ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 125 filers reported holding ATARA BIOTHERAPEUTICS INC in Q1 2023. The put-call ratio across all filers is 0.01 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $2,059,748 | -3.4% | 710,258 | +9.3% | 0.01% | -22.2% |
| Q4 2022 | $2,131,272 | -16.3% | 649,778 | -3.6% | 0.02% | -33.3% |
| Q3 2022 | $2,547,000 | -15.7% | 673,779 | +73.7% | 0.03% | -3.6% |
| Q2 2022 | $3,022,000 | -16.0% | 387,937 | +0.2% | 0.03% | +33.3% |
| Q1 2022 | $3,596,000 | -9.8% | 387,085 | +53.0% | 0.02% | 0.0% |
| Q4 2021 | $3,986,000 | +81.4% | 252,923 | +106.1% | 0.02% | +40.0% |
| Q3 2021 | $2,197,000 | -10.6% | 122,717 | -22.4% | 0.02% | 0.0% |
| Q2 2021 | $2,458,000 | -13.2% | 158,097 | -19.8% | 0.02% | -21.1% |
| Q1 2021 | $2,831,000 | +569.3% | 197,137 | +814.6% | 0.02% | +375.0% |
| Q4 2020 | $423,000 | -54.2% | 21,555 | -69.8% | 0.00% | -63.6% |
| Q3 2020 | $924,000 | +75.7% | 71,329 | +97.5% | 0.01% | +57.1% |
| Q2 2020 | $526,000 | -49.5% | 36,113 | -42.8% | 0.01% | -56.2% |
| Q4 2019 | $1,041,000 | -54.7% | 63,189 | -61.1% | 0.02% | -55.6% |
| Q3 2019 | $2,296,000 | -4.5% | 162,624 | +36.1% | 0.04% | -14.3% |
| Q2 2019 | $2,403,000 | -6.9% | 119,506 | +84.1% | 0.04% | 0.0% |
| Q1 2019 | $2,580,000 | – | 64,899 | – | 0.04% | – |
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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% |