THERMO FISHER SCIENTIFIC INC

Ticker: TMO CUSIP: 883556102 Class: COM

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

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

Q4 2025

Shares 13,681 Value ($000) $7,927 Avg Close $565.16 Range $486.57 - $601.87

Q3 2025

Shares 13,681 Value ($000) $6,636 Avg Close $464.78 Range $402.70 - $501.56

Q2 2025

Shares 13,626 Value ($000) $5,525 Avg Close $417.06 Range $384.82 - $495.18

Q1 2025

Shares 14,335 Value ($000) $7,133 Avg Close $539.78 Range $482.97 - $608.82

Q4 2024

Shares 14,869 Value ($000) $7,735 Avg Close $547.53 Range $491.20 - $617.36

Q3 2024

Shares 16,972 Value ($000) $10,498 Avg Close $589.13 Range $525.78 - $624.81

Q2 2024

Shares 18,114 Value ($000) $10,017 Avg Close $569.75 Range $526.69 - $598.64

Q1 2024

Shares 17,634 Value ($000) $10,249 Avg Close $557.71 Range $524.04 - $600.06

Q4 2023

Shares 19,062 Value ($000) $10,118 Avg Close $480.76 Range $412.73 - $532.66

Q3 2023

Shares 21,481 Value ($000) $10,873 Avg Close $528.90 Range $491.51 - $575.69

Q2 2023

Shares 48,613 Value ($000) $25,364 Avg Close $535.25 Range $494.39 - $588.28

Q1 2023

Shares 150,010 Value ($000) $86,461 Avg Close $558.70 Range $518.14 - $604.43

Q4 2022

Shares 189,430 Value ($000) $104,317 Avg Close $524.96 Range $471.30 - $579.21

Q3 2022

Shares 195,980 Value ($000) $99,399 Avg Close $554.13 Range $500.83 - $604.99

Q2 2022

Shares 198,664 Value ($000) $107,930 Avg Close $544.70 Range $492.89 - $611.86

Q1 2022

Shares 206,639 Value ($000) $122,051 Avg Close $568.16 Range $508.25 - $656.92

Q4 2021

Shares 188,828 Value ($000) $125,994 Avg Close $617.25 Range $545.68 - $664.90

Q3 2021

Shares 232,794 Value ($000) $133,002 Avg Close $542.36 Range $497.26 - $609.86

Q2 2021

Shares 349,428 Value ($000) $176,276 Avg Close $466.00 Range $433.25 - $504.51

Q1 2021

Shares 360,530 Value ($000) $164,539 Avg Close $471.13 Range $427.86 - $519.72

Q4 2020

Shares 357,198 Value ($000) $166,376 Avg Close $462.59 Range $427.16 - $525.38

Q3 2020

Shares 425,484 Value ($000) $187,860 Avg Close $407.40 Range $352.00 - $438.79

Q2 2020

Shares 454,586 Value ($000) $164,715 Avg Close $330.32 Range $266.44 - $358.87

Q1 2020

Shares 458,961 Value ($000) $130,161 Avg Close $310.51 Range $246.54 - $336.98

Q4 2019

Shares 457,299 Value ($000) $148,563 Avg Close $298.40 Range $266.00 - $325.05

Q3 2019

Shares 467,476 Value ($000) $136,162 Avg Close $281.62 Range $262.06 - $300.37

Q2 2019

Shares 454,091 Value ($000) $133,357 Avg Close $270.70 Range $248.84 - $293.42

Q1 2019

Shares 456,640 Value ($000) $124,992 Avg Close $244.42 Range $206.29 - $269.21

Q4 2018

Shares 488,104 Value ($000) $109,233 Avg Close $230.26 Range $204.59 - $249.16

Q3 2018

Shares 488,653 Value ($000) $119,270 Avg Close $225.62 Range $199.95 - $240.42

Q2 2018

Shares 481,460 Value ($000) $99,730 Avg Close $208.02 Range $195.82 - $217.41

Q1 2018

Shares 29,923 Value ($000) $6,178 Avg Close $205.54 Range $186.40 - $221.70

Q4 2017

Shares 30,211 Value ($000) $5,736 Avg Close $187.44 Range $177.57 - $196.84

Q3 2017

Shares 30,211 Value ($000) $5,716 Avg Close $177.07 Range $166.25 - $189.94

Q2 2017

Shares 30,161 Value ($000) $5,262 Avg Close $164.09 Range $148.20 - $172.95

Q1 2017

Shares 30,671 Value ($000) $4,711 Avg Close $149.18 Range $136.61 - $157.89

Q4 2016

Shares 413,116 Value ($000) $58,291 Avg Close $143.74 Range $135.56 - $156.06

Q3 2016

Shares 464,371 Value ($000) $73,863 Avg Close $150.09 Range $139.26 - $156.47

Q2 2016

Shares 586,384 Value ($000) $86,644 Avg Close $143.61 Range $136.38 - $150.60

Q1 2016

