---
schema_version: "secwatch.filing_event.v1"
accession: "0000784199-23-000139"
form_type: "8-K"
ticker: "AORT"
cik: "0000784199"
company_name: "ARTIVION, INC."
filed_at: "2023-08-08T23:59:59+00:00"
generated_at: "2026-06-12T03:18:18.284107+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Artivion amends Bylaws to adopt universal proxy card rules and update governance provisions

## Summary
- Extends stockholder notice period for director nominations and business proposals.
- Requires nominating stockholders to use non-white proxy cards and comply with SEC Rule 14a-19.
- Nominating stockholders must solicit minimum share percentages specified under universal proxy rules.
- Updates regulations on cell phones, recording devices at meetings; conforms to DGCL Sections 116, 216, 219, 222.
- Amendments effective September 1, 2023; other ministerial and clarifying changes included.

## SEC filing metadata
- accession: 0000784199-23-000139
- form_type: 8-K
- ticker: AORT
- cik: 0000784199
- company_name: ARTIVION, INC.
- filed_at: 2023-08-08T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/784199/000078419923000139/0000784199-23-000139-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/784199/000078419923000139/aort-20230802.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000784199-23-000139
- JSON: https://secwatch.observer/filing/0000784199-23-000139.json
- Plain text: https://secwatch.observer/filing/0000784199-23-000139.txt

## Key facts
- Governance Changes
  ARTIVION, INC.: Amended Bylaws to update director nomination procedures, universal proxy card rules, meeting conduct, and other governance provisions (effective 2023-09-01).
  - Change: bylaw amendment
  - Effective: 2023-09-01
  source text: On August 2, 2023, as part of its periodic review of corporate governance matters and legal changes that have taken effect to the Delaware General Corporation Law (the “DGCL”) and the rules and regulations promulgated by the U.S. Securities and Exchange Commission (the “SEC”) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Board of Directors of Artivion, Inc. (the “Company”) approved and adopted amendments to the Company’s Bylaws (as amended and restated, the “Bylaws”), effective as of September 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/784199/000078419923000139/0000784199-23-000139-index.htm

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