MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA's Holding History (CIK: 0000932974)

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

Q4 2025

Shares 345,008 Value ($000) $37,233 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 363,801 Value ($000) $31,716 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 379,060 Value ($000) $30,006 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 393,674 Value ($000) $30,998 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 406,545 Value ($000) $39,817 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 415,764 Value ($000) $44,021 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 418,975 Value ($000) $52,556 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 421,819 Value ($000) $53,546 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 427,090 Value ($000) $51,584 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 430,529 Value ($000) $44,280 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 433,684 Value ($000) $50,043 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 438,028 Value ($000) $46,602 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 442,146 Value ($000) $49,056 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 442,951 Value ($000) $38,147 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 443,913 Value ($000) $40,472 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 446,066 Value ($000) $36,600 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 435,559 Value ($000) $33,381 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 427,760 Value ($000) $32,129 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 416,314 Value ($000) $32,377 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 368,343 Value ($000) $28,396 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 306,803 Value ($000) $25,096 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 293,154 Value ($000) $24,317 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 257,446 Value ($000) $19,908 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 94,818 Value ($000) $7,295 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 94,792 Value ($000) $8,621 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 95,810 Value ($000) $8,065 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 92,502 Value ($000) $7,756 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 89,991 Value ($000) $7,485 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 91,848 Value ($000) $7,018 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 90,192 Value ($000) $6,398 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 90,218 Value ($000) $5,476 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 90,058 Value ($000) $4,905 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 94,887 Value ($000) $5,339 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 95,236 Value ($000) $6,098 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 93,984 Value ($000) $6,004 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 95,050 Value ($000) $6,039 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 95,475 Value ($000) $5,621 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 95,125 Value ($000) $5,937 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 92,197 Value ($000) $5,311 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 81,405 Value ($000) $4,307 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 83,986 Value ($000) $4,436 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 82,041 Value ($000) $4,671 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 82,041 Value ($000) $4,671 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 83,875 Value ($000) $4,821 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 86,030 Value ($000) $4,886 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 86,399 Value ($000) $5,122 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 86,900 Value ($000) $5,027 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 87,455 Value ($000) $4,965 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 87,341 Value ($000) $4,371 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 86,386 Value ($000) $4,113 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 91,993 Value ($000) $4,273 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	345,008	$37,233	$93.24	$81.31 - $107.59
Q3 2025	363,801	$31,716	$81.01	$75.27 - $86.24
Q2 2025	379,060	$30,006	$77.39	$71.26 - $87.25
Q1 2025	393,674	$30,998	$90.12	$78.10 - $99.24
Q4 2024	406,545	$39,817	$98.70	$90.33 - $109.75
Q3 2024	415,764	$44,021	$112.96	$105.16 - $123.40
Q2 2024	418,975	$52,556	$121.72	$114.80 - $127.87
Q1 2024	421,819	$53,546	$115.77	$102.41 - $125.66
Q4 2023	427,090	$51,584	$96.81	$92.34 - $102.48
Q3 2023	430,529	$44,280	$99.84	$95.67 - $106.04
Q2 2023	433,684	$50,043	$104.47	$97.02 - $109.95
Q1 2023	438,028	$46,602	$98.68	$92.86 - $105.40
Q4 2022	442,146	$49,056	$92.80	$77.99 - $103.03
Q3 2022	442,951	$38,147	$80.41	$76.51 - $85.75
Q2 2022	443,913	$40,472	$79.21	$72.83 - $86.09
Q1 2022	446,066	$36,600	$69.85	$64.44 - $74.38
Q4 2021	435,559	$33,381	$69.89	$62.63 - $80.06
Q3 2021	427,760	$32,129	$66.14	$62.09 - $68.78
Q2 2021	416,314	$32,377	$64.14	$59.83 - $67.79
Q1 2021	368,343	$28,396	$63.06	$58.39 - $69.69
Q4 2020	306,803	$25,096	$64.85	$59.73 - $68.80
Q3 2020	293,154	$24,317	$65.93	$60.98 - $70.41
Q2 2020	257,446	$19,908	$62.87	$58.07 - $67.36
Q1 2020	94,818	$7,295	$65.09	$51.91 - $72.71
Q4 2019	94,792	$8,621	$67.55	$62.89 - $73.10
Q3 2019	95,810	$8,065	$65.47	$61.22 - $68.01
Q2 2019	92,502	$7,756	$62.14	$55.86 - $67.34
Q1 2019	89,991	$7,485	$60.29	$55.35 - $64.55
Q4 2018	91,848	$7,018	$56.50	$50.42 - $61.17
Q3 2018	90,192	$6,398	$50.65	$45.40 - $54.60
Q2 2018	90,218	$5,476	$44.52	$39.72 - $47.34
Q1 2018	90,058	$4,905	$42.25	$39.59 - $47.54
Q4 2017	94,887	$5,339	$43.00	$39.63 - $47.96
Q3 2017	95,236	$6,098	$46.68	$44.87 - $49.08
Q2 2017	93,984	$6,004	$46.54	$45.06 - $48.72
Q1 2017	95,050	$6,039	$46.06	$42.70 - $48.31
Q4 2016	95,475	$5,621	$44.08	$41.83 - $46.98
Q3 2016	95,125	$5,937	$43.73	$40.74 - $45.59
Q2 2016	92,197	$5,311	$39.48	$37.06 - $41.09
Q1 2016	81,405	$4,307	$36.03	$33.60 - $37.88
Q4 2015	83,986	$4,436	$36.77	$33.58 - $38.73
Q3 2015	82,041	$4,671	$38.40	$31.46 - $41.36
Q2 2015	82,041	$4,671	$40.23	$38.42 - $42.17
Q1 2015	83,875	$4,821	$40.30	$37.94 - $43.13
Q4 2014	86,030	$4,886	$39.35	$35.32 - $41.85
Q3 2014	86,399	$5,122	$39.37	$37.12 - $41.03
Q2 2014	86,900	$5,027	$37.96	$36.06 - $39.67
Q1 2014	87,455	$4,965	$35.76	$32.43 - $37.92
Q4 2013	87,341	$4,371	$31.29	$29.09 - $32.94
Q3 2013	86,386	$4,113	$30.97	$29.74 - $31.75
Q2 2013	91,993	$4,273	$30.02	$28.02 - $32.11