---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-072869"
form_type: "8-K"
ticker: "KLRS"
cik: "0001754068"
company_name: "Kalaris Therapeutics, Inc."
filed_at: "2025-04-04T23:59:59+00:00"
generated_at: "2026-05-23T21:13:20.335885+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Kalaris Therapeutics appoints Leone Patterson to Board as Audit Committee Chair

## Summary
- Leone Patterson elected Class III director effective April 3, 2025; term expires at 2026 annual meeting.
- Patterson named Chair of Audit Committee; committee now includes Patterson, Adamis, and Jovan-Embiricos.
- No arrangements or family relationships with other directors; standard indemnification agreement to be entered.
- Company expects to adopt new non-employee director compensation program; Patterson will receive compensation once adopted.

## SEC filing metadata
- accession: 0001193125-25-072869
- form_type: 8-K
- ticker: KLRS
- cik: 0001754068
- company_name: Kalaris Therapeutics, Inc.
- filed_at: 2025-04-04T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1754068/000119312525072869/0001193125-25-072869-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1754068/000119312525072869/d891759d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-072869
- JSON: https://secwatch.observer/filing/0001193125-25-072869.json
- Plain text: https://secwatch.observer/filing/0001193125-25-072869.txt

## Key facts
- Executive change
  Leone Patterson was elected as Director and Chair of Audit Committee at Kalaris Therapeutics, Inc..
  - Action: elected
  - Role: Director and Chair of Audit Committee
  source text: On April 3, 2025, upon the recommendation of the Nominating and Corporate Governance Committee of the Board of Directors (the “Board”) of Kalaris Therapeutics, Inc. (the “Company”), the Board elected Leone Patterson to serve as a member of the Board, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1754068/000119312525072869/0001193125-25-072869-index.htm

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