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SCHEDULE 13D/A
SCHEDULE 13D/A0001193125-26-013362·Atara Biotherapeutics, Inc.
Schedule 13D ownership disclosure
ATARA BIOTHERAPEUTICS INC
Common Stock · CUSIP: 046513107
Event date: 2026-01-12
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- Panacea Innovation LimitedReported CIK 0002010692
Shares: 1,632,345 · Class: 19.99%
- Panacea Venture Healthcare Fund II, L.P.Reported CIK 0001869939
Shares: 1,324,446 · Class: 18.2%
- Panacea Venture Healthcare Fund II GP Company, Ltd.
Shares: 1,324,446 · Class: 18.2%
- Panacea Opportunity Fund I, L.P.Reported CIK 0001869966
Shares: 307,899 · Class: 4.1%
- Panacea Opportunity Fund I GP Company, Ltd.
Shares: 307,899 · Class: 4.1%
- James HuangReported CIK 0001573160
Shares: 1,632,345 · Class: 19.99%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001193125-26-013362
- Form type
- SCHEDULE 13D/A
- Filer
- Atara Biotherapeutics, Inc.
- CIK
- CIK 1604464
- Filed
- Jan 14, 2026
- Reporting period
- Jan 12, 2026
- Description
- Schedule 13D beneficial ownership