ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 139 filers reported holding ATARA BIOTHERAPEUTICS INC in Q4 2021. The put-call ratio across all filers is 0.19 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2023 | $18,695 | -71.6% | 36,456 | -18.0% | 0.00% | – |
| Q3 2023 | $65,771 | -85.2% | 44,440 | -83.9% | 0.00% | -100.0% |
| Q2 2023 | $445,270 | -24.9% | 276,565 | +35.3% | 0.00% | -25.0% |
| Q1 2023 | $592,616 | -0.4% | 204,350 | +12.6% | 0.00% | +33.3% |
| Q4 2022 | $595,159 | +520.0% | 181,451 | +612.1% | 0.00% | +200.0% |
| Q3 2022 | $96,000 | -52.0% | 25,480 | -0.9% | 0.00% | 0.0% |
| Q2 2022 | $200,000 | -69.3% | 25,700 | -63.4% | 0.00% | -83.3% |
| Q1 2022 | $652,000 | +119.5% | 70,162 | +272.7% | 0.01% | +100.0% |
| Q4 2021 | $297,000 | -5.4% | 18,823 | +7.3% | 0.00% | -25.0% |
| Q3 2021 | $314,000 | -46.0% | 17,546 | -53.0% | 0.00% | -42.9% |
| Q2 2021 | $581,000 | -60.9% | 37,358 | -63.9% | 0.01% | -63.2% |
| Q1 2021 | $1,486,000 | +31.9% | 103,454 | +80.1% | 0.02% | +26.7% |
| Q4 2020 | $1,127,000 | +574.9% | 57,436 | +344.4% | 0.02% | +650.0% |
| Q3 2020 | $167,000 | +77.7% | 12,924 | +101.2% | 0.00% | 0.0% |
| Q2 2020 | $94,000 | -71.6% | 6,424 | -83.5% | 0.00% | -77.8% |
| Q1 2020 | $331,000 | -62.6% | 38,942 | -37.9% | 0.01% | -50.0% |
| Q3 2019 | $886,000 | -2.9% | 62,739 | +38.3% | 0.02% | +5.9% |
| Q2 2019 | $912,000 | +1882.6% | 45,371 | +3316.5% | 0.02% | +750.0% |
| Q4 2018 | $46,000 | -35.2% | 1,328 | -22.7% | 0.00% | -33.3% |
| Q1 2015 | $71,000 | -74.4% | 1,717 | -83.4% | 0.00% | -80.0% |
| Q4 2014 | $277,000 | – | 10,349 | – | 0.02% | – |
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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% |