bluebird bio Ownership | Who Owns bluebird bio?


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bluebird bio Ownership Summary


bluebird bio is owned by 35.91% institutional investors, 0.71% insiders, and 63.39% retail investors. Blackrock is the largest institutional shareholder, holding 14.15% of BLUE shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.99% of its assets in bluebird bio shares.

BLUE Ownership Benchmark


TypeName% Inst% Insiders% Retail
Stockbluebird bio35.91%0.71%63.39%
SectorHealthcare Stocks 279.42%10.64%-190.05%
IndustryBiotech Stocks 64.05%10.69%25.27%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock15.44M14.15%$15.20M
Ameriprise financial6.39M5.86%$6.29M
Bank of america corp /de/1.28M1.17%$1.26M
Morgan stanley516.03K0.47%$507.88K
Jacobs levy equity management332.70K0.30%$327.44K
Virtu financial277.77K0.25%$273.00K
Susquehanna group, llp256.70K0.24%$251.57K
Citadel advisors195.80K0.18%$192.71K
D. e. shaw117.17K0.11%$115.32K
Gts securities46.20K0.04%$45.46K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Virtu financial277.77K0.02%$273.00K
Ameriprise financial6.39M0.00%$6.29M
Jacobs levy equity management332.70K0.00%$327.44K
Blackrock15.44M0.00%$15.20M
Great valley advisor group12.00K0.00%$12.00K
Gts securities46.20K0.00%$45.46K
Bank of america corp /de/1.28M0.00%$1.26M
Halpern financial300.000.00%$295.00K
D. e. shaw117.17K0.00%$115.32K
Proshare advisors---

Top Buyers

HolderShares% AssetsChange
Jacobs levy equity management332.70K0.00%332.70K
Virtu financial277.77K0.02%277.77K
Blackrock15.44M0.00%263.65K
Citadel advisors195.80K-73.40K
Raymond james financial services advisors27.71K-50.00

Top Sellers

HolderShares% AssetsChange
Granahan investment management---7.71M
State street---3.84M
Tang capital management---2.50M
Fmr---2.48M
Frazier life sciences management---1.71M

Sold Out

HolderChange
Clean yield group-1.00
Larson financial group-1.00
Southstate-2.00
St germain d j-2.00
1620 investment advisors-2.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20259210.84%3,501,17423.27%351673.23%3680.00%26-57.38%
Dec 31, 20244-97.18%25,167-99.96%-0.00%1-98.18%2-95.35%
Sep 30, 2024141-9.03%62,348,731-20.43%320.62%54-12.90%43-8.51%
Jun 30, 2024154-7.23%78,352,735-23.87%710.81%61-29.07%4714.63%
Mar 31, 2024166-16.16%102,924,462-21.06%940.66%86-25.86%412.50%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv293.12K2.99%-
Vanguard US Total Market Shares ETF5.86M2.99%1.00
iShares Russell 2000 ETF239.80K2.45%41.00
ACATIS Datini Valueflex Fonds A165.00K1.69%-
Vanguard Institutional Extnd Mkt Idx Tr159.57K1.63%-
Fidelity Select Pharmaceuticals Port2.23M1.15%-
M&G (ACS) Granahan US Sm Cp Gr GBPZ1AAcc1.81M0.93%86.07K
iShares Russell 2000 Value ETF90.10K0.92%-305.00
Fidelity Small Cap Index77.35K0.79%-21.25K
Stork Fund Dynamic MultiStrategies O EUR63.93K0.65%63.93K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 03, 2025Colvin Richard A Chief Medical OfficerSell$2.29K
Mar 03, 2025Klima Thomas J See RemarksSell$1.96K
Mar 03, 2025Obenshain Andrew President and CEOSell$3.61K
Feb 03, 2025Klima Thomas J See RemarksSell$901.89
Feb 03, 2025Colvin Richard A Chief Medical OfficerSell$473.12

Insider Transactions Trends


DateBuySell
2025 Q2--
2025 Q1-9
2024 Q4-2
2024 Q3-2
2024 Q2-1

BLUE Ownership FAQ


Who Owns bluebird bio?

bluebird bio shareholders are primarily institutional investors at 35.91%, followed by 0.71% insiders and 63.38% retail investors. The average institutional ownership in bluebird bio's industry, Biotech Stocks , is 64.05%, which bluebird bio falls below.

Who owns the most shares of bluebird bio?

bluebird bio’s largest shareholders are Blackrock (15.44M shares, 14.15%), Ameriprise financial (6.39M shares, 5.86%), and Bank of america corp /de/ (1.28M shares, 1.17%). Together, they hold 21.19% of bluebird bio’s total shares outstanding.

Does Blackrock own bluebird bio?

Yes, BlackRock owns 14.15% of bluebird bio, totaling 15.44M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 15.2M$. In the last quarter, BlackRock increased its holdings by 263.65K shares, a 1.74% change.

Who is bluebird bio’s biggest shareholder by percentage of total assets invested?

Virtu financial is bluebird bio’s biggest shareholder by percentage of total assets invested, with 0.02% of its assets in 277.77K bluebird bio shares, valued at 273K$.

Who is the top mutual fund holder of bluebird bio shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of bluebird bio shares, with 2.99% of its total shares outstanding invested in 293.12K bluebird bio shares.

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