Spero Therapeutics, Inc. last reported quarterly results on Aug 12, 2026, for Q2 FY2026 (the quarter ended Jun 30, 2026): revenue of $0 and diluted EPS of -$0.16. It usually reports 43–44 days after a quarter ends. Based on that pattern, the next release is estimated for around Nov 12, 2026.
Results for Q3 FY2026, the quarter ending around Sep 30, 2026. Expected on a Thursday. Based on last year's release for the same quarter on Nov 13, 2025. This is an estimate, not a date the company has announced.
Release dates are when the company filed its earnings announcement with the SEC (Form 8-K, Item 2.02); select a date to open the filing. It usually reports 43–44 days after a quarter ends. Figures are USD in millions, except EPS. The colored percent is the change from the same quarter a year earlier. Until a quarter's 10-Q or 10-K figures reach the SEC's data, they come from the earnings press release, and are shown only when its year-ago numbers match the filed ones. A dash means the figure could not be confirmed yet.
| Released | Quarter | Revenue | Net income | Diluted EPS |
|---|---|---|---|---|
|
Aug 12, 2026
43 days after quarter end
|
Q2 FY2026
ended Jun 30, 2026
|
0
|
-10
-461.9%
|
-0.16
-433.3%
|
|
May 13, 2026
43 days after quarter end
|
Q1 FY2026
ended Mar 31, 2026
|
0
-100.0%
|
-7
+48.1%
|
-0.13
+48.0%
|
|
Nov 13, 2025
44 days after quarter end
|
Q3 FY2025
ended Sep 30, 2025
|
0
-100.0%
|
-7
|
-0.13
+59.4%
|
|
Aug 12, 2025
43 days after quarter end
|
Q2 FY2025
ended Jun 30, 2025
|
0
-100.0%
|
-2
+90.5%
|
-0.03
+90.9%
|
|
May 13, 2025
43 days after quarter end
|
Q1 FY2025
ended Mar 31, 2025
|
0
-91.4%
|
-14
-9.4%
|
-0.25
-4.2%
|
|
Jan 10, 2025
10 days after quarter end
|
Q4 FY2024
ended Dec 31, 2024
|
0
-76.7%
|
—
|
—
|
|
Oct 29, 2024
29 days after quarter end
|
Q3 FY2024
ended Sep 30, 2024
|
0
-70.2%
|
—
|
-0.32
-433.3%
|
|
Aug 5, 2024
36 days after quarter end
|
—
ended Jun 30, 2024
|
—
|
—
|
—
|
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- SPRO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Cambridge, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1701108
- Former names
- Spero Therapeutics, LLC (until Mar 21, 2017)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.