MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

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

Q4 2025

Shares 48,965 Value ($000) $5,154 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 44,584 Value ($000) $3,742 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 44,377 Value ($000) $3,513 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 43,678 Value ($000) $3,921 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 43,037 Value ($000) $4,281 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 43,040 Value ($000) $4,888 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 49,504 Value ($000) $6,129 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 49,894 Value ($000) $6,583 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 50,299 Value ($000) $5,484 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 50,283 Value ($000) $5,177 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 50,866 Value ($000) $5,869 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 50,970 Value ($000) $5,423 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 45,756 Value ($000) $5 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 45,142 Value ($000) $3,888 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 42,301 Value ($000) $3,857 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 50,903 Value ($000) $4,177 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 42,472 Value ($000) $3,255 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 43,468 Value ($000) $3,265 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 44,810 Value ($000) $3,485 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 46,075 Value ($000) $3,551 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 45,126 Value ($000) $3,691 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 44,800 Value ($000) $3,716 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 44,444 Value ($000) $3,536 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 42,910 Value ($000) $3,301 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 57,513 Value ($000) $5,230 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 57,259 Value ($000) $4,820 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 57,493 Value ($000) $4,820 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 59,101 Value ($000) $4,915 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 60,530 Value ($000) $4,625 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 59,834 Value ($000) $4,244 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 59,745 Value ($000) $3,626 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 60,546 Value ($000) $3,297 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 58,227 Value ($000) $3,276 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 58,943 Value ($000) $3,774 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 62,122 Value ($000) $3,981 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 53,928 Value ($000) $3,426 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 57,667 Value ($000) $3,394 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 63,087 Value ($000) $3,937 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 62,568 Value ($000) $3,604 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 62,558 Value ($000) $3,309 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 61,268 Value ($000) $3,236 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 36,460 Value ($000) $1,800 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 36,654 Value ($000) $2,086 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 36,428 Value ($000) $2,093 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 35,748 Value ($000) $2,030 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 27,701 Value ($000) $1,642 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 31,577 Value ($000) $1,827 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 29,563 Value ($000) $1,678 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 19,083 Value ($000) $955 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 18,403 Value ($000) $876 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 19,569 Value ($000) $909 Avg Close $30.02 Range $28.02 - $32.11

Q1 2013

Shares 19,569 Value ($000) $909 Avg Close $27.22 Range $25.89 - $28.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	48,965	$5,154	$93.24	$81.31 - $107.59
Q3 2025	44,584	$3,742	$81.01	$75.27 - $86.24
Q2 2025	44,377	$3,513	$77.39	$71.26 - $87.25
Q1 2025	43,678	$3,921	$90.12	$78.10 - $99.24
Q4 2024	43,037	$4,281	$98.70	$90.33 - $109.75
Q3 2024	43,040	$4,888	$112.96	$105.16 - $123.40
Q2 2024	49,504	$6,129	$121.72	$114.80 - $127.87
Q1 2024	49,894	$6,583	$115.77	$102.41 - $125.66
Q4 2023	50,299	$5,484	$96.81	$92.34 - $102.48
Q3 2023	50,283	$5,177	$99.84	$95.67 - $106.04
Q2 2023	50,866	$5,869	$104.47	$97.02 - $109.95
Q1 2023	50,970	$5,423	$98.68	$92.86 - $105.40
Q4 2022	45,756	$5	$92.80	$77.99 - $103.03
Q3 2022	45,142	$3,888	$80.41	$76.51 - $85.75
Q2 2022	42,301	$3,857	$79.21	$72.83 - $86.09
Q1 2022	50,903	$4,177	$69.85	$64.44 - $74.38
Q4 2021	42,472	$3,255	$69.89	$62.63 - $80.06
Q3 2021	43,468	$3,265	$66.14	$62.09 - $68.78
Q2 2021	44,810	$3,485	$64.14	$59.83 - $67.79
Q1 2021	46,075	$3,551	$63.06	$58.39 - $69.69
Q4 2020	45,126	$3,691	$64.85	$59.73 - $68.80
Q3 2020	44,800	$3,716	$65.93	$60.98 - $70.41
Q2 2020	44,444	$3,536	$62.87	$58.07 - $67.36
Q1 2020	42,910	$3,301	$65.09	$51.91 - $72.71
Q4 2019	57,513	$5,230	$67.55	$62.89 - $73.10
Q3 2019	57,259	$4,820	$65.47	$61.22 - $68.01
Q2 2019	57,493	$4,820	$62.14	$55.86 - $67.34
Q1 2019	59,101	$4,915	$60.29	$55.35 - $64.55
Q4 2018	60,530	$4,625	$56.50	$50.42 - $61.17
Q3 2018	59,834	$4,244	$50.65	$45.40 - $54.60
Q2 2018	59,745	$3,626	$44.52	$39.72 - $47.34
Q1 2018	60,546	$3,297	$42.25	$39.59 - $47.54
Q4 2017	58,227	$3,276	$43.00	$39.63 - $47.96
Q3 2017	58,943	$3,774	$46.68	$44.87 - $49.08
Q2 2017	62,122	$3,981	$46.54	$45.06 - $48.72
Q1 2017	53,928	$3,426	$46.06	$42.70 - $48.31
Q4 2016	57,667	$3,394	$44.08	$41.83 - $46.98
Q3 2016	63,087	$3,937	$43.73	$40.74 - $45.59
Q2 2016	62,568	$3,604	$39.48	$37.06 - $41.09
Q1 2016	62,558	$3,309	$36.03	$33.60 - $37.88
Q4 2015	61,268	$3,236	$36.77	$33.58 - $38.73
Q3 2015	36,460	$1,800	$38.40	$31.46 - $41.36
Q2 2015	36,654	$2,086	$40.23	$38.42 - $42.17
Q1 2015	36,428	$2,093	$40.30	$37.94 - $43.13
Q4 2014	35,748	$2,030	$39.35	$35.32 - $41.85
Q3 2014	27,701	$1,642	$39.37	$37.12 - $41.03
Q2 2014	31,577	$1,827	$37.96	$36.06 - $39.67
Q1 2014	29,563	$1,678	$35.76	$32.43 - $37.92
Q4 2013	19,083	$955	$31.29	$29.09 - $32.94
Q3 2013	18,403	$876	$30.97	$29.74 - $31.75
Q2 2013	19,569	$909	$30.02	$28.02 - $32.11
Q1 2013	19,569	$909	$27.22	$25.89 - $28.80