JAZZ PHARMACEUTICALS PLC

Ticker: JAZZ CUSIP: G50871105 Class: Common Stock

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

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

Q4 2018

Shares 1,143,835 Value ($000) $141,790 Avg Close $148.35 Range $113.52 - $169.82

Q3 2018

Shares 1,112,735 Value ($000) $187,084 Avg Close $171.98 Range $160.15 - $181.46

Q2 2018

Shares 883,961 Value ($000) $152,306 Avg Close $163.46 Range $145.13 - $184.00

Q1 2018

Shares 1,203,405 Value ($000) $181,702 Avg Close $146.69 Range $132.88 - $159.72

Q4 2017

Shares 1,230,572 Value ($000) $165,697 Avg Close $138.70 Range $128.58 - $151.45

Q3 2017

Shares 1,438,481 Value ($000) $210,378 Avg Close $151.23 Range $139.28 - $162.59

Q2 2017

Shares 1,323,264 Value ($000) $205,768 Avg Close $152.92 Range $139.72 - $163.75

Q1 2017

Shares 1,377,214 Value ($000) $199,875 Avg Close $130.25 Range $109.14 - $148.14

Q4 2016

Shares 1,259,389 Value ($000) $137,311 Avg Close $111.38 Range $95.80 - $126.36

Q3 2016

Shares 1,637,937 Value ($000) $198,977 Avg Close $134.79 Range $117.34 - $153.98

Q2 2016

Shares 1,784,762 Value ($000) $252,205 Avg Close $147.42 Range $129.00 - $160.00

Q1 2016

Shares 2,039,289 Value ($000) $266,229 Avg Close $124.48 Range $108.50 - $139.55

Q4 2015

Shares 2,487,288 Value ($000) $349,613 Avg Close $138.57 Range $117.26 - $151.28

Q3 2015

Shares 2,298,726 Value ($000) $305,294 Avg Close $172.18 Range $121.12 - $194.73

Q2 2015

Shares 2,361,458 Value ($000) $415,782 Avg Close $179.59 Range $165.00 - $191.01

Q1 2015

Shares 2,332,377 Value ($000) $403,011 Avg Close $171.62 Range $155.06 - $190.17

Q4 2014

Shares 1,933,296 Value ($000) $316,539 Avg Close $165.98 Range $137.34 - $183.84

Q3 2014

Shares 1,996,359 Value ($000) $320,535 Avg Close $153.75 Range $131.69 - $176.36

Q2 2014

Shares 1,894,721 Value ($000) $278,543 Avg Close $138.69 Range $120.38 - $156.34

Q1 2014

Shares 1,509,930 Value ($000) $209,397 Avg Close $150.52 Range $123.55 - $176.60

Q4 2013

Shares 238,195 Value ($000) $30,146 Avg Close $103.48 Range $80.40 - $128.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	1,143,835	$141,790	$148.35	$113.52 - $169.82
Q3 2018	1,112,735	$187,084	$171.98	$160.15 - $181.46
Q2 2018	883,961	$152,306	$163.46	$145.13 - $184.00
Q1 2018	1,203,405	$181,702	$146.69	$132.88 - $159.72
Q4 2017	1,230,572	$165,697	$138.70	$128.58 - $151.45
Q3 2017	1,438,481	$210,378	$151.23	$139.28 - $162.59
Q2 2017	1,323,264	$205,768	$152.92	$139.72 - $163.75
Q1 2017	1,377,214	$199,875	$130.25	$109.14 - $148.14
Q4 2016	1,259,389	$137,311	$111.38	$95.80 - $126.36
Q3 2016	1,637,937	$198,977	$134.79	$117.34 - $153.98
Q2 2016	1,784,762	$252,205	$147.42	$129.00 - $160.00
Q1 2016	2,039,289	$266,229	$124.48	$108.50 - $139.55
Q4 2015	2,487,288	$349,613	$138.57	$117.26 - $151.28
Q3 2015	2,298,726	$305,294	$172.18	$121.12 - $194.73
Q2 2015	2,361,458	$415,782	$179.59	$165.00 - $191.01
Q1 2015	2,332,377	$403,011	$171.62	$155.06 - $190.17
Q4 2014	1,933,296	$316,539	$165.98	$137.34 - $183.84
Q3 2014	1,996,359	$320,535	$153.75	$131.69 - $176.36
Q2 2014	1,894,721	$278,543	$138.69	$120.38 - $156.34
Q1 2014	1,509,930	$209,397	$150.52	$123.55 - $176.60
Q4 2013	238,195	$30,146	$103.48	$80.40 - $128.49