BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 177 filers reported holding BLUEBIRD BIO INC in Q4 2021. The put-call ratio across all filers is 1.00 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $21 | -4.5% | 7,258 | +4.7% | 0.00% | – |
| Q2 2023 | $22 | +10.0% | 6,929 | +3.4% | 0.00% | – |
| Q1 2023 | $20 | +5.3% | 6,699 | +135.3% | 0.00% | – |
| Q4 2022 | $19 | -99.9% | 2,847 | -21.9% | 0.00% | – |
| Q3 2022 | $22,000 | +57.1% | 3,644 | +0.9% | 0.00% | – |
| Q2 2022 | $14,000 | -12.5% | 3,613 | +3.9% | 0.00% | – |
| Q1 2022 | $16,000 | -82.4% | 3,476 | -62.2% | 0.00% | – |
| Q4 2021 | $91,000 | +133.3% | 9,203 | +345.0% | 0.00% | – |
| Q3 2021 | $39,000 | -59.8% | 2,068 | -32.8% | 0.00% | – |
| Q2 2021 | $97,000 | +9600.0% | 3,076 | +4861.3% | 0.00% | – |
| Q1 2021 | $1,000 | -50.0% | 62 | 0.0% | 0.00% | – |
| Q4 2020 | $2,000 | -60.0% | 62 | -43.6% | 0.00% | – |
| Q3 2020 | $5,000 | -93.9% | 110 | -91.9% | 0.00% | – |
| Q2 2020 | $82,000 | +4000.0% | 1,358 | +5804.3% | 0.00% | – |
| Q3 2019 | $2,000 | -96.6% | 23 | -96.6% | 0.00% | – |
| Q3 2015 | $58,000 | -40.2% | 680 | +17.2% | 0.00% | – |
| Q2 2015 | $97,000 | +31.1% | 580 | -5.4% | 0.00% | – |
| Q1 2015 | $74,000 | -83.1% | 613 | -87.2% | 0.00% | -100.0% |
| Q4 2014 | $437,000 | – | 4,774 | – | 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% |