MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q4 2025

Shares 164,462 Value ($000) $17,311 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 161,264 Value ($000) $13,535 Avg Close $81.01 Range $75.27 - $86.24

Q2 2025

Shares 165,938 Value ($000) $13,136 Avg Close $77.39 Range $71.26 - $87.25

Q1 2025

Shares 202,663 Value ($000) $18,191 Avg Close $90.12 Range $78.10 - $99.24

Q4 2024

Shares 203,328 Value ($000) $20,227 Avg Close $98.70 Range $90.33 - $109.75

Q3 2024

Shares 206,238 Value ($000) $23,420 Avg Close $112.96 Range $105.16 - $123.40

Q2 2024

Shares 199,735 Value ($000) $24,727 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 198,137 Value ($000) $26,144 Avg Close $115.77 Range $102.41 - $125.66

Q4 2023

Shares 198,275 Value ($000) $21,616 Avg Close $96.81 Range $92.34 - $102.48

Q3 2023

Shares 213,488 Value ($000) $21,979 Avg Close $99.84 Range $95.67 - $106.04

Q2 2023

Shares 265,865 Value ($000) $30,678 Avg Close $104.47 Range $97.02 - $109.95

Q1 2023

Shares 278,112 Value ($000) $29,588 Avg Close $98.68 Range $92.86 - $105.40

Q4 2022

Shares 289,026 Value ($000) $32,067 Avg Close $92.80 Range $77.99 - $103.03

Q3 2022

Shares 310,229 Value ($000) $26,717 Avg Close $80.41 Range $76.51 - $85.75

Q2 2022

Shares 320,308 Value ($000) $29,203 Avg Close $79.21 Range $72.83 - $86.09

Q1 2022

Shares 308,994 Value ($000) $25,353 Avg Close $69.85 Range $64.44 - $74.38

Q4 2021

Shares 292,326 Value ($000) $22,403 Avg Close $69.89 Range $62.63 - $80.06

Q3 2021

Shares 278,256 Value ($000) $20,900 Avg Close $66.14 Range $62.09 - $68.78

Q2 2021

Shares 284,172 Value ($000) $22,100 Avg Close $64.14 Range $59.83 - $67.79

Q1 2021

Shares 264,918 Value ($000) $20,423 Avg Close $63.06 Range $58.39 - $69.69

Q4 2020

Shares 267,729 Value ($000) $21,900 Avg Close $64.85 Range $59.73 - $68.80

Q3 2020

Shares 269,585 Value ($000) $22,362 Avg Close $65.93 Range $60.98 - $70.41

Q2 2020

Shares 274,890 Value ($000) $21,258 Avg Close $62.87 Range $58.07 - $67.36

Q1 2020

Shares 316,966 Value ($000) $24,387 Avg Close $65.09 Range $51.91 - $72.71

Q4 2019

Shares 285,120 Value ($000) $25,932 Avg Close $67.55 Range $62.89 - $73.10

Q3 2019

Shares 295,463 Value ($000) $24,873 Avg Close $65.47 Range $61.22 - $68.01

Q2 2019

Shares 293,888 Value ($000) $24,643 Avg Close $62.14 Range $55.86 - $67.34

Q1 2019

Shares 300,872 Value ($000) $25,024 Avg Close $60.29 Range $55.35 - $64.55

Q4 2018

Shares 292,896 Value ($000) $22,380 Avg Close $56.50 Range $50.42 - $61.17

Q3 2018

Shares 293,681 Value ($000) $20,834 Avg Close $50.65 Range $45.40 - $54.60

Q2 2018

Shares 284,741 Value ($000) $17,284 Avg Close $44.52 Range $39.72 - $47.34

Q1 2018

Shares 280,981 Value ($000) $15,305 Avg Close $42.25 Range $39.59 - $47.54

Q4 2017

Shares 265,605 Value ($000) $14,945 Avg Close $43.00 Range $39.63 - $47.96

Q3 2017

Shares 295,613 Value ($000) $18,928 Avg Close $46.68 Range $44.87 - $49.08

Q2 2017

Shares 286,148 Value ($000) $18,339 Avg Close $46.54 Range $45.06 - $48.72

Q1 2017

Shares 294,404 Value ($000) $18,706 Avg Close $46.06 Range $42.70 - $48.31

Q4 2016

Shares 295,690 Value ($000) $17,407 Avg Close $44.08 Range $41.83 - $46.98

Q3 2016

Shares 303,931 Value ($000) $18,968 Avg Close $43.73 Range $40.74 - $45.59

Q2 2016

Shares 339,467 Value ($000) $19,557 Avg Close $39.48 Range $37.06 - $41.09

Q1 2016

Shares 359,422 Value ($000) $19,017 Avg Close $36.03 Range $33.60 - $37.88

