Two Sigma Investments
YMAB

Two Sigma Investments’s Y-mAbs Therapeutics YMAB Stock Holding History

Two Sigma Investments’s Portfolio YMAB Stock Details YMAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-125,298
Closed -$565K – 3977
2025
Q2 		$565K Sell
125,298
-29,487
-19% -$133K ﹤0.01% 2535
2025
Q1 		$686K Buy
154,785
+66,448
+75% +$386K ﹤0.01% 2370
2024
Q4 		$692K Buy
88,337
+21,196
+32% +$258K ﹤0.01% 2377
2024
Q3 		$883K Buy
67,141
+5,825
+9% +$73.8K ﹤0.01% 2200
2024
Q2 		$741K Sell
61,316
-42,986
-41% -$580K ﹤0.01% 2158
2024
Q1 		$1.7M Buy
104,302
+42,463
+69% +$572K ﹤0.01% 1602
2023
Q4 		$422K Sell
61,839
-11,192
-15% -$64.7K ﹤0.01% 2544
2023
Q3 		$398K Sell
73,031
-91,743
-56% -$534K ﹤0.01% 2376
2023
Q2 		$1.12M Buy
164,774
+9,147
+6% +$68.5K ﹤0.01% 1882
2023
Q1 		$780K Sell
155,627
-53,839
-26% -$220K ﹤0.01% 1999
2022
Q4 		$1.02M Buy
+209,466
New +$1.52M ﹤0.01% 1687
2022
Q1 		– Sell
-38,792
Closed -$629K – 4529
2021
Q4 		$629K Buy
+38,792
New +$829K ﹤0.01% 3023
2021
Q3 		– Sell
-46,228
Closed -$1.56M – 4796
2021
Q2 		$1.56M Sell
46,228
-227,989
-83% -$7.32M ﹤0.01% 2099
2021
Q1 		$8.29M Buy
274,217
+194,975
+246% +$7.99M 0.02% 785
2020
Q4 		$3.92M Sell
79,242
-13,257
-14% -$613K 0.01% 1067
2020
Q3 		$3.55M Sell
92,499
-55,176
-37% -$2.2M 0.01% 965
2020
Q2 		$6.38M Buy
147,675
+26,895
+22% +$1.02M 0.03% 548
2020
Q1 		$3.15M Sell
120,780
-51,557
-30% -$1.5M 0.03% 727
2019
Q4 		$5.39M Buy
172,337
+160,562
+1,364% +$4.75M 0.02% 907
2019
Q3 		$307K Buy
+11,775
New +$301K ﹤0.01% 2948

Other funds holding YMAB

BIG
Brooklyn Investment Group Brooklyn, New York $3.2B AUM 26.32% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Two Sigma Investments's YMAB Position: Q3 2025 in Review

Two Sigma Investments sold out of Y-mAbs Therapeutics (YMAB) in Q3 2025, closing a stake of 125,298 shares — an estimated $565K sold.

Two Sigma Investments first reported a position in YMAB in Q3 2019 and held it in 20 quarters. The position peaked at $8.29M in Q1 2021. 2 funds tracked by Wall St. Rank hold YMAB as of Q3 2025.

  • Two Sigma Investments reported no remaining Y-mAbs Therapeutics position as of Q3 2025 after selling out during the quarter.
  • Two Sigma Investments sold 125,298 Y-mAbs Therapeutics shares in Q3 2025, an estimated $565K.
  • Two Sigma Investments first reported a position in Y-mAbs Therapeutics in Q3 2019 and held it in 20 quarters.
  • Two Sigma Investments's Y-mAbs Therapeutics position peaked at $8.29M in Q1 2021.
  • 2 funds tracked by Wall St. Rank held Y-mAbs Therapeutics as of Q3 2025.

Based on Two Sigma Investments's 13F filing for Q3 2025, filed 14 Nov 2025.