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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $380 | -7.5% | 125 | 0.0% | 0.00% | – |
| Q2 2023 | $411 | +3.3% | 125 | 0.0% | 0.00% | – |
| Q1 2023 | $398 | -54.0% | 125 | 0.0% | 0.00% | – |
| Q4 2022 | $865 | -13.5% | 125 | -5.3% | 0.00% | -100.0% |
| Q3 2022 | $1,000 | 0.0% | 132 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $1,000 | 0.0% | 132 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $1,000 | -66.7% | 132 | 0.0% | 0.00% | -50.0% |
| Q3 2021 | $3,000 | -25.0% | 132 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $4,000 | 0.0% | 132 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $4,000 | +300.0% | 132 | +450.0% | 0.00% | +100.0% |
| Q4 2020 | $1,000 | 0.0% | 24 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $1,000 | -75.0% | 24 | -42.9% | 0.00% | -66.7% |
| Q3 2019 | $4,000 | -33.3% | 42 | -10.6% | 0.00% | -25.0% |
| Q2 2019 | $6,000 | -14.3% | 47 | 0.0% | 0.00% | -20.0% |
| Q1 2019 | $7,000 | -30.0% | 47 | -29.9% | 0.01% | 0.0% |
| Q3 2018 | $10,000 | – | 67 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sessa Capital IM, L.P. | 1,834,965 | $35,066,000 | 1.72% |
| Birchview Capital, LP | 84,000 | $1,605,000 | 1.09% |
| ARMISTICE CAPITAL, LLC | 2,472,000 | $47,240,000 | 0.80% |
| EcoR1 Capital, LLC | 802,507 | $15,336,000 | 0.53% |
| Parametrica Management Ltd | 36,919 | $706,000 | 0.53% |
| Bain Capital Life Sciences Investors, LLC | 538,179 | $7,239,000 | 0.45% |
| APPLETON GROUP, LLC | 19,495 | $373,000 | 0.32% |
| MANGROVE PARTNERS IM, LLC | 175,587 | $3,355,000 | 0.30% |
| Quinn Opportunity Partners LLC | 230,100 | $4,397,000 | 0.28% |
| PDT Partners, LLC | 171,700 | $3,281,000 | 0.24% |