Spero Therapeutics, Inc.

Ownership Transactions Reported by 19 Insiders

Symbol
SPRO on Nasdaq
Industry
Pharmaceutical Preparations
Location
675 Massachusetts Avenue, 14 Th Floor, Cambridge, MA

Insiders trading volume in the past year

Spero Therapeutics, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
GSK plc 10%+ Owner $11.7M Nov 7, 2022
Aquilo Capital Management, LLC 10%+ Owner $4.34M Sep 22, 2022
Timothy Keutzer Chief Operating Officer $1.46M -$47.4K -3.15% Aug 28, 2025
Ankit Mahadevia Director $1.39M -$66.9K -4.61% Aug 28, 2025
Sath Shukla CEO & President $1.35M -$121K -8.21% Feb 3, 2025
Kamal Hamed Chief Medical Officer $1.08M Feb 1, 2024
Tamara Joseph Chief Legal Officer $728K Feb 1, 2024
Esther Rajavelu Chief Executive Officer, Chief Financial Officer and Chief Business Officer $655K -$69.1K -9.55% May 2, 2025
Cristina Larkin Chief Operating Officer $140K Feb 1, 2022
David A. Melnick Chief Medical Officer $138K Feb 1, 2022
Milind Deshpande Director $66.8K Jun 12, 2025
Frank E. Thomas Director $54.8K Jun 12, 2025
Cynthia Smith Director $54.8K Jun 12, 2025
Kathleen Tregoning Director $54.8K Jun 12, 2025
Scott Thomas Jackson Director $54.8K Jun 12, 2025
John C. Pottage Jr Director $54.8K Jun 12, 2025
Patrick Vink Director $54.8K Jun 12, 2025
Formela Jean Francois Director $8.4K Aug 17, 2021
Stephen J. DiPalma Interim Chief Financial Officer Exhibit 24.1 - Power of Attorney Jul 15, 2023

Recent Insider Transactions by Companies or Individuals for Spero Therapeutics, Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.