SEC Form 4 · accession 0001209191-17-051590
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 1, 2017
Accepted (ET)
Sep 6, 2017 · 4:06 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 1, 2017 | M | 12,000 | $5.5004 | A | 27,977 | D | |
| Common StockF2 | Sep 1, 2017 | S | 2,300 | $126.162 | D | 25,677 | D | |
| Common Stock | Sep 1, 2017 | S | 700 | $126.60 | D | 24,977 | D | |
| Common StockF3 | Sep 1, 2017 | S | 9,000 | $130.0124 | D | 15,977 | 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 | $5.5004 | Sep 1, 2017 | M | 12,000 | D | — | Jan 16, 2023 | Common Stock | 12,000 | 91,151 | 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 December 12, 2016.
- F2The range of prices for the transaction reported on this line was $125.60 to $126.45. The average weighted price was $126.1620. 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 $130.00 to $130.20. The average weighted price was $130.0124. 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 May 1, 2014 and in 36 equal monthly installments thereafter.