---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-158936"
form_type: "8-K"
ticker: "CABA"
cik: "0001759138"
company_name: "Cabaletta Bio, Inc."
filed_at: "2023-06-01T23:59:59+00:00"
generated_at: "2026-06-14T09:35:54.403641+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Cabaletta Bio stockholders approve 3M share increase to 2019 equity plan, elect Scott Brun as director

## Summary
- Scott Brun, M.D. elected Class I director with 23.6M votes for, 1.2M withheld, serving until 2026 annual meeting.
- Amendment to 2019 Stock Option Plan approved, increasing authorized shares by 3,000,000 to 5,342,288.
- Ratification of Ernst & Young as independent auditor for FY2023 passed with 27.3M votes for.
- All proposals passed at June 1, 2023 Annual Meeting; no other matters voted on.

## SEC filing metadata
- accession: 0001193125-23-158936
- form_type: 8-K
- ticker: CABA
- cik: 0001759138
- company_name: Cabaletta Bio, Inc.
- filed_at: 2023-06-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1759138/000119312523158936/0001193125-23-158936-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1759138/000119312523158936/d516711d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-158936
- JSON: https://secwatch.observer/filing/0001193125-23-158936.json
- Plain text: https://secwatch.observer/filing/0001193125-23-158936.txt

## Key facts
- Shareholder Votes
  Cabaletta Bio, Inc. shareholders approved Ratification of appointment of Ernst & Young LLP as independent registered public accounting firm for fiscal year ending December 31, 2023 at the 2023-06-01 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2023-06-01
  source text: The votes cast at the Annual Meeting were as follows: For Against Abstain Broker Non-Votes 27,268,632 5,343 9,170 0
  evidence_url: https://www.sec.gov/Archives/edgar/data/1759138/000119312523158936/0001193125-23-158936-index.htm
- Shareholder Votes
  Cabaletta Bio, Inc. shareholders approved Approval of amendment to the 2019 Plan at the 2023-06-01 meeting.
  - Proposal: equity plan
  - Outcome: passed
  - Meeting: 2023-06-01
  source text: The votes cast at the Annual Meeting were as follows: For Against Abstain Broker Non-Votes 21,684,293 3,045,532 12,925 2,540,395
  evidence_url: https://www.sec.gov/Archives/edgar/data/1759138/000119312523158936/0001193125-23-158936-index.htm
- Shareholder Votes
  Cabaletta Bio, Inc. shareholders approved Election of Class I director Scott Brun, M.D. at the 2023-06-01 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2023-06-01
  source text: The votes cast at the Annual Meeting were as follows: For Withheld Broker Non-Votes Scott Brun, M.D. 23,574,643 1,168,107 2,540,395
  evidence_url: https://www.sec.gov/Archives/edgar/data/1759138/000119312523158936/0001193125-23-158936-index.htm

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