Spero Therapeutics, Inc. (SPRO)
NASDAQ: SPRO · Real-Time Price · USD
2.670
0.00 (0.00%)
At close: Apr 28, 2026, 4:00 PM EDT
2.650
-0.020 (-0.75%)
After-hours: Apr 28, 2026, 7:30 PM EDT

Company Description

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying and developing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States.

The company’s product candidates include Tebipenem HBr (tebipenem pivoxil hydrobromide), an oral carbapenem-class antibiotic to treat complicated urinary tract infections, including pyelonephritis for adult patients, which is in Phase 3 development; and SPR720, a novel product candidate for first-line treatment of nontuberculous mycobacterial (NTM) pulmonary disease.

It has license agreement with Meiji Seika Pharma Co., Ltd. to support the development of tebipenem HBr; Everest Medicines to develop, manufacture, and commercialize SPR206 in Greater China, South Korea, and Southeast Asian countries; and Vertex Pharmaceuticals Incorporated for patents relating to the oral prodrug SPR720, as well as SPR719, an active metabolite.

Spero Therapeutics, Inc. was founded in 2013 and is headquartered in Cambridge, Massachusetts.

Spero Therapeutics, Inc.
Spero Therapeutics logo
Country United States
Founded 2013
IPO Date Nov 2, 2017
Industry Biotechnology
Sector Healthcare
Employees 25
CEO Esther Rajavelu

Contact Details

Address:
675 Massachusetts Avenue, 14th Floor
Cambridge, Massachusetts 02139
United States
Phone 857 242 1600
Website sperotherapeutics.com

Stock Details

Ticker Symbol SPRO
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0001701108
CUSIP Number 84833T103
ISIN Number US84833T1034
SIC Code 2834

Key Executives

Name Position
Esther P. Rajavelu Chief Executive Officer, President, Chief Financial Officer, Chief Business Officer, Treasurer and Director
Timothy Keutzer Chief Operating Officer
John Raymond Senior Vice President of Finance and Business Operations
Sheila Finan Senior Vice President of Controller

Latest SEC Filings

Date Type Title
Apr 27, 2026 ARS Filing
Apr 27, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Apr 27, 2026 DEF 14A Other definitive proxy statements
Apr 13, 2026 PRE 14A Other preliminary proxy statements
Mar 26, 2026 8-K Current Report
Mar 26, 2026 10-K Annual Report
Jan 30, 2026 8-K Current Report
Dec 19, 2025 8-K Current Report
Nov 13, 2025 8-K Current Report
Nov 13, 2025 10-Q Quarterly Report