BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 236 filers reported holding BLUEBIRD BIO INC in Q2 2021. The put-call ratio across all filers is 1.04 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $6,916,500 | -55.0% | 2,175,000 | +352.8% | 0.15% | -43.6% |
| Q2 2021 | $15,360,000 | +6.1% | 480,300 | 0.0% | 0.27% | -10.2% |
| Q1 2021 | $14,481,000 | +61.4% | 480,300 | +681.8% | 0.30% | -5.3% |
| Q3 2018 | $8,970,000 | -49.4% | 61,435 | -45.6% | 0.32% | -48.5% |
| Q2 2018 | $17,735,000 | +153.3% | 113,000 | +175.6% | 0.62% | +156.4% |
| Q1 2018 | $7,001,000 | -50.9% | 41,000 | -48.8% | 0.24% | -56.7% |
| Q4 2017 | $14,248,000 | +46.4% | 80,000 | -25.3% | 0.56% | +49.6% |
| Q1 2017 | $9,732,000 | -47.8% | 107,064 | -64.6% | 0.38% | -51.1% |
| Q4 2016 | $18,635,000 | +22.7% | 302,027 | +34.8% | 0.77% | +8.6% |
| Q3 2016 | $15,183,000 | +3.7% | 224,000 | -33.7% | 0.71% | +22.8% |
| Q2 2016 | $14,636,000 | -64.6% | 338,085 | -30.0% | 0.58% | -64.0% |
| Q3 2015 | $41,321,000 | -24.9% | 483,000 | +47.8% | 1.60% | -12.8% |
| Q2 2015 | $55,020,000 | -27.8% | 326,783 | -48.2% | 1.83% | -25.8% |
| Q1 2015 | $76,243,000 | -2.3% | 631,309 | -25.8% | 2.47% | -11.9% |
| Q4 2014 | $78,047,000 | +72.8% | 850,932 | -32.4% | 2.80% | +70.4% |
| Q3 2014 | $45,162,000 | +8.9% | 1,258,687 | +17.1% | 1.65% | -1.3% |
| Q2 2014 | $41,473,000 | +340.0% | 1,075,268 | +159.4% | 1.67% | +333.2% |
| Q1 2014 | $9,425,000 | +6.1% | 414,474 | -2.1% | 0.38% | -16.3% |
| Q4 2013 | $8,879,000 | -22.2% | 423,224 | 0.0% | 0.46% | -13.4% |
| Q3 2013 | $11,410,000 | – | 423,224 | – | 0.53% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 5,910,687 | $24,470,000 | 3.71% |
| Monaco Asset Management SAM | 306,142 | $1,267,000 | 0.55% |
| Parametrica Management Ltd | 90,105 | $374,000 | 0.41% |
| Kamunting Street Capital Management, L.P. | 55,200 | $229,000 | 0.31% |
| Birchview Capital, LP | 98,000 | $406,000 | 0.30% |
| Kamunting Street Capital Management, L.P. | 35,000 | $145,000 | 0.20% |
| PDT Partners, LLC | 519,477 | $2,151,000 | 0.19% |
| Graham Capital Management, L.P. | 781,912 | $3,237,000 | 0.13% |
| CAXTON ASSOCIATES LP | 220,154 | $911,000 | 0.09% |
| Baker Brothers Advisors | 2,499,715 | $10,349,000 | 0.06% |