---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-047912"
form_type: "8-K"
ticker: "UTHR"
cik: "0001082554"
company_name: "UNITED THERAPEUTICS Corp"
filed_at: "2023-04-21T23:59:59+00:00"
generated_at: "2026-06-16T21:05:27.665240+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# United Therapeutics amends bylaws to enhance stockholder proposal and nomination procedures

## Summary
- Amendments require additional background info on proposing stockholders and nominees, and representation on solicitation intentions.
- Updates procedural mechanics for adjourned meetings, inspectors of election, and proxy revocability.
- Eliminates stockholder list inspection at meetings; opts out of DGCL Section 116 for written delivery of notices.
- Certificates and uncertificated shares must conspicuously state company is a public benefit corporation.

## SEC filing metadata
- accession: 0001104659-23-047912
- form_type: 8-K
- ticker: UTHR
- cik: 0001082554
- company_name: UNITED THERAPEUTICS Corp
- filed_at: 2023-04-21T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1082554/000110465923047912/0001104659-23-047912-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1082554/000110465923047912/tm2313121d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-047912
- JSON: https://secwatch.observer/filing/0001104659-23-047912.json
- Plain text: https://secwatch.observer/filing/0001104659-23-047912.txt

## Key facts
- Governance Changes
  UNITED THERAPEUTICS Corp: Adopted Tenth Amended and Restated Bylaws with various amendments including enhanced stockholder proposal and director nomination procedures, adjourned meeting mechanics, proxy rules, and technical changes (effective 2023-04-20).
  - Change: bylaw amendment
  - Effective: 2023-04-20
  source text: On April 20, 2023, the Board of Directors (the “ Board ”) of United Therapeutics Corporation (the “ Company ”) approved and adopted the Company’s Tenth Amended and Restated Bylaws (as amended and restated, the “ Bylaws ”), which became effective the same day.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1082554/000110465923047912/0001104659-23-047912-index.htm

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