Q4 2015

Shares 358,380 Value ($000) $18,930 Avg Close $36.77 Range $33.58 - $38.73

Q3 2015

Shares 355,480 Value ($000) $17,557 Avg Close $38.40 Range $31.46 - $41.36

Q2 2015

Shares 334,678 Value ($000) $19,053 Avg Close $40.23 Range $38.42 - $42.17

Q1 2015

Shares 344,011 Value ($000) $19,773 Avg Close $40.30 Range $37.94 - $43.13

Q4 2014

Shares 332,581 Value ($000) $18,887 Avg Close $39.35 Range $35.32 - $41.85

Q3 2014

Shares 344,337 Value ($000) $20,412 Avg Close $39.37 Range $37.12 - $41.03

Q2 2014

Shares 384,383 Value ($000) $22,236 Avg Close $37.96 Range $36.06 - $39.67

Q1 2014

Shares 405,174 Value ($000) $23,001 Avg Close $35.76 Range $32.43 - $37.92

Q4 2013

Shares 376,729 Value ($000) $18,855 Avg Close $31.29 Range $29.09 - $32.94

Q3 2013

Shares 393,054 Value ($000) $18,712 Avg Close $30.97 Range $29.74 - $31.75

Q2 2013

Shares 331,861 Value ($000) $15,415 Avg Close $30.02 Range $28.02 - $32.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	164,462	$17,311	$93.24	$81.31 - $107.59
Q3 2025	161,264	$13,535	$81.01	$75.27 - $86.24
Q2 2025	165,938	$13,136	$77.39	$71.26 - $87.25
Q1 2025	202,663	$18,191	$90.12	$78.10 - $99.24
Q4 2024	203,328	$20,227	$98.70	$90.33 - $109.75
Q3 2024	206,238	$23,420	$112.96	$105.16 - $123.40
Q2 2024	199,735	$24,727	$121.72	$114.80 - $127.87
Q1 2024	198,137	$26,144	$115.77	$102.41 - $125.66
Q4 2023	198,275	$21,616	$96.81	$92.34 - $102.48
Q3 2023	213,488	$21,979	$99.84	$95.67 - $106.04
Q2 2023	265,865	$30,678	$104.47	$97.02 - $109.95
Q1 2023	278,112	$29,588	$98.68	$92.86 - $105.40
Q4 2022	289,026	$32,067	$92.80	$77.99 - $103.03
Q3 2022	310,229	$26,717	$80.41	$76.51 - $85.75
Q2 2022	320,308	$29,203	$79.21	$72.83 - $86.09
Q1 2022	308,994	$25,353	$69.85	$64.44 - $74.38
Q4 2021	292,326	$22,403	$69.89	$62.63 - $80.06
Q3 2021	278,256	$20,900	$66.14	$62.09 - $68.78
Q2 2021	284,172	$22,100	$64.14	$59.83 - $67.79
Q1 2021	264,918	$20,423	$63.06	$58.39 - $69.69
Q4 2020	267,729	$21,900	$64.85	$59.73 - $68.80
Q3 2020	269,585	$22,362	$65.93	$60.98 - $70.41
Q2 2020	274,890	$21,258	$62.87	$58.07 - $67.36
Q1 2020	316,966	$24,387	$65.09	$51.91 - $72.71
Q4 2019	285,120	$25,932	$67.55	$62.89 - $73.10
Q3 2019	295,463	$24,873	$65.47	$61.22 - $68.01
Q2 2019	293,888	$24,643	$62.14	$55.86 - $67.34
Q1 2019	300,872	$25,024	$60.29	$55.35 - $64.55
Q4 2018	292,896	$22,380	$56.50	$50.42 - $61.17
Q3 2018	293,681	$20,834	$50.65	$45.40 - $54.60
Q2 2018	284,741	$17,284	$44.52	$39.72 - $47.34
Q1 2018	280,981	$15,305	$42.25	$39.59 - $47.54
Q4 2017	265,605	$14,945	$43.00	$39.63 - $47.96
Q3 2017	295,613	$18,928	$46.68	$44.87 - $49.08
Q2 2017	286,148	$18,339	$46.54	$45.06 - $48.72
Q1 2017	294,404	$18,706	$46.06	$42.70 - $48.31
Q4 2016	295,690	$17,407	$44.08	$41.83 - $46.98
Q3 2016	303,931	$18,968	$43.73	$40.74 - $45.59
Q2 2016	339,467	$19,557	$39.48	$37.06 - $41.09
Q1 2016	359,422	$19,017	$36.03	$33.60 - $37.88
Q4 2015	358,380	$18,930	$36.77	$33.58 - $38.73
Q3 2015	355,480	$17,557	$38.40	$31.46 - $41.36
Q2 2015	334,678	$19,053	$40.23	$38.42 - $42.17
Q1 2015	344,011	$19,773	$40.30	$37.94 - $43.13
Q4 2014	332,581	$18,887	$39.35	$35.32 - $41.85
Q3 2014	344,337	$20,412	$39.37	$37.12 - $41.03
Q2 2014	384,383	$22,236	$37.96	$36.06 - $39.67
Q1 2014	405,174	$23,001	$35.76	$32.43 - $37.92
Q4 2013	376,729	$18,855	$31.29	$29.09 - $32.94
Q3 2013	393,054	$18,712	$30.97	$29.74 - $31.75
Q2 2013	331,861	$15,415	$30.02	$28.02 - $32.11