ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 151 filers reported holding ATARA BIOTHERAPEUTICS INC in Q1 2021. The put-call ratio across all filers is 0.30 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $178,000 | -50.3% | 12,428 | +20.5% | 0.00% | -55.6% |
| Q4 2018 | $358,000 | -16.2% | 10,315 | 0.0% | 0.01% | 0.0% |
| Q3 2018 | $427,000 | +12.7% | 10,315 | 0.0% | 0.01% | 0.0% |
| Q2 2018 | $379,000 | -5.7% | 10,315 | 0.0% | 0.01% | -10.0% |
| Q1 2018 | $402,000 | – | 10,315 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| HARBOR CAPITAL ADVISORS, INC. | 208,827 | $107,086 | 0.02% |