Jane Street’s Merck MRK Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $281M | Sell |
2,332,800
-99,100
| -4% | -$11.4M | 0.04% | 316 |
|
|
2025
Q4 | $256M | Buy |
2,431,900
+1,181,100
| +94% | +$111M | 0.04% | 287 |
|
|
2025
Q3 | $105M | Sell |
1,250,800
-1,320,100
| -51% | -$109M | 0.02% | 578 |
|
|
2025
Q2 | $204M | Buy |
2,570,900
+933,900
| +57% | +$74.2M | 0.04% | 284 |
|
|
2025
Q1 | $147M | Buy |
1,637,000
+1,275,400
| +353% | +$119M | 0.04% | 287 |
|
|
2024
Q4 | $36M | Buy |
361,600
+66,200
| +22% | +$6.82M | 0.01% | 869 |
|
|
2024
Q3 | $33.5M | Buy |
295,400
+171,900
| +139% | +$20.4M | 0.01% | 901 |
|
|
2024
Q2 | $15.3M | Sell |
123,500
-121,700
| -50% | -$15.7M | ﹤0.01% | 1557 |
|
|
2024
Q1 | $32.4M | Buy |
245,200
+65,900
| +37% | +$8.12M | 0.01% | 863 |
|
|
2023
Q4 | $19.5M | Sell |
179,300
-9,100
| -5% | -$945K | 0.01% | 1286 |
|
|
2023
Q3 | $19.4M | Sell |
188,400
-111,800
| -37% | -$12.1M | 0.01% | 1122 |
|
|
2023
Q2 | $34.6M | Buy |
300,200
+76,100
| +34% | +$8.64M | 0.01% | 788 |
|
|
2023
Q1 | $23.8M | Sell |
224,100
-649,100
| -74% | -$70.1M | 0.01% | 888 |
|
|
2022
Q4 | $96.9M | Buy |
873,200
+319,400
| +58% | +$32.6M | 0.04% | 301 |
|
|
2022
Q3 | $47.7M | Sell |
553,800
-291,800
| -35% | -$26M | 0.02% | 542 |
|
|
2022
Q2 | $77.1M | Buy |
845,600
+89,500
| +12% | +$7.93M | 0.03% | 380 |
|
|
2022
Q1 | $62M | Sell |
756,100
-128,700
| -15% | -$10.1M | 0.02% | 584 |
|
|
2021
Q4 | $67.9M | Buy |
884,800
+20,000
| +2% | +$1.59M | 0.02% | 518 |
|
|
2021
Q3 | $65M | Buy |
864,800
+247,900
| +40% | +$18.9M | 0.02% | 494 |
|
|
2021
Q2 | $48M | Sell |
616,900
-137,765
| -18% | -$10.2M | 0.02% | 569 |
|
|
2021
Q1 | $55.5M | Buy |
754,665
+438,693
| +139% | +$32.4M | 0.03% | 447 |
|
|
2020
Q4 | $24.7M | Sell |
315,972
-150,598
| -32% | -$11.5M | 0.01% | 747 |
|
|
2020
Q3 | $36.9M | Buy |
466,570
+187,802
| +67% | +$14.7M | 0.02% | 499 |
|
|
2020
Q2 | $20.6M | Sell |
278,768
-127,856
| -31% | -$9.63M | 0.02% | 739 |
|
|
2020
Q1 | $29.9M | Buy |
406,624
+222,176
| +120% | +$17.5M | 0.03% | 346 |
|
|
2019
Q4 | $16M | Buy |
184,448
+37,414
| +25% | +$3.07M | 0.02% | 457 |
|
|
2019
Q3 | $11.8M | Buy |
147,034
+81,115
| +123% | +$6.5M | 0.02% | 524 |
|
|
2019
Q2 | $5.27M | Sell |
65,919
-1,153
| -2% | -$88.3K | 0.01% | 1007 |
|
|
2019
Q1 | $5.32M | Sell |
67,072
-27,038
| -29% | -$2.02M | 0.01% | 1102 |
|
|
2018
Q4 | $6.86M | Buy |
94,110
+64,556
| +218% | +$4.56M | 0.01% | 750 |
|
|
2018
Q3 | $2M | Sell |
29,554
-25,571
| -46% | -$1.63M | ﹤0.01% | 1901 |
|
|
2018
Q2 | $3.19M | Sell |
55,125
-44,645
| -45% | -$2.52M | 0.01% | 1430 |
|
|
2018
Q1 | $5.19M | Buy |
99,770
+21,170
| +27% | +$1.14M | 0.01% | 957 |
|
|
2017
Q4 | $4.22M | Sell |
78,600
-3,249
| -4% | -$180K | 0.01% | 984 |
|
|
2017
Q3 | $5M | Buy |
81,849
+75,351
| +1,160% | +$4.57M | 0.02% | 869 |
|
|
2017
Q2 | $397K | Sell |
6,498
-14,148
| -69% | -$861K | ﹤0.01% | 3311 |
|
|
2017
Q1 | $1.25M | Sell |
20,646
-68,015
| -77% | -$4.13M | 0.01% | 1822 |
|
|
2016
Q4 | $4.98M | Buy |
88,661
+79,229
| +840% | +$4.64M | 0.02% | 667 |
|
|
2016
Q3 | $562K | Sell |
9,432
-4,821
| -34% | -$282K | ﹤0.01% | 2645 |
|
|
2016
Q2 | $783K | Sell |
14,253
-75,875
| -84% | -$4.04M | ﹤0.01% | 2274 |
|
|
2016
Q1 | $4.55M | Buy |
90,128
+3,144
| +4% | +$154K | 0.03% | 616 |
|
|
2015
Q4 | $4.38M | Sell |
86,984
-41,082
| -32% | -$2.07M | 0.03% | 565 |
|
|
2015
Q3 | $6.04M | Buy |
128,066
+28,506
| +29% | +$1.51M | 0.04% | 396 |
|
|
2015
Q2 | $5.41M | Buy |
99,560
+87,194
| +705% | +$4.89M | 0.04% | 437 |
|
|
2015
Q1 | $678K | Buy |
+12,366
| New | +$700K | 0.01% | 1735 |
|
Other funds holding MRK
VCM
VPM
Jane Street's MRK Position: Q1 2026 in Review
Jane Street increased its Merck (MRK) stake by 175% in Q1 2026, buying an estimated $25.8M and bringing the position to 351,131 shares worth $42.2M. The position accounts for 0.01% of the portfolio, ranked #1172.
Jane Street first reported a position in MRK in Q2 2013 and has held it in 52 quarters since. The position peaked at $301M in Q2 2024. 3,778 funds tracked by Wall St. Rank hold MRK as of Q1 2026.
- Jane Street held 351,131 shares of Merck worth $42.2M as of Q1 2026.
- Jane Street bought 223,444 Merck shares in Q1 2026, an estimated $25.8M.
- Merck made up 0.01% of Jane Street's portfolio in Q1 2026, its #1172 holding.
- Jane Street first reported a position in Merck in Q2 2013 and has held it in 52 quarters since.
- Jane Street's Merck position peaked at $301M in Q2 2024.
- 3,778 funds tracked by Wall St. Rank held Merck as of Q1 2026.
Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.