Shares 662,396 Value ($000) $93,789 Avg Close $130.26 Range $116.37 - $138.34

Q4 2015

Shares 728,429 Value ($000) $103,328 Avg Close $129.50 Range $116.40 - $139.59

Q3 2015

Shares 649,984 Value ($000) $79,480 Avg Close $126.34 Range $113.67 - $136.94

Q2 2015

Shares 708,752 Value ($000) $91,968 Avg Close $126.27 Range $121.29 - $130.90

Q1 2015

Shares 906,853 Value ($000) $121,827 Avg Close $124.72 Range $117.56 - $134.63

Q4 2014

Shares 924,301 Value ($000) $115,806 Avg Close $117.50 Range $103.69 - $125.37

Q3 2014

Shares 1,813,475 Value ($000) $220,700 Avg Close $117.35 Range $112.28 - $122.75

Q2 2014

Shares 1,854,438 Value ($000) $218,824 Avg Close $113.45 Range $107.95 - $118.89

Q1 2014

Shares 1,977,904 Value ($000) $237,823 Avg Close $114.47 Range $105.00 - $122.85

Q4 2013

Shares 2,023,919 Value ($000) $225,363 Avg Close $95.60 Range $86.22 - $107.27

Q3 2013

Shares 2,038,750 Value ($000) $187,871 Avg Close $86.81 Range $81.00 - $91.06

Q2 2013

Shares 2,089,937 Value ($000) $176,871 Avg Close $79.76 Range $72.10 - $85.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,681	$7,927	$565.16	$486.57 - $601.87
Q3 2025	13,681	$6,636	$464.78	$402.70 - $501.56
Q2 2025	13,626	$5,525	$417.06	$384.82 - $495.18
Q1 2025	14,335	$7,133	$539.78	$482.97 - $608.82
Q4 2024	14,869	$7,735	$547.53	$491.20 - $617.36
Q3 2024	16,972	$10,498	$589.13	$525.78 - $624.81
Q2 2024	18,114	$10,017	$569.75	$526.69 - $598.64
Q1 2024	17,634	$10,249	$557.71	$524.04 - $600.06
Q4 2023	19,062	$10,118	$480.76	$412.73 - $532.66
Q3 2023	21,481	$10,873	$528.90	$491.51 - $575.69
Q2 2023	48,613	$25,364	$535.25	$494.39 - $588.28
Q1 2023	150,010	$86,461	$558.70	$518.14 - $604.43
Q4 2022	189,430	$104,317	$524.96	$471.30 - $579.21
Q3 2022	195,980	$99,399	$554.13	$500.83 - $604.99
Q2 2022	198,664	$107,930	$544.70	$492.89 - $611.86
Q1 2022	206,639	$122,051	$568.16	$508.25 - $656.92
Q4 2021	188,828	$125,994	$617.25	$545.68 - $664.90
Q3 2021	232,794	$133,002	$542.36	$497.26 - $609.86
Q2 2021	349,428	$176,276	$466.00	$433.25 - $504.51
Q1 2021	360,530	$164,539	$471.13	$427.86 - $519.72
Q4 2020	357,198	$166,376	$462.59	$427.16 - $525.38
Q3 2020	425,484	$187,860	$407.40	$352.00 - $438.79
Q2 2020	454,586	$164,715	$330.32	$266.44 - $358.87
Q1 2020	458,961	$130,161	$310.51	$246.54 - $336.98
Q4 2019	457,299	$148,563	$298.40	$266.00 - $325.05
Q3 2019	467,476	$136,162	$281.62	$262.06 - $300.37
Q2 2019	454,091	$133,357	$270.70	$248.84 - $293.42
Q1 2019	456,640	$124,992	$244.42	$206.29 - $269.21
Q4 2018	488,104	$109,233	$230.26	$204.59 - $249.16
Q3 2018	488,653	$119,270	$225.62	$199.95 - $240.42
Q2 2018	481,460	$99,730	$208.02	$195.82 - $217.41
Q1 2018	29,923	$6,178	$205.54	$186.40 - $221.70
Q4 2017	30,211	$5,736	$187.44	$177.57 - $196.84
Q3 2017	30,211	$5,716	$177.07	$166.25 - $189.94
Q2 2017	30,161	$5,262	$164.09	$148.20 - $172.95
Q1 2017	30,671	$4,711	$149.18	$136.61 - $157.89
Q4 2016	413,116	$58,291	$143.74	$135.56 - $156.06
Q3 2016	464,371	$73,863	$150.09	$139.26 - $156.47
Q2 2016	586,384	$86,644	$143.61	$136.38 - $150.60
Q1 2016	662,396	$93,789	$130.26	$116.37 - $138.34
Q4 2015	728,429	$103,328	$129.50	$116.40 - $139.59
Q3 2015	649,984	$79,480	$126.34	$113.67 - $136.94
Q2 2015	708,752	$91,968	$126.27	$121.29 - $130.90
Q1 2015	906,853	$121,827	$124.72	$117.56 - $134.63
Q4 2014	924,301	$115,806	$117.50	$103.69 - $125.37
Q3 2014	1,813,475	$220,700	$117.35	$112.28 - $122.75
Q2 2014	1,854,438	$218,824	$113.45	$107.95 - $118.89
Q1 2014	1,977,904	$237,823	$114.47	$105.00 - $122.85
Q4 2013	2,023,919	$225,363	$95.60	$86.22 - $107.27
Q3 2013	2,038,750	$187,871	$86.81	$81.00 - $91.06
Q2 2013	2,089,937	$176,871	$79.76	$72.10 - $85.73