STERIS PLC

Ticker: STE CUSIP: G8473T100 Class: EQTY

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q1 2021

Shares 621,633 Value ($000) $118,409 Avg Close $177.71 Range $163.40 - $195.14

Q4 2020

Shares 617,569 Value ($000) $117,054 Avg Close $178.36 Range $163.65 - $187.97

Q3 2020

Shares 680,194 Value ($000) $119,843 Avg Close $152.47 Range $140.33 - $169.76

Q2 2020

Shares 707,463 Value ($000) $108,553 Avg Close $144.84 Range $127.15 - $158.69

Q1 2020

Shares 656,414 Value ($000) $91,878 Avg Close $141.94 Range $100.44 - $160.59

Q4 2019

Shares 706,691 Value ($000) $107,714 Avg Close $138.78 Range $129.00 - $147.05

Q3 2019

Shares 698,993 Value ($000) $100,997 Avg Close $141.09 Range $132.56 - $147.84

Q2 2019

Shares 813,999 Value ($000) $121,188 Avg Close $125.82 Range $112.61 - $140.50

Q1 2019

Shares 923,205 Value ($000) $118,198 Avg Close $110.62 Range $94.73 - $121.10

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	621,633	$118,409	$177.71	$163.40 - $195.14
Q4 2020	617,569	$117,054	$178.36	$163.65 - $187.97
Q3 2020	680,194	$119,843	$152.47	$140.33 - $169.76
Q2 2020	707,463	$108,553	$144.84	$127.15 - $158.69
Q1 2020	656,414	$91,878	$141.94	$100.44 - $160.59
Q4 2019	706,691	$107,714	$138.78	$129.00 - $147.05
Q3 2019	698,993	$100,997	$141.09	$132.56 - $147.84
Q2 2019	813,999	$121,188	$125.82	$112.61 - $140.50
Q1 2019	923,205	$118,198	$110.62	$94.73 - $121.10