Simplex Trading
MRK icon

Simplex Trading’s Merck MRK Stock Holding History

Simplex Trading’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 		$50M Sell
415,500
-314,100
-43% -$36.3M 0.03% 225
2025
Q4 		$76.8M Sell
729,600
-299,100
-29% -$28.1M 0.04% 196
2025
Q3 		$86.3M Buy
1,028,700
+38,700
+4% +$3.19M 0.04% 227
2025
Q2 		$78.4M Buy
990,000
+24,500
+3% +$1.95M 0.04% 201
2025
Q1 		$86.7M Buy
965,500
+541,900
+128% +$50.6M 0.06% 163
2024
Q4 		$42.1M Buy
423,600
+43,100
+11% +$4.44M 0.02% 361
2024
Q3 		$43.2M Buy
380,500
+21,900
+6% +$2.6M 0.03% 339
2024
Q2 		$44.4M Sell
358,600
-267,700
-43% -$34.5M 0.03% 329
2024
Q1 		$82.6M Buy
626,300
+65,300
+12% +$8.05M 0.05% 216
2023
Q4 		$61.2M Sell
561,000
-56,400
-9% -$5.85M 0.04% 280
2023
Q3 		$63.6M Buy
617,400
+163,000
+36% +$17.6M 0.05% 227
2023
Q2 		$52.4M Sell
454,400
-357,700
-44% -$40.6M 0.04% 260
2023
Q1 		$70.6M Sell
812,100
-265,300
-25% -$28.6M 0.06% 215
2022
Q4 		$103M Buy
1,077,400
+203,500
+23% +$20.8M 0.11% 134
2022
Q3 		$62.5M Sell
873,900
-296,400
-25% -$26.5M 0.07% 194
2022
Q2 		$93.1M Buy
1,170,300
+111,600
+11% +$9.89M 0.1% 129
2022
Q1 		$67.8M Sell
1,058,700
-31,500
-3% -$2.48M 0.06% 222
2021
Q4 		$59M Buy
1,090,200
+275,200
+34% +$21.9M 0.06% 247
2021
Q3 		$19.8M Buy
815,000
+12,200
+2% +$928K 0.02% 459
2021
Q2 		$18.9M Buy
802,800
+797,059
+13,884% +$59.3M 0.02% 467
2021
Q1 		$42.2M Buy
+5,741
New +$423K 0.08% 153
2020
Q4 		– Sell
-7,407
Closed -$58.6M – 8809
2020
Q3 		$58.6M Buy
7,407
+3,867
+109% +$303K 0.08% 140
2020
Q2 		$26.1M Sell
3,540
-2,379
-40% -$179K 0.04% 244
2020
Q1 		$43.5M Buy
5,919
+663
+13% +$52.1K 0.08% 131
2019
Q4 		$45.6M Sell
5,256
-2,731
-34% -$224K 0.1% 121
2019
Q3 		$64.2M Buy
7,987
+1,945
+32% +$156K 0.18% 70
2019
Q2 		$48.3M Sell
6,042
-2,371
-28% -$182K 0.13% 85
2019
Q1 		$66.8M Buy
8,413
+3,505
+71% +$262K 0.19% 65
2018
Q4 		$35.8M Buy
4,908
+3,945
+410% +$278K 0.11% 117
2018
Q3 		$6.52M Sell
963
-1,350
-58% -$86K 0.02% 501
2018
Q2 		$13.4M Sell
2,313
-1,146
-33% -$64.7K 0.05% 267
2018
Q1 		$971K Buy
3,459
+567
+20% +$30.6K 0.04% 404
2017
Q4 		$833K Buy
2,892
+1,286
+80% +$71.3K 0.04% 475
2017
Q3 		$311K Sell
1,606
-2,473
-61% -$150K 0.01% 934
2017
Q2 		$537K Sell
4,079
-83
-2% -$5.05K 0.02% 609
2017
Q1 		$599K Sell
4,162
-460
-10% -$27.9K 0.03% 588
2016
Q4 		$641K Buy
4,622
+941
+26% +$55.1K 0.04% 425
2016
Q3 		$143K Buy
3,681
+366
+11% +$21.4K 0.01% 1272
2016
Q2 		$209K Buy
3,315
+1,791
+118% +$95.3K 0.01% 965
2016
Q1 		$233K Sell
1,524
-64
-4% -$3.13K 0.02% 791
2015
Q4 		$374K Sell
1,588
-491
-24% -$24.8K 0.03% 553
2015
Q3 		$766K Buy
2,079
+1,344
+183% +$71.4K 0.06% 306
2015
Q2 		$173K Sell
735
-129
-15% -$7.24K 0.01% 874
2015
Q1 		$194K Buy
864
+381
+79% +$21.6K 0.02% 739
2014
Q4 		$79K Buy
+483
New +$26.9K 0.01% 1066

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

Simplex Trading's MRK Position: Q4 2025 in Review

Simplex Trading sold out of Merck (MRK) in Q4 2025, closing a stake of 50,909 shares — an estimated $4.78M sold.

Simplex Trading first reported a position in MRK in Q4 2014 and held it in 19 quarters. The position peaked at $30.9M in Q4 2021. 3,651 funds tracked by Wall St. Rank hold MRK as of Q4 2025.

  • Simplex Trading reported no remaining Merck position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 50,909 Merck shares in Q4 2025, an estimated $4.78M.
  • Simplex Trading first reported a position in Merck in Q4 2014 and held it in 19 quarters.
  • Simplex Trading's Merck position peaked at $30.9M in Q4 2021.
  • 3,651 funds tracked by Wall St. Rank held Merck as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.