Jane Street
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Jane Street’s Keros Therapeutics KROS Stock Holding History

Jane Street’s Portfolio KROS Stock Details KROS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$491K Sell
44,457
-117,552
-73% -$1.82M ﹤0.01% 8083
2025
Q4 		$3.3M Sell
162,009
-446
-0.3% -$7.83K ﹤0.01% 3894
2025
Q3 		$2.57M Buy
162,455
+105,174
+184% +$1.55M ﹤0.01% 4472
2025
Q2 		$765K Buy
57,281
+10,336
+22% +$140K ﹤0.01% 6105
2025
Q1 		$478K Sell
46,945
-54,167
-54% -$629K ﹤0.01% 6941
2024
Q4 		$1.6M Buy
101,112
+40,934
+68% +$2.13M ﹤0.01% 4516
2024
Q3 		$3.49M Buy
60,178
+15,281
+34% +$755K 0.01% 3456
2024
Q2 		$2.05M Buy
44,897
+25,518
+132% +$1.37M ﹤0.01% 4426
2024
Q1 		$1.28M Sell
19,379
-38
-0.2% -$2.25K ﹤0.01% 4947
2023
Q4 		$772K Buy
19,417
+8,811
+83% +$276K ﹤0.01% 6035
2023
Q3 		$338K Sell
10,606
-1,960
-16% -$73.2K ﹤0.01% 6890
2023
Q2 		$505K Sell
12,566
-6,476
-34% -$284K ﹤0.01% 6309
2023
Q1 		$813K Buy
+19,042
New +$962K ﹤0.01% 5411
2022
Q4 		– Hold
0
– – – 9684
2022
Q3 		– Sell
-33,356
Closed -$921K – 10137
2022
Q2 		$921K Buy
+33,356
New +$1.46M ﹤0.01% 5638
2022
Q1 		– Hold
0
– – – 10739
2020
Q3 		– Sell
-10,397
Closed -$390K – 7610
2020
Q2 		$390K Buy
+10,397
New +$320K ﹤0.01% 5445

Other funds holding KROS

BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $1.6B AUM 121.58% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
O
OrbiMed New York $4.59B AUM 125.28% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $70.4B AUM 20.22% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $23.8B AUM 25.4% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 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
MAP
Madison Avenue Partners New York $2.3B AUM 115.82% 1-Year Est. Return