Bihua Chen, 10% Owner at Ambrx Biopharma Inc. (AMAM), bought 10,430,378 shares at $11.60 ($117.9M) on 2023-04-20, disclosed to the SEC on 2023-04-20.
High-signal trade — passes our conviction filters but the AI narrative is still being generated. Check back shortly.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $11.27 | 3,376,646 | $38.1M | 32.3% |
| 2 | $11.27 | 3,376,646 | $38.1M | 32.3% |
| 3 | $11.15 | 951,909 | $10.6M | 9.0% |
| 4 | $11.15 | 951,909 | $10.6M | 9.0% |
| 5 | $11.60 | 886,634 | $10.3M | 8.7% |
| 6 | $11.60 | 886,634 |
| $10.3M |
| 8.7% |
| Total | $11.30 avg | 10,430,378 | $117.9M | 100% |
| Filing → |
| CRBP | SELL | 2025-12-15 | $688K | — | Filing → |
| AARD | BUY | 2025-02-19 | $3.0M | — | Filing → |
| BIOA | BUY | 2024-10-01 | $8.1M | — | Filing → |