Company Analysis

Spero Therapeutics, Inc. (SPRO)

Nasdaq: SPRO · Pharmaceutical Preparations · Cambridge, MA · filing with the SEC since 2017
Grade6.1
◀ Past 5.8● Present 6.5▶ Future 6.0
1 est.
The companyfiscal 2025, as filed
Revenue$66.8M+39.2%
Net income$8.6M+112.5%
Earnings per share$0.15+111.8%
Operating cash flow-$12.6M+46.2%
Cash$40.3M-23.9%
Debtn/a
Shareholders’ equity$59.0M+28.0%
Shares, diluted59.0M+9.3%
Return on equity14.5%
The recordfrom its filings
Filings in 202640
Newest filingNov 12 · 8-K
Annual reportMar 26, 2026
Quarterly reportNov 12, 2026
Next report due10-K by Mar 31
Insider sales, 12 months$500,000
Insider buys, 12 months$0.00
Patents granted7
Filer categoryNon-accelerated filer<br>Smaller reporting company
Trailing twelve months to Sep 2026Revenue $41.6MNet income -$29.5MCash from operations -$40.4Mthe four newest filed quarters added
Left: the newest annual report, with the change on the year before. Right: counted from the company's own filings with the SEC.
Revenue and net income by fiscal yearRevenueNet income
16171819202122232425
As filed, in USD. Nothing here is a forecast.

News

Nov 12, 2026 · SEC EDGAR · Form 8-K
Results released
Open the filing on sec.gov
Nov 12, 2026 · SEC EDGAR · Form 10-Q
Quarterly report
Open the filing on sec.gov
Nov 10, 2026 · SEC EDGAR · Form 4
Insider trade report
Open the filing on sec.gov
Nov 10, 2026 · SEC EDGAR · Form 4
Insider trade report
Open the filing on sec.gov
Nov 10, 2026 · SEC EDGAR · Form 8-K
Current report
Open the filing on sec.gov
Oct 27, 2026 · SEC EDGAR · Form 8-K
Current report
Open the filing on sec.gov
Sep 10, 2026 · SEC EDGAR · Form EFFECT
Registration effective
Open the filing on sec.gov
Aug 28, 2026 · SEC EDGAR · Form 8-K
Current report
Open the filing on sec.gov
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SI Assistanton SPRO · research, not advice