $2,049 Avg Close $61.20 Range $54.54 - $68.23

Q1 2015

Shares 170,350 Value ($000) $10,386 Avg Close $68.32 Range $57.31 - $75.17

Q4 2014

Shares 59,350 Value ($000) $3,476 Avg Close $50.94 Range $38.49 - $59.69

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	183,340	$5,462	$28.72	$26.14 - $32.79
Q2 2017	41,640	$2,414	$58.09	$53.64 - $63.40
Q1 2017	45,160	$2,642	$56.71	$51.08 - $62.50
Q4 2016	43,490	$2,417	$53.46	$41.93 - $60.74
Q3 2016	74,805	$3,518	$47.55	$43.26 - $52.27
Q4 2015	29,430	$2,336	$70.02	$54.36 - $80.71
Q3 2015	30,850	$1,810	$66.02	$53.01 - $73.33
Q2 2015	31,850	$2,049	$61.20	$54.54 - $68.23
Q1 2015	170,350	$10,386	$68.32	$57.31 - $75.17
Q4 2014	59,350	$3,476	$50.94	$38.49 - $59.69