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 		$75.3M Sell
626,100
-314,300
-33% -$36.3M 0.05% 151
2025
Q4 		$99M Buy
940,400
+47,500
+5% +$4.46M 0.06% 158
2025
Q3 		$74.9M Sell
892,900
-171,900
-16% -$14.2M 0.04% 255
2025
Q2 		$84.3M Buy
1,064,800
+33,100
+3% +$2.63M 0.05% 185
2025
Q1 		$92.6M Buy
1,031,700
+410,500
+66% +$38.3M 0.06% 153
2024
Q4 		$61.8M Buy
621,200
+147,300
+31% +$15.2M 0.03% 260
2024
Q3 		$53.8M Sell
473,900
-192,200
-29% -$22.8M 0.03% 290
2024
Q2 		$82.5M Sell
666,100
-64,400
-9% -$8.3M 0.05% 188
2024
Q1 		$96.4M Buy
730,500
+193,900
+36% +$23.9M 0.06% 188
2023
Q4 		$58.5M Buy
536,600
+27,500
+5% +$2.85M 0.04% 297
2023
Q3 		$52.4M Buy
509,100
+29,500
+6% +$3.18M 0.04% 278
2023
Q2 		$55.3M Sell
479,600
-173,800
-27% -$19.7M 0.05% 245
2023
Q1 		$69.5M Sell
653,400
-440,300
-40% -$47.5M 0.06% 220
2022
Q4 		$111M Sell
1,093,700
-255,200
-19% -$26.1M 0.12% 120
2022
Q3 		$107M Buy
1,348,900
+170,800
+14% +$15.2M 0.12% 101
2022
Q2 		$98.1M Sell
1,178,100
-352,200
-23% -$31.2M 0.1% 122
2022
Q1 		$93.6M Sell
1,530,300
-1,223,600
-44% -$96.5M 0.09% 165
2021
Q4 		$170M Buy
2,753,900
+1,458,900
+113% +$116M 0.17% 83
2021
Q3 		$40M Buy
1,295,000
+3,200
+0.2% +$243K 0.04% 291
2021
Q2 		$39.7M Buy
1,291,800
+1,280,487
+11,319% +$95.2M 0.04% 284
2021
Q1 		$83.2M Buy
+11,313
New +$834K 0.15% 88
2020
Q4 		– Sell
-8,915
Closed -$70.6M – 8807
2020
Q3 		$70.6M Buy
8,915
+5,401
+154% +$423K 0.1% 120
2020
Q2 		$25.9M Sell
3,514
-3,692
-51% -$278K 0.04% 245
2020
Q1 		$52.9M Buy
7,206
+2,053
+40% +$161K 0.09% 107
2019
Q4 		$44.7M Sell
5,153
-2,106
-29% -$173K 0.1% 123
2019
Q3 		$58.3M Buy
7,259
+3,094
+74% +$248K 0.17% 77
2019
Q2 		$33.3M Buy
4,165
+1,843
+79% +$141K 0.09% 138
2019
Q1 		$18.4M Sell
2,322
-1,449
-38% -$108K 0.05% 233
2018
Q4 		$27.5M Buy
3,771
+1,157
+44% +$81.7K 0.08% 155
2018
Q3 		$17.7M Sell
2,614
-714
-21% -$45.5K 0.06% 225
2018
Q2 		$19.3M Sell
3,328
-2,285
-41% -$129K 0.08% 190
2018
Q1 		$459K Buy
5,613
+2,874
+105% +$155K 0.02% 758
2017
Q4 		$142K Sell
2,739
-127
-4% -$7.04K 0.01% 1538
2017
Q3 		$388K Sell
2,866
-2,886
-50% -$175K 0.02% 801
2017
Q2 		$778K Sell
5,752
-3,389
-37% -$206K 0.03% 460
2017
Q1 		$1.31M Buy
9,141
+6,106
+201% +$370K 0.06% 303
2016
Q4 		$419K Sell
3,035
-100
-3% -$5.85K 0.03% 631
2016
Q3 		$706K Sell
3,135
-1,979
-39% -$116K 0.05% 369
2016
Q2 		$927K Buy
5,114
+2,194
+75% +$117K 0.06% 300
2016
Q1 		$299K Buy
2,920
+1,793
+159% +$87.8K 0.02% 662
2015
Q4 		$122K Buy
1,127
+172
+18% +$8.67K 0.01% 1204
2015
Q3 		$70K Buy
955
+430
+82% +$22.8K 0.01% 1716
2015
Q2 		$133K Sell
525
-375
-42% -$21K 0.01% 1037
2015
Q1 		$204K Buy
900
+282
+46% +$16K 0.02% 711
2014
Q4 		$29K Buy
+618
New +$34.4K ﹤0.01% 1774

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.