SEC Form 4 · accession 0001209191-18-028124
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
May 2, 2018
Accepted (ET)
May 4, 2018 · 4:39 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 | May 2, 2018 | M | 13,000 | $24.47 | A | 37,905 | D | |
| Common StockF2 | May 2, 2018 | S | 1,100 | $173.2455 | D | 36,805 | D | |
| Common StockF3 | May 2, 2018 | S | 1,000 | $174.405 | D | 35,805 | D | |
| Common StockF4 | May 2, 2018 | S | 1,703 | $175.6065 | D | 34,102 | D | |
| Common StockF5 | May 2, 2018 | S | 1,000 | $176.5456 | D | 33,102 | D | |
| Common StockF6 | May 2, 2018 | S | 3,299 | $177.8962 | D | 29,803 | D | |
| Common StockF7 | May 2, 2018 | S | 1,200 | $178.9958 | D | 28,603 | D | |
| Common StockF8 | May 2, 2018 | S | 698 | $179.5644 | D | 27,905 | D | |
| Common StockF9 | May 2, 2018 | S | 3,000 | $180.0358 | D | 24,905 | 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)F10 | $24.47 | May 2, 2018 | M | 13,000 | D | — | Mar 3, 2024 | Common Stock | 13,000 | 27,000 | 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 December 13, 2017.
- F10This option vests over a four-year period, at a rate of twenty-five percent (25%) on January 1, 2015 and in 36 equal monthly installments thereafter.
- F2The range in prices for the transaction reported on this line was $172.95 to $173.85. The average weighted price was $173.2455. 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 $173.95 to $174.90. The average weighted price was $174.4050. 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 $175.20 to $175.95. The average weighted price was $175.6065. 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.
- F5The range in prices for the transaction reported on this line was $176.25 to $176.95. The average weighted price was $176.5456. 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.
- F6The range in prices for the transaction reported on this line was $177.45 to $178.40. The average weighted price was $177.8962. 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.
- F7The range in prices for the transaction reported on this line was $178.45 to $179.35. The average weighted price was $178.9958. 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.
- F8The range in prices for the transaction reported on this line was $179.45 to $179.70. The average weighted price was $179.5644. 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.
- F9The range in prices for the transaction reported on this line was $180.00 to $180.15. The average weighted price was $180.0358. 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.