---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-090114"
form_type: "8-K"
ticker: "LBRDA"
cik: "0001611983"
company_name: "Liberty Broadband Corp"
filed_at: "2024-08-15T23:59:59+00:00"
generated_at: "2026-05-31T09:01:18.945902+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Liberty Broadband amends bylaws with updated advance notice and universal proxy provisions

## Summary
- Advance notice window for stockholder proposals changed to 90-120 days before annual meeting; special meeting window also 90-120 days.
- Incorporated universal proxy rule (Rule 14a-19) into director nomination procedures.
- New requirements: proposer and nominee must disclose voting agreements and submit background questionnaire.
- Amended definitions of beneficial/record ownership to align with Exchange Act Rule 13d-3.
- Conformed bylaws to recent Delaware General Corporation Law changes on adjournment, stock certificates, and notice by email.

## SEC filing metadata
- accession: 0001104659-24-090114
- form_type: 8-K
- ticker: LBRDA
- cik: 0001611983
- company_name: Liberty Broadband Corp
- filed_at: 2024-08-15T23:59:59+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/1611983/000110465924090114/0001104659-24-090114-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1611983/000110465924090114/tm2421782d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-090114
- JSON: https://secwatch.observer/filing/0001104659-24-090114.json
- Plain text: https://secwatch.observer/filing/0001104659-24-090114.txt

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