---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-082060"
form_type: "8-K"
ticker: "SPRO"
cik: "0001701108"
company_name: "Spero Therapeutics, Inc."
filed_at: "2024-03-29T23:59:59+00:00"
generated_at: "2026-06-04T05:25:59.291472+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Spero Therapeutics sets 2024 Annual Meeting for May 29, 2024 (online)

## Summary
- Annual Meeting on May 29, 2024, will be held entirely online via virtual format.
- Meeting scheduled more than 30 days before prior year's meeting (Oct 5, 2023), triggering special notice under Bylaws.
- Stockholders should review Bylaws for deadlines on Rule 14a-8 proposals and director nominations.
- Proxy statement will detail online attendance, voting, and question submission procedures.

## SEC filing metadata
- accession: 0001193125-24-082060
- form_type: 8-K
- ticker: SPRO
- cik: 0001701108
- company_name: Spero Therapeutics, Inc.
- filed_at: 2024-03-29T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1701108/000119312524082060/0001193125-24-082060-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1701108/000119312524082060/d818262d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-082060
- JSON: https://secwatch.observer/filing/0001193125-24-082060.json
- Plain text: https://secwatch.observer/filing/0001193125-24-082060.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.