---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-049437"
form_type: "8-K"
ticker: null
cik: "0001832168"
company_name: "Longboard Pharmaceuticals, Inc."
filed_at: "2023-09-22T23:59:59+00:00"
generated_at: "2026-06-10T09:51:05.348351+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Longboard Pharmaceuticals amends bylaws to adopt Universal Proxy Rules and DGCL updates

## Summary
- Board approved amended bylaws effective Sept 21, 2023 to address SEC Universal Proxy Rule 14a-19.
- New rules require nominating stockholders to disclose proxy solicitation intent and provide compliance evidence.
- Clarifies number of nominees cannot exceed directors to be elected; requires non-white proxy card for dissidents.
- Updates include adjournment procedures, delivery of notices, and other administrative changes per DGCL.

## SEC filing metadata
- accession: 0000950170-23-049437
- form_type: 8-K
- cik: 0001832168
- company_name: Longboard Pharmaceuticals, Inc.
- filed_at: 2023-09-22T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1832168/000095017023049437/0000950170-23-049437-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1832168/000095017023049437/lbph-20230921.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-049437
- JSON: https://secwatch.observer/filing/0000950170-23-049437.json
- Plain text: https://secwatch.observer/filing/0000950170-23-049437.txt

## Key facts
- Governance Changes
  Longboard Pharmaceuticals, Inc.: Amended and restated bylaws to address universal proxy rules and make other updates (effective 2023-09-21).
  - Change: bylaw amendment
  - Effective: 2023-09-21
  source text: On September 21, 2023, the Board of Directors (the "Board") of Longboard Pharmaceuticals, Inc. (the "Company") approved and adopted an amendment and restatement of the Company's bylaws (as amended and restated, the "Bylaws"), effective as of the date of such approval.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1832168/000095017023049437/0000950170-23-049437-index.htm

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