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UPDATE: JPMorgan Downgrades bluebird bio (BLUE) to Neutral

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Form SC 13G/A bluebird bio, Inc. Filed by: Capital Research Global Investors

February 16, 2021 3:29 PM EST

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 SCHEDULE 13G
Under the Securities Exchange Act of 1934 (Amendment No. 8 )*

Bluebird Bio, Inc.
(Name of Issuer)

Common Stock
(Title of Class of Securities)

09609G100
(CUSIP Number)

December 31, 2020
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[X] Rule 13d-1(b)... More

Form SC 13G/A bluebird bio, Inc. Filed by: Capital World Investors

February 16, 2021 12:32 PM EST

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 SCHEDULE 13G
Under the Securities Exchange Act of 1934 (Amendment No. 3 )*

Bluebird Bio, Inc.
(Name of Issuer)

Common Stock
(Title of Class of Securities)

09609G100
(CUSIP Number)

December 31, 2020
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[X] Rule 13d-1(b)... More

Form SC 13G bluebird bio, Inc. Filed by: SANDS CAPITAL MANAGEMENT, LLC

February 16, 2021 11:30 AM EST

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ------------------------------------------------------------------------------- SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO Section 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO Section 240.13d-2 Under the Securities Exchange Act of 1934 (Amendment No.___) BLUEBIRD BIO INC ---------------------------------------------- (Name of Issuer) COMMON STOCK ----------------------------------------------- (Title of Class of Securities) 09609G100 --------------------- (CUSIP Number) DECEMBER 31, 2020 --------------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [x] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d)... More

Form 8-K bluebird bio, Inc. For: Feb 16

February 16, 2021 7:10 AM EST


Exhibit... More