BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $12 | -7.7% | 3,860 | 0.0% | 0.00% | – |
| Q2 2023 | $13 | +8.3% | 3,860 | 0.0% | 0.00% | – |
| Q1 2023 | $12 | -55.6% | 3,860 | 0.0% | 0.00% | – |
| Q4 2022 | $27 | -99.9% | 3,860 | -5.3% | 0.00% | – |
| Q1 2022 | $20,000 | -47.4% | 4,078 | +6.7% | 0.00% | – |
| Q4 2021 | $38,000 | -44.9% | 3,821 | +6.5% | 0.00% | – |
| Q3 2021 | $69,000 | -40.0% | 3,587 | 0.0% | 0.00% | – |
| Q2 2021 | $115,000 | -12.9% | 3,587 | -18.8% | 0.00% | – |
| Q1 2021 | $132,000 | -30.9% | 4,419 | 0.0% | 0.00% | – |
| Q4 2020 | $191,000 | -19.7% | 4,419 | 0.0% | 0.00% | -100.0% |
| Q3 2020 | $238,000 | -11.2% | 4,419 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $268,000 | +48.9% | 4,419 | +13.9% | 0.00% | – |
| Q1 2020 | $180,000 | -46.7% | 3,880 | 0.0% | 0.00% | -100.0% |
| Q4 2019 | $338,000 | +2.1% | 3,880 | +7.6% | 0.00% | 0.0% |
| Q3 2019 | $331,000 | -61.9% | 3,605 | -47.3% | 0.00% | -50.0% |
| Q2 2019 | $869,000 | -26.9% | 6,839 | -9.8% | 0.00% | -33.3% |
| Q1 2019 | $1,189,000 | +89.6% | 7,579 | +15.8% | 0.00% | +50.0% |
| Q4 2018 | $627,000 | -22.4% | 6,547 | +18.4% | 0.00% | 0.0% |
| Q3 2018 | $808,000 | -6.9% | 5,531 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $868,000 | -8.2% | 5,531 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $946,000 | -3.8% | 5,531 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $983,000 | +26.3% | 5,531 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $778,000 | +64.5% | 5,531 | +22.7% | 0.00% | +100.0% |
| Q2 2017 | $473,000 | +15.6% | 4,509 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $409,000 | +87.6% | 4,509 | +28.5% | 0.00% | 0.0% |
| Q4 2016 | $218,000 | -66.5% | 3,509 | -63.5% | 0.00% | 0.0% |
| Q3 2016 | $650,000 | +357.7% | 9,618 | +192.8% | 0.00% | – |
| Q2 2016 | $142,000 | +2.2% | 3,285 | 0.0% | 0.00% | -100.0% |
| Q1 2016 | $139,000 | -34.1% | 3,285 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $211,000 | -25.2% | 3,285 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $282,000 | -35.5% | 3,285 | +26.3% | 0.00% | -50.0% |
| Q2 2015 | $437,000 | +39.6% | 2,600 | 0.0% | 0.00% | +100.0% |
| Q1 2015 | $313,000 | +31.5% | 2,600 | 0.0% | 0.00% | 0.0% |
| Q4 2014 | $238,000 | +153.2% | 2,600 | 0.0% | 0.00% | – |
| Q3 2014 | $94,000 | – | 2,600 | – | 0.00% | – |
Download | ||||||
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% |