SEC Form 4 · accession 0001209191-17-052804
bluebird bio, Inc. · BLUE
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Mark Vachon
Director
Period of report
Sep 12, 2017
Accepted (ET)
Sep 14, 2017 · 4:09 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 12, 2017 | M | 6,000 | $30.47 | A | 8,000 | D | |
| Common StockF2 | Sep 12, 2017 | S | 1,270 | $126.1469 | D | 6,730 | D | |
| Common StockF3 | Sep 12, 2017 | S | 4,730 | $127.0013 | D | 2,000 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock OptionF4 | $30.47 | Sep 12, 2017 | M | 6,000 | D | — | Jul 16, 2024 | Common Stock | 6,000 | 14,000 | D |
Explanation of responses
- F1the sales reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 8, 2017.
- F2The range in prices for the transaction reported on this line was $125.65 to $126.60. The average weighted price was $126.1469. 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 $126.65 to $127.35. The average weighted price was $127.0013. 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.
- F4This option vests ratably over three years in annual installments, commencing on July 16, 2014.