March 17, 2026 · Form 4 insider transaction
Panacea Innovation Ltd bought 259,163 shares of Atara Biotherapeutics Inc at $0.00 per share, a transaction worth $25.92. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
Represents securities held by Panacea Opportunity Fund I, L.P.; James Huang is the sole owner of Panacea Innovation Limited, which is the sole owner of Panacea Venture Healthcare Fund II GP Company, Ltd. ("Fund II GP") and Panacea Opportunity Fund I GP Company, Ltd. ("Opportunity Fund GP"), which are the general partners of Panacea Venture Healthcare Fund II, L.P. and Panacea Opportunity Fund I, L.P. As a result, each of the Reporting Persons may be deemed to share beneficial ownership of the securities held of record by Panacea Venture Healthcare Fund II, L.P. and Panacea Opportunity Fund I, L.P., but each disclaims such beneficial ownership.