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
-389,200
Closed -$1.9M – 7951
2025
Q1 		$1.9M Buy
389,200
+272,600
+234% +$1.64M 0.01% 1858
2024
Q4 		$972K Buy
116,600
+106,900
+1,102% +$934K ﹤0.01% 2601
2024
Q3 		$101K Sell
9,700
-14,690
-60% -$244K ﹤0.01% 4169
2024
Q2 		$480K Buy
24,390
+1,115
+5% +$22.3K ﹤0.01% 2600
2024
Q1 		$596K Sell
23,275
-40,150
-63% -$1.03M ﹤0.01% 2561
2023
Q4 		$1.75M Buy
63,425
+29,505
+87% +$1.8M ﹤0.01% 1980
2023
Q3 		$2.06M Sell
33,920
-450
-1% -$31.6K 0.01% 1620
2023
Q2 		$2.26M Buy
34,370
+32,875
+2,199% +$2.41M 0.01% 1595
2023
Q1 		$95.1K Buy
1,495
+585
+64% +$66.8K ﹤0.01% 4344
2022
Q4 		$126K Sell
910
-8,640
-90% -$1.22M ﹤0.01% 4230
2022
Q3 		$1.21M Buy
9,550
+4,625
+94% +$523K ﹤0.01% 2378
2022
Q2 		$408K Buy
4,925
+1,580
+47% +$123K ﹤0.01% 3617
2022
Q1 		$324K Sell
3,345
-7,835
-70% -$1.03M ﹤0.01% 4288
2021
Q4 		$2.23M Sell
11,180
-9,425
-46% -$2.22M ﹤0.01% 2481
2021
Q3 		$5.1M Buy
20,605
+2,679
+15% +$766K 0.01% 1663
2021
Q2 		$7.43M Buy
17,926
+363
+2% +$144K 0.01% 1332
2021
Q1 		$6.86M Buy
17,563
+8,531
+94% +$4.2M 0.01% 1238
2020
Q4 		$5.06M Buy
9,032
+1,158
+15% +$734K 0.01% 1268
2020
Q3 		$5.5M Sell
7,874
-742
-9% -$579K 0.02% 858
2020
Q2 		$6.81M Sell
8,616
-3,080
-26% -$2.32M 0.03% 612
2020
Q1 		$6.96M Buy
11,696
+6,910
+144% +$6.73M 0.06% 387
2019
Q4 		$5.44M Buy
4,786
+2,277
+91% +$2.48M 0.04% 634
2019
Q3 		$2.98M Sell
2,509
-5,396
-68% -$8.24M 0.02% 910
2019
Q2 		$13M Buy
7,905
+4,601
+139% +$7.96M 0.12% 172
2019
Q1 		$6.73M Sell
3,304
-3,798
-53% -$6.69M 0.08% 308
2018
Q4 		$9.13M Sell
7,102
-1,027
-13% -$1.58M 0.08% 279
2018
Q3 		$15.4M Buy
8,129
+949
+13% +$1.96M 0.12% 165
2018
Q2 		$14.6M Buy
7,180
+294
+4% +$670K 0.12% 163
2018
Q1 		$15.2M Sell
6,886
-6,516
-49% -$16.6M 0.15% 125
2017
Q4 		$30.9M Buy
13,402
+6,554
+96% +$13.3M 0.22% 76
2017
Q3 		$12.2M Buy
6,848
+865
+14% +$1.21M 0.11% 204
2017
Q2 		$8.14M Sell
5,983
-3,644
-38% -$4.4M 0.08% 275
2017
Q1 		$11.3M Sell
9,627
-648
-6% -$661K 0.13% 167
2016
Q4 		$8.21M Buy
10,275
+4,616
+82% +$3.67M 0.08% 280
2016
Q3 		$4.97M Buy
5,659
+1,598
+39% +$1.16M 0.05% 416
2016
Q2 		$2.28M Sell
4,061
-3,211
-44% -$1.82M 0.03% 750
2016
Q1 		$4M Buy
7,272
+617
+9% +$379K 0.06% 427
2015
Q4 		$5.54M Buy
6,655
+2,571
+63% +$2.57M 0.07% 330
2015
Q3 		$4.53M Buy
4,084
+1,498
+58% +$2.73M 0.06% 382
2015
Q2 		$5.64M Buy
2,586
+1,034
+67% +$2.11M 0.08% 283
2015
Q1 		$2.43M Sell
1,552
-401
-21% -$529K 0.04% 545
2014
Q4 		$2.32M Buy
1,953
+100
+5% +$66.8K 0.04% 570
2014
Q3 		$861K Buy
1,853
+1,143
+161% +$527K 0.01% 1211
2014
Q2 		$355K Buy
710
+401
+130% +$129K 0.01% 1928
2014
Q1 		$91K Buy
+309
New +$93.6K ﹤0.01% 3160

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.