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Insider ActivityATRA
Panacea Innovation Ltd, Insider at Atara Biotherapeutics, Inc., sold $3.2M of ATRA
Updated Jun 12, 2026
Panacea Innovation Ltd
Insider
Atara Biotherapeutics, Inc. ·
$ATRA
Transaction Details
| Insider | Panacea Innovation Ltd |
|---|---|
| Title | Insider |
| Company | Atara Biotherapeutics, Inc. |
| Ticker | ATRA |
| Transaction Type | Sale |
| Transaction Date | 2026-05-07 |
| Shares Traded | 313,446 |
| Price Per Share | $10.0975 |
| Total Value | $3.2M |
| Filed Date | 2026-05-11 |
| Accession Number | 0001193125-26-217380 |
Ownership Context
| Shares Owned After Transaction | 1,011,000 |
|---|---|
| Ownership Type | Indirect |
SEC Filing
Accession: 0001193125-26-217380
Other Insider Trades — ATRA
| Insider | Title | Action | Value | Date |
|---|---|---|---|---|
| HEIDEN WILLIAM K | Insider | traded | — | 2026-06-09 |
| Fust Matthew K | Insider | traded | — | 2026-06-09 |
| Ciongoli Gregory Austin | Insider | traded | — | 2026-06-09 |
| Grant-Huerta Yanina | Chief Accounting Officer | sold | $22K | 2026-05-18 |
| Nguyen AnhCo | President and CEO | sold | $48K | 2026-05-18 |
| EcoR1 Capital, LLC | 10% Owner | bought | $4.7M | 2026-05-07 |
Full Ticker Profile
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Data sourced from SEC Form 4 insider trading filings. Transaction details are as reported to the Securities and Exchange Commission. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of SEC filings.
Last updated: June 12, 2026 at 07:09 UTC