THERMO FISHER SCIENTIFIC INC

Ticker: TMO CUSIP: 883556102 Class: COM

CITADEL ADVISORS LLC's Holding History (CIK: 0001423053)

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

Q4 2025

Shares 690,405 Value ($000) $400,055 Avg Close $565.16 Range $486.57 - $601.87

Q3 2025

Shares 349,701 Value ($000) $169,612 Avg Close $464.78 Range $402.70 - $501.56

Q2 2025

Shares 1,096,823 Value ($000) $444,718 Avg Close $417.06 Range $384.82 - $495.18

Q1 2025

Shares 120,573 Value ($000) $59,997 Avg Close $539.78 Range $482.97 - $608.82

Q4 2024

Shares 339,940 Value ($000) $176,847 Avg Close $547.53 Range $491.20 - $617.36

Q3 2024

Shares 166,186 Value ($000) $102,798 Avg Close $589.13 Range $525.78 - $624.81

Q2 2024

Shares 982,694 Value ($000) $543,430 Avg Close $569.75 Range $526.69 - $598.64

Q1 2024

Shares 100,670 Value ($000) $58,510 Avg Close $557.71 Range $524.04 - $600.06

Q4 2023

Shares 528,875 Value ($000) $280,722 Avg Close $480.76 Range $412.73 - $532.66

Q3 2023

Shares 246,960 Value ($000) $125,004 Avg Close $528.90 Range $491.51 - $575.69

Q2 2023

Shares 125,798 Value ($000) $65,635 Avg Close $535.25 Range $494.39 - $588.28

Q1 2023

Shares 237,715 Value ($000) $137,012 Avg Close $558.70 Range $518.14 - $604.43

Q4 2022

Shares 151,655 Value ($000) $83,515 Avg Close $524.96 Range $471.30 - $579.21

Q3 2022

Shares 30,682 Value ($000) $15,562 Avg Close $554.13 Range $500.83 - $604.99

Q2 2022

Shares 272,684 Value ($000) $148,144 Avg Close $544.70 Range $492.89 - $611.86

Q1 2022

Shares 31,653 Value ($000) $18,696 Avg Close $568.16 Range $508.25 - $656.92

Q4 2021

Shares 23,281 Value ($000) $15,534 Avg Close $617.25 Range $545.68 - $664.90

Q3 2021

Shares 194,105 Value ($000) $110,898 Avg Close $542.36 Range $497.26 - $609.86

Q2 2021

Shares 381,712 Value ($000) $192,562 Avg Close $466.00 Range $433.25 - $504.51

Q1 2021

Shares 226,602 Value ($000) $103,417 Avg Close $471.13 Range $427.86 - $519.72

Q4 2020

Shares 102,030 Value ($000) $47,524 Avg Close $462.59 Range $427.16 - $525.38

Q3 2020

Shares 26,206 Value ($000) $11,570 Avg Close $407.40 Range $352.00 - $438.79

Q2 2020

Shares 38,466 Value ($000) $13,938 Avg Close $330.32 Range $266.44 - $358.87

Q1 2020

Shares 389,143 Value ($000) $110,361 Avg Close $310.51 Range $246.54 - $336.98

Q4 2019

Shares 6,875 Value ($000) $2,233 Avg Close $298.40 Range $266.00 - $325.05

Q3 2019

Shares 16,810 Value ($000) $4,896 Avg Close $281.62 Range $262.06 - $300.37

Q2 2019

Shares 106,251 Value ($000) $31,205 Avg Close $270.70 Range $248.84 - $293.42

Q1 2019

Shares 729,227 Value ($000) $199,604 Avg Close $244.42 Range $206.29 - $269.21

Q4 2018

Shares 226,376 Value ($000) $50,661 Avg Close $230.26 Range $204.59 - $249.16

Q3 2018

Shares 3,401 Value ($000) $830 Avg Close $225.62 Range $199.95 - $240.42

Q2 2018

Shares 978 Value ($000) $203 Avg Close $208.02 Range $195.82 - $217.41

Q1 2018

Shares 514,638 Value ($000) $106,252 Avg Close $205.54 Range $186.40 - $221.70

Q4 2017

Shares 249,101 Value ($000) $47,299 Avg Close $187.44 Range $177.57 - $196.84

Q3 2017

Shares 844,455 Value ($000) $159,771 Avg Close $177.07 Range $166.25 - $189.94

Q2 2017

Shares 144,172 Value ($000) $25,154 Avg Close $164.09 Range $148.20 - $172.95

Q1 2017

Shares 222,120 Value ($000) $34,118 Avg Close $149.18 Range $136.61 - $157.89

Q4 2016

Shares 642,675 Value ($000) $90,682 Avg Close $143.74 Range $135.56 - $156.06

Q3 2016

Shares 2,972 Value ($000) $473 Avg Close $150.09 Range $139.26 - $156.47

