---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-215534"
form_type: "8-K"
ticker: "SMA"
cik: "0001585389"
company_name: "SmartStop Self Storage REIT, Inc."
filed_at: "2025-09-24T23:59:59+00:00"
generated_at: "2026-05-17T05:46:23.262050+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# SmartStop to acquire Argus Professional Storage Management for $21M upfront plus $11M earnout

## Summary
- Total upfront consideration of $21M: $8.5M cash and 328,343 OP units; earnout up to $11M based on FY2028 revenue.
- Post-combination, SmartStop will own or manage over 460 self-storage properties in North America.
- Transaction unanimously approved by SmartStop board; expected to close early October 2025.
- Deal expected to be immediately accretive to SmartStop's FFO as Adjusted, per CEO H. Michael Schwartz.
- BMO Capital Markets acted as SmartStop's exclusive financial advisor; Nelson Mullins provided legal counsel.

## SEC filing metadata
- accession: 0001193125-25-215534
- form_type: 8-K
- ticker: SMA
- cik: 0001585389
- company_name: SmartStop Self Storage REIT, Inc.
- filed_at: 2025-09-24T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1585389/000119312525215534/0001193125-25-215534-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1585389/000119312525215534/ck0001585389-20250924.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-215534
- JSON: https://secwatch.observer/filing/0001193125-25-215534.json
- Plain text: https://secwatch.observer/filing/0001193125-25-215534.txt

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