# Spero Therapeutics, Inc. (SPRO) SEC filings and CIK

Canonical: https://sec-api.dev/companies/spro

> SPRO’s SEC CIK is 0001701108 (1701108).

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| Filed | Form | Filing |
| --- | --- | --- |
| 2026-11-10 | 4 | https://www.sec.gov/Archives/edgar/data/1701108/000119312526455873/0001193125-26-455873-index.htm |
| 2026-11-10 | 4 | https://www.sec.gov/Archives/edgar/data/1701108/000119312526455869/0001193125-26-455869-index.htm |
| 2026-11-10 | 3 | https://www.sec.gov/Archives/edgar/data/1701108/000119312526455868/0001193125-26-455868-index.htm |
| 2026-11-10 | 8-K | https://www.sec.gov/Archives/edgar/data/1701108/000119312526455789/0001193125-26-455789-index.htm |

API: GET https://sec-api.dev/api/v1/filings?cik=1701108

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