MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2025

Shares 711,119 Value ($000) $75,434 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 683,912 Value ($000) $57,956 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 809,798 Value ($000) $64,764 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 677,428 Value ($000) $61,358 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 861,944 Value ($000) $86,446 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 809,874 Value ($000) $92,595 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 711,817 Value ($000) $88,678 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 707,835 Value ($000) $93,945 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 719,479 Value ($000) $78,438 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 749,990 Value ($000) $77,211 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 757,876 Value ($000) $87,451 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 774,146 Value ($000) $82 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 766,435 Value ($000) $85 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 767,128 Value ($000) $66,189 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 778,632 Value ($000) $70,988 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 785,339 Value ($000) $64,437 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 791,010 Value ($000) $64,451 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 804,344 Value ($000) $60,414 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 841,137 Value ($000) $65,415 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 890,904 Value ($000) $68,680 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 994,088 Value ($000) $81,316 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 994,243 Value ($000) $82,472 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 1,000,549 Value ($000) $77,372 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 1,036,534 Value ($000) $79,751 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 1,070,736 Value ($000) $97,383 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 1,075,428 Value ($000) $90,530 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 1,088,568 Value ($000) $91,276 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 1,135,024 Value ($000) $94,400 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 1,135,515 Value ($000) $86,765 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 1,112,496 Value ($000) $78,920 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 1,102,436 Value ($000) $66,918 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 1,057,716 Value ($000) $57,556 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 1,096,796 Value ($000) $61,717 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 1,121,974 Value ($000) $71,840 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 1,155,650 Value ($000) $74,265 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 1,124,724 Value ($000) $71,465 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 1,110,649 Value ($000) $65,384 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 1,089,137 Value ($000) $67,973 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 1,033,987 Value ($000) $59,568 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 999,017 Value ($000) $52,858 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 1,023,837 Value ($000) $54,079 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 1,028,320 Value ($000) $51,144 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 1,040,745 Value ($000) $59,250 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 1,052,345 Value ($000) $60,489 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 1,042,874 Value ($000) $59,225 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 1,170,166 Value ($000) $69,367 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 1,174,141 Value ($000) $67,924 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 1,237,868 Value ($000) $70,274 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 1,250,971 Value ($000) $62,611 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 1,321,448 Value ($000) $62,913 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 1,379,961 Value ($000) $64,099 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	711,119	$75,434	$93.24	$81.31 - $107.59
Q3 2025	683,912	$57,956	$81.01	$75.27 - $86.24
Q2 2025	809,798	$64,764	$77.39	$71.26 - $87.25
Q1 2025	677,428	$61,358	$90.12	$78.10 - $99.24
Q4 2024	861,944	$86,446	$98.70	$90.33 - $109.75
Q3 2024	809,874	$92,595	$112.96	$105.16 - $123.40
Q2 2024	711,817	$88,678	$121.72	$114.80 - $127.87
Q1 2024	707,835	$93,945	$115.77	$102.41 - $125.66
Q4 2023	719,479	$78,438	$96.81	$92.34 - $102.48
Q3 2023	749,990	$77,211	$99.84	$95.67 - $106.04
Q2 2023	757,876	$87,451	$104.47	$97.02 - $109.95
Q1 2023	774,146	$82	$98.68	$92.86 - $105.40
Q4 2022	766,435	$85	$92.80	$77.99 - $103.03
Q3 2022	767,128	$66,189	$80.41	$76.51 - $85.75
Q2 2022	778,632	$70,988	$79.21	$72.83 - $86.09
Q1 2022	785,339	$64,437	$69.85	$64.44 - $74.38
Q4 2021	791,010	$64,451	$69.89	$62.63 - $80.06
Q3 2021	804,344	$60,414	$66.14	$62.09 - $68.78
Q2 2021	841,137	$65,415	$64.14	$59.83 - $67.79
Q1 2021	890,904	$68,680	$63.06	$58.39 - $69.69
Q4 2020	994,088	$81,316	$64.85	$59.73 - $68.80
Q3 2020	994,243	$82,472	$65.93	$60.98 - $70.41
Q2 2020	1,000,549	$77,372	$62.87	$58.07 - $67.36
Q1 2020	1,036,534	$79,751	$65.09	$51.91 - $72.71
Q4 2019	1,070,736	$97,383	$67.55	$62.89 - $73.10
Q3 2019	1,075,428	$90,530	$65.47	$61.22 - $68.01
Q2 2019	1,088,568	$91,276	$62.14	$55.86 - $67.34
Q1 2019	1,135,024	$94,400	$60.29	$55.35 - $64.55
Q4 2018	1,135,515	$86,765	$56.50	$50.42 - $61.17
Q3 2018	1,112,496	$78,920	$50.65	$45.40 - $54.60
Q2 2018	1,102,436	$66,918	$44.52	$39.72 - $47.34
Q1 2018	1,057,716	$57,556	$42.25	$39.59 - $47.54
Q4 2017	1,096,796	$61,717	$43.00	$39.63 - $47.96
Q3 2017	1,121,974	$71,840	$46.68	$44.87 - $49.08
Q2 2017	1,155,650	$74,265	$46.54	$45.06 - $48.72
Q1 2017	1,124,724	$71,465	$46.06	$42.70 - $48.31
Q4 2016	1,110,649	$65,384	$44.08	$41.83 - $46.98
Q3 2016	1,089,137	$67,973	$43.73	$40.74 - $45.59
Q2 2016	1,033,987	$59,568	$39.48	$37.06 - $41.09
Q1 2016	999,017	$52,858	$36.03	$33.60 - $37.88
Q4 2015	1,023,837	$54,079	$36.77	$33.58 - $38.73
Q3 2015	1,028,320	$51,144	$38.40	$31.46 - $41.36
Q2 2015	1,040,745	$59,250	$40.23	$38.42 - $42.17
Q1 2015	1,052,345	$60,489	$40.30	$37.94 - $43.13
Q4 2014	1,042,874	$59,225	$39.35	$35.32 - $41.85
Q3 2014	1,170,166	$69,367	$39.37	$37.12 - $41.03
Q2 2014	1,174,141	$67,924	$37.96	$36.06 - $39.67
Q1 2014	1,237,868	$70,274	$35.76	$32.43 - $37.92
Q4 2013	1,250,971	$62,611	$31.29	$29.09 - $32.94
Q3 2013	1,321,448	$62,913	$30.97	$29.74 - $31.75
Q2 2013	1,379,961	$64,099	$30.02	$28.02 - $32.11