Port Capital LLC Merck & Co., Inc. Transaction History

Port Capital LLC

$1.93 Billion
Q3 2025

A detailed history of Port Capital LLC transactions in Merck & Co., Inc. stock. As of the latest transaction made, Port Capital LLC holds 7,745 shares of MRK stock, worth $719,200. This represents 0.03% of its overall portfolio holdings.

Number of Shares

7,745

Previous 7,745 -0.0%

Holding current value

$719,200

Previous $613,000 6.04%

% of portfolio

0.03%

Previous 0.03%

27 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$73.47 - $87.12 $42,686 - $50,616	-581 Reduced 6.98%	7,745 $613,000
Q1 2025 May 15, 2025	BUY	$83.01 - $101.02 $1,245 - $1,515	15 Added 0.18%	8,326 $747,000
Q4 2024 Feb 14, 2025	BUY	$96.31 - $114.76 $3,370 - $4,016	35 Added 0.42%	8,311 $826,000
Q3 2024 Nov 14, 2024	SELL	$111.15 - $128.97 $23,119 - $26,825	-208 Reduced 2.45%	8,276 $939,000
Q2 2024 Aug 14, 2024	BUY	$123.8 - $132.96 $990 - $1,063	8 Added 0.09%	8,484 $1.05 Million

Q1 2024 May 15, 2024	SELL	$113.24 - $131.95 $102,821 - $119,810	-908 Reduced 9.68%	8,476 $1.12 Million
Q4 2023 Feb 15, 2024	SELL	$100.18 - $109.02 $1,602 - $1,744	-16 Reduced 0.17%	9,384 $1.02 Million
Q3 2023 Nov 14, 2023	BUY	$102.95 - $114.33 $5,868 - $6,516	57 Added 0.61%	9,400 $967,000
Q1 2023 May 15, 2023	SELL	$102.94 - $114.86 $153,174 - $170,911	-1,488 Reduced 13.74%	9,343 $994,000
Q4 2022 Feb 14, 2023	SELL	$87.44 - $112.11 $21,422 - $27,466	-245 Reduced 2.21%	10,831 $1.2 Million
Q3 2022 Nov 14, 2022	BUY	$84.53 - $94.96 $4,733 - $5,317	56 Added 0.51%	11,076 $954,000
Q2 2022 Aug 15, 2022	SELL	$83.49 - $94.64 $29,054 - $32,934	-348 Reduced 3.06%	11,020 $1.01 Million
Q1 2022 May 16, 2022	SELL	$73.51 - $82.4 $63,733 - $71,440	-867 Reduced 7.09%	11,368 $933,000
Q4 2021 Feb 14, 2022	BUY	$72.28 - $90.54 $1,373 - $1,720	19 Added 0.16%	12,235 $938,000
Q3 2021 Nov 15, 2021	SELL	$71.68 - $78.83 $15,052 - $16,554	-210 Reduced 1.69%	12,216 $918,000
Q2 2021 Aug 16, 2021	BUY	$70.31 - $77.77 $5,062 - $5,599	72 Added 0.58%	12,426 $966,000
Q1 2021 May 17, 2021	BUY	$68.86 - $81.11 $7,230 - $8,516	105 Added 0.86%	12,354 $952,000
Q4 2020 Feb 16, 2021	SELL	$71.77 - $79.65 $22,894 - $25,408	-319 Reduced 2.54%	12,249 $1 Million
Q3 2020 Nov 16, 2020	BUY	$73.18 - $82.95 $1,609 - $1,824	22 Added 0.18%	12,568 $1.04 Million
Q2 2020 Aug 14, 2020	BUY	$70.42 - $80.13 $3,098 - $3,525	44 Added 0.35%	12,546 $970,000
Q1 2020 May 15, 2020	SELL	$63.36 - $87.82 $18,311 - $25,379	-289 Reduced 2.26%	12,502 $962,000
Q4 2019 Feb 14, 2020	SELL	$77.58 - $87.54 $30,644 - $34,578	-395 Reduced 3.0%	12,791 $1.16 Million
Q3 2019 Nov 14, 2019	SELL	$76.08 - $82.93 $13,237 - $14,429	-174 Reduced 1.3%	13,186 $1.11 Million
Q2 2019 Aug 14, 2019	SELL	$69.84 - $81.59 $44,208 - $51,646	-633 Reduced 4.52%	13,360 $1.12 Million
Q1 2019 May 15, 2019	SELL	$69.58 - $79.36 $31,032 - $35,394	-446 Reduced 3.09%	13,993 $1.16 Million
Q4 2018 Feb 13, 2019	SELL	$65.24 - $75.71 $3,457 - $4,012	-53 Reduced 0.37%	14,439 $1.1 Million
Q3 2018 Nov 14, 2018	BUY	$57.69 - $67.84 $836,043 - $983,137	14,492 New	14,492 $1.03 Million

Others Institutions Holding MRK

# of Institutions

3,881

Shares Held

1.9B

Call Options Held

30.1M

Put Options Held

27.7M

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, ...

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