ATARA BIOTHERAPEUTICS INC's ticker is and the CUSIP is 046513907. A total of 3 filers reported holding ATARA BIOTHERAPEUTICS INC in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1 | 0.0% | 1,100 | +10.0% | 0.00% | – |
| Q2 2023 | $1 | -95.7% | 1,000 | -87.8% | 0.00% | – |
| Q1 2023 | $23 | -99.8% | 8,200 | +192.9% | 0.00% | – |
| Q3 2022 | $10,000 | -61.5% | 2,800 | -17.6% | 0.00% | – |
| Q2 2022 | $26,000 | -16.1% | 3,400 | +70.0% | 0.00% | – |
| Q4 2021 | $31,000 | +244.4% | 2,000 | +233.3% | 0.00% | – |
| Q3 2021 | $9,000 | 0.0% | 600 | 0.0% | 0.00% | – |
| Q2 2021 | $9,000 | -70.0% | 600 | +2757.1% | 0.00% | – |
| Q1 2021 | $30,000 | -83.5% | 21 | -77.4% | 0.00% | – |
| Q4 2020 | $182,000 | +264.0% | 93 | +138.5% | 0.00% | – |
| Q3 2020 | $50,000 | -66.2% | 39 | -61.8% | 0.00% | – |
| Q2 2020 | $148,000 | +74.1% | 102 | +1.0% | 0.00% | – |
| Q1 2020 | $85,000 | +507.1% | 101 | +1022.2% | 0.00% | – |
| Q4 2019 | $14,000 | -94.1% | 9 | -94.6% | 0.00% | -100.0% |
| Q3 2019 | $237,000 | +6.3% | 168 | +51.4% | 0.00% | 0.0% |
| Q2 2019 | $223,000 | +145.1% | 111 | +382.6% | 0.00% | – |
| Q1 2019 | $91,000 | -61.3% | 23 | -59.6% | 0.00% | -100.0% |
| Q3 2018 | $235,000 | -39.0% | 57 | -45.7% | 0.00% | -50.0% |
| Q2 2018 | $385,000 | +288.9% | 105 | -73.0% | 0.00% | -50.0% |
| Q1 2018 | $99,000 | +725.0% | 389 | +289.0% | 0.00% | +300.0% |
| Q4 2017 | $12,000 | -14.3% | 100 | +42.9% | 0.00% | 0.0% |
| Q2 2017 | $14,000 | – | 70 | +180.0% | 0.00% | – |
| Q3 2015 | $0 | – | 25 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 21 | $30,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 6,600 | $95,000 | 0.00% |