MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

TOWER BRIDGE ADVISORS's Holding History (CIK: 0001278249)

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

Q4 2025

Shares 35,935 Value ($000) $3,783 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 35,983 Value ($000) $3,020 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 39,293 Value ($000) $3,110 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 43,866 Value ($000) $3,937 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 48,066 Value ($000) $4,782 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 48,500 Value ($000) $5,508 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 47,095 Value ($000) $5,830 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 48,157 Value ($000) $6,354 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 48,656 Value ($000) $5,304 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 49,353 Value ($000) $5,081 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 50,600 Value ($000) $5,839 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 64,956 Value ($000) $6,911 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 63,456 Value ($000) $7,040 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 63,673 Value ($000) $5,483,519 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 64,303 Value ($000) $5,862,505 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 63,785 Value ($000) $5,233,559 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 63,341 Value ($000) $4,854,454 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 64,620 Value ($000) $4,853,592 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 64,755 Value ($000) $5,035,980 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 65,035 Value ($000) $5,013,532 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 66,328 Value ($000) $5,425,630 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 40,278 Value ($000) $3,341,060 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 40,008 Value ($000) $3,093,819 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 42,908 Value ($000) $3,301,342 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 40,014 Value ($000) $3,639,273 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 42,374 Value ($000) $3,542,043 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 44,118 Value ($000) $3,699,294 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 44,538 Value ($000) $3,704,225 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 44,773 Value ($000) $3,421,105 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 48,930 Value ($000) $3,471,094 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 52,348 Value ($000) $3,177,524 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 67,085 Value ($000) $3,654,120 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 105,049 Value ($000) $5,911,107 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 121,651 Value ($000) $7,789,318 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 118,306 Value ($000) $7,582,236 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 116,798 Value ($000) $7,421,350 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 117,033 Value ($000) $6,889,737 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 116,448 Value ($000) $7,267,524 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 116,040 Value ($000) $6,685,069 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 119,094 Value ($000) $6,301,268 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 110,134 Value ($000) $5,817,282 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 140,568 Value ($000) $6,942,657 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 137,763 Value ($000) $7,842,852 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 129,970 Value ($000) $7,470,680 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 84,958 Value ($000) $4,824,769 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 78,586 Value ($000) $4,658,583 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 79,786 Value ($000) $4,615,624 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 78,661 Value ($000) $4,465,589 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 77,983 Value ($000) $3,903,053 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 78,314 Value ($000) $3,728,455 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 73,201 Value ($000) $3,400,176 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,935	$3,783	$93.24	$81.31 - $107.59
Q3 2025	35,983	$3,020	$81.01	$75.27 - $86.24
Q2 2025	39,293	$3,110	$77.39	$71.26 - $87.25
Q1 2025	43,866	$3,937	$90.12	$78.10 - $99.24
Q4 2024	48,066	$4,782	$98.70	$90.33 - $109.75
Q3 2024	48,500	$5,508	$112.96	$105.16 - $123.40
Q2 2024	47,095	$5,830	$121.72	$114.80 - $127.87
Q1 2024	48,157	$6,354	$115.77	$102.41 - $125.66
Q4 2023	48,656	$5,304	$96.81	$92.34 - $102.48
Q3 2023	49,353	$5,081	$99.84	$95.67 - $106.04
Q2 2023	50,600	$5,839	$104.47	$97.02 - $109.95
Q1 2023	64,956	$6,911	$98.68	$92.86 - $105.40
Q4 2022	63,456	$7,040	$92.80	$77.99 - $103.03
Q3 2022	63,673	$5,483,519	$80.41	$76.51 - $85.75
Q2 2022	64,303	$5,862,505	$79.21	$72.83 - $86.09
Q1 2022	63,785	$5,233,559	$69.85	$64.44 - $74.38
Q4 2021	63,341	$4,854,454	$69.89	$62.63 - $80.06
Q3 2021	64,620	$4,853,592	$66.14	$62.09 - $68.78
Q2 2021	64,755	$5,035,980	$64.14	$59.83 - $67.79
Q1 2021	65,035	$5,013,532	$63.06	$58.39 - $69.69
Q4 2020	66,328	$5,425,630	$64.85	$59.73 - $68.80
Q3 2020	40,278	$3,341,060	$65.93	$60.98 - $70.41
Q2 2020	40,008	$3,093,819	$62.87	$58.07 - $67.36
Q1 2020	42,908	$3,301,342	$65.09	$51.91 - $72.71
Q4 2019	40,014	$3,639,273	$67.55	$62.89 - $73.10
Q3 2019	42,374	$3,542,043	$65.47	$61.22 - $68.01
Q2 2019	44,118	$3,699,294	$62.14	$55.86 - $67.34
Q1 2019	44,538	$3,704,225	$60.29	$55.35 - $64.55
Q4 2018	44,773	$3,421,105	$56.50	$50.42 - $61.17
Q3 2018	48,930	$3,471,094	$50.65	$45.40 - $54.60
Q2 2018	52,348	$3,177,524	$44.52	$39.72 - $47.34
Q1 2018	67,085	$3,654,120	$42.25	$39.59 - $47.54
Q4 2017	105,049	$5,911,107	$43.00	$39.63 - $47.96
Q3 2017	121,651	$7,789,318	$46.68	$44.87 - $49.08
Q2 2017	118,306	$7,582,236	$46.54	$45.06 - $48.72
Q1 2017	116,798	$7,421,350	$46.06	$42.70 - $48.31
Q4 2016	117,033	$6,889,737	$44.08	$41.83 - $46.98
Q3 2016	116,448	$7,267,524	$43.73	$40.74 - $45.59
Q2 2016	116,040	$6,685,069	$39.48	$37.06 - $41.09
Q1 2016	119,094	$6,301,268	$36.03	$33.60 - $37.88
Q4 2015	110,134	$5,817,282	$36.77	$33.58 - $38.73
Q3 2015	140,568	$6,942,657	$38.40	$31.46 - $41.36
Q2 2015	137,763	$7,842,852	$40.23	$38.42 - $42.17
Q1 2015	129,970	$7,470,680	$40.30	$37.94 - $43.13
Q4 2014	84,958	$4,824,769	$39.35	$35.32 - $41.85
Q3 2014	78,586	$4,658,583	$39.37	$37.12 - $41.03
Q2 2014	79,786	$4,615,624	$37.96	$36.06 - $39.67
Q1 2014	78,661	$4,465,589	$35.76	$32.43 - $37.92
Q4 2013	77,983	$3,903,053	$31.29	$29.09 - $32.94
Q3 2013	78,314	$3,728,455	$30.97	$29.74 - $31.75
Q2 2013	73,201	$3,400,176	$30.02	$28.02 - $32.11