BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 255 filers reported holding BLUEBIRD BIO INC in Q4 2018. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,020,755 | -22.8% | 664,722 | -16.5% | 0.01% | -12.5% |
| Q2 2023 | $2,618,685 | +411.7% | 795,953 | +394.6% | 0.01% | +300.0% |
| Q1 2023 | $511,732 | -48.7% | 160,922 | +2.2% | 0.00% | 0.0% |
| Q3 2022 | $997,000 | +312.0% | 157,508 | +169.0% | 0.00% | – |
| Q2 2022 | $242,000 | +45.8% | 58,545 | +70.6% | 0.00% | – |
| Q1 2022 | $166,000 | -89.3% | 34,318 | -77.9% | 0.00% | -100.0% |
| Q4 2021 | $1,550,000 | -51.2% | 155,124 | -6.7% | 0.00% | -66.7% |
| Q3 2021 | $3,177,000 | -36.1% | 166,271 | +7.0% | 0.00% | -50.0% |
| Q2 2021 | $4,971,000 | -11.7% | 155,436 | -16.8% | 0.01% | -25.0% |
| Q1 2021 | $5,631,000 | +61.5% | 186,750 | +131.8% | 0.01% | +33.3% |
| Q4 2020 | $3,486,000 | +200.8% | 80,554 | +275.0% | 0.01% | +50.0% |
| Q3 2020 | $1,159,000 | -35.9% | 21,482 | -27.5% | 0.00% | -50.0% |
| Q2 2020 | $1,808,000 | -44.7% | 29,627 | -58.3% | 0.01% | -69.2% |
| Q1 2020 | $3,267,000 | +76.3% | 71,079 | +236.7% | 0.03% | +100.0% |
| Q4 2019 | $1,853,000 | -10.5% | 21,112 | -6.4% | 0.01% | -23.5% |
| Q3 2019 | $2,071,000 | -51.1% | 22,551 | -32.3% | 0.02% | -55.3% |
| Q2 2019 | $4,238,000 | +429.8% | 33,321 | +555.0% | 0.04% | +322.2% |
| Q1 2019 | $800,000 | -75.0% | 5,087 | -84.3% | 0.01% | -67.9% |
| Q4 2018 | $3,206,000 | -56.0% | 32,315 | -35.2% | 0.03% | -51.7% |
| Q3 2018 | $7,281,000 | -15.5% | 49,868 | -9.2% | 0.06% | -21.6% |
| Q2 2018 | $8,621,000 | +43.7% | 54,929 | +56.4% | 0.07% | +23.3% |
| Q1 2018 | $5,998,000 | +660.2% | 35,128 | +304.7% | 0.06% | +566.7% |
| Q1 2017 | $789,000 | +61.0% | 8,680 | +9.3% | 0.01% | +80.0% |
| Q4 2016 | $490,000 | -53.8% | 7,941 | -49.3% | 0.01% | -58.3% |
| Q3 2016 | $1,061,000 | -8.2% | 15,651 | -41.4% | 0.01% | -14.3% |
| Q2 2016 | $1,156,000 | -47.8% | 26,695 | -48.8% | 0.01% | -54.8% |
| Q1 2016 | $2,216,000 | -14.3% | 52,140 | +29.5% | 0.03% | 0.0% |
| Q4 2015 | $2,585,000 | +45.1% | 40,250 | +93.3% | 0.03% | +24.0% |
| Q3 2015 | $1,781,000 | +1020.1% | 20,824 | +2101.3% | 0.02% | +1150.0% |
| Q2 2015 | $159,000 | -80.8% | 946 | -86.2% | 0.00% | -84.6% |
| Q1 2015 | $827,000 | -32.2% | 6,844 | -48.5% | 0.01% | -27.8% |
| Q4 2014 | $1,219,000 | +2116.4% | 13,293 | +770.0% | 0.02% | +1700.0% |
| Q3 2014 | $55,000 | +7.8% | 1,528 | -32.0% | 0.00% | 0.0% |
| Q1 2014 | $51,000 | – | 2,247 | – | 0.00% | – |
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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% |