SEC Form 4 · accession 0001209191-17-063880
bluebird bio, Inc. · BLUE
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Philip D Gregory
Officer — Chief Scientific Officer
Period of report
Dec 1, 2017
Accepted (ET)
Dec 5, 2017 · 4:08 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 Stock | Dec 1, 2017 | M | 1,250 | $50.51 | A | 28,734 | D | |
| Common StockF2 | Dec 1, 2017 | S | 950 | $171.8147 | D | 27,784 | D | |
| Common StockF3 | Dec 1, 2017 | S | 900 | $172.8411 | D | 26,884 | D | |
| Common StockF4 | Dec 1, 2017 | S | 400 | $173.575 | D | 26,484 | 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)F5 | $50.51 | Dec 1, 2017 | M | 1,250 | D | — | Mar 1, 2026 | Common Stock | 1,250 | 22,000 | 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 March 17, 2017.
- F2The range in prices for the transaction reported on this line was $171.30 to $172.20. The average weighted price was $171.8147. 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 $172.35 to $173.30. The average weighted price was $172.8411. 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 range in prices for the transaction reported on this line was $173.3500 to $173.7750. The average weighted price was $173.5750. 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.
- F5This option vests over a four-year period, at a rate of twenty-five percent (25%) on January 4, 2017 and in 36 equal monthly installments thereafter.