Twin Tree Management
MRK icon

Twin Tree Management’s Merck MRK Stock Holding History

Twin Tree Management’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 		– Sell
-16,900
Closed -$1.78M – 1558
2025
Q4 		$1.78M Sell
16,900
-70,000
-81% -$6.57M 0.02% 861
2025
Q3 		$7.29M Sell
86,900
-148,200
-63% -$12.2M 0.03% 622
2025
Q2 		$18.6M Sell
235,100
-541,300
-70% -$43M 0.03% 509
2025
Q1 		$69.7M Buy
776,400
+162,500
+26% +$15.2M 0.13% 111
2024
Q4 		$61.1M Buy
613,900
+504,900
+463% +$52.1M 0.11% 158
2024
Q3 		$12.4M Sell
109,000
-111,000
-50% -$13.2M 0.02% 580
2024
Q2 		$27.2M Sell
220,000
-209,100
-49% -$26.9M 0.06% 284
2024
Q1 		$56.6M Buy
+429,100
New +$52.9M 0.12% 155
2023
Q2 		– Sell
-303,900
Closed -$32.3M – 1429
2023
Q1 		$32.3M Buy
303,900
+217,100
+250% +$23.4M 0.06% 273
2022
Q4 		$9.63M Sell
86,800
-443,000
-84% -$45.3M 0.02% 582
2022
Q3 		$45.6M Buy
+529,800
New +$47.3M 0.09% 188
2022
Q2 		– Sell
-233,300
Closed -$19.1M – 1737
2022
Q1 		$19.1M Sell
233,300
-1,036,300
-82% -$81.7M 0.03% 484
2021
Q4 		$97.3M Buy
1,269,600
+721,000
+131% +$57.4M 0.2% 67
2021
Q3 		$41.2M Buy
548,600
+441,500
+412% +$33.6M 0.09% 206
2021
Q2 		$8.33M Sell
107,100
-198,497
-65% -$14.8M 0.02% 549
2021
Q1 		$22.5M Buy
305,597
+235,800
+338% +$17.4M 0.08% 259
2020
Q4 		$5.45M Sell
69,797
-45,588
-40% -$3.49M 0.02% 596
2020
Q3 		$9.13M Sell
115,385
-82,792
-42% -$6.48M 0.04% 448
2020
Q2 		$14.6M Sell
198,177
-517,188
-72% -$38.9M 0.06% 361
2020
Q1 		$52.5M Sell
715,365
-1,291,765
-64% -$102M 0.25% 64
2019
Q4 		$174M Buy
2,007,130
+212,325
+12% +$17.4M 0.6% 20
2019
Q3 		$144M Buy
1,794,805
+1,751,418
+4,037% +$140M 0.57% 24
2019
Q2 		$3.47M Sell
43,387
-408,720
-90% -$31.3M 0.02% 546
2019
Q1 		$35.9M Buy
+452,107
New +$33.8M 0.19% 103
2018
Q3 		– Sell
-108,049
Closed -$6.26M – 1223
2018
Q2 		$6.26M Buy
108,049
+63,195
+141% +$3.57M 0.04% 374
2018
Q1 		$2.33M Buy
44,854
+8,488
+23% +$458K 0.02% 495
2017
Q4 		$1.95M Sell
36,366
-75,246
-67% -$4.17M 0.01% 592
2017
Q3 		$6.82M Sell
111,612
-109,830
-50% -$6.66M 0.05% 303
2017
Q2 		$13.5M Buy
221,442
+21,588
+11% +$1.31M 0.11% 187
2017
Q1 		$12.1M Sell
199,854
-774,157
-79% -$47M 0.11% 190
2016
Q4 		$54.7M Buy
974,011
+749,634
+334% +$43.9M 0.54% 25
2016
Q3 		$13.4M Sell
224,377
-87,717
-28% -$5.13M 0.17% 126
2016
Q2 		$17.2M Buy
312,094
+245,860
+371% +$13.1M 0.27% 71
2016
Q1 		$3.34M Sell
66,234
-46,740
-41% -$2.29M 0.06% 311
2015
Q4 		$5.69M Buy
112,974
+17,920
+19% +$903K 0.11% 184
2015
Q3 		$4.48M Buy
95,054
+42,549
+81% +$2.26M 0.11% 157
2015
Q2 		$2.85M Sell
52,505
-17,501
-25% -$982K 0.07% 296
2015
Q1 		$3.84M Buy
70,006
+23,789
+51% +$1.35M 0.1% 228
2014
Q4 		$2.5M Buy
46,217
+31,964
+224% +$1.78M 0.07% 312
2014
Q3 		$806K Sell
14,253
-49,151
-78% -$2.76M 0.02% 609
2014
Q2 		$3.5M Buy
63,404
+29,239
+86% +$1.6M 0.08% 276
2014
Q1 		$1.85M Buy
+34,165
New +$1.77M 0.04% 472
2013
Q4 		– Sell
-36,366
Closed -$1.65M – 985
2013
Q3 		$1.65M Sell
36,366
-47,788
-57% -$2.18M 0.06% 361
2013
Q2 		$3.73M Buy
+84,154
New +$3.76M 0.14% 155

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

Twin Tree Management's MRK Position: Q1 2026 in Review

Twin Tree Management sold out of Merck (MRK) in Q1 2026, closing a stake of 10,738 shares — an estimated $1.24M sold.

Twin Tree Management first reported a position in MRK in Q3 2013 and held it in 33 quarters. The position peaked at $62.9M in Q4 2022. 3,777 funds tracked by Wall St. Rank hold MRK as of Q1 2026.

  • Twin Tree Management reported no remaining Merck position as of Q1 2026 after selling out during the quarter.
  • Twin Tree Management sold 10,738 Merck shares in Q1 2026, an estimated $1.24M.
  • Twin Tree Management first reported a position in Merck in Q3 2013 and held it in 33 quarters.
  • Twin Tree Management's Merck position peaked at $62.9M in Q4 2022.
  • 3,777 funds tracked by Wall St. Rank held Merck as of Q1 2026.

Based on Twin Tree Management's 13F filing for Q1 2026, filed 14 May 2026.