How many shares of MRK does D. E. Shaw & Co., Inc. own?

As of 2026-Q2, D. E. Shaw & Co., Inc. holds 2.7M shares of MRK (MERCK & CO. INC.).

What is D. E. Shaw & Co., Inc.'s MRK position worth?

As of 2026-Q2, D. E. Shaw & Co., Inc.'s MRK position is worth $351.8M.

In 2026-Q2, D. E. Shaw & Co., Inc. decreased their MRK position (-19.4% change in shares).

Based on available 13F filings, D. E. Shaw & Co., Inc. first reported a position in MRK in 2018-Q4. They have held the position across 31 quarters.

Position history for DED. E. Shaw & Co., Inc.'s holdings in MERCK & CO. INC.

Current Value

$351.8M

Current Shares

2.7M

Total Value Change

-$44M

Total Shares Change

-2.4M

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	2.7M	-19.4%	$351.8M	0.2%	$128.50	0
2026-Q1	Decreased	3.4M	-3.4%	$408.7M	0.2%	$119.83	0
2025-Q4	Increased	3.5M	+1.5%	$370.4M	0.2%	$106.06	38
2025-Q3	Decreased	3.5M	-66.5%	$291.1M	0.2%	$77.91	0
2025-Q2	Increased	10.4M	+11.3%	$820.7M	0.6%	$77.66	50
2025-Q1	Increased	9.3M	+46.1%	$835.8M	0.7%	$86.74	61
2024-Q4	Decreased	6.4M	-5.7%	$634.2M	0.5%	$94.81	0
2024-Q3	Increased	6.8M	+184.2%	$767.8M	0.7%	$108.70	72
2024-Q2	Increased	2.4M	+17.7%	$294.5M	0.3%	$117.58	43
2024-Q1	Decreased	2M	-17.2%	$266.7M	0.2%	$124.58	0
2023-Q4	Increased	2.4M	+44.3%	$266.3M	0.2%	$102.28	50
2023-Q3	Increased	1.7M	+28.8%	$174.2M	0.2%	$95.89	46
2023-Q2	Decreased	1.3M	-38.1%	$151.6M	0.2%	$105.04	0
2023-Q1	Increased	2.1M	+58.8%	$225.9M	0.2%	$97.34	52
2022-Q4	Increased	1.3M	+1185.9%	$148.4M	0.2%	$101.26	58
2022-Q3	Decreased	103,993	-71.7%	$9M	0.0%	$78.55	0
2022-Q2	Decreased	367,890	-46.0%	$33.5M	0.0%	$83.20	0
2022-Q1	Increased	680,627	+0.7%	$55.8M	0.1%	$73.51	30
2021-Q4	Decreased	675,596	-81.0%	$51.8M	0.0%	$68.21	0
2021-Q3	Decreased	3.5M	-8.4%	$266.4M	0.2%	$65.77	0
2021-Q2	Decreased	3.9M	-60.5%	$301.2M	0.3%	$67.03	0
2021-Q1	Decreased	9.8M	-1.1%	$755.7M	0.7%	$63.21	0
2020-Q4	Increased	9.9M	+68.2%	$811.2M	0.7%	$65.61	66
2020-Q3	Decreased	5.9M	-31.8%	$489.1M	0.5%	$66.16	0
2020-Q2	Increased	8.6M	+65.5%	$668.3M	0.8%	$61.04	65
2020-Q1	Increased	5.2M	+124.9%	$401.7M	0.6%	$61.22	71
2019-Q4	Decreased	2.3M	-42.2%	$211.2M	0.2%	$71.83	0
2019-Q3	Decreased	4M	-18.9%	$337.9M	0.4%	$64.98	0
2019-Q2	Decreased	5M	-17.0%	$415.3M	0.5%	$65.28	0
2019-Q1	Increased	6M	+15.2%	$496.2M	0.6%	$64.32	51
2018-Q4	New	5.2M	-	$395.8M	0.5%	$57.90	61