MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

DEAN INVESTMENT ASSOCIATES, LLC's Holding History (CIK: 0000846797)

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

Q4 2025

Shares 33,870 Value ($000) $3,565 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 35,452 Value ($000) $2,975 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 36,125 Value ($000) $2,860 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 35,546 Value ($000) $3,191 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 39,076 Value ($000) $3,887 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 39,568 Value ($000) $4,493 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 40,796 Value ($000) $5,051 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 41,754 Value ($000) $5,509 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 41,886 Value ($000) $4,566 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 42,460 Value ($000) $4,371 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 42,570 Value ($000) $4,912 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 42,130 Value ($000) $4,482 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 52,088 Value ($000) $5,779 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 42,119 Value ($000) $3,627 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 35,938 Value ($000) $3,276 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 35,728 Value ($000) $2,931 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 35,403 Value ($000) $2,713 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 35,077 Value ($000) $2,635 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 34,181 Value ($000) $2,658 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 33,195 Value ($000) $2,559 Avg Close $63.06 Range $58.39 - $69.69

Q4 2018

Shares 20,951 Value ($000) $1,601 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 17,951 Value ($000) $1,273 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 26,075 Value ($000) $1,583 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 26,462 Value ($000) $1,441 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 26,117 Value ($000) $1,470 Avg Close $43.00 Range $39.63 - $47.96

Q4 2013

Shares 9,198 Value ($000) $460 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 8,593 Value ($000) $409 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 7,663 Value ($000) $356 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	33,870	$3,565	$93.24	$81.31 - $107.59
Q3 2025	35,452	$2,975	$81.01	$75.27 - $86.24
Q2 2025	36,125	$2,860	$77.39	$71.26 - $87.25
Q1 2025	35,546	$3,191	$90.12	$78.10 - $99.24
Q4 2024	39,076	$3,887	$98.70	$90.33 - $109.75
Q3 2024	39,568	$4,493	$112.96	$105.16 - $123.40
Q2 2024	40,796	$5,051	$121.72	$114.80 - $127.87
Q1 2024	41,754	$5,509	$115.77	$102.41 - $125.66
Q4 2023	41,886	$4,566	$96.81	$92.34 - $102.48
Q3 2023	42,460	$4,371	$99.84	$95.67 - $106.04
Q2 2023	42,570	$4,912	$104.47	$97.02 - $109.95
Q1 2023	42,130	$4,482	$98.68	$92.86 - $105.40
Q4 2022	52,088	$5,779	$92.80	$77.99 - $103.03
Q3 2022	42,119	$3,627	$80.41	$76.51 - $85.75
Q2 2022	35,938	$3,276	$79.21	$72.83 - $86.09
Q1 2022	35,728	$2,931	$69.85	$64.44 - $74.38
Q4 2021	35,403	$2,713	$69.89	$62.63 - $80.06
Q3 2021	35,077	$2,635	$66.14	$62.09 - $68.78
Q2 2021	34,181	$2,658	$64.14	$59.83 - $67.79
Q1 2021	33,195	$2,559	$63.06	$58.39 - $69.69
Q4 2018	20,951	$1,601	$56.50	$50.42 - $61.17
Q3 2018	17,951	$1,273	$50.65	$45.40 - $54.60
Q2 2018	26,075	$1,583	$44.52	$39.72 - $47.34
Q1 2018	26,462	$1,441	$42.25	$39.59 - $47.54
Q4 2017	26,117	$1,470	$43.00	$39.63 - $47.96
Q4 2013	9,198	$460	$31.29	$29.09 - $32.94
Q3 2013	8,593	$409	$30.97	$29.74 - $31.75
Q2 2013	7,663	$356	$30.02	$28.02 - $32.11