A detailed history of Chesapeake Asset Management LLC transactions in Merck & Co., Inc. stock. As of the latest transaction made, Chesapeake Asset Management LLC holds 16,166 shares of MRK stock, worth $1.5 Million. This represents 1.31% of its overall portfolio holdings.

Number of Shares
16,166
Previous 17,150 5.74%
Holding current value
$1.5 Million
Previous $1.44 Million 4.31%
% of portfolio
1.31%
Previous 1.34%

Shares

12 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q4 2025

Jan 08, 2026

SELL
$82.49 - $92.93 $81,170 - $91,443
-984 Reduced 5.74%
16,166 $1.5 Million
Q3 2025

Oct 17, 2025

SELL
$77.6 - $87.37 $624,214 - $702,804
-8,044 Reduced 31.93%
17,150 $1.44 Million
Q2 2025

Oct 15, 2025

BUY
$73.47 - $87.12 $1.85 Million - $2.19 Million
25,194 New
25,194 $1.99 Million
Q1 2025

Jan 05, 2026

SELL
$83.01 - $101.02 $284,890 - $346,700
-3,432 Reduced 11.86%
25,510 $2.29 Billion
Q4 2024

Jan 05, 2026

BUY
$96.31 - $114.76 $3,852 - $4,590
40 Added 0.14%
28,942 $2.88 Billion
Q3 2024

Jan 05, 2026

SELL
$111.15 - $128.97 $329,004 - $381,751
-2,960 Reduced 9.29%
28,902 $3.28 Billion
Q2 2024

Jan 05, 2026

BUY
$123.8 - $132.96 $1.82 Million - $1.96 Million
14,712 Added 85.78%
31,862 $3.94 Billion
Q1 2024

Jan 05, 2026

SELL
$113.24 - $131.95 $783,507 - $912,962
-6,919 Reduced 17.75%
32,072 $4.23 Billion
Q4 2023

Jan 05, 2026

BUY
$100.18 - $109.02 $25,946 - $28,236
259 Added 0.67%
38,991 $4.25 Billion
Q3 2023

Jan 05, 2026

SELL
$102.95 - $114.33 $324,086 - $359,910
-3,148 Reduced 7.52%
38,732 $3.99 Billion
Q2 2023

Jan 05, 2026

SELL
$108.61 - $118.38 $303,456 - $330,753
-2,794 Reduced 6.25%
41,880 $4.83 Billion
Q1 2023

Jan 05, 2026

BUY
$102.94 - $114.86 $2.83 Million - $3.16 Million
27,524 Added 160.49%
44,674 $4.75 Billion

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 $235B
  • 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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