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Livermore
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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.

Holders of 5% or more of BLUE

Holders whose latest Schedule 13D or 13G filing reports 5% or more of bluebird bio, Inc., largest stake first. The change is against the holder's previous filing.

No holder currently reports owning 5% or more of bluebird bio, Inc. on Schedule 13D or 13G.

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

47 Schedule 13D and 13G filings on bluebird bio, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on BLUE
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 14, 2024Granahan Investment Management Inc13G/AOld format–––SEC
Nov 14, 2024Alyeska Investment Group, L.P.13G/AOld format–––SEC
Nov 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Nov 12, 20245:02 PM ETGoldman Sachs Group Inc13G/AOld format–––SEC
Nov 12, 2024Vanguard Group Inc13G/AOld format–––SEC
Nov 8, 2024BlackRock, Inc.13GOld format–––SEC
Nov 4, 2024Vanguard Group Inc13G/AOld format–––SEC
Nov 4, 2024Vanguard Group Inc13G/AOld format–––SEC
Oct 22, 2024BlackRock, Inc.13GOld format–New–SEC
Apr 10, 2024State Street Corp13G/AOld format–––SEC
Feb 14, 2024Granahan Investment Management Inc13GOld format–New–SEC
Feb 14, 2024Tang Capital Partners LP13G/AOld format–––SEC
Feb 14, 2024Alyeska Investment Group, L.P.13GOld format–New–SEC
Feb 14, 2024PFM Health Sciences, LP13G/AOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 6, 20244:49 PM ETGoldman Sachs Group Inc13GOld format–New–SEC
Jan 25, 2024State Street Corp13G/AOld format–––SEC
Jan 8, 20244:35 PM ETBlackRock Inc.13G/AOld format–––SEC
Apr 21, 2023PFM Health Sciences, LP13GOld format–New–SEC
Mar 10, 2023State Street Corp13G/AOld format–––SEC
Feb 14, 2023Tang Capital Partners LP13G/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13GOld format–––SEC
Feb 9, 2023State Street Corp13G/AOld format–––SEC
Feb 3, 2023First Trust Portfolios LP13G/AOld format–––SEC
Jan 25, 202310:36 AM ETBlackRock Inc.13G/AOld format–––SEC
Jan 12, 2023Millennium Management LLC13G/AOld format–––SEC
Oct 11, 2022State Street Corp13G/AOld format–––SEC
Sep 9, 2022Wellington Management Group LLP13G/AOld format–––SEC
Aug 1, 2022Millennium Management LLC13GOld format–New–SEC
Jul 11, 2022Vanguard Group Inc13G/AOld format–––SEC
Jul 11, 2022State Street Corp13G/AOld format–––SEC
Jun 3, 2022Tang Capital Partners LP13GOld format–New–SEC
Apr 11, 2022State Street Corp13G/AOld format–––SEC
Feb 9, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 4, 2022Wellington Management Group LLP13G/AOld format–––SEC
Feb 2, 20227:11 PM ETBlackRock Inc.13G/AOld format–––SEC
Jan 26, 2022First Trust Portfolios LP13GOld format–New–SEC
Jan 10, 2022State Street Corp13GOld format–New–SEC
Apr 12, 2021Vanguard Group Inc13G/AOld format–––SEC
Mar 10, 2021Capital Research Global Investors13G/AOld format–––SEC
Mar 10, 2021Wellington Management Group LLP13G/AOld format–––SEC
Feb 16, 2021Capital World Investors13G/AOld format–––SEC
Feb 16, 2021Capital Research Global Investors13G/AOld format–––SEC
Feb 16, 2021Sands Capital Management, LLC13GOld format–New–SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Jan 28, 20215:55 PM ETBlackRock Inc.13G/AOld format–––SEC
Jan 11, 2021Wellington Management Group LLP13G/AOld format–––SEC

Form 144: proposed insider sales

13 notices from officers, directors and other affiliates planning to sell bluebird bio, Inc. shares, newest first.

Form 144 notices for BLUE
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Mar 3, 20255:51 PM ETObenshain AndrewOfficer · Director921$3.60KMar 3, 202510b5-1Morgan StanleySEC
Mar 3, 20255:38 PM ETKlima Thomas JOfficer500$1.96KMar 3, 202510b5-1Morgan StanleySEC
Mar 3, 20255:22 PM ETColvin Richard AOfficer584$2.29KMar 3, 202510b5-1Morgan StanleySEC
Feb 3, 20254:38 PM ETObenshain AndrewOfficer · Director86$665.35Feb 3, 202510b5-1Morgan StanleySEC
Feb 3, 20254:29 PM ETKlima Thomas JOfficer122$943.87Feb 3, 202510b5-1Morgan StanleySEC
Feb 3, 20254:21 PM ETColvin Richard AOfficer64$495.15Feb 3, 202510b5-1Morgan StanleySEC
Feb 3, 20254:10 PM ETVittiglio JosephOfficer238$1.84KFeb 3, 202510b5-1Morgan StanleySEC
Jan 7, 20255:31 PM ETColvin Richard AOfficer19$166Jan 6, 202510b5-1Morgan StanleySEC
Jan 6, 20256:23 PM ETObenshain AndrewOfficer · Director140$1.22KJan 6, 202510b5-1Morgan StanleySEC
Dec 10, 20249:51 PM ETColvin Richard AOfficer2.82K$1.27KDec 10, 202410b5-1Morgan StanleySEC
Dec 10, 20249:39 PM ETObenshain AndrewOfficer · Director971$436.95Dec 10, 202410b5-1Morgan StanleySEC
Oct 1, 20243:10 PM ETObenshain AndrewOfficer · Director34.8K$18.1KSep 30, 202410b5-1Morgan StanleySEC
Oct 1, 20241:33 PM ETKlima Thomas JOfficer1.01K$523.12Sep 30, 202410b5-1Morgan StanleySEC