THERMO FISHER SCIENTIFIC INC

Ticker: TMO CUSIP: 883556102 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q4 2025

Shares 87,392 Value ($000) $50,639 Avg Close $565.16 Range $486.57 - $601.87

Q3 2025

Shares 90,678 Value ($000) $43,981 Avg Close $464.78 Range $402.70 - $501.56

Q2 2025

Shares 92,583 Value ($000) $37,539 Avg Close $417.06 Range $384.82 - $495.18

Q1 2025

Shares 87,473 Value ($000) $43,527 Avg Close $539.78 Range $482.97 - $608.82

Q4 2024

Shares 81,331 Value ($000) $42,311 Avg Close $547.53 Range $491.20 - $617.36

Q3 2024

Shares 83,157 Value ($000) $51,438 Avg Close $589.13 Range $525.78 - $624.81

Q2 2024

Shares 83,844 Value ($000) $46,366 Avg Close $569.75 Range $526.69 - $598.64

Q1 2024

Shares 84,820 Value ($000) $49,298 Avg Close $557.71 Range $524.04 - $600.06

Q4 2023

Shares 84,610 Value ($000) $44,910 Avg Close $480.76 Range $412.73 - $532.66

Q3 2023

Shares 77,602 Value ($000) $39,280 Avg Close $528.90 Range $491.51 - $575.69

Q2 2023

Shares 67,271 Value ($000) $35,099 Avg Close $535.25 Range $494.39 - $588.28

Q1 2023

Shares 66,487 Value ($000) $38,321 Avg Close $558.70 Range $518.14 - $604.43

Q4 2022

Shares 66,294 Value ($000) $37 Avg Close $524.96 Range $471.30 - $579.21

Q3 2022

Shares 57,307 Value ($000) $29,066 Avg Close $554.13 Range $500.83 - $604.99

Q2 2022

Shares 56,997 Value ($000) $30,965 Avg Close $544.70 Range $492.89 - $611.86

Q1 2022

Shares 52,725 Value ($000) $31,142 Avg Close $568.16 Range $508.25 - $656.92

Q4 2021

Shares 49,460 Value ($000) $33,002 Avg Close $617.25 Range $545.68 - $664.90

Q3 2021

Shares 49,302 Value ($000) $28,168 Avg Close $542.36 Range $497.26 - $609.86

Q2 2021

Shares 49,242 Value ($000) $24,841 Avg Close $466.00 Range $433.25 - $504.51

Q1 2021

Shares 49,251 Value ($000) $22,477 Avg Close $471.13 Range $427.86 - $519.72

Q4 2020

Shares 49,523 Value ($000) $23,067 Avg Close $462.59 Range $427.16 - $525.38

Q3 2020

Shares 36,653 Value ($000) $16,183 Avg Close $407.40 Range $352.00 - $438.79

Q2 2020

Shares 22,584 Value ($000) $8,183 Avg Close $330.32 Range $266.44 - $358.87

Q1 2020

Shares 25,618 Value ($000) $7,265 Avg Close $310.51 Range $246.54 - $336.98

Q4 2019

Shares 25,822 Value ($000) $8,389 Avg Close $298.40 Range $266.00 - $325.05

Q3 2019

Shares 25,662 Value ($000) $7,475 Avg Close $281.62 Range $262.06 - $300.37

Q2 2019

Shares 23,482 Value ($000) $6,896 Avg Close $270.70 Range $248.84 - $293.42

Q1 2019

Shares 23,536 Value ($000) $6,442 Avg Close $244.42 Range $206.29 - $269.21

Q4 2018

Shares 21,962 Value ($000) $4,915 Avg Close $230.26 Range $204.59 - $249.16

Q3 2018

Shares 33,054 Value ($000) $8,068 Avg Close $225.62 Range $199.95 - $240.42

Q2 2018

Shares 42,116 Value ($000) $8,724 Avg Close $208.02 Range $195.82 - $217.41

Q1 2018

Shares 35,952 Value ($000) $7,423 Avg Close $205.54 Range $186.40 - $221.70

Q4 2017

Shares 35,868 Value ($000) $6,811 Avg Close $187.44 Range $177.57 - $196.84

Q3 2017

Shares 32,548 Value ($000) $6,158 Avg Close $177.07 Range $166.25 - $189.94

Q2 2017

Shares 29,065 Value ($000) $5,071 Avg Close $164.09 Range $148.20 - $172.95

Q1 2017

Shares 28,959 Value ($000) $4,448 Avg Close $149.18 Range $136.61 - $157.89

Q4 2016

Shares 22,645 Value ($000) $3,195 Avg Close $143.74 Range $135.56 - $156.06

Q3 2016

Shares 22,518 Value ($000) $3,582 Avg Close $150.09 Range $139.26 - $156.47

Q2 2016

Shares 31,508 Value ($000) $4,656 Avg Close $143.61 Range $136.38 - $150.60

Q1 2016

