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Filing Details

Accession Number:
0001012975-14-000035
Form Type:
4
Zero Holdings:
No
Publication Time:
2014-01-23 17:06:37
Reporting Period:
2014-01-21
Filing Date:
2014-01-23
Accepted Time:
2014-01-23 17:06:37
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1293971 Bluebird Bio Inc. BLUE Biological Products, (No Disgnostic Substances) (2836) 000000000
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1408591 Third Rock Ventures Lp 29 Newbury Street, 3Rd Floor
Boston MA 02116
No No Yes No
1578973 Trv Gp, Llc 29 Newbury Street, 3Rd Floor
Boston MA 02116
No No Yes No
1578976 Third Rock Ventures Gp, L.p. 29 Newbury Street, 3Rd Floor
Boston MA 02116
No No Yes No
Reported Non-Derivative Transactions
Sec. Name Acquisiton - Disposition Date Amount Price Remaning Holdings Equity Swap Involved Form Type Code Nature of Ownership Explanation
Common Stock Disposition 2014-01-21 250,000 $23.91 2,416,974 No 4 S Direct
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 S Direct
Footnotes
  1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.75 to $24.35, inclusive. Each Reporting Person undertakes to provide to bluebird bio Inc., any security holder of bluebird bio Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
  2. The shares are directly held by TRV. The general partner of TRV is Third Rock Ventures GP, L.P. ("TRV GP"). The general partner of TRV GP is TRV GP, LLC ("TRV GP LLC") and, as such, each of TRV GP and TRV GP LLC exercises shared voting and investment power over the shares held of record by TRV. Each of the filing persons disclaims beneficial ownership of the shares except to the extent of their pecuniary interest therein, if any.