---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-145078"
form_type: "8-K"
ticker: "CBT"
cik: "0000016040"
company_name: "CABOT CORP"
filed_at: "2023-05-15T23:59:59+00:00"
generated_at: "2026-06-15T01:12:09.348294+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Cabot amends bylaws for universal proxy rules and sets 2024 proposal deadline

## Summary
- Board adopted amended and restated bylaws on May 11, 2023.
- Amendments update procedures per SEC universal proxy rules and recent Delaware law changes.
- Stockholder proposals (non-Rule 14a-8) and director nominations for 2024 annual meeting must be submitted between Nov 10 and Dec 10, 2023.
- Provisions include earlier notice deadlines, appearance requirement, and compliance with Rule 14a-19.

## SEC filing metadata
- accession: 0001193125-23-145078
- form_type: 8-K
- ticker: CBT
- cik: 0000016040
- company_name: CABOT CORP
- filed_at: 2023-05-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/16040/000119312523145078/0001193125-23-145078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/16040/000119312523145078/d511497d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-145078
- JSON: https://secwatch.observer/filing/0001193125-23-145078.json
- Plain text: https://secwatch.observer/filing/0001193125-23-145078.txt

## Key facts
- Governance Changes
  CABOT CORP: Amended and restated By-laws to update procedural requirements for director nominations, reflect DGCL changes, and make administrative updates (effective 2023-05-11).
  - Change: bylaw amendment
  - Effective: 2023-05-11
  source text: On May 11, 2023, the Board of Directors of Cabot Corporation (the “Company”) amended and restated the Company’s By-laws.
  evidence_url: https://www.sec.gov/Archives/edgar/data/16040/000119312523145078/0001193125-23-145078-index.htm

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