Ryan Martins

Companies

• 89bio, Inc.Chief financial officer Nov 8, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• 889bio, Inc.0 shares²Oct 30, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Oct 30, 2025U 374,295 shares of 89bio, Inc.²
• Oct 30, 2025Granted 35,000 shares of 89bio, Inc.²
• Oct 22, 2025Exercised options 3,898 shares at $4.44 of 89bio, Inc.³
• Oct 22, 2025Exercised options 76,901 shares at $3.11 of 89bio, Inc.³
• Aug 1, 2025Shares withheld for tax 7,680 shares at $9.16 of 89bio, Inc.⁴
• Jun 12, 2025Shares withheld for tax 8,498 shares at $9.62 of 89bio, Inc.⁵
• Feb 17, 2025Shares withheld for tax 780 shares at $10.57 of 89bio, Inc.⁶
• Feb 9, 2025Shares withheld for tax 3,828 shares at $11.41 of 89bio, Inc.⁷
• Feb 1, 2025Shares withheld for tax 3,338 shares at $9.60 of 89bio, Inc.⁸
• Feb 1, 2025Granted 80,000 shares of 89bio, Inc.⁸
• Dec 12, 2024Granted 95,000 shares of 89bio, Inc.⁹
• Sep 9, 2024Shares withheld for tax 3,212 shares at $8.46 of 89bio, Inc.¹⁰
• Aug 17, 2024Shares withheld for tax 777 shares at $8.04 of 89bio, Inc.¹¹
• Feb 17, 2024Shares withheld for tax 778 shares at $9.74 of 89bio, Inc.¹²
• Feb 9, 2024Shares withheld for tax 3,568 shares at $8.45 of 89bio, Inc.¹³
• Feb 5, 2024Shares withheld for tax 892 shares at $9.80 of 89bio, Inc.¹⁴
• Feb 1, 2024Granted 48,750 shares of 89bio, Inc.¹⁴
• Jan 5, 2024Shares withheld for tax 6,124 shares at $11.53 of 89bio, Inc.¹⁵
• Jan 5, 2024Granted 15,000 shares of 89bio, Inc.¹⁵
• Sep 9, 2023Shares withheld for tax 2,074 shares at $16.61 of 89bio, Inc.¹⁶
• Aug 17, 2023Shares withheld for tax 753 shares at $15.46 of 89bio, Inc.¹⁷
• Aug 1, 2023Shares withheld for tax 346 shares at $15.64 of 89bio, Inc.¹⁷
• Jun 30, 2023Shares withheld for tax 2,018 shares at $18.95 of 89bio, Inc.¹⁸
• Jun 30, 2023Granted 5,834 shares of 89bio, Inc.¹⁸
• Apr 4, 2023Sold 8,721 shares at $14.95 of 89bio, Inc.¹⁹