Q2 2016

Shares 160,248 Value ($000) $23,678 Avg Close $143.61 Range $136.38 - $150.60

Q4 2015

Shares 780,000 Value ($000) $110,643 Avg Close $129.50 Range $116.40 - $139.59

Q3 2015

Shares 628,273 Value ($000) $76,825 Avg Close $126.34 Range $113.67 - $136.94

Q2 2015

Shares 370,952 Value ($000) $48,135 Avg Close $126.27 Range $121.29 - $130.90

Q1 2015

Shares 377,158 Value ($000) $50,668 Avg Close $124.72 Range $117.56 - $134.63

Q4 2014

Shares 416,794 Value ($000) $52,220 Avg Close $117.50 Range $103.69 - $125.37

Q3 2014

Shares 304,736 Value ($000) $37,087 Avg Close $117.35 Range $112.28 - $122.75

Q2 2014

Shares 143,228 Value ($000) $16,901 Avg Close $113.45 Range $107.95 - $118.89

Q1 2014

Shares 190,829 Value ($000) $22,945 Avg Close $114.47 Range $105.00 - $122.85

Q4 2013

Shares 1,420,013 Value ($000) $158,119 Avg Close $95.60 Range $86.22 - $107.27

Q2 2013

Shares 256,147 Value ($000) $21,677 Avg Close $79.76 Range $72.10 - $85.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	690,405	$400,055	$565.16	$486.57 - $601.87
Q3 2025	349,701	$169,612	$464.78	$402.70 - $501.56
Q2 2025	1,096,823	$444,718	$417.06	$384.82 - $495.18
Q1 2025	120,573	$59,997	$539.78	$482.97 - $608.82
Q4 2024	339,940	$176,847	$547.53	$491.20 - $617.36
Q3 2024	166,186	$102,798	$589.13	$525.78 - $624.81
Q2 2024	982,694	$543,430	$569.75	$526.69 - $598.64
Q1 2024	100,670	$58,510	$557.71	$524.04 - $600.06
Q4 2023	528,875	$280,722	$480.76	$412.73 - $532.66
Q3 2023	246,960	$125,004	$528.90	$491.51 - $575.69
Q2 2023	125,798	$65,635	$535.25	$494.39 - $588.28
Q1 2023	237,715	$137,012	$558.70	$518.14 - $604.43
Q4 2022	151,655	$83,515	$524.96	$471.30 - $579.21
Q3 2022	30,682	$15,562	$554.13	$500.83 - $604.99
Q2 2022	272,684	$148,144	$544.70	$492.89 - $611.86
Q1 2022	31,653	$18,696	$568.16	$508.25 - $656.92
Q4 2021	23,281	$15,534	$617.25	$545.68 - $664.90
Q3 2021	194,105	$110,898	$542.36	$497.26 - $609.86
Q2 2021	381,712	$192,562	$466.00	$433.25 - $504.51
Q1 2021	226,602	$103,417	$471.13	$427.86 - $519.72
Q4 2020	102,030	$47,524	$462.59	$427.16 - $525.38
Q3 2020	26,206	$11,570	$407.40	$352.00 - $438.79
Q2 2020	38,466	$13,938	$330.32	$266.44 - $358.87
Q1 2020	389,143	$110,361	$310.51	$246.54 - $336.98
Q4 2019	6,875	$2,233	$298.40	$266.00 - $325.05
Q3 2019	16,810	$4,896	$281.62	$262.06 - $300.37
Q2 2019	106,251	$31,205	$270.70	$248.84 - $293.42
Q1 2019	729,227	$199,604	$244.42	$206.29 - $269.21
Q4 2018	226,376	$50,661	$230.26	$204.59 - $249.16
Q3 2018	3,401	$830	$225.62	$199.95 - $240.42
Q2 2018	978	$203	$208.02	$195.82 - $217.41
Q1 2018	514,638	$106,252	$205.54	$186.40 - $221.70
Q4 2017	249,101	$47,299	$187.44	$177.57 - $196.84
Q3 2017	844,455	$159,771	$177.07	$166.25 - $189.94
Q2 2017	144,172	$25,154	$164.09	$148.20 - $172.95
Q1 2017	222,120	$34,118	$149.18	$136.61 - $157.89
Q4 2016	642,675	$90,682	$143.74	$135.56 - $156.06
Q3 2016	2,972	$473	$150.09	$139.26 - $156.47
Q2 2016	160,248	$23,678	$143.61	$136.38 - $150.60
Q4 2015	780,000	$110,643	$129.50	$116.40 - $139.59
Q3 2015	628,273	$76,825	$126.34	$113.67 - $136.94
Q2 2015	370,952	$48,135	$126.27	$121.29 - $130.90
Q1 2015	377,158	$50,668	$124.72	$117.56 - $134.63
Q4 2014	416,794	$52,220	$117.50	$103.69 - $125.37
Q3 2014	304,736	$37,087	$117.35	$112.28 - $122.75
Q2 2014	143,228	$16,901	$113.45	$107.95 - $118.89
Q1 2014	190,829	$22,945	$114.47	$105.00 - $122.85
Q4 2013	1,420,013	$158,119	$95.60	$86.22 - $107.27
Q2 2013	256,147	$21,677	$79.76	$72.10 - $85.73