Group One Trading
BLUE

Group One Trading’s bluebird bio BLUE Stock Holding History

Group One Trading’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
Q2 		– Sell
-3,875,200
Closed -$18.9M – 7949
2025
Q1 		$18.9M Buy
3,875,200
+23,500
+0.6% +$141K 0.05% 343
2024
Q4 		$32.1M Buy
3,851,700
+3,848,980
+141,507% +$33.6M 0.07% 231
2024
Q3 		$28.3K Sell
2,720
-6,285
-70% -$104K ﹤0.01% 5033
2024
Q2 		$177K Sell
9,005
-2,250
-20% -$45.1K ﹤0.01% 3502
2024
Q1 		$288K Sell
11,255
-53,790
-83% -$1.38M ﹤0.01% 3245
2023
Q4 		$1.8M Buy
65,045
+47,405
+269% +$2.89M ﹤0.01% 1963
2023
Q3 		$1.07M Buy
17,640
+3,260
+23% +$229K ﹤0.01% 2195
2023
Q2 		$946K Buy
14,380
+1,955
+16% +$143K ﹤0.01% 2410
2023
Q1 		$790K Sell
12,425
-2,325
-16% -$266K ﹤0.01% 2339
2022
Q4 		$2.04M Buy
14,750
+4,010
+37% +$565K ﹤0.01% 1797
2022
Q3 		$1.36M Buy
10,740
+7,205
+204% +$815K ﹤0.01% 2257
2022
Q2 		$293K Buy
3,535
+2,420
+217% +$188K ﹤0.01% 3928
2022
Q1 		$108K Sell
1,115
-6,275
-85% -$828K ﹤0.01% 5413
2021
Q4 		$1.48M Buy
7,390
+2,048
+38% +$483K ﹤0.01% 2933
2021
Q3 		$1.32M Sell
5,342
-9,125
-63% -$2.61M ﹤0.01% 3104
2021
Q2 		$5.99M Buy
14,467
+5,898
+69% +$2.34M 0.01% 1526
2021
Q1 		$3.35M Sell
8,569
-286
-3% -$141K 0.01% 1919
2020
Q4 		$4.96M Buy
8,855
+2,911
+49% +$1.84M 0.01% 1283
2020
Q3 		$4.15M Sell
5,944
-309
-5% -$241K 0.01% 1037
2020
Q2 		$4.94M Sell
6,253
-1,313
-17% -$990K 0.02% 811
2020
Q1 		$4.5M Sell
7,566
-4,755
-39% -$4.63M 0.04% 586
2019
Q4 		$14M Buy
12,321
+2,640
+27% +$2.87M 0.1% 233
2019
Q3 		$11.5M Buy
9,681
+2,555
+36% +$3.9M 0.09% 233
2019
Q2 		$11.7M Buy
7,126
+711
+11% +$1.23M 0.11% 199
2019
Q1 		$13.1M Sell
6,415
-6,879
-52% -$12.1M 0.15% 128
2018
Q4 		$17.1M Buy
13,294
+5,389
+68% +$8.27M 0.15% 126
2018
Q3 		$14.9M Sell
7,905
-6,315
-44% -$13M 0.12% 173
2018
Q2 		$28.9M Buy
14,220
+11,225
+375% +$25.6M 0.25% 63
2018
Q1 		$6.63M Sell
2,995
-7,319
-71% -$18.6M 0.07% 349
2017
Q4 		$23.8M Buy
10,314
+4,856
+89% +$9.86M 0.17% 111
2017
Q3 		$9.71M Sell
5,458
-1,135
-17% -$1.59M 0.09% 271
2017
Q2 		$8.97M Buy
6,593
+4,308
+189% +$5.2M 0.09% 230
2017
Q1 		$2.69M Sell
2,285
-1,706
-43% -$1.74M 0.03% 682
2016
Q4 		$3.19M Buy
3,991
+1,544
+63% +$1.23M 0.03% 640
2016
Q3 		$2.15M Buy
2,447
+448
+22% +$325K 0.02% 810
2016
Q2 		$1.12M Buy
1,999
+702
+54% +$398K 0.01% 1186
2016
Q1 		$714K Sell
1,297
-594
-31% -$365K 0.01% 1429
2015
Q4 		$1.57M Sell
1,891
-108
-5% -$108K 0.02% 1018
2015
Q3 		$2.22M Sell
1,999
-2,201
-52% -$4.01M 0.03% 723
2015
Q2 		$9.16M Buy
4,200
+2,725
+185% +$5.55M 0.13% 168
2015
Q1 		$2.31M Sell
1,475
-571
-28% -$753K 0.04% 569
2014
Q4 		$2.43M Buy
2,046
+626
+44% +$418K 0.04% 542
2014
Q3 		$660K Buy
1,420
+694
+96% +$320K 0.01% 1411
2014
Q2 		$363K Buy
726
+657
+952% +$211K 0.01% 1907
2014
Q1 		$20K Buy
+69
New +$20.9K ﹤0.01% 4234

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

Group One Trading's BLUE Position: Q2 2025 in Review

Group One Trading sold out of bluebird bio (BLUE) in Q2 2025, closing a stake of 21,693 shares — an estimated $106K sold.

Group One Trading first reported a position in BLUE in Q1 2014 and held it in 39 quarters. The position peaked at $8.62M in Q2 2018. 3 funds tracked by Wall St. Rank hold BLUE as of Q2 2025.

  • Group One Trading reported no remaining bluebird bio position as of Q2 2025 after selling out during the quarter.
  • Group One Trading sold 21,693 bluebird bio shares in Q2 2025, an estimated $106K.
  • Group One Trading first reported a position in bluebird bio in Q1 2014 and held it in 39 quarters.
  • Group One Trading's bluebird bio position peaked at $8.62M in Q2 2018.
  • 3 funds tracked by Wall St. Rank held bluebird bio as of Q2 2025.

Based on Group One Trading's 13F filing for Q2 2025, filed 14 Aug 2025.