Jane Street’s Y-mAbs Therapeutics YMAB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | – | Sell |
-60,873
| Closed | -$275K | – | 11931 |
|
|
2025
Q2 | $275K | Buy |
+60,873
| New | +$274K | ﹤0.01% | 8010 |
|
|
2025
Q1 | – | Sell |
-33,203
| Closed | -$260K | – | 10815 |
|
|
2024
Q4 | $260K | Buy |
33,203
+14,267
| +75% | +$174K | ﹤0.01% | 7962 |
|
|
2024
Q3 | $249K | Sell |
18,936
-63,023
| -77% | -$799K | ﹤0.01% | 8331 |
|
|
2024
Q2 | $990K | Sell |
81,959
-18,559
| -18% | -$251K | ﹤0.01% | 5795 |
|
|
2024
Q1 | $1.63M | Buy |
100,518
+68,230
| +211% | +$920K | ﹤0.01% | 4493 |
|
|
2023
Q4 | $220K | Buy |
+32,288
| New | +$187K | ﹤0.01% | 8068 |
|
|
2023
Q3 | – | Sell |
-40,195
| Closed | -$273K | – | 9521 |
|
|
2023
Q2 | $273K | Buy |
40,195
+15,930
| +66% | +$119K | ﹤0.01% | 7269 |
|
|
2023
Q1 | $122K | Sell |
24,265
-42,386
| -64% | -$173K | ﹤0.01% | 8120 |
|
|
2022
Q4 | $325K | Buy |
66,651
+54,276
| +439% | +$394K | ﹤0.01% | 6880 |
|
|
2022
Q3 | $178K | Buy |
+12,375
| New | +$205K | ﹤0.01% | 8282 |
|
|
2022
Q1 | – | Sell |
-44,673
| Closed | -$724K | – | 11128 |
|
|
2021
Q4 | $724K | Buy |
44,673
+26,362
| +144% | +$563K | ﹤0.01% | 6571 |
|
|
2021
Q3 | $523K | Buy |
+18,311
| New | +$577K | ﹤0.01% | 7197 |
|
|
2021
Q2 | – | Sell |
-7,204
| Closed | -$218K | – | 10515 |
|
|
2021
Q1 | $218K | Sell |
7,204
-13,403
| -65% | -$549K | ﹤0.01% | 8147 |
|
|
2020
Q4 | $1.02M | Buy |
20,607
+11,743
| +132% | +$543K | ﹤0.01% | 4626 |
|
|
2020
Q3 | $340K | Buy |
8,864
+1,707
| +24% | +$67.9K | ﹤0.01% | 5703 |
|
|
2020
Q2 | $309K | Buy |
+7,157
| New | +$271K | ﹤0.01% | 5793 |
|
Other funds holding YMAB
Jane Street's YMAB Position: Q3 2025 in Review
Jane Street sold out of Y-mAbs Therapeutics (YMAB) in Q3 2025, closing a stake of 60,873 shares — an estimated $275K sold.
Jane Street first reported a position in YMAB in Q2 2020 and held it in 16 quarters. The position peaked at $1.63M in Q1 2024. 2 funds tracked by Wall St. Rank hold YMAB as of Q3 2025.
- Jane Street reported no remaining Y-mAbs Therapeutics position as of Q3 2025 after selling out during the quarter.
- Jane Street sold 60,873 Y-mAbs Therapeutics shares in Q3 2025, an estimated $275K.
- Jane Street first reported a position in Y-mAbs Therapeutics in Q2 2020 and held it in 16 quarters.
- Jane Street's Y-mAbs Therapeutics position peaked at $1.63M in Q1 2024.
- 2 funds tracked by Wall St. Rank held Y-mAbs Therapeutics as of Q3 2025.
Based on Jane Street's 13F filing for Q3 2025, filed 14 Nov 2025.