ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 119 filers reported holding ATARA BIOTHERAPEUTICS INC in Q2 2019. The put-call ratio across all filers is 0.24 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $0 | – | 290 | 0.0% | 0.00% | – |
| Q2 2023 | $0 | -100.0% | 290 | -98.1% | 0.00% | – |
| Q1 2023 | $45 | +9.8% | 15,667 | +23.9% | 0.00% | – |
| Q4 2022 | $41 | -99.9% | 12,647 | +12.3% | 0.00% | – |
| Q3 2022 | $43,000 | -61.3% | 11,261 | -20.9% | 0.00% | -100.0% |
| Q2 2022 | $111,000 | +3600.0% | 14,233 | +4807.9% | 0.00% | – |
| Q1 2022 | $3,000 | -40.0% | 290 | 0.0% | 0.00% | – |
| Q4 2021 | $5,000 | 0.0% | 290 | 0.0% | 0.00% | – |
| Q3 2021 | $5,000 | +150.0% | 290 | +98.6% | 0.00% | – |
| Q2 2021 | $2,000 | 0.0% | 146 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | -33.3% | 146 | 0.0% | 0.00% | – |
| Q4 2020 | $3,000 | -40.0% | 146 | -64.2% | 0.00% | – |
| Q3 2020 | $5,000 | +66.7% | 408 | +33.3% | 0.00% | – |
| Q2 2020 | $3,000 | 0.0% | 306 | 0.0% | 0.00% | – |
| Q1 2020 | $3,000 | -40.0% | 306 | 0.0% | 0.00% | – |
| Q4 2019 | $5,000 | 0.0% | 306 | -10.5% | 0.00% | – |
| Q3 2019 | $5,000 | -16.7% | 342 | +16.3% | 0.00% | – |
| Q2 2019 | $6,000 | -50.0% | 294 | 0.0% | 0.00% | – |
| Q1 2019 | $12,000 | +71.4% | 294 | +41.3% | 0.00% | – |
| Q4 2018 | $7,000 | -22.2% | 208 | 0.0% | 0.00% | – |
| Q3 2018 | $9,000 | +12.5% | 208 | 0.0% | 0.00% | – |
| Q2 2018 | $8,000 | 0.0% | 208 | 0.0% | 0.00% | – |
| Q1 2018 | $8,000 | – | 208 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 1,063,189 | $56,094,000 | 18.70% |
| Baupost Group | 4,809,632 | $253,756,000 | 4.23% |
| Ghost Tree Capital, LLC | 100,000 | $5,276,000 | 1.71% |
| Redmile Group, LLC | 372,642 | $19,661,000 | 1.61% |
| BRIDGER MANAGEMENT, LLC | 501,297 | $26,448,000 | 0.84% |
| Visium Asset Management, LP | 904,514 | $47,722,000 | 0.68% |
| Cupps Capital Management, LLC | 78,660 | $4,150,000 | 0.40% |
| Cormorant Asset Management, LP | 50,000 | $2,638,000 | 0.35% |
| TIVERTON ASSET MANAGEMENT LLC | 225,113 | $11,877,000 | 0.24% |
| ArrowMark Colorado Holdings LLC | 123,668 | $6,525,000 | 0.16% |