ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 145 filers reported holding ATARA BIOTHERAPEUTICS INC in Q2 2021. The put-call ratio across all filers is 1.18 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2024 | $35 | -14.6% | 50 | -37.5% | 0.00% | – |
| Q4 2023 | $41 | -96.5% | 80 | -90.0% | 0.00% | – |
| Q3 2023 | $1,187 | +2.4% | 802 | +11.4% | 0.00% | – |
| Q2 2023 | $1,159 | +28875.0% | 720 | -50.3% | 0.00% | – |
| Q1 2023 | $4 | -71.4% | 1,450 | -66.7% | 0.00% | – |
| Q4 2022 | $14 | -100.0% | 4,350 | -32.7% | 0.00% | – |
| Q3 2022 | $28,000 | +460.0% | 6,460 | +893.8% | 0.00% | – |
| Q2 2022 | $5,000 | -16.7% | 650 | 0.0% | 0.00% | – |
| Q1 2022 | $6,000 | -92.8% | 650 | -85.9% | 0.00% | -100.0% |
| Q3 2021 | $83,000 | +15.3% | 4,620 | 0.0% | 0.00% | – |
| Q2 2021 | $72,000 | +9.1% | 4,620 | 0.0% | 0.00% | – |
| Q1 2021 | $66,000 | -27.5% | 4,620 | 0.0% | 0.00% | -100.0% |
| Q4 2020 | $91,000 | +911.1% | 4,620 | +589.6% | 0.00% | – |
| Q3 2020 | $9,000 | +50.0% | 670 | +55.8% | 0.00% | – |
| Q2 2020 | $6,000 | +50.0% | 430 | 0.0% | 0.00% | – |
| Q1 2020 | $4,000 | 0.0% | 430 | +87.0% | 0.00% | – |
| Q4 2019 | $4,000 | +33.3% | 230 | 0.0% | 0.00% | – |
| Q3 2019 | $3,000 | -40.0% | 230 | 0.0% | 0.00% | – |
| Q2 2019 | $5,000 | -44.4% | 230 | 0.0% | 0.00% | – |
| Q1 2019 | $9,000 | +12.5% | 230 | 0.0% | 0.00% | – |
| Q4 2018 | $8,000 | -20.0% | 230 | 0.0% | 0.00% | – |
| Q3 2018 | $10,000 | – | 230 | – | 0.00% | – |
Download | ||||||
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% |