MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q4 2025

Shares 932,997 Value ($000) $98,207 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 966,673 Value ($000) $81,133 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 1,005,405 Value ($000) $79,588 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 1,034,543 Value ($000) $92,861 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 1,064,968 Value ($000) $105,943 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 1,104,917 Value ($000) $125,474 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 1,102,025 Value ($000) $136,431 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 1,102,603 Value ($000) $145,489 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 1,120,343 Value ($000) $122,140 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 1,140,296 Value ($000) $117,394 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 3,402,503 Value ($000) $0 Avg Close $104.47 Range $97.02 - $109.95

Q4 2022

Shares 704,036 Value ($000) $78 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 701,579 Value ($000) $68,313 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 698,238 Value ($000) $64,489 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 713,385 Value ($000) $61,679 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 709,880 Value ($000) $56,407 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 735,667 Value ($000) $59,699 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 868,797 Value ($000) $68,166 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 871,197 Value ($000) $67,848 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 882,137 Value ($000) $71,436 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 908,361 Value ($000) $72,515 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 897,211 Value ($000) $70,682 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 899,175 Value ($000) $73,219 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 915,416 Value ($000) $79,184 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 943,412 Value ($000) $77,907 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 937,814 Value ($000) $76,826 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 1,037,906 Value ($000) $83,883 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 1,072,781 Value ($000) $78,559 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 1,114,140 Value ($000) $80,330 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 1,284,643 Value ($000) $80,329 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 1,330,618 Value ($000) $78,028 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 1,346,802 Value ($000) $82,398 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 1,407,984 Value ($000) $77,030 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 1,430,737 Value ($000) $89,522 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 1,460,433 Value ($000) $91,394 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 1,488,015 Value ($000) $92,763 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 1,462,650 Value ($000) $91,650 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 1,451,706 Value ($000) $90,717 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 1,493,335 Value ($000) $83,835 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 1,510,398 Value ($000) $77,151 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 1,571,162 Value ($000) $77,601 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 3,207,974 Value ($000) $182,630 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 1,661,809 Value ($000) $95,520 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 3,354,966 Value ($000) $190,528 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 1,698,659 Value ($000) $100,697 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 1,800,013 Value ($000) $104,130 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 2,005,885 Value ($000) $113,874 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 1,937,028 Value ($000) $96,948 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 2,306,367 Value ($000) $109,806 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 2,300,213 Value ($000) $106,844 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	932,997	$98,207	$93.24	$81.31 - $107.59
Q3 2025	966,673	$81,133	$81.01	$75.27 - $86.24
Q2 2025	1,005,405	$79,588	$77.39	$71.26 - $87.25
Q1 2025	1,034,543	$92,861	$90.12	$78.10 - $99.24
Q4 2024	1,064,968	$105,943	$98.70	$90.33 - $109.75
Q3 2024	1,104,917	$125,474	$112.96	$105.16 - $123.40
Q2 2024	1,102,025	$136,431	$121.72	$114.80 - $127.87
Q1 2024	1,102,603	$145,489	$115.77	$102.41 - $125.66
Q4 2023	1,120,343	$122,140	$96.81	$92.34 - $102.48
Q3 2023	1,140,296	$117,394	$99.84	$95.67 - $106.04
Q2 2023	3,402,503	$0	$104.47	$97.02 - $109.95
Q4 2022	704,036	$78	$92.80	$77.99 - $103.03
Q3 2022	701,579	$68,313	$80.41	$76.51 - $85.75
Q2 2022	698,238	$64,489	$79.21	$72.83 - $86.09
Q1 2022	713,385	$61,679	$69.85	$64.44 - $74.38
Q4 2021	709,880	$56,407	$69.89	$62.63 - $80.06
Q3 2021	735,667	$59,699	$66.14	$62.09 - $68.78
Q2 2021	868,797	$68,166	$64.14	$59.83 - $67.79
Q1 2021	871,197	$67,848	$63.06	$58.39 - $69.69
Q4 2020	882,137	$71,436	$64.85	$59.73 - $68.80
Q3 2020	908,361	$72,515	$65.93	$60.98 - $70.41
Q2 2020	897,211	$70,682	$62.87	$58.07 - $67.36
Q1 2020	899,175	$73,219	$65.09	$51.91 - $72.71
Q4 2019	915,416	$79,184	$67.55	$62.89 - $73.10
Q3 2019	943,412	$77,907	$65.47	$61.22 - $68.01
Q2 2019	937,814	$76,826	$62.14	$55.86 - $67.34
Q1 2019	1,037,906	$83,883	$60.29	$55.35 - $64.55
Q4 2018	1,072,781	$78,559	$56.50	$50.42 - $61.17
Q3 2018	1,114,140	$80,330	$50.65	$45.40 - $54.60
Q2 2018	1,284,643	$80,329	$44.52	$39.72 - $47.34
Q1 2018	1,330,618	$78,028	$42.25	$39.59 - $47.54
Q4 2017	1,346,802	$82,398	$43.00	$39.63 - $47.96
Q3 2017	1,407,984	$77,030	$46.68	$44.87 - $49.08
Q2 2017	1,430,737	$89,522	$46.54	$45.06 - $48.72
Q1 2017	1,460,433	$91,394	$46.06	$42.70 - $48.31
Q4 2016	1,488,015	$92,763	$44.08	$41.83 - $46.98
Q3 2016	1,462,650	$91,650	$43.73	$40.74 - $45.59
Q2 2016	1,451,706	$90,717	$39.48	$37.06 - $41.09
Q1 2016	1,493,335	$83,835	$36.03	$33.60 - $37.88
Q4 2015	1,510,398	$77,151	$36.77	$33.58 - $38.73
Q3 2015	1,571,162	$77,601	$38.40	$31.46 - $41.36
Q2 2015	3,207,974	$182,630	$40.23	$38.42 - $42.17
Q1 2015	1,661,809	$95,520	$40.30	$37.94 - $43.13
Q4 2014	3,354,966	$190,528	$39.35	$35.32 - $41.85
Q3 2014	1,698,659	$100,697	$39.37	$37.12 - $41.03
Q2 2014	1,800,013	$104,130	$37.96	$36.06 - $39.67
Q1 2014	2,005,885	$113,874	$35.76	$32.43 - $37.92
Q4 2013	1,937,028	$96,948	$31.29	$29.09 - $32.94
Q3 2013	2,306,367	$109,806	$30.97	$29.74 - $31.75
Q2 2013	2,300,213	$106,844	$30.02	$28.02 - $32.11