Shares 29,406 Value ($000) $4,164 Avg Close $130.26 Range $116.37 - $138.34

Q4 2015

Shares 26,075 Value ($000) $3,699 Avg Close $129.50 Range $116.40 - $139.59

Q3 2015

Shares 25,603 Value ($000) $3,131 Avg Close $126.34 Range $113.67 - $136.94

Q2 2015

Shares 44,699 Value ($000) $5,800 Avg Close $126.27 Range $121.29 - $130.90

Q1 2015

Shares 45,519 Value ($000) $6,115 Avg Close $124.72 Range $117.56 - $134.63

Q4 2014

Shares 72,989 Value ($000) $9,145 Avg Close $117.50 Range $103.69 - $125.37

Q3 2014

Shares 73,164 Value ($000) $8,904 Avg Close $117.35 Range $112.28 - $122.75

Q2 2014

Shares 73,067 Value ($000) $8,622 Avg Close $113.45 Range $107.95 - $118.89

Q1 2014

Shares 75,064 Value ($000) $9,026 Avg Close $114.47 Range $105.00 - $122.85

Q4 2013

Shares 68,973 Value ($000) $7,680 Avg Close $95.60 Range $86.22 - $107.27

Q3 2013

Shares 73,628 Value ($000) $6,785 Avg Close $86.81 Range $81.00 - $91.06

Q2 2013

Shares 73,085 Value ($000) $6,185 Avg Close $79.76 Range $72.10 - $85.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	87,392	$50,639	$565.16	$486.57 - $601.87
Q3 2025	90,678	$43,981	$464.78	$402.70 - $501.56
Q2 2025	92,583	$37,539	$417.06	$384.82 - $495.18
Q1 2025	87,473	$43,527	$539.78	$482.97 - $608.82
Q4 2024	81,331	$42,311	$547.53	$491.20 - $617.36
Q3 2024	83,157	$51,438	$589.13	$525.78 - $624.81
Q2 2024	83,844	$46,366	$569.75	$526.69 - $598.64
Q1 2024	84,820	$49,298	$557.71	$524.04 - $600.06
Q4 2023	84,610	$44,910	$480.76	$412.73 - $532.66
Q3 2023	77,602	$39,280	$528.90	$491.51 - $575.69
Q2 2023	67,271	$35,099	$535.25	$494.39 - $588.28
Q1 2023	66,487	$38,321	$558.70	$518.14 - $604.43
Q4 2022	66,294	$37	$524.96	$471.30 - $579.21
Q3 2022	57,307	$29,066	$554.13	$500.83 - $604.99
Q2 2022	56,997	$30,965	$544.70	$492.89 - $611.86
Q1 2022	52,725	$31,142	$568.16	$508.25 - $656.92
Q4 2021	49,460	$33,002	$617.25	$545.68 - $664.90
Q3 2021	49,302	$28,168	$542.36	$497.26 - $609.86
Q2 2021	49,242	$24,841	$466.00	$433.25 - $504.51
Q1 2021	49,251	$22,477	$471.13	$427.86 - $519.72
Q4 2020	49,523	$23,067	$462.59	$427.16 - $525.38
Q3 2020	36,653	$16,183	$407.40	$352.00 - $438.79
Q2 2020	22,584	$8,183	$330.32	$266.44 - $358.87
Q1 2020	25,618	$7,265	$310.51	$246.54 - $336.98
Q4 2019	25,822	$8,389	$298.40	$266.00 - $325.05
Q3 2019	25,662	$7,475	$281.62	$262.06 - $300.37
Q2 2019	23,482	$6,896	$270.70	$248.84 - $293.42
Q1 2019	23,536	$6,442	$244.42	$206.29 - $269.21
Q4 2018	21,962	$4,915	$230.26	$204.59 - $249.16
Q3 2018	33,054	$8,068	$225.62	$199.95 - $240.42
Q2 2018	42,116	$8,724	$208.02	$195.82 - $217.41
Q1 2018	35,952	$7,423	$205.54	$186.40 - $221.70
Q4 2017	35,868	$6,811	$187.44	$177.57 - $196.84
Q3 2017	32,548	$6,158	$177.07	$166.25 - $189.94
Q2 2017	29,065	$5,071	$164.09	$148.20 - $172.95
Q1 2017	28,959	$4,448	$149.18	$136.61 - $157.89
Q4 2016	22,645	$3,195	$143.74	$135.56 - $156.06
Q3 2016	22,518	$3,582	$150.09	$139.26 - $156.47
Q2 2016	31,508	$4,656	$143.61	$136.38 - $150.60
Q1 2016	29,406	$4,164	$130.26	$116.37 - $138.34
Q4 2015	26,075	$3,699	$129.50	$116.40 - $139.59
Q3 2015	25,603	$3,131	$126.34	$113.67 - $136.94
Q2 2015	44,699	$5,800	$126.27	$121.29 - $130.90
Q1 2015	45,519	$6,115	$124.72	$117.56 - $134.63
Q4 2014	72,989	$9,145	$117.50	$103.69 - $125.37
Q3 2014	73,164	$8,904	$117.35	$112.28 - $122.75
Q2 2014	73,067	$8,622	$113.45	$107.95 - $118.89
Q1 2014	75,064	$9,026	$114.47	$105.00 - $122.85
Q4 2013	68,973	$7,680	$95.60	$86.22 - $107.27
Q3 2013	73,628	$6,785	$86.81	$81.00 - $91.06
Q2 2013	73,085	$6,185	$79.76	$72.10 - $85.73