MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

GUGGENHEIM CAPITAL LLC's Holding History (CIK: 0001283072)

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

Q4 2025

Shares 773,718 Value ($000) $81,442 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 713,993 Value ($000) $59,925 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 613,195 Value ($000) $48,541 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 499,975 Value ($000) $44,878 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 387,396 Value ($000) $38,538 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 358,486 Value ($000) $40,710 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 394,358 Value ($000) $48,822 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 450,233 Value ($000) $59,408 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 562,960 Value ($000) $61,374 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 602,675 Value ($000) $62,045 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 738,798 Value ($000) $85,250 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 842,492 Value ($000) $89,633 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 931,079 Value ($000) $103,303 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 1,000,624 Value ($000) $86,174 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 1,000,868 Value ($000) $91,249 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 994,919 Value ($000) $81,633 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 916,392 Value ($000) $70,231 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 876,409 Value ($000) $65,827 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 765,575 Value ($000) $59,539 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 681,442 Value ($000) $52,532 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 604,620 Value ($000) $49,459 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 528,506 Value ($000) $43,840 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 453,447 Value ($000) $35,066 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 440,510 Value ($000) $33,893 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 521,032 Value ($000) $47,387 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 511,935 Value ($000) $43,094 Avg Close $65.47 Range $61.22 - $68.01

Q4 2018

Shares 684,936 Value ($000) $52,336 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 646,082 Value ($000) $45,833 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 549,052 Value ($000) $33,325 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 1,607,997 Value ($000) $87,587 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 1,540,666 Value ($000) $86,694 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 1,401,835 Value ($000) $89,760 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 1,383,411 Value ($000) $88,662 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 1,387,038 Value ($000) $88,133 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 1,453,817 Value ($000) $85,587 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 1,211,138 Value ($000) $75,587 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 1,356,737 Value ($000) $78,161 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 1,603,793 Value ($000) $84,857 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 1,539,531 Value ($000) $81,320 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 1,405,783 Value ($000) $69,432 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 1,572,853 Value ($000) $89,544 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 1,699,254 Value ($000) $97,676 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 1,408,828 Value ($000) $80,008 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 1,386,915 Value ($000) $82,215 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 1,329,117 Value ($000) $76,892 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 1,419,632 Value ($000) $80,593 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 1,510,606 Value ($000) $75,606 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 1,414,922 Value ($000) $67,368 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 1,416,558 Value ($000) $65,796 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	773,718	$81,442	$93.24	$81.31 - $107.59
Q3 2025	713,993	$59,925	$81.01	$75.27 - $86.24
Q2 2025	613,195	$48,541	$77.39	$71.26 - $87.25
Q1 2025	499,975	$44,878	$90.12	$78.10 - $99.24
Q4 2024	387,396	$38,538	$98.70	$90.33 - $109.75
Q3 2024	358,486	$40,710	$112.96	$105.16 - $123.40
Q2 2024	394,358	$48,822	$121.72	$114.80 - $127.87
Q1 2024	450,233	$59,408	$115.77	$102.41 - $125.66
Q4 2023	562,960	$61,374	$96.81	$92.34 - $102.48
Q3 2023	602,675	$62,045	$99.84	$95.67 - $106.04
Q2 2023	738,798	$85,250	$104.47	$97.02 - $109.95
Q1 2023	842,492	$89,633	$98.68	$92.86 - $105.40
Q4 2022	931,079	$103,303	$92.80	$77.99 - $103.03
Q3 2022	1,000,624	$86,174	$80.41	$76.51 - $85.75
Q2 2022	1,000,868	$91,249	$79.21	$72.83 - $86.09
Q1 2022	994,919	$81,633	$69.85	$64.44 - $74.38
Q4 2021	916,392	$70,231	$69.89	$62.63 - $80.06
Q3 2021	876,409	$65,827	$66.14	$62.09 - $68.78
Q2 2021	765,575	$59,539	$64.14	$59.83 - $67.79
Q1 2021	681,442	$52,532	$63.06	$58.39 - $69.69
Q4 2020	604,620	$49,459	$64.85	$59.73 - $68.80
Q3 2020	528,506	$43,840	$65.93	$60.98 - $70.41
Q2 2020	453,447	$35,066	$62.87	$58.07 - $67.36
Q1 2020	440,510	$33,893	$65.09	$51.91 - $72.71
Q4 2019	521,032	$47,387	$67.55	$62.89 - $73.10
Q3 2019	511,935	$43,094	$65.47	$61.22 - $68.01
Q4 2018	684,936	$52,336	$56.50	$50.42 - $61.17
Q3 2018	646,082	$45,833	$50.65	$45.40 - $54.60
Q2 2018	549,052	$33,325	$44.52	$39.72 - $47.34
Q1 2018	1,607,997	$87,587	$42.25	$39.59 - $47.54
Q4 2017	1,540,666	$86,694	$43.00	$39.63 - $47.96
Q3 2017	1,401,835	$89,760	$46.68	$44.87 - $49.08
Q2 2017	1,383,411	$88,662	$46.54	$45.06 - $48.72
Q1 2017	1,387,038	$88,133	$46.06	$42.70 - $48.31
Q4 2016	1,453,817	$85,587	$44.08	$41.83 - $46.98
Q3 2016	1,211,138	$75,587	$43.73	$40.74 - $45.59
Q2 2016	1,356,737	$78,161	$39.48	$37.06 - $41.09
Q1 2016	1,603,793	$84,857	$36.03	$33.60 - $37.88
Q4 2015	1,539,531	$81,320	$36.77	$33.58 - $38.73
Q3 2015	1,405,783	$69,432	$38.40	$31.46 - $41.36
Q2 2015	1,572,853	$89,544	$40.23	$38.42 - $42.17
Q1 2015	1,699,254	$97,676	$40.30	$37.94 - $43.13
Q4 2014	1,408,828	$80,008	$39.35	$35.32 - $41.85
Q3 2014	1,386,915	$82,215	$39.37	$37.12 - $41.03
Q2 2014	1,329,117	$76,892	$37.96	$36.06 - $39.67
Q1 2014	1,419,632	$80,593	$35.76	$32.43 - $37.92
Q4 2013	1,510,606	$75,606	$31.29	$29.09 - $32.94
Q3 2013	1,414,922	$67,368	$30.97	$29.74 - $31.75
Q2 2013	1,416,558	$65,796	$30.02	$28.02 - $32.11