Sector Gamma As Merck & Co., Inc. Transaction History

Sector Gamma As

$383 Million
Q3 2025

A detailed history of Sector Gamma As transactions in Merck & Co., Inc. stock. As of the latest transaction made, Sector Gamma As holds 322,500 shares of MRK stock, worth $29.9 Million. This represents 7.06% of its overall portfolio holdings.

Number of Shares

322,500

Previous 202,000 59.65%

Holding current value

$29.9 Million

Previous $16 Million 69.27%

% of portfolio

7.06%

Previous 5.57%

24 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Oct 31, 2025	BUY	$77.6 - $87.37 $9.35 Million - $10.5 Million	120,500 Added 59.65%	322,500 $27.1 Million
Q2 2025 Jul 31, 2025	BUY	$73.47 - $87.12 $14.8 Million - $17.6 Million	202,000 New	202,000 $16 Million
Q1 2023 May 12, 2023	SELL	$102.94 - $114.86 $14.7 Million - $16.4 Million	-143,147 Reduced 71.82%	56,153 $5.97 Million
Q4 2022 Feb 07, 2023	SELL	$87.44 - $112.11 $4.71 Million - $6.04 Million	-53,859 Reduced 21.27%	199,300 $22.1 Million
Q3 2022 Nov 09, 2022	SELL	$84.53 - $94.96 $13.6 Million - $15.3 Million	-161,179 Reduced 38.9%	253,159 $21.8 Million

Q2 2022 Aug 05, 2022	SELL	$83.49 - $94.64 $7.08 Million - $8.03 Million	-84,803 Reduced 16.99%	414,338 $37.8 Million
Q1 2022 May 06, 2022	BUY	$73.51 - $82.4 $1.72 Million - $1.92 Million	23,337 Added 4.9%	499,141 $41 Million
Q4 2021 Feb 08, 2022	SELL	$72.28 - $90.54 $24.4 Million - $30.5 Million	-337,010 Reduced 41.46%	475,804 $36.5 Million
Q3 2021 Oct 29, 2021	BUY	$71.68 - $78.83 $25.6 Million - $28.2 Million	357,367 Added 78.47%	812,814 $61.1 Million
Q2 2021 Aug 04, 2021	SELL	$70.31 - $77.77 $3.57 Million - $3.95 Million	-50,729 Reduced 10.02%	455,447 $35.4 Million
Q1 2021 May 10, 2021	SELL	$68.86 - $81.11 $4.96 Million - $5.84 Million	-72,035 Reduced 12.46%	506,176 $39 Million
Q4 2020 Feb 10, 2021	BUY	$71.77 - $79.65 $13.3 Million - $14.7 Million	184,837 Added 46.99%	578,211 $47.3 Million
Q3 2020 Nov 09, 2020	SELL	$73.18 - $82.95 $601,612 - $681,931	-8,221 Reduced 2.05%	393,374 $32.6 Million
Q2 2020 Aug 07, 2020	BUY	$70.42 - $80.13 $2.04 Million - $2.32 Million	28,900 Added 7.75%	401,595 $31.1 Million
Q1 2020 May 11, 2020	BUY	$63.36 - $87.82 $1.13 Million - $1.57 Million	17,900 Added 5.05%	372,695 $28.7 Million
Q4 2019 Feb 12, 2020	BUY	$77.58 - $87.54 $27.5 Million - $31.1 Million	354,795 New	354,795 $32.3 Million
Q2 2019 Jul 31, 2019	SELL	$69.84 - $81.59 $8.34 Million - $9.74 Million	-119,352 Closed	0 $0
Q1 2019 May 13, 2019	SELL	$69.58 - $79.36 $23.8 Million - $27.1 Million	-341,694 Reduced 74.11%	119,352 $9.93 Million
Q4 2018 Feb 12, 2019	SELL	$65.24 - $75.71 $17.6 Million - $20.4 Million	-270,000 Reduced 36.93%	461,046 $35.2 Million
Q3 2018 Nov 15, 2018	BUY	$57.69 - $67.84 $17.9 Million - $21.1 Million	310,640 Added 73.89%	731,046 $51.9 Million
Q3 2018 Nov 08, 2018	SELL	$57.69 - $67.84 $28.5 Million - $33.5 Million	-493,424 Reduced 54.0%	420,406 $29.8 Million
Q2 2018 Aug 02, 2018	BUY	$50.83 - $59.72 $9.59 Million - $11.3 Million	188,630 Added 26.01%	913,830 $55.5 Million
Q1 2018 May 09, 2018	BUY	$50.96 - $59.23 $8.5 Million - $9.87 Million	166,700 Added 29.85%	725,200 $39.5 Million
Q4 2017 Feb 12, 2018	BUY	$51.62 - $61.64 $28.8 Million - $34.4 Million	558,500	558,500 $31.4 Million

Others Institutions Holding MRK

# of Institutions

3,889

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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