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 $91k · 5net −$91k
$10k$10k$100k$100k$1M$1MbuyssalesJun 15Jun 30Jul 16Aug 1Aug 16Sep 1Sep 17

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
Aug 17, 2026 SForm 4 →Aug 18, 4:43 pm EDTDavid J MuellerDirector425$33.70$14,3234,640−8.39%10b5-1
Aug 14, 2026 SForm 4 →Aug 18, 4:36 pm EDTNicholas LookGeneral Counsel and Secretary1,025$34.36$35,219588−63.5%
Jul 16, 2026 SForm 4 →Jul 16, 5:14 pm EDTDavid J MuellerDirector425$33.38$14,1875,065−7.74%10b5-1
Jun 23, 2026 AForm 4 →Jun 25, 4:36 pm EDTTimothy S. MorrisDirector3,075——18,253—
Jun 16, 2026 SForm 4 →Jun 17, 8:23 pm EDTDavid J MuellerDirector425$32.44$13,7875,490−7.19%10b5-1
Jun 12, 2018 AForm 4 →Jun 12, 3:48 pm EDTHarold PerryDirector3,500——9,750— plan?
Jun 12, 2018 AForm 4 →Jun 12, 3:25 pm EDTDavid J MuellerDirector3,500——11,000— plan?
Jun 12, 2018 AForm 4 →Jun 12, 3:24 pm EDTTimothy S. MorrisDirector3,500——9,750— plan?
Oct 31, 2017 JForm 4 →Nov 2, 10:00 am EDTPaula M. MathewsExecutive VP and Secretary, Director4,321$8.10$35,0007,823— plan?
Jun 5, 2017 AForm 4 →Jun 5, 5:06 pm EDTDavid J MuellerDirector2,500——7,500— plan?
Jun 5, 2017 AForm 4 →Jun 5, 4:43 pm EDTHarold PerryDirector2,500——6,250— plan?
Jun 5, 2017 AForm 4 →Jun 5, 4:28 pm EDTTimothy S. MorrisDirector2,500——6,250— plan?
Jun 9, 2016 AForm 4 →Jun 10, 2:30 pm EDTHarold PerryDirector1,250——3,750— plan?
Jun 9, 2016 AForm 4 →Jun 10, 2:18 pm EDTDavid J MuellerDirector1,250——5,000— plan?
Jun 9, 2016 AForm 4 →Jun 10, 2:03 pm EDTTimothy S. MorrisDirector1,250——3,750— plan?
Jun 9, 2016 AForm 4 →Jun 10, 1:55 pm EDTWilliam H BrownfieldDirector1,250——5,000— plan?

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 23, 2026 AForm 4 →Jun 25, 4:47 pm EDTHarold PerryDirector3,230——9,024—
Jun 23, 2026 AForm 4 →Jun 25, 4:41 pm EDTDavid J MuellerDirector3,230——10,464—
Jun 23, 2026 AForm 4 →Jun 25, 4:31 pm EDTLora A. GotchevaDirector3,075——5,861—