ATARA BIOTHERAPEUTICS INC's ticker is and the CUSIP is 046513907. A total of 4 filers reported holding ATARA BIOTHERAPEUTICS INC in Q3 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
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% |