Thompson Investment Management, Inc. Merck & Co., Inc. Transaction History

Thompson Investment Management, Inc.

$718 Million
Q3 2025

A detailed history of Thompson Investment Management, Inc. transactions in Merck & Co., Inc. stock. As of the latest transaction made, Thompson Investment Management, Inc. holds 24,924 shares of MRK stock, worth $2.31 Million. This represents 0.29% of its overall portfolio holdings.

Number of Shares

24,924

Previous 18,429 35.24%

Holding current value

$2.31 Million

Previous $1.46 Million 43.42%

% of portfolio

0.29%

Previous 0.21%

24 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Oct 17, 2025	BUY	$77.6 - $87.37 $504,011 - $567,468	6,495 Added 35.24%	24,924 $2.09 Million
Q1 2025 Apr 15, 2025	SELL	$83.01 - $101.02 $23,574 - $28,689	-284 Reduced 1.52%	18,429 $1.65 Million
Q4 2024 Jan 28, 2025	SELL	$96.31 - $114.76 $18,780 - $22,378	-195 Reduced 1.03%	18,713 $1.86 Million
Q1 2024 Apr 12, 2024	BUY	$113.24 - $131.95 $39,067 - $45,522	345 Added 1.86%	18,908 $2.49 Million
Q3 2023 Oct 30, 2023	BUY	$102.95 - $114.33 $20,590 - $22,866	200 Added 1.09%	18,563 $1.91 Million

Q2 2023 Jul 10, 2023	SELL	$108.61 - $118.38 $141,193 - $153,894	-1,300 Reduced 6.61%	18,363 $2.12 Million
Q1 2023 Apr 24, 2023	SELL	$102.94 - $114.86 $58,469 - $65,240	-568 Reduced 2.81%	19,663 $2.09 Million
Q4 2022 Jan 20, 2023	SELL	$87.44 - $112.11 $291,175 - $373,326	-3,330 Reduced 14.13%	20,231 $2.25 Million
Q3 2022 Oct 17, 2022	SELL	$84.53 - $94.96 $107,437 - $120,694	-1,271 Reduced 5.12%	23,561 $2.03 Million
Q2 2022 Aug 05, 2022	SELL	$83.49 - $94.64 $383,553 - $434,776	-4,594 Reduced 15.61%	24,832 $2.26 Million
Q1 2022 Apr 20, 2022	SELL	$73.51 - $82.4 $443,779 - $497,448	-6,037 Reduced 17.02%	29,426 $2.41 Million
Q3 2021 Oct 13, 2021	SELL	$71.68 - $78.83 $177,049 - $194,710	-2,470 Reduced 6.51%	35,463 $2.66 Million
Q2 2021 Aug 10, 2021	BUY	$70.31 - $77.77 $485,842 - $537,390	6,910 Added 22.27%	37,933 $2.95 Million
Q1 2021 Apr 07, 2021	BUY	$68.86 - $81.11 $12,463 - $14,680	181 Added 0.59%	31,023 $2.39 Million
Q4 2020 Jan 19, 2021	BUY	$71.77 - $79.65 $66,387 - $73,676	925 Added 3.09%	30,842 $2.52 Million
Q3 2020 Oct 13, 2020	BUY	$73.18 - $82.95 $219 - $248	3 Added 0.01%	29,917 $2.48 Million
Q2 2020 Jul 23, 2020	SELL	$70.42 - $80.13 $2,112 - $2,403	-30 Reduced 0.1%	29,914 $2.31 Million
Q1 2020 Apr 23, 2020	BUY	$63.36 - $87.82 $54,489 - $75,525	860 Added 2.96%	29,944 $2.3 Million
Q1 2019 Apr 24, 2019	SELL	$69.58 - $79.36 $257,446 - $293,632	-3,700 Reduced 11.29%	29,084 $2.42 Million
Q4 2018 Feb 04, 2019	SELL	$65.24 - $75.71 $501,369 - $581,831	-7,685 Reduced 18.99%	32,784 $2.51 Million
Q3 2018 Nov 06, 2018	SELL	$57.69 - $67.84 $115,380 - $135,680	-2,000 Reduced 4.71%	40,469 $2.87 Million
Q2 2018 Jul 09, 2018	SELL	$50.83 - $59.72 $101,660 - $119,440	-2,000 Reduced 4.5%	42,469 $2.58 Million
Q1 2018 May 04, 2018	BUY	$50.96 - $59.23 $1.2 Million - $1.39 Million	23,500 Added 112.07%	44,469 $2.42 Million
Q3 2017 Nov 07, 2017	BUY	$58.67 - $63.13 $1.23 Million - $1.32 Million	20,969	20,969 $1.34 Million

Others Institutions Holding MRK

# of Institutions

3,881

Shares Held

1.9B

Call Options Held

31.1M

Put Options Held

28.5M

View Full List

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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Thompson Investment Management, Inc. Merck & Co., Inc. Transaction History