THERMO FISHER SCIENTIFIC INC

Ticker: TMO CUSIP: 883556102 Class: COM

GAMCO INVESTORS, INC. ET AL's Holding History (CIK: 0000807249)

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

Q4 2025

Shares 4,646 Value ($000) $2,692 Avg Close $565.16 Range $486.57 - $601.87

Q3 2025

Shares 5,136 Value ($000) $2,491 Avg Close $464.78 Range $402.70 - $501.56

Q2 2025

Shares 5,286 Value ($000) $2,143 Avg Close $417.06 Range $384.82 - $495.18

Q1 2025

Shares 3,914 Value ($000) $1,948 Avg Close $539.78 Range $482.97 - $608.82

Q4 2024

Shares 4,126 Value ($000) $2,146 Avg Close $547.53 Range $491.20 - $617.36

Q3 2024

Shares 4,277 Value ($000) $2,646 Avg Close $589.13 Range $525.78 - $624.81

Q2 2024

Shares 4,285 Value ($000) $2,370 Avg Close $569.75 Range $526.69 - $598.64

Q1 2024

Shares 4,116 Value ($000) $2,392 Avg Close $557.71 Range $524.04 - $600.06

Q4 2023

Shares 4,026 Value ($000) $2,137 Avg Close $480.76 Range $412.73 - $532.66

Q3 2023

Shares 13,605 Value ($000) $6,886 Avg Close $528.90 Range $491.51 - $575.69

Q2 2023

Shares 17,802 Value ($000) $9,288 Avg Close $535.25 Range $494.39 - $588.28

Q1 2023

Shares 16,263 Value ($000) $9,374 Avg Close $558.70 Range $518.14 - $604.43

Q4 2022

Shares 21,667 Value ($000) $11,932 Avg Close $524.96 Range $471.30 - $579.21

Q3 2022

Shares 25,256 Value ($000) $12,810 Avg Close $554.13 Range $500.83 - $604.99

Q2 2022

Shares 24,653 Value ($000) $13,393 Avg Close $544.70 Range $492.89 - $611.86

Q1 2022

Shares 24,915 Value ($000) $14,716 Avg Close $568.16 Range $508.25 - $656.92

Q4 2021

Shares 36,654 Value ($000) $24,457 Avg Close $617.25 Range $545.68 - $664.90

Q3 2021

Shares 35,363 Value ($000) $20,204 Avg Close $542.36 Range $497.26 - $609.86

Q2 2021

Shares 42,870 Value ($000) $21,627 Avg Close $466.00 Range $433.25 - $504.51

Q1 2021

Shares 42,431 Value ($000) $19,365 Avg Close $471.13 Range $427.86 - $519.72

Q4 2020

Shares 46,063 Value ($000) $21,455 Avg Close $462.59 Range $427.16 - $525.38

Q3 2020

Shares 53,677 Value ($000) $23,699 Avg Close $407.40 Range $352.00 - $438.79

Q2 2020

Shares 51,452 Value ($000) $18,643 Avg Close $330.32 Range $266.44 - $358.87

Q1 2020

Shares 53,937 Value ($000) $15,297 Avg Close $310.51 Range $246.54 - $336.98

Q4 2019

Shares 51,751 Value ($000) $16,812 Avg Close $298.40 Range $266.00 - $325.05

Q3 2019

Shares 52,041 Value ($000) $15,158 Avg Close $281.62 Range $262.06 - $300.37

Q2 2019

Shares 49,854 Value ($000) $14,641 Avg Close $270.70 Range $248.84 - $293.42

Q1 2019

Shares 50,441 Value ($000) $13,807 Avg Close $244.42 Range $206.29 - $269.21

Q4 2018

Shares 46,204 Value ($000) $10,340 Avg Close $230.26 Range $204.59 - $249.16

Q3 2018

Shares 46,179 Value ($000) $11,271 Avg Close $225.62 Range $199.95 - $240.42

Q2 2018

Shares 44,296 Value ($000) $9,175 Avg Close $208.02 Range $195.82 - $217.41

Q1 2018

Shares 44,559 Value ($000) $9,200 Avg Close $205.54 Range $186.40 - $221.70

Q4 2017

Shares 45,275 Value ($000) $8,597 Avg Close $187.44 Range $177.57 - $196.84

Q3 2017

Shares 49,030 Value ($000) $9,276 Avg Close $177.07 Range $166.25 - $189.94

Q2 2017

