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Livermore
Livermore
ZHEN

bluebird bio, Inc.

BLUEDelisted Jun 2, 2025
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001293971

bluebird bio, Inc. was delisted on Jun 2, 2025; its insiders filed their last Form 4 on Jun 3, 2025; 85 institutions reported holding it in 13F filings for Q1 2025, worth $17.1M in total; no superinvestor held it.

13F holders, Q3 2025

Institutional positions in bluebird bio, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

BLUE is no longer listed, and 13F filings after Q1 2025 list far fewer holders. See Q1 2025

Institutional holders
0
−3 vs. Q2 2025
Shares held
0
−1.39K (−100.0%) vs. Q2 2025
Total value
$0
−$6.89K (−100.0%) vs. Q2 2025
New holders
0
0 more added
Sold out
3
0 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BLUE on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 0 institutions
Q1 2021: 235 institutionsQ2 2021: 235 institutionsQ3 2021: 200 institutionsQ4 2021: 176 institutionsQ1 2022: 178 institutionsQ2 2022: 156 institutionsQ3 2022: 163 institutionsQ4 2022: 186 institutionsQ1 2023: 180 institutionsQ2 2023: 177 institutionsQ3 2023: 170 institutionsQ4 2023: 188 institutionsQ1 2024: 159 institutionsQ2 2024: 152 institutionsQ3 2024: 140 institutionsQ4 2024: 83 institutionsQ1 2025: 85 institutionsQ2 2025: 3 institutionsQ3 2025: 0 institutionsQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ3 2025: $0
Q1 2021: $1.58BQ2 2021: $1.70BQ3 2021: $996.6MQ4 2021: $581.9MQ1 2022: $300.5MQ2 2022: $227.9MQ3 2022: $414.9MQ4 2022: $470.5MQ1 2023: $309.5MQ2 2023: $308.6MQ3 2023: $272.7MQ4 2023: $180.2MQ1 2024: $131.6MQ2 2024: $77.2MQ3 2024: $32.9MQ4 2024: $23.8MQ1 2025: $17.1MQ2 2025: $6.89KQ3 2025: $0Q4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding BLUE and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 20250$0
Q2 20253$6.89K
Q1 202585$17.1M
Q4 202483$23.8M
Q3 2024140$32.9M
Q2 2024152$77.2M
Q1 2024159$131.6M
Q4 2023188$180.2M
Q3 2023170$272.7M
Q2 2023177$308.6M
Q1 2023180$309.5M
Q4 2022186$470.5M
Q3 2022163$414.9M
Q2 2022156$227.9M
Q1 2022178$300.5M
Q4 2021176$581.9M
Q3 2021200$996.6M
Q2 2021235$1.70B
Q1 2021235$1.58B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding bluebird bio, Inc.; share changes are against Q2 2025.

Institutions holding BLUE in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Russell Investments Group, Ltd.0$00.00%−1,386−100.0%Sold out
Barclays PLC0$00.00%−1−100.0%Sold out
IFP Advisors, Inc0$00.00%−7−100.0%Sold out