Timothy Keutzer

Companies

• Spero Therapeutics, Inc.Chief operating officer Feb 3, 2023 to now¹
• Spero Therapeutics, Inc.Chief Development Officer Jan 13, 2020 to Aug 30, 2023²

Holdings

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

Shares held

• STSpero Therapeutics, Inc. SPRO742,506 shares³$827.9K at $1.11Feb 6, 2026

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

Recent filings

• Feb 6, 2026Sold 18,652 shares at $2.36 of Spero Therapeutics, Inc.³
• Feb 4, 2026Sold 3,471 shares at $2.24 of Spero Therapeutics, Inc.⁴
• Feb 3, 2026Sold 24,224 shares at $2.14 of Spero Therapeutics, Inc.⁴
• Feb 2, 2026Sold 18,891 shares at $2.20 of Spero Therapeutics, Inc.⁴
• Feb 2, 2026Granted 68,000 shares of Spero Therapeutics, Inc.⁴
• Aug 28, 2025Sold 1,695 shares at $1.97 of Spero Therapeutics, Inc.⁵
• Feb 5, 2025Sold 24,920 shares at $0.78 of Spero Therapeutics, Inc.⁶
• Feb 5, 2025Sold 27,643 shares at $0.78 of Spero Therapeutics, Inc.⁶
• Feb 5, 2025Sold 3,974 shares at $0.78 of Spero Therapeutics, Inc.⁶
• Feb 3, 2025Granted 266,139 shares of Spero Therapeutics, Inc.⁶
• Aug 27, 2024Sold 2,213 shares at $1.35 of Spero Therapeutics, Inc.⁷
• Feb 2, 2024Sold 30,971 shares at $1.36 of Spero Therapeutics, Inc.⁸
• Feb 1, 2024Granted 239,731 shares of Spero Therapeutics, Inc.⁸
• Aug 28, 2023Sold 1,854 shares at $1.26 of Spero Therapeutics, Inc.⁹
• Feb 2, 2023Sold 3,394 shares at $1.86 of Spero Therapeutics, Inc.¹⁰
• Feb 1, 2023Granted 265,957 shares of Spero Therapeutics, Inc.¹⁰
• Feb 1, 2022Granted 38,014 shares of Spero Therapeutics, Inc.¹¹