Spero Therapeutics, Inc. (NASDAQ:SPRO)
| Market Cap | 67.74M-48.7% |
| Revenue (ttm) | 42.96M-7.0% |
| Net Income | 7.38M+113.8% |
| EPS | 0.11+111.1% |
| Shares Out | 57.90M |
| PE Ratio | 8.36 |
| Forward PE | n/a |
| Dividend | n/a |
| Ex-Dividend Date | Sep 16, 2015 |
| Volume | 233,549 |
| Open | 1.19 |
| Previous Close | 1.19 |
| Day's Range | 1.16 - 1.19 |
| 52-Week Range | 1.08 - 3.08 |
| Beta | 1.50 |
| Analysts | Buy |
| Price Target | n/a |
| Earnings Date | Nov 12, 2026 |
Insiders here have filed 1 Form 4 in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
About SPRO
Spero Therapeutics, Inc. is a biopharmaceutical firm in the clinical development stage, primarily focused on discovering, advancing, and commercializing innovative treatments for multi-drug resistant (MDR) bacterial infections and rare diseases within the United States. The company's pipeline includes several key therapeutic candidates: tebipenem pivoxil hydrobromide (HBr), an oral carbapenem-class antibiotic designed to address complicated urinary tract infections (cUTIs), including pyelonephritis, in adult patients. SPR206, an intravenously administered agent specifically developed to combat MDR Gram-negative bacterial infections in hospital environments. SPR720, an oral antibiotic targeting non-tuberculous mycobacterial (NTM) pulmonary disease. Spero Therapeutics has also forged several strategic alliances: A licensing agreement with Meiji Seika Pharma Co., Ltd. supports the ongoing development of tebipenem HBr. A separate licensing deal with Everest Medicines grants rights for the development, manufacturing, and commercialization of SPR206 across Greater China, South Korea, and various Southeast Asian nations. The company collaborates with the Bill & Melinda Gates Medical Research Institute to advance SPR720 for treating lung infections caused by Mycobacterium tuberculosis. Furthermore, a licensing agreement with Vertex Pharmaceuticals Incorporated covers patents associated with SPR720 and its active metabolite, SPR719. Founded in 2013, Spero Therapeutics maintains its corporate headquarters in Cambridge, Massachusetts.
What Are Insiders Doing?
View the trades behind this meter — each links to its SEC Form 4 →
Open-market Form 4 purchases (code P) vs sales (code S) on file for this company. Grants, option exercises and tax withholdings are excluded. Informational only.
$SPRO stock is featured in our Insider Trades datasets.
→ All Stock ListsRecently reported changes in SPRO holdings by institutional investors
Latest 0 13F filings · Source: SEC EDGAR
View all institutional owners →Insider Trading
Quarterly net insider trading by SPRO's directors and management
Source: SEC EDGAR (Form 4)
Corporate Lobbying
SPRO Estimated quarterly lobbying spending
Source: U.S. Senate LDA
U.S. Patents
New SPRO patent grants
Source: USPTO Open Data Portal
Government Contracts
Estimated quarterly amount awarded to SPRO from public contracts
Source: USAspending.gov
Top ETF Holders
ETFs with the largest estimated holdings in SPRO
| ETF | Est. Holding Size |
|---|---|
| VTIVanguard Morningstar Total Stock Market ETF | $1.70M |
| VXFVanguard Extended Market ETF | $723.77K |
| GISCGuggenheim Funds Trust - Guggenheim Securitized Income ETF | $175.67K |
| IWCiShares Micro-Cap ETF | $170.46K |
| QQQSInvesco NASDAQ Future Gen 200 ETF | $117.03K |
| PRFZInvesco RAFI US 1500 Small-Mid ETF | $79.75K |
Estimated from each fund’s disclosed top holdings × AUM
SPRO Insider Score
Our composite score: insider buying, sector, volume, tone & dilution
Bull Case vs Bear Case
AI-generated from SPRO’s recent data — informational, not investment advice
