SEC Form 4 · accession 0001209191-15-071108
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
Sep 15, 2015
Accepted (ET)
Sep 17, 2015 · 4:04 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 | Sep 15, 2015 | M | 2,000 | $2.09 | A | 2,000 | D | |
| Common StockF2 | Sep 15, 2015 | S | 1,279 | $129.3558 | D | 721 | D | |
| Common StockF3 | Sep 15, 2015 | S | 270 | $130.1079 | D | 451 | D | |
| Common StockF4 | Sep 15, 2015 | S | 273 | $131.3514 | D | 178 | D | |
| Common StockF5 | Sep 15, 2015 | S | 178 | $132.1787 | 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)F6 | $2.09 | Sep 15, 2015 | M | 2,000 | D | — | Apr 13, 2022 | Common Stock | 2,000 | 43,239 | 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 $128.70 to $129.69. The average weighted price was $129.3558. 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 $129.79 to $130.7050. The average weighted price was $130.1079. 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.
- F4The range of prices for the transaction reported on this line was $130.86 to $131.84. The average weighted price was $131.3514. 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.
- F5The range of prices for the transaction reported on this line was $131.89 to $132.57. The average weighted price was $132.1787. 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.
- F6This 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.