Check
the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):
i☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
i☐
Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
i☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
i☐
Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
iCommon
Stock, $0.01 par value per share
iBLUE
iThe NASDAQ Stock Market LLC
Indicate by check mark whether the registrant is an emerging
growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company i☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to
Section 13(a) of the Exchange Act. ☐
Item 8.01Other Events.
On April 20, 2021, bluebird bio, Inc. (the "Company") issued a press release announcing business and program updates across its severe genetic
disease portfolio including a revised diagnosis of transfusion-dependent anemia for a case that was initially reported as myelodysplastic syndrome (MDS) in the HGB-206 study of LentiGlobin for sickle cell disease (bb1111), removal of Zynteglo (betibeglogene autotemcel, beti-cel) for β-thalassemia from the German market due to the outcome of reimbursement negotiations in Germany, and a reduction in workforce intended to enable the Company to advance its late-stage gene therapy programs.
Cover Page Interactive Data File (embedded within the Inline XBRL document)
SIGNATURES
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.