Ryan Martins serves as Executive at 89bio, Inc., where they oversee executive responsibilities. Since joining the company, Ryan Martins has executed 43 insider transactions totaling $638.8K, demonstrating a bearish approach to their equity position. Their most recent transaction on Oct 30, 2025 involved receiving (via award) 35,000 shares valued at $0.
Ryan Martins currently holds 374,295 shares of 89bio, Inc. (ETNB), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Ryan Martins has been a net seller of ETNB stock. They have purchased $0 and sold $638.8K worth of shares.
Ryan Martins's most recent insider trade was on Oct 30, 2025, when they sold 35,000 shares at $0.00 per share.
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| $N/A |
| Discretionary |
| Oct 22, 2025 | ETNB | $239.2K | Option Exercise | 76,901 | $3.11 | Discretionary |
| Oct 22, 2025 | ETNB | $17.3K | Option Exercise | 3,898 | $4.44 | Discretionary |
| Aug 1, 2025 | ETNB | $70.3K | Payment | 7,680 | $9.16 | Discretionary |
| Sep 9, 2024 | ETNB | $27.2K | Payment | 3,212 | $8.46 | Discretionary |
| Aug 17, 2024 | ETNB | $6.2K | Payment | 777 | $8.04 | Discretionary |
| Feb 17, 2024 | ETNB | $7.6K | Payment | 778 | $9.74 | Discretionary |
| Feb 9, 2024 | ETNB | $30.1K | Payment | 3,568 | $8.45 | Discretionary |
| Feb 5, 2024 | ETNB | $8.7K | Payment | 892 | $9.80 | Discretionary |
| Feb 1, 2024 | ETNB | $0 | Award | 48,750 | $N/A | Discretionary |
| Jan 5, 2024 | ETNB | $0 | Award | 15,000 | $N/A | Discretionary |
| Jan 5, 2024 | ETNB | $70.6K | Payment | 6,124 | $11.53 | Discretionary |
| Sep 9, 2023 | ETNB | $34.4K | Payment | 2,074 | $16.61 | Discretionary |
| Aug 17, 2023 | ETNB | $11.6K | Payment | 753 | $15.46 | Discretionary |
| Aug 1, 2023 | ETNB | $5.4K | Payment | 346 | $15.64 | Discretionary |
| Jun 30, 2023 | ETNB | $0 | Award | 5,834 | $N/A | Discretionary |
| Jun 30, 2023 | ETNB | $38.2K | Payment | 2,018 | $18.95 | Discretionary |
| Apr 4, 2023 | ETNB | $130.4K | Sale | 8,721 | $14.95 | Discretionary |
| Mar 31, 2023 | ETNB | $0 | Award | 5,833 | $N/A | Discretionary |
| Mar 31, 2023 | ETNB | $30.7K | Payment | 2,018 | $15.23 | Discretionary |
| Mar 31, 2023 | ETNB | $0 | Award | 7,500 | $N/A | Discretionary |
| Mar 31, 2023 | ETNB | $39.5K | Payment | 2,594 | $15.23 | Discretionary |
| Mar 23, 2023 | ETNB | $80.5K | Sale | 5,000 | $16.11 | Discretionary |
| Feb 21, 2023 | ETNB | $35.3K | Sale | 2,540 | $13.89 | Discretionary |
| Feb 17, 2023 | ETNB | $24.4K | Payment | 1,750 | $13.97 | Discretionary |
| Feb 9, 2023 | ETNB | $0 | Award | 30,000 | $N/A | Discretionary |
| Feb 8, 2023 | ETNB | $21.3K | Sale | 1,480 | $14.41 | Discretionary |
| Feb 5, 2023 | ETNB | $7.8K | Payment | 592 | $13.24 | Discretionary |
| Feb 3, 2023 | ETNB | $39.3K | Sale | 3,000 | $13.11 | Discretionary |