A detailed history of Main Street Research LLC transactions in Merck & Co., Inc. stock. As of the latest transaction made, Main Street Research LLC holds 9,689 shares of MRK stock, worth $969,481. This represents 0.07% of its overall portfolio holdings.

Number of Shares
9,689
Previous 5,775 67.77%
Holding current value
$969,481
Previous $714,000 54.06%
% of portfolio
0.07%
Previous 0.05%

Shares

29 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 12, 2024

BUY
$111.15 - $128.97 $435,041 - $504,788
3,914 Added 67.77%
9,689 $1.1 Million
Q2 2024

Jul 29, 2024

BUY
$123.8 - $132.96 $38,749 - $41,616
313 Added 5.73%
5,775 $714,000
Q1 2024

May 01, 2024

SELL
$113.24 - $131.95 $23,667 - $27,577
-209 Reduced 3.69%
5,462 $720,000
Q4 2023

Jan 30, 2024

SELL
$100.18 - $109.02 $10.2 Million - $11.1 Million
-101,637 Reduced 94.72%
5,671 $618,000
Q3 2023

Nov 03, 2023

SELL
$102.95 - $114.33 $80,198 - $89,063
-779 Reduced 0.72%
107,308 $11 Million
Q2 2023

Aug 08, 2023

BUY
$108.61 - $118.38 $11 Million - $12 Million
101,658 Added 1581.24%
108,087 $12.5 Million
Q1 2023

May 01, 2023

SELL
$102.94 - $114.86 $32,529 - $36,295
-316 Reduced 4.68%
6,429 $683,000
Q4 2022

Feb 06, 2023

BUY
$87.44 - $112.11 $32,702 - $41,929
374 Added 5.87%
6,745 $748,000
Q3 2022

Nov 10, 2022

BUY
$84.53 - $94.96 $127,640 - $143,389
1,510 Added 31.06%
6,371 $549,000
Q2 2022

Aug 12, 2022

SELL
$83.49 - $94.64 $126,654 - $143,568
-1,517 Reduced 23.78%
4,861 $443,000
Q1 2022

May 05, 2022

SELL
$73.51 - $82.4 $69,540 - $77,950
-946 Reduced 12.92%
6,378 $523,000
Q4 2021

Feb 09, 2022

BUY
$72.28 - $90.54 $81,387 - $101,948
1,126 Added 18.17%
7,324 $561,000
Q3 2021

Nov 12, 2021

SELL
$71.68 - $78.83 $415,600 - $457,056
-5,798 Closed
0 $0
Q2 2021

Aug 06, 2021

SELL
$70.31 - $77.77 $17,577 - $19,442
-250 Reduced 4.13%
5,798 $451,000
Q1 2021

May 07, 2021

SELL
$68.86 - $81.11 $89,931 - $105,929
-1,306 Reduced 17.76%
6,048 $466,000
Q4 2020

Feb 12, 2021

SELL
$71.77 - $79.65 $32,870 - $36,479
-458 Reduced 5.86%
7,354 $602,000
Q3 2020

Nov 10, 2020

BUY
$73.18 - $82.95 $571,682 - $648,005
7,812 New
7,812 $648,000
Q2 2020

Jul 29, 2020

BUY
$70.42 - $80.13 $845 - $961
12 Added 0.13%
9,162 $709,000
Q1 2020

May 01, 2020

SELL
$63.36 - $87.82 $9.34 Million - $13 Million
-147,469 Reduced 94.16%
9,150 $704,000
Q4 2019

Jan 28, 2020

SELL
$77.58 - $87.54 $70,985 - $80,099
-915 Reduced 0.58%
156,619 $14.2 Million
Q3 2019

Oct 21, 2019

SELL
$76.08 - $82.93 $570,447 - $621,809
-7,498 Closed
0 $0
Q2 2019

Aug 08, 2019

BUY
$69.84 - $81.59 $523,660 - $611,761
7,498 New
7,498 $629,000
Q1 2019

May 13, 2019

BUY
$69.58 - $79.36 $16,490 - $18,808
237 Added 3.48%
7,040 $586,000
Q4 2018

Feb 13, 2019

SELL
$65.24 - $75.71 $450,025 - $522,247
-6,898 Closed
0 $0
Q3 2018

Nov 05, 2018

BUY
$57.69 - $67.84 $6,807 - $8,005
118 Added 1.74%
6,898 $489,000
Q2 2018

Jul 25, 2018

SELL
$50.83 - $59.72 $13,673 - $16,064
-269 Reduced 3.82%
6,780 $412,000
Q1 2018

May 08, 2018

SELL
$50.96 - $59.23 $11,160 - $12,971
-219 Reduced 3.01%
7,049 $384,000
Q4 2017

Feb 05, 2018

SELL
$51.62 - $61.64 $284,735 - $340,006
-5,516 Reduced 43.15%
7,268 $409,000
Q3 2017

Oct 16, 2017

BUY
$58.67 - $63.13 $750,037 - $807,053
12,784
12,784 $819,000

Others Institutions Holding MRK

About Merck & Co., Inc.


  • Ticker MRK
  • Exchange NYSE
  • Sector Healthcare
  • Industry Drug Manufacturers—General
  • Shares Outstandng 2,533,280,000
  • Market Cap $253B
  • Description
  • Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiovascular, and diabetes, as well as vaccine products, ...
More about MRK
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