David Davidson serves as Executive at bluebird bio, Inc., where they oversee executive responsibilities. Since joining the company, David Davidson has executed 297 insider transactions totaling $38.9M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 2, 2015 involved selling 1,099 shares valued at $106.5K.
David Davidson currently holds 47,787 shares of bluebird bio, Inc. (BLUE), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David Davidson has been a net seller of BLUE stock. They have purchased $0 and sold $38.9M worth of shares.
David Davidson's most recent insider trade was on Feb 2, 2015, when they sold 1,099 shares at $96.95 per share.
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| $95.76 |
| Discretionary |
| Feb 2, 2015 | BLUE | $175.7K | Sale | 1,858 | $94.54 | Discretionary |
| Feb 2, 2015 | BLUE | $15.6K | Sale | 159 | $98.40 | Discretionary |
| Feb 2, 2015 | BLUE | $8.4K | Option Exercise | 4,000 | $2.09 | Discretionary |
| Jan 2, 2015 | BLUE | $43.2K | Sale | 486 | $88.90 | Discretionary |
| Jan 2, 2015 | BLUE | $109.3K | Sale | 1,239 | $88.24 | Discretionary |
| Jan 2, 2015 | BLUE | $82.8K | Sale | 918 | $90.18 | Discretionary |
| Jan 2, 2015 | BLUE | $24.5K | Sale | 269 | $91.16 | Discretionary |
| Jan 2, 2015 | BLUE | $91.8K | Sale | 998 | $92.01 | Discretionary |
| Jan 2, 2015 | BLUE | $8.4K | Sale | 90 | $92.96 | Discretionary |
| Jan 2, 2015 | BLUE | $8.4K | Option Exercise | 4,000 | $2.09 | Discretionary |
| Dec 8, 2014 | BLUE | $28.8K | Option Exercise | 13,788 | $2.09 | Discretionary |
| Dec 8, 2014 | BLUE | $219.1K | Sale | 4,692 | $46.69 | Discretionary |
| Dec 8, 2014 | BLUE | $406.3K | Sale | 8,851 | $45.91 | Discretionary |
| Dec 8, 2014 | BLUE | $11.6K | Sale | 245 | $47.34 | Discretionary |
| Dec 5, 2014 | BLUE | $54.5K | Sale | 1,212 | $45.00 | Discretionary |
| Dec 5, 2014 | BLUE | $2.5K | Option Exercise | 1,212 | $2.09 | Discretionary |
| Dec 3, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |
| Dec 3, 2014 | BLUE | $118.1K | Sale | 2,836 | $41.63 | Discretionary |
| Dec 3, 2014 | BLUE | $6.9K | Sale | 164 | $42.01 | Discretionary |
| Nov 3, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |
| Nov 3, 2014 | BLUE | $125.0K | Sale | 3,000 | $41.68 | Discretionary |
| Oct 1, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |
| Oct 1, 2014 | BLUE | $103.7K | Sale | 3,000 | $34.55 | Discretionary |
| Sep 2, 2014 | BLUE | $114.0K | Sale | 3,000 | $38.00 | Discretionary |
| Sep 2, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |
| Aug 1, 2014 | BLUE | $100.9K | Sale | 3,000 | $33.62 | Discretionary |
| Aug 1, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |
| Jul 1, 2014 | BLUE | $6.3K | Option Exercise | 3,000 | $2.09 | Discretionary |