Shares 42,965 Value ($000) $7,496 Avg Close $164.09 Range $148.20 - $172.95

Q1 2017

Shares 28,825 Value ($000) $4,428 Avg Close $149.18 Range $136.61 - $157.89

Q4 2016

Shares 29,220 Value ($000) $4,123 Avg Close $143.74 Range $135.56 - $156.06

Q3 2016

Shares 27,345 Value ($000) $4,349 Avg Close $150.09 Range $139.26 - $156.47

Q2 2016

Shares 32,545 Value ($000) $4,809 Avg Close $143.61 Range $136.38 - $150.60

Q1 2016

Shares 32,720 Value ($000) $4,633 Avg Close $130.26 Range $116.37 - $138.34

Q4 2015

Shares 16,165 Value ($000) $2,293 Avg Close $129.50 Range $116.40 - $139.59

Q3 2015

Shares 16,450 Value ($000) $2,012 Avg Close $126.34 Range $113.67 - $136.94

Q2 2015

Shares 26,450 Value ($000) $3,432 Avg Close $126.27 Range $121.29 - $130.90

Q1 2015

Shares 23,315 Value ($000) $3,132 Avg Close $124.72 Range $117.56 - $134.63

Q4 2014

Shares 13,000 Value ($000) $1,629 Avg Close $117.50 Range $103.69 - $125.37

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,646	$2,692	$565.16	$486.57 - $601.87
Q3 2025	5,136	$2,491	$464.78	$402.70 - $501.56
Q2 2025	5,286	$2,143	$417.06	$384.82 - $495.18
Q1 2025	3,914	$1,948	$539.78	$482.97 - $608.82
Q4 2024	4,126	$2,146	$547.53	$491.20 - $617.36
Q3 2024	4,277	$2,646	$589.13	$525.78 - $624.81
Q2 2024	4,285	$2,370	$569.75	$526.69 - $598.64
Q1 2024	4,116	$2,392	$557.71	$524.04 - $600.06
Q4 2023	4,026	$2,137	$480.76	$412.73 - $532.66
Q3 2023	13,605	$6,886	$528.90	$491.51 - $575.69
Q2 2023	17,802	$9,288	$535.25	$494.39 - $588.28
Q1 2023	16,263	$9,374	$558.70	$518.14 - $604.43
Q4 2022	21,667	$11,932	$524.96	$471.30 - $579.21
Q3 2022	25,256	$12,810	$554.13	$500.83 - $604.99
Q2 2022	24,653	$13,393	$544.70	$492.89 - $611.86
Q1 2022	24,915	$14,716	$568.16	$508.25 - $656.92
Q4 2021	36,654	$24,457	$617.25	$545.68 - $664.90
Q3 2021	35,363	$20,204	$542.36	$497.26 - $609.86
Q2 2021	42,870	$21,627	$466.00	$433.25 - $504.51
Q1 2021	42,431	$19,365	$471.13	$427.86 - $519.72
Q4 2020	46,063	$21,455	$462.59	$427.16 - $525.38
Q3 2020	53,677	$23,699	$407.40	$352.00 - $438.79
Q2 2020	51,452	$18,643	$330.32	$266.44 - $358.87
Q1 2020	53,937	$15,297	$310.51	$246.54 - $336.98
Q4 2019	51,751	$16,812	$298.40	$266.00 - $325.05
Q3 2019	52,041	$15,158	$281.62	$262.06 - $300.37
Q2 2019	49,854	$14,641	$270.70	$248.84 - $293.42
Q1 2019	50,441	$13,807	$244.42	$206.29 - $269.21
Q4 2018	46,204	$10,340	$230.26	$204.59 - $249.16
Q3 2018	46,179	$11,271	$225.62	$199.95 - $240.42
Q2 2018	44,296	$9,175	$208.02	$195.82 - $217.41
Q1 2018	44,559	$9,200	$205.54	$186.40 - $221.70
Q4 2017	45,275	$8,597	$187.44	$177.57 - $196.84
Q3 2017	49,030	$9,276	$177.07	$166.25 - $189.94
Q2 2017	42,965	$7,496	$164.09	$148.20 - $172.95
Q1 2017	28,825	$4,428	$149.18	$136.61 - $157.89
Q4 2016	29,220	$4,123	$143.74	$135.56 - $156.06
Q3 2016	27,345	$4,349	$150.09	$139.26 - $156.47
Q2 2016	32,545	$4,809	$143.61	$136.38 - $150.60
Q1 2016	32,720	$4,633	$130.26	$116.37 - $138.34
Q4 2015	16,165	$2,293	$129.50	$116.40 - $139.59
Q3 2015	16,450	$2,012	$126.34	$113.67 - $136.94
Q2 2015	26,450	$3,432	$126.27	$121.29 - $130.90
Q1 2015	23,315	$3,132	$124.72	$117.56 - $134.63
Q4 2014	13,000	$1,629	$117.50	$103.69 - $125.37