SEC Form 4 · accession 0001209191-17-063885
bluebird bio, Inc. · BLUE
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Susanna Gatti High
Officer — Chief Operating Officer
Period of report
Dec 1, 2017
Accepted (ET)
Dec 5, 2017 · 4:09 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 StockF1,F2 | Dec 1, 2017 | S | 1,282 | $172.15 | D | 13,718 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Restricted stock units for common stock vest over a four-year period at a rate of 25% on 11/30/2017, 25% on 11/30/2018, 25% on 11/30/2019, and 25% on 11/30/2020.
- F2Shares were sold to cover tax withholding obligations incurred in connection with the vesting of Restricted Stock Units.