SEC Form 4 · accession 0001209191-15-054149
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
Jun 15, 2015
Accepted (ET)
Jun 17, 2015 · 4:08 pm EDT
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 Stock | Jun 15, 2015 | M | 2,000 | $2.09 | A | 2,000 | D | |
| Common StockF2 | Jun 15, 2015 | S | 644 | $182.4531 | D | 1,356 | D | |
| Common StockF3 | Jun 15, 2015 | S | 1,169 | $183.5388 | D | 187 | D | |
| Common Stock | Jun 15, 2015 | S | 71 | $184.1567 | D | 116 | D | |
| Common Stock | Jun 15, 2015 | S | 95 | $185.565 | D | 21 | D | |
| Common Stock | Jun 15, 2015 | S | 21 | $186.2934 | D | 0 | 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)F4 | $2.09 | Jun 15, 2015 | M | 2,000 | D | — | Apr 13, 2022 | Common Stock | 2,000 | 49,239 | D |
Explanation of responses
- F1The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on January 14, 2015.
- F2The range of prices for the transaction reported on this line was $182.3674 to $182.5089. The average weighted price was $182.4531. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F3The range of prices for the transaction reported on this line was $183.2039 to $183.9779. The average weighted price was $183.5388. The reporting person will provide, upon request by the SEC, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
- F4This option vests over a four-year period, at a rate of twenty-five percent (25%) on February 13, 2013 and in 36 equal monthly installments thereafter.