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%.
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Filings
- All filings
- Annual reports (20-F)
- Quarterly reports (6-K)
- Insider transactions
- Shareholder votes
- Significant ownership
- Events
EDGAR links
External links
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $53,964 | -88.4% | 17,186 | +59.9% | 0.00% | -100.0% |
| Q4 2020 | $467,000 | -1.1% | 10,751 | +25.1% | 0.00% | 0.0% |
| Q3 2020 | $472,000 | +49.4% | 8,593 | +65.8% | 0.00% | 0.0% |
| Q2 2020 | $316,000 | +50.5% | 5,183 | +13.6% | 0.00% | – |
| Q1 2020 | $210,000 | -81.4% | 4,562 | -64.6% | 0.00% | -100.0% |
| Q4 2019 | $1,131,000 | -52.2% | 12,900 | -50.0% | 0.00% | -50.0% |
| Q3 2019 | $2,368,000 | +119.1% | 25,800 | +151.1% | 0.00% | +100.0% |
| Q2 2017 | $1,081,000 | +47.5% | 10,274 | +30.2% | 0.00% | 0.0% |
| Q1 2017 | $733,000 | +54.3% | 7,890 | +2.6% | 0.00% | +100.0% |
| Q4 2016 | $475,000 | +69.0% | 7,693 | +75.8% | 0.00% | 0.0% |
| Q4 2015 | $281,000 | +30.7% | 4,376 | +74.4% | 0.00% | 0.0% |
| Q3 2015 | $215,000 | -59.7% | 2,509 | -20.9% | 0.00% | 0.0% |
| Q2 2015 | $534,000 | – | 3,172 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 5,910,687 | $24,470,000 | 3.71% |
| Monaco Asset Management SAM | 306,142 | $1,267,000 | 0.55% |
| Parametrica Management Ltd | 90,105 | $374,000 | 0.41% |
| Kamunting Street Capital Management, L.P. | 55,200 | $229,000 | 0.31% |
| Birchview Capital, LP | 98,000 | $406,000 | 0.30% |
| Kamunting Street Capital Management, L.P. | 35,000 | $145,000 | 0.20% |
| PDT Partners, LLC | 519,477 | $2,151,000 | 0.19% |
| Graham Capital Management, L.P. | 781,912 | $3,237,000 | 0.13% |
| CAXTON ASSOCIATES LP | 220,154 | $911,000 | 0.09% |
| Baker Brothers Advisors | 2,499,715 | $10,349,000 | 0.06% |