ATARA BIOTHERAPEUTICS INC's ticker is ATRA and the CUSIP is 046513107. A total of 72 filers reported holding ATARA BIOTHERAPEUTICS INC in Q2 2016. The put-call ratio across all filers is 0.14 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2016 | $0 | -100.0% | 0 | -100.0% | 0.00% | -100.0% |
| Q4 2015 | $121,000 | -16.0% | 4,600 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $144,000 | -40.5% | 4,600 | 0.0% | 0.00% | 0.0% |
| Q2 2015 | $242,000 | +154.7% | 4,600 | +100.0% | 0.00% | – |
| Q1 2015 | $95,000 | +75.9% | 2,300 | +15.0% | 0.00% | – |
| Q4 2014 | $54,000 | – | 2,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| HARBOR CAPITAL ADVISORS, INC. | 208,827 | $107,086 | 0.02% |