Spero Therapeutics, Inc. reports

Company location: Cambridge, MA
Fiscal year end: 31 December

Spero Therapeutics, Inc. has filed 513 SEC EDGAR filings since 21 Mar 2017

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SEC filing history

Showing 26-50 of 513 matching filings.

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25

Current page

2

8-K File 001-38266

8-K

Filing date: 26 Mar 2026
Reporting date: 26 Mar 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-K File 001-38266

10-K

Filing date: 26 Mar 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 09 Feb 2026
Reporting date: 06 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 09 Feb 2026
Reporting date: 06 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 05 Feb 2026
Reporting date: 02 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 04 Feb 2026
Reporting date: 02 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-38266

8-K

Filing date: 30 Jan 2026
Reporting date: 30 Jan 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-38266

8-K

Filing date: 19 Dec 2025
Reporting date: 19 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-38266

8-K

Filing date: 13 Nov 2025
Reporting date: 13 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-38266

10-Q

Filing date: 13 Nov 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 12 Nov 2025
Reporting date: 07 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 03 Sep 2025
Reporting date: 28 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 03 Sep 2025
Reporting date: 28 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G/A File 005-90168

SCHEDULE 13G/A filing

Filing date: 14 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-289544

S-8

Filing date: 12 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-38266

10-Q

Filing date: 12 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-38266

8-K

Filing date: 12 Aug 2025
Reporting date: 12 Aug 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-38266

8-K

Filing date: 18 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 16 Jun 2025
Reporting date: 12 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

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