Form4insider filings, from the source

Company · CIK 0001585389 · SIC 6798 — Real Estate Investment Trusts · NYSE

SmartStop Self Storage REIT, Inc. · SMA

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $14k · 1net −$14k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 17, 4:52 pm EDTDavid J MuellerDirector425$32.05$13,6214,215−9.16%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.