BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 196 filers reported holding BLUEBIRD BIO INC in Q4 2015. The put-call ratio across all filers is 1.25 and the average weighting 0.2%.
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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 ↓ |
|---|---|---|---|
| Third Rock Ventures, LLC | 3,313,974 | $78,939,000 | 22.36% |
| HARBOURVEST PARTNERS LLC | 59,264 | $1,243,000 | 3.98% |
| RA Capital Management | 467,418 | $9,806,000 | 1.14% |
| HAMILTON LANE ADVISORS LLC | 88,628 | $1,859,000 | 1.08% |
| COWEN INC. | 158,709 | $3,330,000 | 0.56% |
| SPHERA FUNDS MANAGEMENT LTD. | 92,435 | $1,939,000 | 0.54% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 423,224 | $8,879,000 | 0.46% |
| Camber Capital Management LP | 206,900 | $4,341,000 | 0.38% |
| Eventide Asset Management | 25,700 | $539,000 | 0.17% |
| SABBY MANAGEMENT, LLC | 102,035 | $2,141,000 | 0.14% |