MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

MARCO INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001080493)

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

Q4 2025

Shares 95,530 Value ($000) $10,055 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 96,455 Value ($000) $8,095 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 97,577 Value ($000) $7,724 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 95,485 Value ($000) $8,571 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 95,610 Value ($000) $9,511 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 97,337 Value ($000) $11,054 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 94,141 Value ($000) $11,655 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 93,680 Value ($000) $12,361 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 92,237 Value ($000) $10,056 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 92,896 Value ($000) $9,564 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 93,535 Value ($000) $10,793 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 95,229 Value ($000) $10,131 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 94,724 Value ($000) $10,510 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 95,078 Value ($000) $8,188 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 96,302 Value ($000) $8,780 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 93,820 Value ($000) $7,698 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 93,633 Value ($000) $7,176 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 86,834 Value ($000) $6,522 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 83,469 Value ($000) $6,491 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 83,419 Value ($000) $6,431 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 83,937 Value ($000) $6,866 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 80,037 Value ($000) $6,639 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 60,621 Value ($000) $4,688 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 62,543 Value ($000) $4,812 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 62,558 Value ($000) $5,690 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 59,782 Value ($000) $5,032 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 58,449 Value ($000) $4,901 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 54,462 Value ($000) $4,530 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 65,741 Value ($000) $5,023 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 68,141 Value ($000) $4,834 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 68,426 Value ($000) $4,153 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 86,776 Value ($000) $4,727 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 90,276 Value ($000) $5,080 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 88,870 Value ($000) $5,690 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 89,389 Value ($000) $5,729 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 88,589 Value ($000) $5,629 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 89,389 Value ($000) $5,262 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 90,039 Value ($000) $5,619 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 90,259 Value ($000) $5,200 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 91,117 Value ($000) $4,821 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 89,317 Value ($000) $4,718 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 92,417 Value ($000) $4,564 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 93,174 Value ($000) $5,304 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 93,604 Value ($000) $5,380 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 92,510 Value ($000) $5,254 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 89,203 Value ($000) $5,288 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 89,048 Value ($000) $5,151 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 85,864 Value ($000) $4,874 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 143,152 Value ($000) $7,165 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 144,352 Value ($000) $6,872 Avg Close $30.97 Range $29.74 - $31.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	95,530	$10,055	$93.24	$81.31 - $107.59
Q3 2025	96,455	$8,095	$81.01	$75.27 - $86.24
Q2 2025	97,577	$7,724	$77.39	$71.26 - $87.25
Q1 2025	95,485	$8,571	$90.12	$78.10 - $99.24
Q4 2024	95,610	$9,511	$98.70	$90.33 - $109.75
Q3 2024	97,337	$11,054	$112.96	$105.16 - $123.40
Q2 2024	94,141	$11,655	$121.72	$114.80 - $127.87
Q1 2024	93,680	$12,361	$115.77	$102.41 - $125.66
Q4 2023	92,237	$10,056	$96.81	$92.34 - $102.48
Q3 2023	92,896	$9,564	$99.84	$95.67 - $106.04
Q2 2023	93,535	$10,793	$104.47	$97.02 - $109.95
Q1 2023	95,229	$10,131	$98.68	$92.86 - $105.40
Q4 2022	94,724	$10,510	$92.80	$77.99 - $103.03
Q3 2022	95,078	$8,188	$80.41	$76.51 - $85.75
Q2 2022	96,302	$8,780	$79.21	$72.83 - $86.09
Q1 2022	93,820	$7,698	$69.85	$64.44 - $74.38
Q4 2021	93,633	$7,176	$69.89	$62.63 - $80.06
Q3 2021	86,834	$6,522	$66.14	$62.09 - $68.78
Q2 2021	83,469	$6,491	$64.14	$59.83 - $67.79
Q1 2021	83,419	$6,431	$63.06	$58.39 - $69.69
Q4 2020	83,937	$6,866	$64.85	$59.73 - $68.80
Q3 2020	80,037	$6,639	$65.93	$60.98 - $70.41
Q2 2020	60,621	$4,688	$62.87	$58.07 - $67.36
Q1 2020	62,543	$4,812	$65.09	$51.91 - $72.71
Q4 2019	62,558	$5,690	$67.55	$62.89 - $73.10
Q3 2019	59,782	$5,032	$65.47	$61.22 - $68.01
Q2 2019	58,449	$4,901	$62.14	$55.86 - $67.34
Q1 2019	54,462	$4,530	$60.29	$55.35 - $64.55
Q4 2018	65,741	$5,023	$56.50	$50.42 - $61.17
Q3 2018	68,141	$4,834	$50.65	$45.40 - $54.60
Q2 2018	68,426	$4,153	$44.52	$39.72 - $47.34
Q1 2018	86,776	$4,727	$42.25	$39.59 - $47.54
Q4 2017	90,276	$5,080	$43.00	$39.63 - $47.96
Q3 2017	88,870	$5,690	$46.68	$44.87 - $49.08
Q2 2017	89,389	$5,729	$46.54	$45.06 - $48.72
Q1 2017	88,589	$5,629	$46.06	$42.70 - $48.31
Q4 2016	89,389	$5,262	$44.08	$41.83 - $46.98
Q3 2016	90,039	$5,619	$43.73	$40.74 - $45.59
Q2 2016	90,259	$5,200	$39.48	$37.06 - $41.09
Q1 2016	91,117	$4,821	$36.03	$33.60 - $37.88
Q4 2015	89,317	$4,718	$36.77	$33.58 - $38.73
Q3 2015	92,417	$4,564	$38.40	$31.46 - $41.36
Q2 2015	93,174	$5,304	$40.23	$38.42 - $42.17
Q1 2015	93,604	$5,380	$40.30	$37.94 - $43.13
Q4 2014	92,510	$5,254	$39.35	$35.32 - $41.85
Q3 2014	89,203	$5,288	$39.37	$37.12 - $41.03
Q2 2014	89,048	$5,151	$37.96	$36.06 - $39.67
Q1 2014	85,864	$4,874	$35.76	$32.43 - $37.92
Q4 2013	143,152	$7,165	$31.29	$29.09 - $32.94
Q3 2013	144,352	$6,872	$30.97	$29.74 - $31.75