SEC Form 4 · accession 0001012975-15-000094
bluebird bio, Inc. · BLUE
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
THIRD ROCK VENTURES LP
10% Owner
TRV GP, LLC
10% Owner
Third Rock Ventures GP, L.P.
10% Owner
Period of report
Feb 3, 2015
Accepted (ET)
Feb 4, 2015 · 4:31 pm EST
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001293971
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF2 | Feb 3, 2015 | J | 1,215,054 | $0.00 | D | 0 | D | |
| Common StockF4 | Feb 3, 2015 | J | 300,863 | $0.00 | A | 300,863 | D | |
| Common StockF4 | Feb 3, 2015 | J | 300,863 | $0.00 | D | 0 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Distribution of shares in kind by Third Rock Ventures, L.P. ("TRV") on a pro rata basis to its partners.
- F2The 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 Reporting Persons disclaims beneficial ownership of the shares except to the extent of their pecuniary interest therein, if any.
- F3TRV GP received shares distributed in kind by TRV on a pro rata basis to its partners.
- F4The shares are directly held by TRV GP. As such, TRV GP LLC exercises voting and investment power over the shares held of record by TRV GP. Each of the filing persons disclaims beneficial ownership of the shares except to the extent of their pecuniary interest therein, if any.
- F5Distribution of shares in kind by TRV GP on a pro rata basis to its partners.