A detailed history of O'Brien Greene & Co. Inc transactions in Merck & Co., Inc. stock. As of the latest transaction made, O'Brien Greene & Co. Inc holds 5,384 shares of MRK stock, worth $547,283. This represents 0.22% of its overall portfolio holdings.

Number of Shares
5,384
Previous 4,995 7.79%
Holding current value
$547,283
Previous $659,000 1.06%
% of portfolio
0.22%
Previous 0.22%

Shares

13 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q2 2024

Aug 12, 2024

BUY
$123.8 - $132.96 $48,158 - $51,721
389 Added 7.79%
5,384 $666,000
Q4 2023

Feb 02, 2024

SELL
$100.18 - $109.02 $10,018 - $10,902
-100 Reduced 1.96%
4,995 $544,000
Q2 2023

Aug 15, 2023

SELL
$108.61 - $118.38 $1.11 Million - $1.21 Million
-10,190 Reduced 66.67%
5,095 $588,000
Q2 2023

Jul 20, 2023

BUY
$108.61 - $118.38 $1.11 Million - $1.21 Million
10,190 Added 200.0%
15,285 $1.76 Million
Q4 2022

Feb 02, 2023

SELL
$87.44 - $112.11 $1.02 Million - $1.3 Million
-11,627 Reduced 69.53%
5,095 $566,000
Q3 2022

Nov 09, 2022

BUY
$84.53 - $94.96 $942,340 - $1.06 Million
11,148 Added 200.0%
16,722 $1.44 Million
Q1 2022

May 18, 2022

SELL
$73.51 - $82.4 $1,984 - $2,224
-27 Reduced 0.48%
5,574 $458,000
Q4 2021

Feb 08, 2022

BUY
$72.28 - $90.54 $11,998 - $15,029
166 Added 3.05%
5,601 $429,000
Q3 2021

Nov 12, 2021

SELL
$71.68 - $78.83 $716 - $788
-10 Reduced 0.18%
5,435 $408,000
Q1 2021

May 12, 2021

SELL
$68.86 - $81.11 $27,544 - $32,444
-400 Reduced 6.84%
5,445 $420,000
Q4 2020

Feb 04, 2021

SELL
$71.77 - $79.65 $10,765 - $11,947
-150 Reduced 2.5%
5,845 $478,000
Q1 2019

Apr 29, 2019

BUY
$69.58 - $79.36 $23,170 - $26,426
333 Added 5.88%
5,995 $499,000
Q4 2018

Feb 27, 2019

BUY
$65.24 - $75.71 $369,388 - $428,670
5,662 New
5,662 $433,000

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 $258B
  • 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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