Spero Therapeutics, Inc. (SPRO) › Shares OutstandingSpero Therapeutics, Inc. (SPRO) — Shares OutstandingAnnual figures by fiscal year, from SEC filings.2016: 02017: 14.37M2018: 17.21M2019: 19.19M2020: 29.26M2021: 32.39M2022: 52.46M2023: 53.00M2024: 54.59M2025: 56.41M56.41M2016Shares Outstanding (shares)2025Fiscal YearShares OutstandingChange YoY202556.41M+3.3%202454.59M+3.0%202353.00M+1.0%202252.46M+61.9%202132.39M+10.7%202029.26M+52.5%201919.19M+11.5%201817.21M+19.7%201714.37M—20160—Other metrics: RevenueCost of RevenueGross ProfitOperating IncomeNet IncomeEPS (Diluted)Total AssetsTotal LiabilitiesShareholders' EquityCash & EquivalentsOperating Cash FlowCapital ExpendituresDividends Per Share