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Spero Therapeutics, Inc. — Quarterly Financials

Quarterly figures from SEC EDGAR XBRL filings (10-Q)

These figures are extracted from XBRL-tagged quarterly reports (10-Q) that Spero Therapeutics, Inc. filed with the SEC. Values are as reported for each individual quarter (Q1, Q2, Q3, Q4) — not cumulative year-to-date. Negative figures indicate a loss.

Overview All Filings Annual Quarterly Insiders

Revenue — By Quarter

Quarter Fiscal Year Period End Value Filed
Q3 2025 Sep 30, 2025 $5.44M Nov 13, 2025
Q2 2025 Jun 30, 2025 $14.19M Aug 12, 2025
Q1 2025 Mar 31, 2025 $5.87M May 13, 2025
Q3 2025 Sep 30, 2024 $13.47M Nov 13, 2025
Q2 2025 Jun 30, 2024 $10.20M Aug 12, 2025
Q1 2025 Mar 31, 2024 $9.27M May 13, 2025
Q3 2024 Sep 30, 2023 $25.47M Nov 14, 2024
Q2 2024 Jun 30, 2023 $2.72M Aug 5, 2024
Q1 2024 Mar 31, 2023 $2.07M May 15, 2024
Q3 2023 Sep 30, 2022 $2.01M Nov 13, 2023
Q2 2023 Jun 30, 2022 $1.99M Aug 10, 2023
Q1 2023 Mar 31, 2022 $2.07M May 11, 2023
Q3 2022 Sep 30, 2021 $3.06M Nov 14, 2022
Q2 2022 Jun 30, 2021 $5.15M Aug 10, 2022
Q1 2022 Mar 31, 2021 $7.30M May 16, 2022
Q3 2021 Sep 30, 2020 $4.00M Nov 10, 2021
Q2 2021 Jun 30, 2020 $1.73M Aug 5, 2021
Q1 2021 Mar 31, 2020 $1.70M May 6, 2021
Q3 2020 Sep 30, 2019 $4.64M Nov 5, 2020
Q2 2020 Jun 30, 2019 $2.16M Aug 6, 2020

Revenue — By Quarter

Quarter Fiscal Year Period End Value Filed
Q3 2025 Sep 30, 2025 $0 Nov 13, 2025
Q2 2025 Jun 30, 2025 $0 Aug 12, 2025
Q1 2025 Mar 31, 2025 $12.0K May 13, 2025
Q3 2025 Sep 30, 2024 $65.0K Nov 13, 2025
Q2 2025 Jun 30, 2024 $114.0K Aug 12, 2025
Q1 2025 Mar 31, 2024 $140.0K May 13, 2025
Q3 2024 Sep 30, 2023 $218.0K Nov 14, 2024
Q2 2024 Jun 30, 2023 $269.0K Aug 5, 2024
Q1 2024 Mar 31, 2023 $223.0K May 15, 2024
Q3 2023 Sep 30, 2022 $1.08M Nov 13, 2023
Q2 2023 Jun 30, 2022 $896.0K Aug 10, 2023
Q1 2023 Mar 31, 2022 $247.0K May 11, 2023
Q3 2022 Sep 30, 2021 $708.0K Nov 14, 2022
Q2 2022 Jun 30, 2021 $2.11M Aug 10, 2022
Q3 2021 Sep 30, 2020 $38.0K Nov 10, 2021
Q2 2021 Jun 30, 2020 $51.0K Aug 5, 2021
Q1 2021 Mar 31, 2020 $169.0K May 6, 2021
Q3 2020 Sep 30, 2019 $172.0K Nov 5, 2020
Q2 2020 Jun 30, 2019 $67.0K Aug 6, 2020
Q1 2020 Mar 31, 2019 $3.81M May 8, 2020

Net Income — By Quarter

Quarter Fiscal Year Period End Value Filed
Q3 2025 Sep 30, 2025 ($7.38M) Nov 13, 2025
Q2 2025 Jun 30, 2025 ($1.70M) Aug 12, 2025
Q1 2025 Mar 31, 2025 ($13.87M) May 13, 2025
Q3 2025 Sep 30, 2024 ($17.15M) Nov 13, 2025
Q2 2025 Jun 30, 2024 ($17.86M) Aug 12, 2025
Q1 2025 Mar 31, 2024 ($12.67M) May 13, 2025
Q3 2023 Sep 30, 2023 ($3.20M) Nov 13, 2023
Q2 2024 Jun 30, 2023 ($11.90M) Aug 5, 2024
Q1 2024 Mar 31, 2023 ($13.30M) May 15, 2024
Q3 2023 Sep 30, 2022 ($11.70M) Nov 13, 2023
Q2 2023 Jun 30, 2022 ($28.70M) Aug 10, 2023
Q1 2023 Mar 31, 2022 ($32.80M) May 11, 2023
Q3 2022 Sep 30, 2021 ($22.50M) Nov 14, 2022
Q2 2022 Jun 30, 2021 ($18.60M) Aug 10, 2022
Q1 2022 Mar 31, 2021 ($19.40M) May 16, 2022
Q3 2021 Sep 30, 2020 ($18.90M) Nov 10, 2021
Q2 2021 Jun 30, 2020 ($17.50M) Aug 5, 2021
Q1 2021 Mar 31, 2020 ($23.30M) May 6, 2021
Q3 2020 Sep 30, 2019 ($17.70M) Nov 5, 2020
Q2 2020 Jun 30, 2019 ($13.20M) Aug 6, 2020

Operating Income — By Quarter

Quarter Fiscal Year Period End Value Filed
Q3 2025 Sep 30, 2025 ($7.92M) Nov 13, 2025
Q2 2025 Jun 30, 2025 ($2.44M) Aug 12, 2025
Q1 2025 Mar 31, 2025 ($14.73M) May 13, 2025
Q3 2025 Sep 30, 2024 ($18.59M) Nov 13, 2025
Q2 2025 Jun 30, 2024 ($19.06M) Aug 12, 2025
Q1 2025 Mar 31, 2024 ($13.98M) May 13, 2025
Q3 2024 Sep 30, 2023 ($1.93M) Nov 14, 2024
Q2 2024 Jun 30, 2023 ($12.89M) Aug 5, 2024
Q1 2024 Mar 31, 2023 ($14.23M) May 15, 2024
Q3 2023 Sep 30, 2022 ($11.83M) Nov 13, 2023
Q2 2023 Jun 30, 2022 ($26.08M) Aug 10, 2023
Q1 2023 Mar 31, 2022 ($30.21M) May 11, 2023
Q3 2022 Sep 30, 2021 ($22.52M) Nov 14, 2022
Q2 2022 Jun 30, 2021 ($18.54M) Aug 10, 2022
Q1 2022 Mar 31, 2021 ($19.40M) May 16, 2022
Q3 2021 Sep 30, 2020 ($19.02M) Nov 10, 2021
Q2 2021 Jun 30, 2020 ($18.48M) Aug 5, 2021
Q1 2021 Mar 31, 2020 ($22.82M) May 6, 2021
Q3 2020 Sep 30, 2019 ($17.99M) Nov 5, 2020
Q2 2020 Jun 30, 2019 ($13.65M) Aug 6, 2020