---
schema_version: "secwatch.filing_event.v1"
accession: "0001175535-22-000073"
form_type: "8-K/A"
ticker: "WSR"
cik: "0001175535"
company_name: "Whitestone REIT"
filed_at: "2022-04-29T23:59:59+00:00"
generated_at: "2026-06-26T02:28:21.932190+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Whitestone REIT board member James Mastandrea resigns effective April 18; company disputes allegations

## Summary
- James Mastandrea resigned from the Board of Trustees on April 18, 2022, effective immediately.
- He had been terminated as CEO with cause on January 18, 2022, and removed as Chairman.
- Company states the allegations in Mastandrea's resignation and response letters are inaccurate and without merit.
- The 10-K referenced by Mastandrea was signed by a majority of the Board, not requiring his signature.
- Mastandrea's Power of Attorney from 2009 authorized David K. Holeman to execute Forms 3, 4, and 5.

## SEC filing metadata
- accession: 0001175535-22-000073
- form_type: 8-K/A
- ticker: WSR
- cik: 0001175535
- company_name: Whitestone REIT
- filed_at: 2022-04-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/0001175535-22-000073-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/wsr-20220418.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001175535-22-000073
- JSON: https://secwatch.observer/filing/0001175535-22-000073.json
- Plain text: https://secwatch.observer/filing/0001175535-22-000073.txt

## Key facts
- Executive change
  James Mastandrea resigned as Trustee at Whitestone REIT.
  - Action: resigned
  - Role: Trustee
  source text: On April 18, 2022, Whitestone REIT (the “Company”) received by email a resignation letter (the “Resignation Letter”) from James Mastandrea, a member of the Company’s Board of Trustees (“the Board”), pursuant to which Mr. Mastandrea resigned as a member of the Board, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1175535/000117553522000073/0001175535-22-000073-index.htm

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