MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

MITCHELL SINKLER & STARR/PA's Holding History (CIK: 0001048921)

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

Q4 2025

Shares 42,297 Value ($000) $4,452 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 44,777 Value ($000) $3,758 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 44,808 Value ($000) $3,547 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 100,433 Value ($000) $9,015 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 87,542 Value ($000) $8,709 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 110,810 Value ($000) $11,285 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 102,289 Value ($000) $12,701 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 107,506 Value ($000) $14,185 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 208,207 Value ($000) $22,699 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 142,818 Value ($000) $14,703 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 104,449 Value ($000) $12,052 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 104,649 Value ($000) $11,134 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 90,432 Value ($000) $10,033 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 82,308 Value ($000) $7,088 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 80,751 Value ($000) $7,362 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 80,001 Value ($000) $6,564 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 86,941 Value ($000) $6,663 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 22,045 Value ($000) $1,656 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 22,415 Value ($000) $1,743 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 22,815 Value ($000) $1,759 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 22,215 Value ($000) $1,817 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 24,655 Value ($000) $2,045 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 24,655 Value ($000) $1,907 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 24,655 Value ($000) $1,897 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 24,655 Value ($000) $2,242 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 26,765 Value ($000) $2,253 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 28,532 Value ($000) $2,392 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 28,707 Value ($000) $2,388 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 30,337 Value ($000) $2,318 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 33,642 Value ($000) $2,387 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 34,562 Value ($000) $2,098 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 35,137 Value ($000) $1,914 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 20,492 Value ($000) $1,153 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 20,492 Value ($000) $1,312 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 20,192 Value ($000) $1,294 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 21,537 Value ($000) $1,368 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 25,537 Value ($000) $1,503 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 26,337 Value ($000) $1,644 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 26,337 Value ($000) $1,517 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 26,937 Value ($000) $1,425 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 26,937 Value ($000) $1,423 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 30,937 Value ($000) $1,528 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 30,937 Value ($000) $1,761 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 30,762 Value ($000) $1,768 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 30,762 Value ($000) $1,747 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 30,762 Value ($000) $1,824 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 30,487 Value ($000) $1,764 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 30,487 Value ($000) $1,731 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 30,837 Value ($000) $1,543 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 33,487 Value ($000) $1,594 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 498,563 Value ($000) $23,158 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	42,297	$4,452	$93.24	$81.31 - $107.59
Q3 2025	44,777	$3,758	$81.01	$75.27 - $86.24
Q2 2025	44,808	$3,547	$77.39	$71.26 - $87.25
Q1 2025	100,433	$9,015	$90.12	$78.10 - $99.24
Q4 2024	87,542	$8,709	$98.70	$90.33 - $109.75
Q3 2024	110,810	$11,285	$112.96	$105.16 - $123.40
Q2 2024	102,289	$12,701	$121.72	$114.80 - $127.87
Q1 2024	107,506	$14,185	$115.77	$102.41 - $125.66
Q4 2023	208,207	$22,699	$96.81	$92.34 - $102.48
Q3 2023	142,818	$14,703	$99.84	$95.67 - $106.04
Q2 2023	104,449	$12,052	$104.47	$97.02 - $109.95
Q1 2023	104,649	$11,134	$98.68	$92.86 - $105.40
Q4 2022	90,432	$10,033	$92.80	$77.99 - $103.03
Q3 2022	82,308	$7,088	$80.41	$76.51 - $85.75
Q2 2022	80,751	$7,362	$79.21	$72.83 - $86.09
Q1 2022	80,001	$6,564	$69.85	$64.44 - $74.38
Q4 2021	86,941	$6,663	$69.89	$62.63 - $80.06
Q3 2021	22,045	$1,656	$66.14	$62.09 - $68.78
Q2 2021	22,415	$1,743	$64.14	$59.83 - $67.79
Q1 2021	22,815	$1,759	$63.06	$58.39 - $69.69
Q4 2020	22,215	$1,817	$64.85	$59.73 - $68.80
Q3 2020	24,655	$2,045	$65.93	$60.98 - $70.41
Q2 2020	24,655	$1,907	$62.87	$58.07 - $67.36
Q1 2020	24,655	$1,897	$65.09	$51.91 - $72.71
Q4 2019	24,655	$2,242	$67.55	$62.89 - $73.10
Q3 2019	26,765	$2,253	$65.47	$61.22 - $68.01
Q2 2019	28,532	$2,392	$62.14	$55.86 - $67.34
Q1 2019	28,707	$2,388	$60.29	$55.35 - $64.55
Q4 2018	30,337	$2,318	$56.50	$50.42 - $61.17
Q3 2018	33,642	$2,387	$50.65	$45.40 - $54.60
Q2 2018	34,562	$2,098	$44.52	$39.72 - $47.34
Q1 2018	35,137	$1,914	$42.25	$39.59 - $47.54
Q4 2017	20,492	$1,153	$43.00	$39.63 - $47.96
Q3 2017	20,492	$1,312	$46.68	$44.87 - $49.08
Q2 2017	20,192	$1,294	$46.54	$45.06 - $48.72
Q1 2017	21,537	$1,368	$46.06	$42.70 - $48.31
Q4 2016	25,537	$1,503	$44.08	$41.83 - $46.98
Q3 2016	26,337	$1,644	$43.73	$40.74 - $45.59
Q2 2016	26,337	$1,517	$39.48	$37.06 - $41.09
Q1 2016	26,937	$1,425	$36.03	$33.60 - $37.88
Q4 2015	26,937	$1,423	$36.77	$33.58 - $38.73
Q3 2015	30,937	$1,528	$38.40	$31.46 - $41.36
Q2 2015	30,937	$1,761	$40.23	$38.42 - $42.17
Q1 2015	30,762	$1,768	$40.30	$37.94 - $43.13
Q4 2014	30,762	$1,747	$39.35	$35.32 - $41.85
Q3 2014	30,762	$1,824	$39.37	$37.12 - $41.03
Q2 2014	30,487	$1,764	$37.96	$36.06 - $39.67
Q1 2014	30,487	$1,731	$35.76	$32.43 - $37.92
Q4 2013	30,837	$1,543	$31.29	$29.09 - $32.94
Q3 2013	33,487	$1,594	$30.97	$29.74 - $31.75
Q2 2013	498,563	$23,158	$30.02	$28.02 - $32.11