SEC Form 4 · accession 0001209191-18-002902
bluebird bio, Inc. · BLUE
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
David Davidson
Officer — Chief Medical Officer
Period of report
Jan 5, 2018
Accepted (ET)
Jan 9, 2018 · 4:05 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 | Jan 5, 2018 | S | 2,018 | $173.2563 | D | 13,959 | D | |
| Common StockF1,F3 | Jan 5, 2018 | S | 304 | $174.1694 | D | 13,655 | D | |
| Common Stock | Jan 8, 2018 | M | 1,200 | $5.5004 | A | 14,855 | D | |
| Common StockF5 | Jan 8, 2018 | S | 200 | $171.4158 | D | 14,655 | D | |
| Common Stock | Jan 8, 2018 | S | 1,000 | $174.60 | D | 13,655 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F6 | $5.5004 | Jan 8, 2018 | M | 1,200 | D | — | Jan 16, 2023 | Common Stock | 1,200 | 71,951 | D |
Explanation of responses
- F1Shares were sold to cover tax withholding obligations incurred in connection with the vesting of Restricted Stock Units.
- F2The range in prices for the transaction reported on this line was $172.85 to $173.80. The average weighted price was $173.2563. The reporting person will provide, upon request by the SEC, the issuer or security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F3The range in prices for the transaction reported on this line was $173.85 to $174.35. The average weighted price was $174.1694. The reporting person will provide, upon request by the SEC, the issuer or security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F4The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2016.
- F5The range in prices for the transaction reported on this line was $171.40 to $171.55. The average weighted price was $171.4158. The reporting person will provide, upon request by the SEC, the issuer or security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F6This option to purchase shares of our common stock granted on January 16, 2013 with performance-based vesting criteria that were met as of May 1, 2013. The shares underlying these options vested as follows: 25% vested on May 1, 2014, with the remainder of the shares vesting in equal monthly installments over the following three years.