Summary
Updated Aug 31, 2026
Panacea Innovation Ltd files SEC Form 4 reports at Atara Biotherapeutics, Inc. (ATRA). 6 SEC Form 4 filings on record going back to 2025, most recently on 11 May 2026. Most recent open-market trade: sold $3.17M of ATRA on 11 May 2026. Lifetime open-market purchases: $857K. Lifetime open-market sales: $3.65M.
Recent Transactions
8Every recent SEC Form 4 transaction Panacea Innovation Ltd has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Panacea Innovation Ltd go back to 2025: 6 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $428K (2 buys totaling $857K). The largest single buy on record is $670K of ATRA in 2025. Sales side: 2 recorded sales totaling $3.65M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Panacea Innovation Ltd files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- EcoR1 Capital, LLC - $4.74M of ATRA open-market activity in the last 12 months
- Anhco Nguyen - $142K of ATRA open-market activity in the last 12 months
- Yanina Grant-Huerta - $57K of ATRA open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is Panacea Innovation Ltd?
Panacea Innovation Ltd is a corporate entity of Atara Biotherapeutics, Inc. (ATRA). InsiderAlpha holds 6 primary Form 4 filings for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Panacea Innovation Ltd last file a Form 4?
The most recent primary Form 4 on record is dated 11 May 2026, one of 6 filings going back to 2025.
Has Panacea Innovation Ltd been buying or selling stock?
Recorded transactions: 2 open-market purchases ($857K) and 2 open-market sales ($3.65M) across all tracked filings.
Where can I see all of Panacea Innovation Ltd's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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