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 | $357,656 | -15.8% | 117,650 | -8.9% | 0.00% | 0.0% |
| Q2 2023 | $424,953 | +3.8% | 129,165 | +0.3% | 0.00% | 0.0% |
| Q1 2023 | $409,387 | -40.9% | 128,738 | +28.6% | 0.00% | 0.0% |
| Q4 2022 | $692,858 | +259.0% | 100,124 | +228.4% | 0.00% | – |
| Q3 2022 | $193,000 | +52.0% | 30,485 | -0.4% | 0.00% | – |
| Q2 2022 | $127,000 | -70.4% | 30,596 | -65.4% | 0.00% | -100.0% |
| Q1 2022 | $429,000 | -54.3% | 88,519 | -5.7% | 0.00% | 0.0% |
| Q4 2021 | $938,000 | -46.4% | 93,886 | +2.5% | 0.00% | -50.0% |
| Q3 2021 | $1,751,000 | -41.2% | 91,629 | -1.6% | 0.00% | -50.0% |
| Q2 2021 | $2,977,000 | -15.2% | 93,086 | -20.1% | 0.00% | -20.0% |
| Q1 2021 | $3,511,000 | -30.7% | 116,453 | -0.5% | 0.01% | -28.6% |
| Q4 2020 | $5,065,000 | -18.2% | 117,067 | +1.9% | 0.01% | -30.0% |
| Q3 2020 | $6,195,000 | -7.8% | 114,832 | +4.3% | 0.01% | -16.7% |
| Q2 2020 | $6,720,000 | +59.4% | 110,099 | +20.0% | 0.01% | +33.3% |
| Q1 2020 | $4,216,000 | -43.6% | 91,733 | +7.6% | 0.01% | -30.8% |
| Q4 2019 | $7,481,000 | -7.2% | 85,258 | -2.9% | 0.01% | -18.8% |
| Q3 2019 | $8,061,000 | -27.6% | 87,794 | +0.3% | 0.02% | -27.3% |
| Q2 2019 | $11,137,000 | -17.4% | 87,556 | +2.2% | 0.02% | -21.4% |
| Q1 2019 | $13,477,000 | +58.1% | 85,662 | -0.3% | 0.03% | +47.4% |
| Q4 2018 | $8,524,000 | -31.2% | 85,930 | +1.3% | 0.02% | -20.8% |
| Q3 2018 | $12,390,000 | +0.5% | 84,865 | +8.0% | 0.02% | -7.7% |
| Q2 2018 | $12,329,000 | -3.2% | 78,552 | +5.3% | 0.03% | -3.7% |
| Q1 2018 | $12,734,000 | -7.5% | 74,575 | -3.5% | 0.03% | -3.6% |
| Q4 2017 | $13,762,000 | +37.0% | 77,269 | +5.6% | 0.03% | +27.3% |
| Q3 2017 | $10,047,000 | +20.2% | 73,150 | -8.0% | 0.02% | +22.2% |
| Q2 2017 | $8,356,000 | +14.5% | 79,540 | -0.9% | 0.02% | +20.0% |
| Q1 2017 | $7,298,000 | +41.0% | 80,287 | -4.3% | 0.02% | +36.4% |
| Q4 2016 | $5,176,000 | -2.7% | 83,887 | +6.9% | 0.01% | 0.0% |
| Q3 2016 | $5,320,000 | +58.2% | 78,487 | +1.0% | 0.01% | +57.1% |
| Q2 2016 | $3,363,000 | +4.1% | 77,687 | +2.2% | 0.01% | 0.0% |
| Q1 2016 | $3,230,000 | -24.1% | 76,005 | +14.7% | 0.01% | -30.0% |
| Q4 2015 | $4,256,000 | -23.8% | 66,266 | +1.5% | 0.01% | -33.3% |
| Q3 2015 | $5,583,000 | -44.7% | 65,258 | +8.8% | 0.02% | -37.5% |
| Q2 2015 | $10,095,000 | +84.7% | 59,958 | +32.4% | 0.02% | +84.6% |
| Q1 2015 | $5,467,000 | +46.9% | 45,272 | +11.6% | 0.01% | +44.4% |
| Q4 2014 | $3,721,000 | +158.0% | 40,572 | +0.9% | 0.01% | +125.0% |
| Q3 2014 | $1,442,000 | +7.5% | 40,200 | +15.5% | 0.00% | +33.3% |
| Q2 2014 | $1,342,000 | +375.9% | 34,800 | +180.6% | 0.00% | +200.0% |
| Q1 2014 | $282,000 | +8.5% | 12,400 | 0.0% | 0.00% | 0.0% |
| Q4 2013 | $260,000 | -1.5% | 12,400 | +26.5% | 0.00% | 0.0% |
| Q3 2013 | $264,000 | – | 9,800 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Monashee Investment Management LLC | 125,000 | $13,131,000 | 5.55% |
| Cormorant Asset Management, LP | 275,000 | $28,889,000 | 4.79% |
| Eventide Asset Management | 569,700 | $59,847,000 | 3.73% |
| Crosspoint Capital Strategies, LLC | 28,937 | $3,040,000 | 2.66% |
| Casdin Capital, LLC | 65,000 | $6,828,000 | 2.53% |
| ARK Investment Management | 119,683 | $12,573,000 | 2.45% |
| RTW INVESTMENTS, LP | 104,383 | $10,965,000 | 2.31% |
| Taylor Wealth Management Partners | 38,368 | $4,031,000 | 1.82% |
| First Light Asset Management, LLC | 33,780 | $3,549,000 | 1.19% |
| Atika Capital Management LLC | 25,000 | $2,627,000 | 0.92% |