89bio, Inc. (ETNB) has 50 open-market insider trades by 16 insiders since 2019. The most active filer is Ram Waisbourd.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Peter Kolchinsky | Dir10% Owner | — | 3 | $128.3M | 2025-01-30 |
| RA Capital Management, L.P. | Dir10% Owner | — | 2 | $116.4M | 2023-03-24 |
| RA Capital Healthcare Fund LP | Dir10% Owner | — | 3 | $32.5M | 2023-12-11 |
| RA Capital Nexus Fund, L.P. | Dir10% Owner | — | 2 | $27.9M | 2022-10-18 |
| Gregory Grunberg | Dir10% Owner | — | 3 | $12.2M | 2021-04-21 |
| Anat Naschitz | Dir10% Owner | — | 2 | $10.6M | 2020-09-21 |
| Pontifax Management 4 G.P. (2015) Ltd. | Dir10% Owner | — | 1 | $4.0M | 2019-11-13 |
| Michael R. Hayden | Dir | — | 2 | $2.4M | 2025-10-30 |
| Ram Waisbourd | — | — | 14 | $2.0M | 2022-02-17 |
| OrbiMed Advisors Israel II Ltd | 10% Owner | — | 1 | $979K | 2022-01-26 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Quoc Le-Nguyen | — | Sell | $231K | 2025-07-15 |
| Quoc Le-Nguyen | — | Sell | $182K | 2025-04-15 |
| Peter Kolchinsky | Director & 10% Owner | Buy | $100.0M | 2025-01-30 |
| Charles McWherter | Director | Buy | $100K | 2025-01-21 |
| Quoc Le-Nguyen | — | Sell | $142K | 2025-01-15 |
| Rohan Palekar | CEO | Buy | $39K | 2024-12-06 |
Companies that share insiders with ETNB, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Charles McWherter | Director | Buy | $80K | 2024-12-05 |
| Rohan Palekar | CEO | Buy | $84K | 2024-11-22 |
| Quoc Le-Nguyen | — | Sell | $454K | 2024-10-30 |
| Rohan Palekar | CEO | Sell | $1.2M | 2024-04-01 |
| Peter Kolchinsky | Director & 10% Owner | Buy | $20.7M | 2024-03-04 |
| Rohan Palekar | CEO | Sell | $48K | 2024-02-26 |
| Rohan Palekar | CEO | Sell | $560K | 2023-12-29 |
| Kathleen Laporte | Director | Sell | $235K | 2023-07-17 |
| Rohan Palekar | CEO | Sell | $300K | 2023-06-05 |