MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

Texas Yale Capital Corp.'s Holding History (CIK: 0001332342)

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

Q4 2025

Shares 57,808 Value ($000) $6,085 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 57,483 Value ($000) $4,825 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 37,883 Value ($000) $2,999 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 37,048 Value ($000) $3,325 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 40,688 Value ($000) $4,048 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 39,938 Value ($000) $4,535 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 40,373 Value ($000) $4,998 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 39,908 Value ($000) $5,266 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 39,908 Value ($000) $4,351 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 39,908 Value ($000) $4,109 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 40,108 Value ($000) $4,628 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 40,108 Value ($000) $4,267 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 40,108 Value ($000) $4,450 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 42,408 Value ($000) $3,652 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 41,373 Value ($000) $3,772 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 40,553 Value ($000) $3,327 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 40,553 Value ($000) $3,108 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 39,811 Value ($000) $2,990 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 39,791 Value ($000) $3,095 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 39,450 Value ($000) $3,041 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 46,350 Value ($000) $3,791 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 46,310 Value ($000) $3,841 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 46,310 Value ($000) $3,581 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 46,797 Value ($000) $3,601 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 38,976 Value ($000) $3,545 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 38,943 Value ($000) $3,278 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 38,943 Value ($000) $3,265 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 76,278 Value ($000) $6,344 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 37,004 Value ($000) $2,827 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 35,670 Value ($000) $2,530 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 35,670 Value ($000) $2,165 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 37,208 Value ($000) $2,027 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 35,508 Value ($000) $1,998 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 47,198 Value ($000) $3,022 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 48,270 Value ($000) $3,094 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 48,270 Value ($000) $3,067 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 46,695 Value ($000) $2,749 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 30,965 Value ($000) $1,933 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 30,965 Value ($000) $1,784 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 31,065 Value ($000) $1,644 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 31,065 Value ($000) $1,641 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 32,015 Value ($000) $1,581 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 32,015 Value ($000) $1,823 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 32,015 Value ($000) $1,840 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 33,117 Value ($000) $1,881 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 33,117 Value ($000) $1,963 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 29,550 Value ($000) $1,709 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 29,550 Value ($000) $1,678 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 19,150 Value ($000) $958 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 19,150 Value ($000) $912 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 18,750 Value ($000) $871 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	57,808	$6,085	$93.24	$81.31 - $107.59
Q3 2025	57,483	$4,825	$81.01	$75.27 - $86.24
Q2 2025	37,883	$2,999	$77.39	$71.26 - $87.25
Q1 2025	37,048	$3,325	$90.12	$78.10 - $99.24
Q4 2024	40,688	$4,048	$98.70	$90.33 - $109.75
Q3 2024	39,938	$4,535	$112.96	$105.16 - $123.40
Q2 2024	40,373	$4,998	$121.72	$114.80 - $127.87
Q1 2024	39,908	$5,266	$115.77	$102.41 - $125.66
Q4 2023	39,908	$4,351	$96.81	$92.34 - $102.48
Q3 2023	39,908	$4,109	$99.84	$95.67 - $106.04
Q2 2023	40,108	$4,628	$104.47	$97.02 - $109.95
Q1 2023	40,108	$4,267	$98.68	$92.86 - $105.40
Q4 2022	40,108	$4,450	$92.80	$77.99 - $103.03
Q3 2022	42,408	$3,652	$80.41	$76.51 - $85.75
Q2 2022	41,373	$3,772	$79.21	$72.83 - $86.09
Q1 2022	40,553	$3,327	$69.85	$64.44 - $74.38
Q4 2021	40,553	$3,108	$69.89	$62.63 - $80.06
Q3 2021	39,811	$2,990	$66.14	$62.09 - $68.78
Q2 2021	39,791	$3,095	$64.14	$59.83 - $67.79
Q1 2021	39,450	$3,041	$63.06	$58.39 - $69.69
Q4 2020	46,350	$3,791	$64.85	$59.73 - $68.80
Q3 2020	46,310	$3,841	$65.93	$60.98 - $70.41
Q2 2020	46,310	$3,581	$62.87	$58.07 - $67.36
Q1 2020	46,797	$3,601	$65.09	$51.91 - $72.71
Q4 2019	38,976	$3,545	$67.55	$62.89 - $73.10
Q3 2019	38,943	$3,278	$65.47	$61.22 - $68.01
Q2 2019	38,943	$3,265	$62.14	$55.86 - $67.34
Q1 2019	76,278	$6,344	$60.29	$55.35 - $64.55
Q4 2018	37,004	$2,827	$56.50	$50.42 - $61.17
Q3 2018	35,670	$2,530	$50.65	$45.40 - $54.60
Q2 2018	35,670	$2,165	$44.52	$39.72 - $47.34
Q1 2018	37,208	$2,027	$42.25	$39.59 - $47.54
Q4 2017	35,508	$1,998	$43.00	$39.63 - $47.96
Q3 2017	47,198	$3,022	$46.68	$44.87 - $49.08
Q2 2017	48,270	$3,094	$46.54	$45.06 - $48.72
Q1 2017	48,270	$3,067	$46.06	$42.70 - $48.31
Q4 2016	46,695	$2,749	$44.08	$41.83 - $46.98
Q3 2016	30,965	$1,933	$43.73	$40.74 - $45.59
Q2 2016	30,965	$1,784	$39.48	$37.06 - $41.09
Q1 2016	31,065	$1,644	$36.03	$33.60 - $37.88
Q4 2015	31,065	$1,641	$36.77	$33.58 - $38.73
Q3 2015	32,015	$1,581	$38.40	$31.46 - $41.36
Q2 2015	32,015	$1,823	$40.23	$38.42 - $42.17
Q1 2015	32,015	$1,840	$40.30	$37.94 - $43.13
Q4 2014	33,117	$1,881	$39.35	$35.32 - $41.85
Q3 2014	33,117	$1,963	$39.37	$37.12 - $41.03
Q2 2014	29,550	$1,709	$37.96	$36.06 - $39.67
Q1 2014	29,550	$1,678	$35.76	$32.43 - $37.92
Q4 2013	19,150	$958	$31.29	$29.09 - $32.94
Q3 2013	19,150	$912	$30.97	$29.74 - $31.75
Q2 2013	18,750	$871	$30.02	$28.02 - $32.11