Janus Henderson Group PLC Merck & Co., Inc. Transaction History

Janus Henderson Group PLC

  • $207 Billion
  • Q3 2025

A detailed history of Janus Henderson Group PLC transactions in Merck & Co., Inc. stock. As of the latest transaction made, Janus Henderson Group PLC holds 2,115,541 shares of MRK stock, worth $196 Million. This represents 0.09% of its overall portfolio holdings.

Number of Shares
2,115,541
Previous 542,117 290.24%
Holding current value
$196 Million
Previous $42.9 Million 313.76%
% of portfolio
0.09%
Previous 0.02%

Shares

34 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 14, 2025
BUY
$77.6 - $87.37 $122 Million - $137 Million
1,573,424 Added 290.24%
2,115,541 $178 Million
Q2 2025

Aug 14, 2025
SELL
$73.47 - $87.12 $163 Million - $194 Million
-2,223,249 Reduced 80.4%
542,117 $42.9 Million
Q1 2025

May 15, 2025
SELL
$83.01 - $101.02 $257 Million - $313 Million
-3,099,139 Reduced 52.85%
2,765,366 $248 Million
Q4 2024

Feb 14, 2025
SELL
$96.31 - $114.76 $280 Million - $333 Million
-2,905,121 Reduced 33.13%
5,864,505 $583 Million
Q3 2024

Nov 14, 2024
SELL
$111.15 - $128.97 $214 Million - $248 Million
-1,921,052 Reduced 17.97%
8,769,626 $996 Million
Q2 2024

Aug 14, 2024
BUY
$123.8 - $132.96 $28.4 Million - $30.5 Million
229,514 Added 2.19%
10,690,678 $1.32 Billion
Q1 2024

May 15, 2024
SELL
$113.24 - $131.95 $181 Million - $211 Million
-1,595,753 Reduced 13.24%
10,461,164 $1.38 Billion
Q4 2023

Feb 14, 2024
SELL
$100.18 - $109.02 $27.4 Million - $29.8 Million
-273,178 Reduced 2.22%
12,056,917 $1.31 Billion
Q3 2023

Nov 14, 2023
SELL
$102.95 - $114.33 $119 Million - $132 Million
-1,154,477 Reduced 8.56%
12,330,095 $1.27 Billion
Q2 2023

Aug 14, 2023
SELL
$108.61 - $118.38 $18.7 Million - $20.4 Million
-172,415 Reduced 1.26%
13,484,572 $1.56 Billion
Q1 2023

May 15, 2023
BUY
$102.94 - $114.86 $27.5 Million - $30.6 Million
266,757 Added 1.99%
13,656,987 $1.45 Billion
Q4 2022

Feb 14, 2023
SELL
$87.44 - $112.11 $26.7 Million - $34.2 Million
-305,063 Reduced 2.23%
13,390,230 $1.49 Billion
Q3 2022

Nov 14, 2022
BUY
$84.53 - $94.96 $234 Million - $263 Million
2,764,651 Added 25.29%
13,695,293 $1.18 Billion
Q2 2022

Aug 15, 2022
SELL
$83.49 - $94.64 $85.8 Million - $97.2 Million
-1,027,093 Reduced 8.59%
10,930,642 $997 Million
Q1 2022

May 16, 2022
SELL
$73.51 - $82.4 $46.9 Million - $52.6 Million
-638,043 Reduced 5.07%
11,957,735 $981 Million
Q4 2021

Feb 14, 2022
SELL
$72.28 - $90.54 $353 Million - $442 Million
-4,881,403 Reduced 27.93%
12,595,778 $965 Million
Q3 2021

Nov 16, 2021
SELL
$71.68 - $78.83 $16.7 Million - $18.4 Million
-233,106 Reduced 1.32%
17,477,181 $1.31 Billion
Q2 2021

Aug 16, 2021
SELL
$70.31 - $77.77 $405 Million - $448 Million
-5,758,495 Reduced 24.54%
17,710,287 $1.38 Billion
Q1 2021

May 17, 2021
SELL
$68.86 - $81.11 $30.3 Million - $35.6 Million
-439,522 Reduced 1.84%
23,468,782 $1.81 Billion
Q4 2020

Feb 16, 2021
SELL
$71.77 - $79.65 $275 Million - $305 Million
-3,832,056 Reduced 13.81%
23,908,304 $1.96 Billion
Q3 2020

Nov 16, 2020
SELL
$73.18 - $82.95 $282 Million - $320 Million
-3,855,376 Reduced 12.2%
27,740,360 $2.3 Billion
Q2 2020

Aug 14, 2020
BUY
$70.42 - $80.13 $161 Million - $183 Million
2,287,614 Added 7.81%
31,595,736 $2.44 Billion
Q1 2020

May 14, 2020
BUY
$63.36 - $87.82 $22.4 Million - $31.1 Million
353,907 Added 1.22%
29,308,122 $2.26 Billion
Q4 2019

Feb 18, 2020
BUY
$77.58 - $87.54 $319 Million - $360 Million
4,108,756 Added 16.54%
28,954,215 $2.63 Billion
Q3 2019

Nov 14, 2019
BUY
$76.08 - $82.93 $419,200 - $456,944
5,510 Added 0.02%
24,845,459 $2 Billion
Q2 2019

Jul 31, 2019
BUY
$69.84 - $81.59 $125 Million - $146 Million
1,790,405 Added 7.77%
24,839,949 $2.08 Billion
Q1 2019

Apr 30, 2019
BUY
$69.58 - $79.36 $122 Million - $139 Million
1,747,557 Added 8.2%
23,049,544 $1.92 Billion
Q4 2018

Feb 06, 2019
BUY
$65.24 - $75.71 $51 Million - $59.2 Million
782,438 Added 3.81%
21,301,987 $1.63 Billion
Q3 2018

Nov 09, 2018
BUY
$57.69 - $67.84 $463 Million - $545 Million
8,032,634 Added 64.33%
20,519,549 $1.46 Billion
Q2 2018

Aug 10, 2018
BUY
$50.83 - $59.72 $187 Million - $220 Million
3,682,328 Added 41.82%
12,486,915 $758 Million
Q1 2018

May 14, 2018
SELL
$50.96 - $59.23 $6.5 Million - $7.55 Million
-127,541 Reduced 1.43%
8,804,587 $480 Million
Q4 2017

Feb 09, 2018
BUY
$51.62 - $61.64 $115 Million - $137 Million
2,226,564 Added 33.2%
8,932,128 $503 Million
Q3 2017

Nov 14, 2017
BUY
$58.67 - $63.13 $249 Million - $268 Million
4,243,246 Added 172.33%
6,705,564 $0
Q2 2017

Aug 17, 2017
BUY
N/A
2,462,318
2,462,318 $158 Million

Others Institutions Holding MRK

# of Institutions
3,875
Shares Held
1.9B
Call Options Held
30.1M
Put Options Held
27.7M
View Full List

About Merck & Co., Inc.

MRK Quotes by TradingView
  • 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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