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
-21,693
Closed -$106K – 7950
2025
Q1 		$106K Buy
+21,693
New +$130K ﹤0.01% 4555
2024
Q4 		– Sell
-9,431
Closed -$82.4K – 7282
2024
Q3 		$98K Sell
9,431
-6,652
-41% -$111K ﹤0.01% 4197
2024
Q2 		$317K Sell
16,083
-10,050
-38% -$201K ﹤0.01% 2986
2024
Q1 		$669K Sell
26,133
-21,272
-45% -$545K ﹤0.01% 2461
2023
Q4 		$1.31M Buy
47,405
+14,169
+43% +$864K ﹤0.01% 2216
2023
Q3 		$2.02M Sell
33,236
-6,562
-16% -$461K 0.01% 1635
2023
Q2 		$2.62M Buy
39,798
+31,752
+395% +$2.32M 0.01% 1458
2023
Q1 		$512K Buy
+8,046
New +$919K ﹤0.01% 2762
2022
Q4 		– Sell
-7,875
Closed -$1.11M – 7251
2022
Q3 		$997K Buy
7,875
+4,948
+169% +$560K ﹤0.01% 2591
2022
Q2 		$242K Buy
2,927
+1,211
+71% +$93.9K ﹤0.01% 4119
2022
Q1 		$166K Sell
1,716
-6,040
-78% -$797K ﹤0.01% 4992
2021
Q4 		$1.55M Sell
7,756
-5,080
-40% -$1.2M ﹤0.01% 2873
2021
Q3 		$3.18M Buy
12,836
+836
+7% +$239K ﹤0.01% 2178
2021
Q2 		$4.97M Sell
12,000
-2,417
-17% -$958K 0.01% 1694
2021
Q1 		$5.63M Buy
14,417
+8,198
+132% +$4.04M 0.01% 1414
2020
Q4 		$3.49M Buy
6,219
+4,561
+275% +$2.89M 0.01% 1579
2020
Q3 		$1.16M Sell
1,658
-629
-28% -$491K ﹤0.01% 2062
2020
Q2 		$1.81M Sell
2,287
-3,200
-58% -$2.41M 0.01% 1534
2020
Q1 		$3.27M Buy
5,487
+3,857
+237% +$3.76M 0.03% 745
2019
Q4 		$1.85M Sell
1,630
-111
-6% -$121K 0.01% 1337
2019
Q3 		$2.07M Sell
1,741
-831
-32% -$1.27M 0.02% 1194
2019
Q2 		$4.24M Buy
2,572
+2,179
+554% +$3.77M 0.04% 619
2019
Q1 		$800K Sell
393
-2,102
-84% -$3.7M 0.01% 1566
2018
Q4 		$3.21M Sell
2,495
-1,355
-35% -$2.08M 0.03% 736
2018
Q3 		$7.28M Sell
3,850
-391
-9% -$808K 0.06% 396
2018
Q2 		$8.62M Buy
4,241
+1,529
+56% +$3.49M 0.07% 302
2018
Q1 		$6M Buy
+2,712
New +$6.9M 0.06% 385
2017
Q2 		– Sell
-670
Closed -$808K – 4746
2017
Q1 		$789K Buy
670
+57
+9% +$58.1K 0.01% 1503
2016
Q4 		$490K Sell
613
-595
-49% -$472K ﹤0.01% 1787
2016
Q3 		$1.06M Sell
1,208
-853
-41% -$618K 0.01% 1242
2016
Q2 		$1.16M Sell
2,061
-1,964
-49% -$1.11M 0.01% 1167
2016
Q1 		$2.22M Buy
4,025
+918
+30% +$564K 0.03% 710
2015
Q4 		$2.58M Buy
3,107
+1,499
+93% +$1.5M 0.03% 704
2015
Q3 		$1.78M Buy
1,608
+1,535
+2,103% +$2.8M 0.02% 863
2015
Q2 		$159K Sell
73
-455
-86% -$927K ﹤0.01% 2714
2015
Q1 		$827K Sell
528
-498
-49% -$657K 0.01% 1230
2014
Q4 		$1.22M Buy
1,026
+908
+769% +$607K 0.02% 950
2014
Q3 		$55K Buy
+118
New +$54.4K ﹤0.01% 3450
2014
Q2 		– Sell
-173
Closed -$55.5K – 5167
2014
Q1 		$51K Buy
+173
New +$52.4K ﹤0.01% 3609

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.