Aaron Kantoff

Companies

• Avalo Therapeutics, Inc.Board member Apr 3, 2024 to now¹
• Tourmaline Bio, Inc.Board member Oct 23, 2023 to now²
• Centessa Pharmaceuticals plcBoard member May 27, 2021 to Nov 18, 2021³

Holdings

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

Shares held

• ATAvalo Therapeutics, Inc. AVTX6,333 shares⁴$73.3K at $11.58Mar 28, 2026
• TBTourmaline Bio, Inc.0 shares⁵Oct 28, 2025
• CPCentessa Pharmaceuticals plc60,000 shares⁶Nov 18, 2021

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

Recent filings

• Mar 28, 2026Exercised options 3,166 shares of Avalo Therapeutics, Inc.⁴
• Oct 28, 2025U 88,281 shares of Tourmaline Bio, Inc.⁵
• Oct 24, 2025Gift 5,000 shares of Tourmaline Bio, Inc.⁷
• Sep 5, 2025Exercised options 10,000 shares at $9.46 of Tourmaline Bio, Inc.⁸
• Sep 5, 2025Exercised options 37,890 shares at $0.13 of Tourmaline Bio, Inc.⁸
• Mar 28, 2025Exercised options 3,167 shares of Avalo Therapeutics, Inc.⁹
• Oct 24, 2023Bought 7,500 shares at $11.86 of Tourmaline Bio, Inc.¹⁰
• Oct 19, 2023Granted 37,891 shares of Tourmaline Bio, Inc.¹¹
• Nov 18, 2021Bought 10,000 shares at $11.99 of Centessa Pharmaceuticals plc⁶