California Public Employees Retirement System Merck & Co., Inc. Transaction History

California Public Employees Retirement System

$161 Billion
Q3 2025

A detailed history of California Public Employees Retirement System transactions in Merck & Co., Inc. stock. As of the latest transaction made, California Public Employees Retirement System holds 7,566,306 shares of MRK stock, worth $703 Million. This represents 0.39% of its overall portfolio holdings.

Number of Shares

7,566,306

Previous 7,677,010 1.44%

Holding current value

$703 Million

Previous $608 Million 4.5%

% of portfolio

0.39%

Previous 0.4%

33 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$77.6 - $87.37 $8.59 Million - $9.67 Million	-110,704 Reduced 1.44%	7,566,306 $635 Million
Q2 2025 Aug 13, 2025	SELL	$73.47 - $87.12 $45.2 Million - $53.6 Million	-615,782 Reduced 7.43%	7,677,010 $608 Million
Q1 2025 May 13, 2025	SELL	$83.01 - $101.02 $15.2 Million - $18.5 Million	-182,719 Reduced 2.16%	8,292,792 $744 Million
Q4 2024 Feb 12, 2025	SELL	$96.31 - $114.76 $78.8 Million - $93.9 Million	-818,542 Reduced 8.81%	8,475,511 $843 Million
Q3 2024 Nov 13, 2024	SELL	$111.15 - $128.97 $33.7 Million - $39.1 Million	-302,865 Reduced 3.16%	9,294,053 $1.06 Billion

Q2 2024 Aug 14, 2024	SELL	$123.8 - $132.96 $175 Million - $188 Million	-1,411,945 Reduced 12.83%	9,596,918 $1.19 Billion
Q1 2024 Apr 30, 2024	SELL	$113.24 - $131.95 $224 Million - $261 Million	-1,980,079 Reduced 15.24%	11,008,863 $1.45 Billion
Q4 2023 Feb 01, 2024	BUY	$100.18 - $109.02 $98.6 Million - $107 Million	984,463 Added 8.2%	12,988,942 $1.42 Billion
Q3 2023 Nov 02, 2023	SELL	$102.95 - $114.33 $21.2 Million - $23.5 Million	-205,624 Reduced 1.68%	12,004,479 $1.24 Billion
Q2 2023 Aug 09, 2023	SELL	$108.61 - $118.38 $35 Million - $38.2 Million	-322,299 Reduced 2.57%	12,210,103 $1.41 Billion
Q1 2023 May 12, 2023	SELL	$102.94 - $114.86 $62.6 Million - $69.9 Million	-608,217 Reduced 4.63%	12,532,402 $1.33 Billion
Q4 2022 Feb 08, 2023	SELL	$87.44 - $112.11 $53.7 Million - $68.8 Million	-614,080 Reduced 4.46%	13,140,619 $1.46 Billion
Q3 2022 Nov 09, 2022	SELL	$84.53 - $94.96 $40.2 Million - $45.1 Million	-475,134 Reduced 3.34%	13,754,699 $1.18 Billion
Q2 2022 Aug 10, 2022	SELL	$83.49 - $94.64 $16.7 Million - $19 Million	-200,545 Reduced 1.39%	14,229,833 $1.3 Billion
Q1 2022 May 04, 2022	SELL	$73.51 - $82.4 $27.6 Million - $30.9 Million	-374,964 Reduced 2.53%	14,430,378 $1.18 Billion
Q4 2021 Feb 10, 2022	SELL	$72.28 - $90.54 $4.79 Million - $6.01 Million	-66,331 Reduced 0.45%	14,805,342 $1.13 Billion
Q3 2021 Nov 10, 2021	BUY	$71.68 - $78.83 $111 Million - $122 Million	1,543,957 Added 11.58%	14,871,673 $1.12 Billion
Q2 2021 Aug 13, 2021	BUY	$70.31 - $77.77 $1.09 Million - $1.2 Million	15,480 Added 0.12%	13,327,716 $1.04 Billion
Q1 2021 May 14, 2021	SELL	$68.86 - $81.11 $15.8 Million - $18.7 Million	-230,176 Reduced 1.7%	13,312,236 $1.03 Billion
Q4 2020 Feb 02, 2021	BUY	$71.77 - $79.65 $233 Million - $259 Million	3,252,367 Added 31.61%	13,542,412 $1.11 Billion
Q3 2020 Nov 05, 2020	BUY	$73.18 - $82.95 $11.8 Million - $13.4 Million	161,667 Added 1.6%	10,290,045 $854 Million
Q2 2020 Aug 12, 2020	BUY	$70.42 - $80.13 $18.1 Million - $20.6 Million	257,537 Added 2.61%	10,128,378 $783 Million
Q1 2020 May 12, 2020	SELL	$63.36 - $87.82 $16.6 Million - $23 Million	-262,462 Reduced 2.59%	9,870,841 $759 Million
Q4 2019 Jan 27, 2020	SELL	$77.58 - $87.54 $3.17 Million - $3.58 Million	-40,861 Reduced 0.4%	10,133,303 $922 Million
Q3 2019 Oct 31, 2019	BUY	$76.08 - $82.93 $82.2 Million - $89.6 Million	1,080,016 Added 11.88%	10,174,164 $856 Million
Q2 2019 Aug 15, 2019	BUY	$69.84 - $81.59 $29.3 Million - $34.3 Million	420,193 Added 4.84%	9,094,148 $763 Million
Q1 2019 May 03, 2019	BUY	$69.58 - $79.36 $39.7 Million - $45.3 Million	570,193 Added 7.04%	8,673,955 $721 Million
Q4 2018 Feb 08, 2019	BUY	$65.24 - $75.71 $29.6 Million - $34.3 Million	453,354 Added 5.93%	8,103,762 $619 Million
Q3 2018 Nov 13, 2018	SELL	$57.69 - $67.84 $3.92 Million - $4.61 Million	-67,890 Reduced 0.88%	7,650,408 $543 Million
Q2 2018 Aug 15, 2018	BUY	$50.83 - $59.72 $20.6 Million - $24.2 Million	405,650 Added 5.55%	7,718,298 $469 Million
Q1 2018 May 11, 2018	SELL	$50.96 - $59.23 $3.34 Million - $3.88 Million	-65,536 Reduced 0.89%	7,312,648 $398 Million
Q4 2017 Feb 06, 2018	BUY	$51.62 - $61.64 $18.1 Million - $21.6 Million	350,606 Added 4.99%	7,378,184 $415 Million
Q3 2017 Nov 15, 2017	BUY	$58.67 - $63.13 $412 Million - $444 Million	7,027,578	7,027,578 $450 Million

Others Institutions Holding MRK

# of Institutions

3,878

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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California Public Employees Retirement System Merck & Co., Inc. Transaction History