HEIDEN WILLIAM K
Insider trading activity for HEIDEN WILLIAM K sourced from SEC EDGAR Form 4 filings.
Overview
- Company: Atara Biotherapeutics, Inc.
- Total insider trades: 5
- Total buy volume: $0
- Total sell volume: $0
- Last trade: Jun 11, 2026
Recent Trades
| Date | Insider | Ticker / Company | Type | Shares | Value |
|---|---|---|---|---|---|
| Jun 9, 2026 | HEIDEN WILLIAM K | ATRA Atara Biotherapeutics, Inc. | OTHER | 12,000 | N/A |
| May 19, 2026 | HEIDEN WILLIAM K | MGNX MACROGENICS INC | OTHER | 22,000 | N/A |
| May 19, 2026 | HEIDEN WILLIAM K | MGNX MACROGENICS INC | OTHER | 3,750 | N/A |
| May 18, 2026 | HEIDEN WILLIAM K | MGNX MACROGENICS INC | OTHER | 3,750 | N/A |
| May 18, 2026 | HEIDEN WILLIAM K | MGNX MACROGENICS INC | OTHER | 3,750 | N/A |