---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-335265"
form_type: "8-K"
ticker: "SELF"
cik: "0001031235"
company_name: "Global Self Storage, Inc."
filed_at: "2025-12-29T23:59:59+00:00"
generated_at: "2026-05-16T12:03:39.473358+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Director Thomas Winmill resigns from Global Self Storage board after 28 years

## Summary
- Thomas Winmill resigned voluntarily effective December 19, 2025; no disagreement with company.
- Board size reduced by one to five directors, four of whom are independent.
- Winmill served on the board since 1997; resignation not due to any policy dispute.
- Company thanks Winmill for 28 years of service.

## SEC filing metadata
- accession: 0001193125-25-335265
- form_type: 8-K
- ticker: SELF
- cik: 0001031235
- company_name: Global Self Storage, Inc.
- filed_at: 2025-12-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1031235/000119312525335265/0001193125-25-335265-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1031235/000119312525335265/self-20251219.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-335265
- JSON: https://secwatch.observer/filing/0001193125-25-335265.json
- Plain text: https://secwatch.observer/filing/0001193125-25-335265.txt

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