| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BLUE | bluebird bio, Inc. | Mandell James | Director | Sep 10, 2018 | Sale | $150.77 | 1,000 | 150,771 | 1,568 | Sep 12, 2018, 12:00 AM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Aug 14, 2017 | Sale | $95.95 | 1,000 | 95,950 | 1,000 | Aug 15, 2017, 04:05 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Feb 15, 2017 | Sale | $80.22 | 1,050 | 84,235 | 1,000 | Feb 17, 2017, 08:41 AM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Feb 15, 2017 | Option Exercise | $25.16 | 1,050 | 26,418 | 2,050 | Feb 17, 2017, 08:41 AM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Feb 14, 2017 | Option Exercise | $22.65 | 5,950 | 134,782 | 6,950 | Feb 16, 2017, 08:17 AM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Feb 14, 2017 | Sale | $80.01 | 5,950 | 476,076 | 1,000 | Feb 16, 2017, 08:17 AM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Jan 31, 2017 | Option Exercise | $21.43 | 8,000 | 171,440 | 9,000 | Feb 02, 2017, 04:03 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Jan 31, 2017 | Sale | $75.04 | 8,000 | 600,322 | 1,000 | Feb 02, 2017, 04:03 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Jan 27, 2017 | Option Exercise | $21.43 | 5,000 | 107,150 | 6,000 | Jan 31, 2017, 04:29 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Jan 27, 2017 | Sale | $70.10 | 5,000 | 350,499 | 1,000 | Jan 31, 2017, 04:29 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Sep 01, 2015 | Option Exercise | $21.43 | 1,500 | 32,145 | 1,500 | Sep 03, 2015, 04:01 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Sep 01, 2015 | Sale | $125.96 | 1,500 | 188,938 | 858 | Sep 03, 2015, 04:01 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Aug 10, 2015 | Option Exercise | $21.43 | 1,500 | 32,145 | 1,500 | Aug 12, 2015, 04:02 PM | |
| BLUE | bluebird bio, Inc. | Mandell James | Director | Aug 10, 2015 | Sale | $148.44 | 1,500 | 222,662 | 874 | Aug 12, 2015, 04:02 PM |
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