---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-417059"
form_type: "8-K"
ticker: "SNDA"
cik: "0001043000"
company_name: "SONIDA SENIOR LIVING, INC."
filed_at: "2026-10-07T21:04:47+00:00"
generated_at: "2026-10-12T15:46:47.223021+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Sonida Senior Living board adopts amended and restated bylaws effective October 2, 2026

## Summary
- Board adopted Amended and Restated Bylaws on October 2, 2026; changes include stockholder nomination deadlines of no later than 90 days and no earlier than 120 days before the prior annual meeting.
- Exclusive forum revised to the Delaware Court of Chancery for intra-corporate claims; federal district courts become exclusive forum for Securities Act claims.
- Bylaws address Rule 14a-19 universal proxy rules, remove Board co-chair position, and require a Lead Director chosen by independent directors if the Chair is not independent.
- Nominating stockholders must hold shares of record from notice through the meeting; proposed nominees must submit questionnaires and interview within 10 days of a reasonable Board request.
- Signed by Senior Vice President and Chief Legal Officer Tabitha Bailey on October 7, 2026; Amended and Restated Bylaws attached as Exhibit 3.1.

## SEC filing metadata
- accession: 0001193125-26-417059
- form_type: 8-K
- ticker: SNDA
- cik: 0001043000
- company_name: SONIDA SENIOR LIVING, INC.
- filed_at: 2026-10-07T21:04:47+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1043000/000119312526417059/0001193125-26-417059-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1043000/000119312526417059/d117099d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-417059
- JSON: https://secwatch.observer/filing/0001193125-26-417059.json
- Plain text: https://secwatch.observer/filing/0001193125-26-417059.txt

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