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

Thornburg Investment Management Inc

$7.13 Billion
Q2 2025

A detailed history of Thornburg Investment Management Inc transactions in Merck & Co., Inc. stock. As of the latest transaction made, Thornburg Investment Management Inc holds 4,729,641 shares of MRK stock, worth $380 Million. This represents 5.25% of its overall portfolio holdings.

Number of Shares

4,729,641

Previous 3,086,806 53.22%

Holding current value

$380 Million

Previous $277 Million 35.13%

% of portfolio

5.25%

Previous 4.17%

26 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 12, 2025	BUY	$73.47 - $87.12 $121 Million - $143 Million	1,642,835 Added 53.22%	4,729,641 $374 Million
Q1 2025 May 07, 2025	BUY	$83.01 - $101.02 $100 Million - $122 Million	1,210,422 Added 64.51%	3,086,806 $277 Million
Q3 2024 Nov 08, 2024	BUY	$111.15 - $128.97 $571,311 - $662,905	5,140 Added 0.27%	1,876,384 $213 Million
Q1 2024 May 13, 2024	SELL	$113.24 - $131.95 $16.3 Million - $19 Million	-144,337 Reduced 7.16%	1,871,244 $247 Million
Q4 2023 Feb 08, 2024	SELL	$100.18 - $109.02 $53,095 - $57,780	-530 Reduced 0.03%	2,015,581 $220 Million
Q3 2023 Nov 13, 2023	BUY	$102.95 - $114.33 $54.5 Million - $60.6 Million	529,646 Added 35.63%	2,016,111 $208 Million
Q2 2023 Aug 08, 2023	SELL	$108.61 - $118.38 $2.37 Million - $2.58 Million	-21,801 Reduced 1.45%	1,486,465 $172 Million
Q1 2023 May 09, 2023	SELL	$102.94 - $114.86 $5.34 Million - $5.95 Million	-51,828 Reduced 3.32%	1,508,266 $160 Million
Q4 2022 Feb 07, 2023	SELL	$87.44 - $112.11 $2.65 Million - $3.4 Million	-30,286 Reduced 1.9%	1,560,094 $173 Million
Q3 2022 Nov 14, 2022	SELL	$84.53 - $94.96 $20.9 Million - $23.4 Million	-246,820 Reduced 13.43%	1,590,380 $137 Million
Q2 2022 Aug 05, 2022	SELL	$83.49 - $94.64 $50.5 Million - $57.2 Million	-604,721 Reduced 24.76%	1,837,200 $167 Million
Q1 2022 May 12, 2022	BUY	$73.51 - $82.4 $11 Million - $12.4 Million	150,028 Added 6.55%	2,441,921 $200 Million
Q4 2021 Feb 10, 2022	BUY	$72.28 - $90.54 $4.79 Million - $6 Million	66,304 Added 2.98%	2,291,893 $176 Million
Q3 2021 Nov 10, 2021	BUY	$71.68 - $78.83 $12.5 Million - $13.7 Million	174,395 Added 8.5%	2,225,589 $167 Million
Q2 2021 Aug 11, 2021	BUY	$70.31 - $77.77 $15.7 Million - $17.4 Million	223,419 Added 12.22%	2,051,194 $160 Million
Q1 2021 May 14, 2021	BUY	$68.86 - $81.11 $2 Million - $2.36 Million	29,096 Added 1.62%	1,827,775 $141 Million
Q4 2020 Feb 09, 2021	SELL	$71.77 - $79.65 $22.2 Million - $24.7 Million	-309,834 Reduced 14.69%	1,798,679 $147 Million
Q3 2020 Nov 05, 2020	SELL	$73.18 - $82.95 $22.3 Million - $25.3 Million	-304,675 Reduced 12.63%	2,108,513 $175 Million
Q2 2020 Aug 07, 2020	SELL	$70.42 - $80.13 $91.6 Million - $104 Million	-1,301,253 Reduced 35.03%	2,413,188 $187 Million
Q1 2020 May 13, 2020	BUY	$63.36 - $87.82 $4.04 Million - $5.6 Million	63,821 Added 1.75%	3,714,441 $286 Million
Q1 2019 May 07, 2019	SELL	$69.58 - $79.36 $24.8 Million - $28.3 Million	-356,369 Reduced 8.89%	3,650,620 $304 Million
Q4 2018 Feb 06, 2019	SELL	$65.24 - $75.71 $23.9 Million - $27.7 Million	-366,000 Reduced 8.37%	4,006,989 $306 Million
Q2 2018 Aug 14, 2018	SELL	$50.83 - $59.72 $14 Million - $16.4 Million	-274,658 Reduced 5.91%	4,372,989 $265 Million
Q1 2018 May 07, 2018	SELL	$50.96 - $59.23 $2.25 Million - $2.61 Million	-44,062 Reduced 0.94%	4,647,647 $253 Million
Q3 2017 Nov 13, 2017	BUY	$58.67 - $63.13 $83,311 - $89,644	1,420 Added 0.03%	4,691,709 $300 Million
Q2 2017 Aug 14, 2017	BUY	N/A	4,690,289	4,690,289 $301 Million

Others Institutions Holding MRK

# of Institutions

3,832

Shares Held

1.97B

Call Options Held

25.2M

Put Options Held

24.5M

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 $203B
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, ...

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