---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-296630"
form_type: "8-K"
ticker: "PHAT"
cik: "0001783183"
company_name: "Phathom Pharmaceuticals, Inc."
filed_at: "2023-12-15T23:59:59+00:00"
generated_at: "2026-06-07T11:59:59.849940+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Phathom amends bylaws to adopt universal proxy rules and enhance stockholder nomination disclosures

## Summary
- Amended bylaws require compliance with SEC Rule 14a-19 for proxy solicitations supporting non-Board nominees.
- Enhanced disclosure requirements for stockholders nominating directors or submitting proposals at meetings.
- Changes effective December 13, 2023; also includes technical and modernizing updates.

## SEC filing metadata
- accession: 0001193125-23-296630
- form_type: 8-K
- ticker: PHAT
- cik: 0001783183
- company_name: Phathom Pharmaceuticals, Inc.
- filed_at: 2023-12-15T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1783183/000119312523296630/0001193125-23-296630-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1783183/000119312523296630/d602391d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-296630
- JSON: https://secwatch.observer/filing/0001193125-23-296630.json
- Plain text: https://secwatch.observer/filing/0001193125-23-296630.txt

## Key facts
- Governance Changes
  Phathom Pharmaceuticals, Inc.: Amended and restated bylaws to address universal proxy rules, enhance procedural mechanics for stockholder nominations and proposals, and make technical updates (effective 2023-12-13).
  - Change: bylaw amendment
  - Effective: 2023-12-13
  source text: On December 13, 2023, the Board of Directors (the “Board”) of Phathom Pharmaceuticals, Inc. (the “Company”) approved and adopted amended and restated bylaws (the “Amended and Restated Bylaws”), which became effective the same day.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1783183/000119312523296630/0001193125-23-296630-index.htm

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