MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

HENNESSY ADVISORS INC's Holding History (CIK: 0001145255)

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

Q4 2025

Shares 121,850 Value ($000) $12,826 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 125,300 Value ($000) $10,516 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 125,500 Value ($000) $9,935 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 123,650 Value ($000) $11,099 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 64,950 Value ($000) $6,461 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 46,950 Value ($000) $5,332 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 43,200 Value ($000) $5,348 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 44,100 Value ($000) $5,819 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 45,900 Value ($000) $5,004 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 48,500 Value ($000) $4,993 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 49,500 Value ($000) $5,712 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 52,300 Value ($000) $5,564 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 94,800 Value ($000) $11 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 123,100 Value ($000) $10,601 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 127,300 Value ($000) $11,606 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 130,350 Value ($000) $10,695 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 152,550 Value ($000) $11,691 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 151,350 Value ($000) $11,368 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 146,450 Value ($000) $11,389 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 142,800 Value ($000) $11,008 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 104,500 Value ($000) $8,548 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 88,000 Value ($000) $7,300 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 89,800 Value ($000) $6,944 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 93,100 Value ($000) $7,163 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 27,950 Value ($000) $2,542 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 62,250 Value ($000) $5,240 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 76,250 Value ($000) $6,394 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 72,850 Value ($000) $6,059 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 168,900 Value ($000) $12,906 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 176,400 Value ($000) $12,514 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 158,500 Value ($000) $9,621 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 154,750 Value ($000) $8,429 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 38,950 Value ($000) $2,192 Avg Close $43.00 Range $39.63 - $47.96

Q2 2017

Shares 8,600 Value ($000) $551 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 16,600 Value ($000) $1,055 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 94,050 Value ($000) $5,537 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 129,650 Value ($000) $8,091 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 147,500 Value ($000) $8,497 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 142,600 Value ($000) $7,545 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 139,550 Value ($000) $7,371 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 143,250 Value ($000) $7,075 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 155,900 Value ($000) $8,875 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 160,950 Value ($000) $9,251 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 167,350 Value ($000) $9,504 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 172,500 Value ($000) $10,226 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 181,300 Value ($000) $10,488 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 185,600 Value ($000) $10,537 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 200,800 Value ($000) $10,050 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 190,300 Value ($000) $9,060 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 194,200 Value ($000) $9,021 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	121,850	$12,826	$93.24	$81.31 - $107.59
Q3 2025	125,300	$10,516	$81.01	$75.27 - $86.24
Q2 2025	125,500	$9,935	$77.39	$71.26 - $87.25
Q1 2025	123,650	$11,099	$90.12	$78.10 - $99.24
Q4 2024	64,950	$6,461	$98.70	$90.33 - $109.75
Q3 2024	46,950	$5,332	$112.96	$105.16 - $123.40
Q2 2024	43,200	$5,348	$121.72	$114.80 - $127.87
Q1 2024	44,100	$5,819	$115.77	$102.41 - $125.66
Q4 2023	45,900	$5,004	$96.81	$92.34 - $102.48
Q3 2023	48,500	$4,993	$99.84	$95.67 - $106.04
Q2 2023	49,500	$5,712	$104.47	$97.02 - $109.95
Q1 2023	52,300	$5,564	$98.68	$92.86 - $105.40
Q4 2022	94,800	$11	$92.80	$77.99 - $103.03
Q3 2022	123,100	$10,601	$80.41	$76.51 - $85.75
Q2 2022	127,300	$11,606	$79.21	$72.83 - $86.09
Q1 2022	130,350	$10,695	$69.85	$64.44 - $74.38
Q4 2021	152,550	$11,691	$69.89	$62.63 - $80.06
Q3 2021	151,350	$11,368	$66.14	$62.09 - $68.78
Q2 2021	146,450	$11,389	$64.14	$59.83 - $67.79
Q1 2021	142,800	$11,008	$63.06	$58.39 - $69.69
Q4 2020	104,500	$8,548	$64.85	$59.73 - $68.80
Q3 2020	88,000	$7,300	$65.93	$60.98 - $70.41
Q2 2020	89,800	$6,944	$62.87	$58.07 - $67.36
Q1 2020	93,100	$7,163	$65.09	$51.91 - $72.71
Q4 2019	27,950	$2,542	$67.55	$62.89 - $73.10
Q3 2019	62,250	$5,240	$65.47	$61.22 - $68.01
Q2 2019	76,250	$6,394	$62.14	$55.86 - $67.34
Q1 2019	72,850	$6,059	$60.29	$55.35 - $64.55
Q4 2018	168,900	$12,906	$56.50	$50.42 - $61.17
Q3 2018	176,400	$12,514	$50.65	$45.40 - $54.60
Q2 2018	158,500	$9,621	$44.52	$39.72 - $47.34
Q1 2018	154,750	$8,429	$42.25	$39.59 - $47.54
Q4 2017	38,950	$2,192	$43.00	$39.63 - $47.96
Q2 2017	8,600	$551	$46.54	$45.06 - $48.72
Q1 2017	16,600	$1,055	$46.06	$42.70 - $48.31
Q4 2016	94,050	$5,537	$44.08	$41.83 - $46.98
Q3 2016	129,650	$8,091	$43.73	$40.74 - $45.59
Q2 2016	147,500	$8,497	$39.48	$37.06 - $41.09
Q1 2016	142,600	$7,545	$36.03	$33.60 - $37.88
Q4 2015	139,550	$7,371	$36.77	$33.58 - $38.73
Q3 2015	143,250	$7,075	$38.40	$31.46 - $41.36
Q2 2015	155,900	$8,875	$40.23	$38.42 - $42.17
Q1 2015	160,950	$9,251	$40.30	$37.94 - $43.13
Q4 2014	167,350	$9,504	$39.35	$35.32 - $41.85
Q3 2014	172,500	$10,226	$39.37	$37.12 - $41.03
Q2 2014	181,300	$10,488	$37.96	$36.06 - $39.67
Q1 2014	185,600	$10,537	$35.76	$32.43 - $37.92
Q4 2013	200,800	$10,050	$31.29	$29.09 - $32.94
Q3 2013	190,300	$9,060	$30.97	$29.74 - $31.75
Q2 2013	194,200	$9,021	$30.02	$28.02 - $32.11