D.E. Shaw & Co
MRK icon

D.E. Shaw & Co’s Merck MRK Stock Holding History

D.E. Shaw & Co’s Portfolio MRK Stock Details MRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$409M Sell
3,397,582
-120,882
-3% -$14M 0.25% 76
2025
Q4 		$370M Buy
3,518,464
+50,612
+1% +$4.75M 0.2% 92
2025
Q3 		$291M Sell
3,467,852
-6,899,937
-67% -$568M 0.16% 131
2025
Q2 		$821M Buy
10,367,789
+1,056,063
+11% +$83.9M 0.58% 14
2025
Q1 		$836M Buy
9,311,726
+2,936,922
+46% +$274M 0.74% 6
2024
Q4 		$634M Sell
6,374,804
-386,291
-6% -$39.8M 0.47% 19
2024
Q3 		$768M Buy
6,761,095
+4,382,317
+184% +$521M 0.66% 6
2024
Q2 		$294M Buy
2,378,778
+357,363
+18% +$46M 0.28% 64
2024
Q1 		$267M Sell
2,021,415
-421,015
-17% -$51.9M 0.23% 87
2023
Q4 		$266M Buy
2,442,430
+750,290
+44% +$77.9M 0.23% 77
2023
Q3 		$174M Buy
1,692,140
+378,731
+29% +$40.8M 0.18% 115
2023
Q2 		$152M Sell
1,313,409
-810,055
-38% -$92M 0.15% 141
2023
Q1 		$226M Buy
2,123,464
+786,199
+59% +$84.9M 0.24% 67
2022
Q4 		$148M Buy
1,337,265
+1,233,272
+1,186% +$126M 0.16% 124
2022
Q3 		$8.96M Sell
103,993
-263,897
-72% -$23.6M 0.01% 1455
2022
Q2 		$33.5M Sell
367,890
-312,737
-46% -$27.7M 0.04% 580
2022
Q1 		$55.8M Buy
680,627
+5,031
+0.7% +$397K 0.05% 438
2021
Q4 		$51.8M Sell
675,596
-2,871,462
-81% -$229M 0.04% 526
2021
Q3 		$266M Sell
3,547,058
-325,497
-8% -$24.8M 0.24% 60
2021
Q2 		$301M Sell
3,872,555
-6,401,192
-62% -$476M 0.26% 58
2021
Q1 		$756M Sell
10,273,747
-118,495
-1% -$8.74M 0.73% 7
2020
Q4 		$811M Buy
10,392,242
+4,212,731
+68% +$322M 0.73% 11
2020
Q3 		$489M Sell
6,179,511
-2,878,041
-32% -$225M 0.5% 28
2020
Q2 		$668M Buy
9,057,552
+3,585,422
+66% +$270M 0.8% 7
2020
Q1 		$402M Buy
5,472,130
+3,038,777
+125% +$239M 0.63% 12
2019
Q4 		$211M Sell
2,433,353
-1,773,653
-42% -$146M 0.24% 77
2019
Q3 		$338M Sell
4,207,006
-983,000
-19% -$78.8M 0.42% 29
2019
Q2 		$415M Sell
5,190,006
-1,062,101
-17% -$81.3M 0.52% 21
2019
Q1 		$496M Buy
6,252,107
+823,706
+15% +$61.6M 0.64% 9
2018
Q4 		$396M Sell
5,428,401
-859,434
-14% -$60.7M 0.55% 18
2018
Q3 		$426M Sell
6,287,835
-2,911,669
-32% -$185M 0.51% 18
2018
Q2 		$533M Sell
9,199,504
-8,022,956
-47% -$453M 0.7% 7
2018
Q1 		$895M Buy
17,222,460
+2,794,925
+19% +$151M 1.22% 3
2017
Q4 		$775M Buy
14,427,535
+5,810,211
+67% +$322M 1.07% 5
2017
Q3 		$526M Buy
8,617,324
+2,651,053
+44% +$161M 0.81% 8
2017
Q2 		$365M Buy
5,966,271
+3,121,064
+110% +$190M 0.6% 17
2017
Q1 		$173M Buy
2,845,207
+1,975,111
+227% +$120M 0.3% 57
2016
Q4 		$48.9M Buy
870,096
+807,026
+1,280% +$47.2M 0.08% 306
2016
Q3 		$3.76M Sell
63,070
-1,102,827
-95% -$64.5M 0.01% 1480
2016
Q2 		$64.1M Sell
1,165,897
-992,641
-46% -$52.8M 0.12% 198
2016
Q1 		$109M Sell
2,158,538
-992,605
-31% -$48.6M 0.2% 113
2015
Q4 		$159M Buy
3,151,143
+918,341
+41% +$46.3M 0.24% 85
2015
Q3 		$105M Sell
2,232,802
-3,450,903
-61% -$183M 0.16% 136
2015
Q2 		$309M Sell
5,683,705
-823,184
-13% -$46.2M 0.46% 27
2015
Q1 		$357M Buy
6,506,889
+3,431,668
+112% +$194M 0.55% 23
2014
Q4 		$167M Sell
3,075,221
-1,709,809
-36% -$95.3M 0.21% 85
2014
Q3 		$271M Buy
4,785,030
+651,421
+16% +$36.6M 0.35% 43
2014
Q2 		$228M Sell
4,133,609
-1,757,424
-30% -$95.9M 0.31% 50
2014
Q1 		$319M Sell
5,891,033
-1,460,091
-20% -$75.6M 0.46% 29
2013
Q4 		$351M Buy
7,351,124
+4,388,345
+148% +$201M 0.48% 22
2013
Q3 		$135M Buy
2,962,779
+375,770
+15% +$17.2M 0.21% 77
2013
Q2 		$115M Buy
+2,587,009
New +$116M 0.22% 84

Other funds holding MRK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

D.E. Shaw & Co's MRK Position: Q1 2026 in Review

D.E. Shaw & Co reduced its Merck (MRK) stake by 3.4% in Q1 2026, selling an estimated $14M and leaving 3,397,582 shares worth $409M. The position accounts for 0.25% of the portfolio, ranked #76.

D.E. Shaw & Co first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $895M in Q1 2018. 3,775 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • D.E. Shaw & Co held 3,397,582 shares of Merck worth $409M as of Q1 2026.
  • D.E. Shaw & Co sold 120,882 Merck shares in Q1 2026, an estimated $14M.
  • Merck made up 0.25% of D.E. Shaw & Co's portfolio in Q1 2026, its #76 holding.
  • D.E. Shaw & Co first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
  • D.E. Shaw & Co's Merck position peaked at $895M in Q1 2018.
  • 3,775 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on D.E. Shaw & Co's 13F filing for Q1 2026, filed 15 May 2026.