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 | $465M | Sell |
3,869,500
-852,500
| -18% | -$98.4M | 0.06% | 217 |
|
|
2025
Q4 | $497M | Buy |
4,722,000
+2,500,800
| +113% | +$235M | 0.08% | 179 |
|
|
2025
Q3 | $186M | Sell |
2,221,200
-155,200
| -7% | -$12.8M | 0.03% | 370 |
|
|
2025
Q2 | $188M | Buy |
2,376,400
+962,100
| +68% | +$76.5M | 0.04% | 306 |
|
|
2025
Q1 | $127M | Buy |
1,414,300
+824,100
| +140% | +$76.9M | 0.03% | 309 |
|
|
2024
Q4 | $58.7M | Sell |
590,200
-545,600
| -48% | -$56.2M | 0.01% | 619 |
|
|
2024
Q3 | $129M | Buy |
1,135,800
+66,800
| +6% | +$7.94M | 0.03% | 316 |
|
|
2024
Q2 | $132M | Sell |
1,069,000
-1,347,800
| -56% | -$174M | 0.03% | 311 |
|
|
2024
Q1 | $319M | Buy |
2,416,800
+1,140,400
| +89% | +$141M | 0.07% | 145 |
|
|
2023
Q4 | $139M | Sell |
1,276,400
-49,900
| -4% | -$5.18M | 0.04% | 303 |
|
|
2023
Q3 | $137M | Buy |
1,326,300
+31,100
| +2% | +$3.35M | 0.04% | 241 |
|
|
2023
Q2 | $149M | Sell |
1,295,200
-37,300
| -3% | -$4.24M | 0.05% | 225 |
|
|
2023
Q1 | $142M | Sell |
1,332,500
-264,300
| -17% | -$28.5M | 0.06% | 212 |
|
|
2022
Q4 | $177M | Buy |
1,596,800
+213,700
| +15% | +$21.8M | 0.08% | 163 |
|
|
2022
Q3 | $119M | Sell |
1,383,100
-98,700
| -7% | -$8.81M | 0.05% | 232 |
|
|
2022
Q2 | $135M | Sell |
1,481,800
-490,500
| -25% | -$43.5M | 0.06% | 225 |
|
|
2022
Q1 | $162M | Buy |
1,972,300
+230,300
| +13% | +$18.2M | 0.05% | 235 |
|
|
2021
Q4 | $134M | Sell |
1,742,000
-521,100
| -23% | -$41.5M | 0.04% | 280 |
|
|
2021
Q3 | $170M | Buy |
2,263,100
+1,649,500
| +269% | +$125M | 0.06% | 212 |
|
|
2021
Q2 | $47.7M | Sell |
613,600
-454,626
| -43% | -$33.8M | 0.02% | 573 |
|
|
2021
Q1 | $78.6M | Sell |
1,068,226
-401,594
| -27% | -$29.6M | 0.04% | 346 |
|
|
2020
Q4 | $115M | Buy |
1,469,820
+408,720
| +39% | +$31.3M | 0.06% | 214 |
|
|
2020
Q3 | $84M | Sell |
1,061,100
-428,213
| -29% | -$33.5M | 0.05% | 260 |
|
|
2020
Q2 | $110M | Buy |
1,489,313
+14,148
| +1% | +$1.07M | 0.08% | 162 |
|
|
2020
Q1 | $108M | Buy |
1,475,165
+1,054,917
| +251% | +$82.9M | 0.11% | 126 |
|
|
2019
Q4 | $36.5M | Sell |
420,248
-104,066
| -20% | -$8.55M | 0.05% | 234 |
|
|
2019
Q3 | $42.1M | Buy |
524,314
+28,610
| +6% | +$2.29M | 0.07% | 195 |
|
|
2019
Q2 | $39.7M | Buy |
495,704
+297,842
| +151% | +$22.8M | 0.07% | 210 |
|
|
2019
Q1 | $15.7M | Sell |
197,862
-68,330
| -26% | -$5.11M | 0.03% | 494 |
|
|
2018
Q4 | $19.4M | Buy |
266,192
+133,410
| +100% | +$9.42M | 0.04% | 329 |
|
|
2018
Q3 | $8.99M | Sell |
132,782
-100,084
| -43% | -$6.38M | 0.02% | 672 |
|
|
2018
Q2 | $13.5M | Buy |
232,866
+166,528
| +251% | +$9.39M | 0.03% | 466 |
|
|
2018
Q1 | $3.45M | Buy |
66,338
+46,112
| +228% | +$2.49M | 0.01% | 1276 |
|
|
2017
Q4 | $1.09M | Sell |
20,226
-29,764
| -60% | -$1.65M | ﹤0.01% | 2248 |
|
|
2017
Q3 | $3.05M | Sell |
49,990
-9,012
| -15% | -$546K | 0.01% | 1228 |
|
|
2017
Q2 | $3.61M | Buy |
59,002
+36,784
| +166% | +$2.24M | 0.01% | 992 |
|
|
2017
Q1 | $1.35M | Sell |
22,218
-25,047
| -53% | -$1.52M | 0.01% | 1746 |
|
|
2016
Q4 | $2.65M | Buy |
47,265
+18,655
| +65% | +$1.09M | 0.01% | 1062 |
|
|
2016
Q3 | $1.7M | Sell |
28,610
-185,916
| -87% | -$10.9M | 0.01% | 1365 |
|
|
2016
Q2 | $11.8M | Buy |
214,526
+76,190
| +55% | +$4.05M | 0.06% | 290 |
|
|
2016
Q1 | $6.98M | Buy |
138,336
+78,810
| +132% | +$3.86M | 0.04% | 426 |
|
|
2015
Q4 | $3M | Buy |
59,526
+18,549
| +45% | +$935K | 0.02% | 767 |
|
|
2015
Q3 | $1.93M | Buy |
40,977
+31,650
| +339% | +$1.68M | 0.01% | 1012 |
|
|
2015
Q2 | $507K | Sell |
9,327
-92,119
| -91% | -$5.17M | ﹤0.01% | 2282 |
|
|
2015
Q1 | $5.56M | Buy |
101,446
+84,992
| +517% | +$4.81M | 0.04% | 363 |
|
|
2014
Q4 | $892K | Buy |
+16,454
| New | +$917K | 0.01% | 1106 |
|
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.