ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 118 filers reported holding ATARA BIOTHERAPEUTICS INC in Q2 2023. The put-call ratio across all filers is 0.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $226 | -97.5% | 153 | -97.3% | 0.00% | – |
| Q2 2023 | $9,194 | -44.5% | 5,711 | 0.0% | 0.00% | – |
| Q1 2023 | $16,561 | -94.9% | 5,711 | -72.7% | 0.00% | -100.0% |
| Q2 2021 | $324,000 | -0.9% | 20,898 | -8.6% | 0.00% | 0.0% |
| Q1 2021 | $327,000 | -0.3% | 22,862 | -10.0% | 0.00% | 0.0% |
| Q3 2020 | $328,000 | -15.9% | 25,413 | -5.3% | 0.00% | 0.0% |
| Q2 2020 | $390,000 | -53.0% | 26,838 | -46.9% | 0.00% | -50.0% |
| Q4 2019 | $830,000 | +16.6% | 50,513 | 0.0% | 0.00% | +100.0% |
| Q3 2019 | $712,000 | +318.8% | 50,513 | +392.4% | 0.00% | – |
| Q3 2017 | $170,000 | +448.4% | 10,259 | +575.4% | 0.00% | – |
| Q1 2017 | $31,000 | -69.3% | 1,519 | -78.4% | 0.00% | – |
| Q4 2016 | $101,000 | – | 7,034 | – | 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% |