California State Teachers Retirement System (CalSTRS)
BLUE

California State Teachers Retirement System (CalSTRS)’s bluebird bio BLUE Stock Holding History

California State Teachers Retirement System (CalSTRS)’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
-694
Closed -$3.39K – 2991
2025
Q1 		$3.39K Hold
694
– – ﹤0.01% 2974
2024
Q4 		$5.79K Hold
694
– – ﹤0.01% 2976
2024
Q3 		$7.21K Hold
694
– – ﹤0.01% 2958
2024
Q2 		$13.7K Sell
694
-269
-28% -$5.39K ﹤0.01% 2768
2024
Q1 		$24.6K Buy
963
+82
+9% +$2.1K ﹤0.01% 2640
2023
Q4 		$24.3K Sell
881
-5,002
-85% -$305K ﹤0.01% 2857
2023
Q3 		$358K Sell
5,883
-575
-9% -$40.4K ﹤0.01% 2352
2023
Q2 		$425K Buy
6,458
+21
+0.3% +$1.54K ﹤0.01% 2378
2023
Q1 		$409K Buy
6,437
+1,431
+29% +$163K ﹤0.01% 2390
2022
Q4 		$693K Buy
5,006
+3,482
+228% +$491K ﹤0.01% 2157
2022
Q3 		$193K Sell
1,524
-6
-0.4% -$679 ﹤0.01% 2640
2022
Q2 		$127K Sell
1,530
-2,896
-65% -$225K ﹤0.01% 2796
2022
Q1 		$429K Sell
4,426
-268
-6% -$35.4K ﹤0.01% 2452
2021
Q4 		$938K Sell
4,694
-2,380
-34% -$562K ﹤0.01% 2197
2021
Q3 		$1.75M Sell
7,074
-112
-2% -$32K ﹤0.01% 1801
2021
Q2 		$2.98M Sell
7,186
-1,804
-20% -$715K ﹤0.01% 1536
2021
Q1 		$3.51M Sell
8,990
-48
-0.5% -$23.6K ﹤0.01% 1420
2020
Q4 		$5.07M Buy
9,038
+173
+2% +$110K 0.01% 1103
2020
Q3 		$6.2M Buy
8,865
+365
+4% +$285K 0.01% 866
2020
Q2 		$6.72M Buy
8,500
+1,418
+20% +$1.07M 0.01% 806
2020
Q1 		$4.22M Buy
7,082
+500
+8% +$487K 0.01% 900
2019
Q4 		$7.48M Sell
6,582
-196
-3% -$213K 0.01% 802
2019
Q3 		$8.06M Buy
6,778
+19
+0.3% +$29K 0.02% 734
2019
Q2 		$11.1M Buy
6,759
+146
+2% +$253K 0.02% 625
2019
Q1 		$13.5M Sell
6,613
-21
-0.3% -$37K 0.03% 531
2018
Q4 		$8.52M Buy
6,634
+82
+1% +$126K 0.02% 661
2018
Q3 		$12.4M Buy
6,552
+488
+8% +$1.01M 0.02% 587
2018
Q2 		$12.3M Buy
6,064
+307
+5% +$700K 0.03% 572
2018
Q1 		$12.7M Sell
5,757
-208
-3% -$529K 0.03% 557
2017
Q4 		$13.8M Buy
5,965
+318
+6% +$646K 0.03% 539
2017
Q3 		$10M Sell
5,647
-493
-8% -$689K 0.02% 635
2017
Q2 		$8.36M Sell
6,140
-58
-0.9% -$70K 0.02% 743
2017
Q1 		$7.3M Sell
6,198
-278
-4% -$284K 0.01% 849
2016
Q4 		$5.18M Buy
6,476
+417
+7% +$331K 0.01% 1063
2016
Q3 		$5.32M Buy
6,059
+62
+1% +$44.9K 0.01% 1021
2016
Q2 		$3.36M Buy
5,997
+129
+2% +$73.1K 0.01% 1278
2016
Q1 		$3.23M Buy
5,868
+752
+15% +$462K 0.01% 1305
2015
Q4 		$4.26M Buy
5,116
+78
+2% +$77.9K 0.01% 1047
2015
Q3 		$5.58M Buy
5,038
+409
+9% +$746K 0.01% 890
2015
Q2 		$10.1M Buy
4,629
+1,134
+32% +$2.31M 0.02% 643
2015
Q1 		$5.47M Buy
3,495
+363
+12% +$479K 0.01% 975
2014
Q4 		$3.72M Buy
3,132
+29
+0.9% +$19.4K 0.01% 1189
2014
Q3 		$1.44M Buy
3,103
+416
+15% +$192K ﹤0.01% 1772
2014
Q2 		$1.34M Buy
2,687
+1,730
+181% +$555K ﹤0.01% 1866
2014
Q1 		$282K Hold
957
– – ﹤0.01% 2763
2013
Q4 		$260K Buy
957
+200
+26% +$55.9K ﹤0.01% 2786
2013
Q3 		$264K Buy
+757
New +$281K ﹤0.01% 2763

Other funds holding BLUE

Russell Investments Group
Russell Investments Group London, United Kingdom $114B AUM 41.71% 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

California State Teachers Retirement System (CalSTRS)'s BLUE Position: Q2 2025 in Review

California State Teachers Retirement System (CalSTRS) sold out of bluebird bio (BLUE) in Q2 2025, closing a stake of 694 shares — an estimated $3.39K sold.

California State Teachers Retirement System (CalSTRS) first reported a position in BLUE in Q3 2013 and held it in 47 quarters. The position peaked at $13.8M in Q4 2017. 3 funds tracked by Wall St. Rank hold BLUE as of Q2 2025.

  • California State Teachers Retirement System (CalSTRS) reported no remaining bluebird bio position as of Q2 2025 after selling out during the quarter.
  • California State Teachers Retirement System (CalSTRS) sold 694 bluebird bio shares in Q2 2025, an estimated $3.39K.
  • California State Teachers Retirement System (CalSTRS) first reported a position in bluebird bio in Q3 2013 and held it in 47 quarters.
  • California State Teachers Retirement System (CalSTRS)'s bluebird bio position peaked at $13.8M in Q4 2017.
  • 3 funds tracked by Wall St. Rank held bluebird bio as of Q2 2025.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2025, filed 14 Aug 2025.