---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-122485"
form_type: "8-K"
ticker: "LYRA"
cik: "0001327273"
company_name: "Lyra Therapeutics, Inc."
filed_at: "2025-05-19T23:59:59+00:00"
generated_at: "2026-05-21T01:19:19.224483+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Lyra Therapeutics approves 1-for-50 reverse stock split, effective May 27

## Summary
- Stockholders approved reverse-split authority at 1-for-10 to 1-for-50 range; Board set final ratio at 1-for-50.
- Reverse split effective 5:00 p.m. ET May 27, 2025; split-adjusted trading starts May 28 under symbol LYRA.
- No fractional shares issued; holders receive cash payment based on May 27 closing price.
- CUSIP changes to 55234L204 after split.

## SEC filing metadata
- accession: 0001193125-25-122485
- form_type: 8-K
- ticker: LYRA
- cik: 0001327273
- company_name: Lyra Therapeutics, Inc.
- filed_at: 2025-05-19T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- confidence: high
- sec_items: 5.07, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1327273/000119312525122485/0001193125-25-122485-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1327273/000119312525122485/d932010d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-122485
- JSON: https://secwatch.observer/filing/0001193125-25-122485.json
- Plain text: https://secwatch.observer/filing/0001193125-25-122485.txt

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