Renaissance Technologies LLC

SEC CIK: 0001037389
Latest filing: Aug 13, 2026

SEC filings (opens in a new tab)

MRK holding history

Merck & Co., Inc. in every 13F filed by Renaissance Technologies LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MRK overview All 13F holders of MRK Full Q2 2026 holdings

Shares (Q3 2025): 0; Sold out in Q3 2025
Value: $0
% of portfolio: 0.0%
Quarters held: 18; Since Q1 2021

Holdings of MRK by Renaissance Technologies LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q3 2025	0	$0	0.0%	−139,820−100.0%	Sold out	Holders
Q2 2025	139,820	$11.1M	<0.1%	−81,872−36.9%	Reduced	Holders
Q1 2025	221,692	$19.9M	<0.1%	−1,159,944−84.0%	Reduced	Holders
Q4 2024	1,381,636	$137.4M	0.2%	+295,758+27.2%	Added	Holders
Q3 2024	1,085,878	$123.3M	0.2%	+1,080,963+21,993.1%	Added	Holders
Q2 2024	4,915	$609.7K	<0.1%	−195,287−97.5%	Reduced	Holders
Q1 2024	200,202	$26.4M	<0.1%	+80,378+67.1%	Added	Holders
Q4 2023	119,824	$13.1M	<0.1%	−247,819−67.4%	Reduced	Holders
Q3 2023	367,643	$37.8M	0.1%	−600,509−62.0%	Reduced	Holders
Q2 2023	968,152	$111.7M	0.2%	−1,681,107−63.5%	Reduced	Holders
Q1 2023	2,649,259	$281.9M	0.4%	+969,157+57.7%	Added	Holders
Q4 2022	1,680,102	$186.4M	0.3%	−2,883,132−63.2%	Reduced	Holders
Q3 2022	4,563,234	$393.0M	0.6%	−2,200,700−32.5%	Reduced	Holders
Q2 2022	6,763,934	$616.7M	0.7%	+1,664,600+32.6%	Added	Holders
Q1 2022	5,099,334	$418.4M	0.5%	+4,915,334+2,671.4%	Added	Holders
Q4 2021	184,000	$14.1M	<0.1%	−1,315,000−87.7%	Reduced	Holders
Q3 2021	1,499,000	$112.6M	0.1%	+740,200+97.5%	Added	Holders
Q2 2021	758,800	$59.0M	0.1%	+251,366+49.5%	Added	Holders
Q1 2021	507,434	$39.1M	<0.1%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.