Jane Street
BLUE

Jane Street’s bluebird bio BLUE Stock Holding History

Jane Street’s Portfolio BLUE Stock Details BLUE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-40,288
Closed -$242K – 9460
2024
Q4 		$336K Buy
40,288
+27,327
+211% +$239K ﹤0.01% 7551
2024
Q3 		$135K Sell
12,961
-41,938
-76% -$697K ﹤0.01% 8861
2024
Q2 		$1.08M Buy
54,899
+14,660
+36% +$294K ﹤0.01% 5620
2024
Q1 		$1.03M Buy
40,239
+23,170
+136% +$594K ﹤0.01% 5359
2023
Q4 		$471K Sell
17,069
-13,285
-44% -$810K ﹤0.01% 6867
2023
Q3 		$1.85M Sell
30,354
-17,311
-36% -$1.22M ﹤0.01% 4187
2023
Q2 		$3.14M Buy
47,665
+21,961
+85% +$1.61M ﹤0.01% 3415
2023
Q1 		$1.63M Buy
25,704
+8,504
+49% +$971K ﹤0.01% 4168
2022
Q4 		$2.38M Sell
17,200
-14,690
-46% -$2.07M ﹤0.01% 3590
2022
Q3 		$4.04M Buy
31,890
+17,219
+117% +$1.95M ﹤0.01% 2955
2022
Q2 		$1.22M Buy
14,671
+12,220
+499% +$948K ﹤0.01% 5116
2022
Q1 		$237K Sell
2,451
-6,590
-73% -$870K ﹤0.01% 8775
2021
Q4 		$1.83M Sell
9,041
-1,260
-12% -$297K ﹤0.01% 4653
2021
Q3 		$2.55M Buy
10,301
+1,997
+24% +$571K ﹤0.01% 3978
2021
Q2 		$3.44M Sell
8,304
-4,764
-36% -$1.89M ﹤0.01% 3320
2021
Q1 		$5.1M Buy
13,068
+4,725
+57% +$2.33M ﹤0.01% 2377
2020
Q4 		$4.68M Buy
8,343
+915
+12% +$580K ﹤0.01% 2222
2020
Q3 		$5.19M Buy
7,428
+2,610
+54% +$2.04M ﹤0.01% 1809
2020
Q2 		$3.81M Buy
4,818
+4,079
+552% +$3.08M ﹤0.01% 2184
2020
Q1 		$440K Sell
739
-2,184
-75% -$2.13M ﹤0.01% 3770
2019
Q4 		$3.32M Buy
2,923
+922
+46% +$1M ﹤0.01% 1423
2019
Q3 		$2.38M Buy
2,001
+172
+9% +$263K ﹤0.01% 1616
2019
Q2 		$3.01M Buy
1,829
+220
+14% +$381K 0.01% 1473
2019
Q1 		$3.28M Buy
1,609
+557
+53% +$981K 0.01% 1500
2018
Q4 		$1.35M Sell
1,052
-119
-10% -$183K ﹤0.01% 2179
2018
Q3 		$2.21M Sell
1,171
-1,530
-57% -$3.16M ﹤0.01% 1796
2018
Q2 		$5.49M Buy
2,701
+2,065
+325% +$4.71M 0.01% 962
2018
Q1 		$1.41M Sell
636
-844
-57% -$2.15M ﹤0.01% 2250
2017
Q4 		$3.41M Buy
1,480
+237
+19% +$481K 0.01% 1129
2017
Q3 		$2.21M Buy
1,243
+338
+37% +$472K 0.01% 1500
2017
Q2 		$1.23M Buy
905
+447
+98% +$539K ﹤0.01% 1979
2017
Q1 		$539K Sell
458
-1,210
-73% -$1.23M ﹤0.01% 2785
2016
Q4 		$1.33M Buy
1,668
+320
+24% +$254K 0.01% 1717
2016
Q3 		$1.18M Buy
1,348
+590
+78% +$427K 0.01% 1761
2016
Q2 		$425K Sell
758
-1,282
-63% -$726K ﹤0.01% 2924
2016
Q1 		$1.12M Buy
2,040
+29
+1% +$17.8K 0.01% 1748
2015
Q4 		$1.67M Buy
2,011
+1,112
+124% +$1.11M 0.01% 1231
2015
Q3 		$996K Sell
899
-680
-43% -$1.24M 0.01% 1641
2015
Q2 		$3.44M Buy
1,579
+1,121
+245% +$2.28M 0.02% 665
2015
Q1 		$717K Buy
+458
New +$604K 0.01% 1683
2014
Q4 		– Sell
-1,522
Closed -$707K – 2482
2014
Q3 		$707K Sell
1,522
-580
-28% -$268K 0.01% 1161
2014
Q2 		$1.05M Buy
+2,102
New +$674K 0.01% 878

Other funds holding BLUE

Russell Investments Group
Russell Investments Group London, United Kingdom $93.1B AUM 28.26% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Jane Street's BLUE Position: Q1 2025 in Review

Jane Street sold out of bluebird bio (BLUE) in Q1 2025, closing a stake of 40,288 shares — an estimated $242K sold.

Jane Street first reported a position in BLUE in Q2 2014 and held it in 42 quarters. The position peaked at $5.49M in Q2 2018. 85 funds tracked by Wall St. Rank hold BLUE as of Q1 2025.

  • Jane Street reported no remaining bluebird bio position as of Q1 2025 after selling out during the quarter.
  • Jane Street sold 40,288 bluebird bio shares in Q1 2025, an estimated $242K.
  • Jane Street first reported a position in bluebird bio in Q2 2014 and held it in 42 quarters.
  • Jane Street's bluebird bio position peaked at $5.49M in Q2 2018.
  • 85 funds tracked by Wall St. Rank held bluebird bio as of Q1 2025.

Based on Jane Street's 13F filing for Q1 2025, filed 14 May 2025.