Spero Therapeutics Income Statement

Financials in millions USD. Fiscal year is January - December.

Millions USD. Fiscal year is Jan - Dec.

Fiscal Year	TTM	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Period Ending	Sep '25 Sep 30, 2025	Dec '24 Dec 31, 2024	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021	Dec '20 Dec 31, 2020
Revenue	40.55	47.98	103.78	53.51	18.26	9.33
Revenue Growth (YoY)	-61.91%	-53.77%	93.95%	193.10%	95.67%	-48.59%
Gross Profit	40.55	47.98	103.78	53.51	18.26	9.33
Selling, General & Admin	23.93	23.7	25.55	36.48	41.7	21.44
Research & Development	61.71	96.76	51.44	47.59	64.53	67
Other Operating Expenses	1.72	0.88	5.31	11.63	-	-
Total Operating Expenses	87.37	121.34	82.3	95.71	106.23	88.44
Operating Income	-46.82	-73.36	21.48	-42.2	-87.97	-79.11
Interest Income	3.16	4.74	3.94	1.11	0.35	0.4
Interest Expense	-	-	-	-2.61	-1.94	-
Other Non-Operating Income (Expense)	0.11	0.06	-0.01	-2.72	-0.19	0.43
Total Non-Operating Income (Expense)	3.27	4.8	3.92	-4.22	-1.79	0.83
Pretax Income	-43.55	-68.57	25.4	-46.42	-89.76	-78.28
Provision for Income Taxes	-0.29	-	-2.6	-	-	-
Net Income	-43.84	-68.57	28	-46.42	-89.76	-78.28
Net Income to Common	-43.84	-68.57	28	-46.42	-89.76	-78.28
Shares Outstanding (Basic)	56	54	53	38	31	22
Shares Outstanding (Diluted)	56	54	53	38	31	22
Shares Change (YoY)	3.50%	1.98%	40.98%	21.65%	38.01%	23.27%
EPS (Basic)	-0.79	-1.27	0.43	-1.23	-2.91	-3.52
EPS (Diluted)	-0.79	-1.27	0.43	-1.23	-2.91	-3.52
Free Cash Flow	-27.67	-23.44	-33	-7.73	-64.35	-86.03
Free Cash Flow Per Share	-0.50	-0.43	-0.62	-0.21	-2.08	-3.84
Gross Margin	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%
Operating Margin	-115.46%	-152.91%	20.70%	-78.86%	-481.87%	-847.94%
Profit Margin	-106.68%	-142.91%	26.98%	-86.74%	-491.65%	-839.01%
FCF Margin	-68.25%	-48.87%	-31.79%	-14.45%	-352.47%	-922.07%
EBITDA	-46.82	-73.36	21.85	-41.33	-87.33	-78.35
EBITDA Margin	-115.46%	-152.90%	21.05%	-77.24%	-478.34%	-839.79%
EBIT	-46.82	-73.36	21.48	-42.2	-87.97	-79.11
EBIT Margin	-115.46%	-152.91%	20.70%	-78.86%	-481.87%	-847.94%
Effective Tax Rate	0.67%	0.00%	-10.23%	0.00%	0.00%	0.00%

Updated Nov 13, 2025. Data Source: Fiscal.ai. Standard template. Financial Sources.

SEC Filings: 10-K · 10-Q