---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-240503"
form_type: "8-K"
ticker: "SYBX"
cik: "0001527599"
company_name: "SYNLOGIC, INC."
filed_at: "2023-09-22T23:59:59+00:00"
generated_at: "2026-06-10T09:39:15.451550+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Synlogic shareholders approve reverse stock split at 1:5 to 1:15 ratio

## Summary
- Shareholders approved reverse stock split at ratio between 1:5 and 1:15; board to set final ratio.
- 46.38M votes for, 1.12M votes against, 0.74M abstained on reverse split proposal.
- Adjournment proposal also approved with 47.23M votes for, 0.78M against.
- ~70.3% of eligible shares (48.24M of 68.60M) were present at the Sep 21, 2023 special meeting.

## SEC filing metadata
- accession: 0001193125-23-240503
- form_type: 8-K
- ticker: SYBX
- cik: 0001527599
- company_name: SYNLOGIC, INC.
- filed_at: 2023-09-22T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1527599/000119312523240503/0001193125-23-240503-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1527599/000119312523240503/d520257d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-240503
- JSON: https://secwatch.observer/filing/0001193125-23-240503.json
- Plain text: https://secwatch.observer/filing/0001193125-23-240503.txt

## Key facts
- Shareholder Votes
  SYNLOGIC, INC. shareholders approved Approval of an amendment to the certificate of incorporation to effect a reverse stock split at a ratio of not less than 1-for-5 and not more than 1-for-15 at the 2023-09-21 meeting.
  - Proposal: reverse split
  - Outcome: passed
  - Meeting: 2023-09-21
  source text: Proposal 1 The Company’s stockholders approved an amendment to the Company’s Amended and Restated Certificate of Incorporation, as amended, to effect a reverse stock split at a ratio of not less than 1-for-5 and not more than 1-for-15, with the exact ratio to be set within that range at the discretion of the Company’s Board of Directors (the “Board”) without further approval or authorization of the Company’s stockholders and with the Board able to elect to abandon such proposed amendment and not effect the reverse stock split authorized by stockholders, in its sole discretion. Votes For Votes Against Votes Abstained 46,381,445 1,117,575 738,277
  evidence_url: https://www.sec.gov/Archives/edgar/data/1527599/000119312523240503/0001193125-23-240503-index.htm
- Shareholder Votes
  SYNLOGIC, INC. shareholders approved Approval of an adjournment of the special meeting to solicit additional proxies if necessary to adopt Proposal 1 at the 2023-09-21 meeting.
  - Outcome: passed
  - Meeting: 2023-09-21
  source text: Proposal 2 The Company’s stockholders approved an adjournment of the Special Meeting to a later date or dates, if necessary or appropriate, to solicit additional proxies if there are insufficient votes to adopt Proposal 1. Votes For Votes Against Votes Abstained 47,228,190 782,326 226,781
  evidence_url: https://www.sec.gov/Archives/edgar/data/1527599/000119312523240503/0001193125-23-240503-index.htm

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