Latest filingSep 17, 2026Most recent Form 4
SMA
SmartStop Self Storage REIT, Inc.
NYSEFinancialsReal Estate Investment Trusts
Insider activity for last month from 08/18 to 09/18. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$1.36M1 sells
Net open-market-$1.36M1 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period1transactions
- S · Open-market sells · dominant1 · 100%
Activity by reported role
A joint filing can contribute to multiple roles1transactions
- Director · dominant1 · 100%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (1)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeMueller David JCommon Stock · Direct
4,215Sep 16, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 18 → Sep 18
LessMore
Top insiders
By absolute net value across the selected period- MJ-$13.6k
Recent filing activity
Most recent 1 transactions · color = transaction code- SSell09/17-$1.36MSEC
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
SMA transaction history
Filters apply within this company and selected period by defaultLatest insider transactions
Form 4 filings from last month. Click any column to sort; click it again to flip the order.
SmartStop Self Storage REIT, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at SmartStop Self Storage REIT, Inc.?
Mueller David J.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Mueller David J reported a sale on Sep 16, 2026 valued at $1.36M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $13,621.25. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.