News + Filings Transactions Holdings
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BAKER BROS. ADVISORS LP
> BLUE
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 8,224,062,000 | -9,073,966,000 | $3,290.00 |
| 12/31/2022 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 17,298,028,000 | 17,282,205,000 | $6,920.00 |
| 09/30/2022 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 15,823,000 | 5,474,000 | $6.33 |
| 06/30/2022 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 10,349,000 | -1,775,000 | $4.14 |
| 03/31/2022 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 12,124,000 | -12,848,000 | $4.85 |
| 12/31/2021 | bluebird bio, Inc. | BLUE | 2,499,715 | 0 | 24,972,000 | -22,798,000 | $9.99 |
| 09/30/2021 | bluebird bio, Inc. | BLUE | 2,499,715 | 2,272,727 | 47,770,000 | 40,511,000 | $19.11 |
| 06/30/2021 | bluebird bio, Inc. | BLUE | 226,988 | 0 | 7,259,000 | 415,000 | $31.98 |
| 03/31/2021 | bluebird bio, Inc. | BLUE | 226,988 | 0 | 6,844,000 | -2,978,000 | $30.15 |
| 12/31/2020 | bluebird bio, Inc. | BLUE | 226,988 | -25,012 | 9,822,000 | -3,773,000 | $43.27 |
| 09/30/2020 | bluebird bio, Inc. | BLUE | 252,000 | -13,000 | 13,595,000 | -2,581,000 | $53.95 |
| 06/30/2020 | bluebird bio, Inc. | BLUE | 265,000 | 225,000 | 16,176,000 | 14,338,000 | $61.04 |
| 03/31/2020 | bluebird bio, Inc. | BLUE | 40,000 | 0 | 1,838,000 | -1,672,000 | $45.95 |
| 12/31/2019 | bluebird bio, Inc. | BLUE | 40,000 | 0 | 3,510,000 | -163,000 | $87.75 |
| 09/30/2019 | bluebird bio, Inc. | BLUE | 40,000 | 0 | 3,673,000 | -1,415,000 | $91.83 |
| 06/30/2019 | bluebird bio, Inc. | BLUE | 40,000 | 0 | 5,088,000 | -1,205,000 | $127.20 |
| 03/31/2019 | bluebird bio, Inc. | BLUE | 40,000 | 0 | 6,293,000 | 2,325,000 | $157.33 |
| 12/31/2018 | bluebird bio, Inc. | BLUE | 40,000 | -19,441 | 3,968,000 | -4,710,000 | $99.20 |
| 09/30/2018 | bluebird bio, Inc. | BLUE | 59,441 | -140,559 | 8,678,000 | -22,712,000 | $145.99 |
| 06/30/2018 | bluebird bio, Inc. | BLUE | 200,000 | 0 | 31,390,000 | -4,230,000 | $156.95 |
| 12/31/2017 | bluebird bio, Inc. | BLUE | 200,000 | -41,441 | 35,620,000 | 2,458,000 | $178.10 |
| 09/30/2017 | bluebird bio, Inc. | BLUE | 241,441 | -60,000 | 33,162,000 | 1,496,000 | $137.35 |
| 06/30/2017 | bluebird bio, Inc. | BLUE | 301,441 | -50,000 | 31,666,000 | -280,000 | $105.05 |
| 03/31/2017 | bluebird bio, Inc. | BLUE | 351,441 | 0 | 31,946,000 | 10,262,000 | $90.90 |
| 12/31/2016 | bluebird bio, Inc. | BLUE | 351,441 | 57,498 | 21,684,000 | 1,761,000 | $61.70 |
| 09/30/2016 | bluebird bio, Inc. | BLUE | 293,943 | 0 | 19,923,000 | 7,198,000 | $67.78 |
| 06/30/2016 | bluebird bio, Inc. | BLUE | 293,943 | -59,000 | 12,725,000 | -2,275,000 | $43.29 |
| 03/31/2016 | bluebird bio, Inc. | BLUE | 352,943 | 211,838 | 15,000,000 | 5,938,000 | $42.50 |
| 12/31/2015 | bluebird bio, Inc. | BLUE | 141,105 | 141,105 | 9,062,000 | 9,062,000 | $64.22 |
| 09/30/2015 | bluebird bio, Inc. | BLUE | 141,105 | 141,105 | 12,072,000 | 12,072,000 | $85.55 |
| 06/30/2015 | bluebird bio, Inc. | BLUE | 151,105 | 151,105 | 25,442,000 | 25,442,000 | $168.37 |
| 03/31/2015 | bluebird bio, Inc. | BLUE | 146,581 | 146,581 | 17,703,000 | 17,703,000 | $120.77 |
| 12/31/2014 | bluebird bio, Inc. | BLUE | 150,000 | 150,000 | 13,758,000 | 13,758,000 | $91.72 |
| 09/30/2014 | bluebird bio, Inc. | BLUE | 150,000 | 150,000 | 5,382,000 | 5,382,000 | $35.88 |
| 06/30/2014 | bluebird bio, Inc. | BLUE | 198,260 | 198,260 | 7,647,000 | 7,647,000 | $38.57 |
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