Spero Therapeutics, Inc. - SPRO
All tracked SEC files for this issuer. Showing up to 200 latest records.
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Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 18
Latest filed: Jul 14, 2026
| Form | Count |
|---|---|
| 4 | 12 |
| 8-K | 6 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Jul 14, 2026 | 8-K | Jul 08, 2026 | 0001193125-26-302473 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283245 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283238 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283198 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283202 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283209 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283226 | View |
| Jun 25, 2026 | 4 | Jun 23, 2026 | 0001193125-26-283230 | View |
| Jun 25, 2026 | 8-K | Jun 23, 2026 | 0001193125-26-283033 | View |
| Jun 22, 2026 | 8-K | Jun 17, 2026 | 0001193125-26-277506 | View |
| May 13, 2026 | 8-K | May 13, 2026 | 0001193125-26-221567 | View |
| May 06, 2026 | 4 | May 04, 2026 | 0001193125-26-209884 | View |
| Mar 26, 2026 | 8-K | Mar 26, 2026 | 0001193125-26-126244 | View |
| Feb 09, 2026 | 4 | Feb 06, 2026 | 0001193125-26-043315 | View |
| Feb 09, 2026 | 4 | Feb 06, 2026 | 0001193125-26-043336 | View |
| Feb 05, 2026 | 4 | Feb 02, 2026 | 0001193125-26-038441 | View |
| Feb 04, 2026 | 4 | Feb 02, 2026 | 0001193125-26-038184 | View |
| Jan 30, 2026 | 8-K | Jan 30, 2026 | 0001193125-26-032004 | View |