SmartStop Self Storage REIT, Inc. — Director's Dealing 2025

Nov 12, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SmartStop Self Storage REIT, Inc. (SMA)
CIK: 0001585389
Period of Report: 2025-11-11

Reporting Person: Barry James R. (CFO and Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-11	Common Stock	P	600	$33.55	Acquired	3375	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Long-Term Incentive Plan Units	$0		Common Stock (29319)	29319	Direct
Long-Term Incentive Plan Units	$0		Common Stock (24569.12)	24569.12	Direct
Long-Term Incentive Plan Units	$0		Common Stock (19353.28)	19353.28	Direct
Class A-1 Units	$0		Common Stock (30941.5)	30941.5	Direct

Footnotes

F1: Includes shares of Common Stock previously reported as being owned by the Reporting Person, less .83 shares of Common Stock that were redeemed by the Issuer in connection with a fractional share redemption conducted by the Issuer with respect to its outstanding Common Stock as of July 30, 2025.

F2: Represents long-term incentive plan units ("LTIP Units") of SmartStop OP, L.P., the Issuer's operating partnership (the "Operating Partnership"). Vested LTIP Units are convertible into common units of the Operating Partnership ("Common Units"). Common Units are redeemable by the holder for, at the election of the Issuer, shares of the Issuer's Common Stock on a one-for-one basis or the cash value of such shares.

F3: Represents 29,319 LTIP Units previously reported as being owned by the Reporting Person. The LTIP Units vest ratably over four years commencing on the first anniversary of the issuance thereof, subject to the Reporting Person's continued employment or service through each vesting date.

F4: Represents 24,569.12 LTIP Units previously reported as being owned by the Reporting Person. The LTIP Units vest ratably over a four-year period commencing on December 31 of the year of grant, subject to the Reporting Person's continued employment or service through each vesting date.

F5: Represents 19,353.28 LTIP Units previously reported as being owned by the Reporting Person, which number is equal to 200% of the target number of LTIP Units to be issued upon vesting. The actual number of LTIP Units to be issued upon vesting can range from 0% to 100% of the number of LTIP Units reported, based on achievement of specified performance measures.

F6: Represents Class A-1 limited partnership units ("Class A-1 Units") of the Operating Partnership. Class A-1 Units are redeemable by the holder for, at the election of the Issuer, shares of Common Stock of the Issuer on a one-for-one basis or the cash value of such shares.

F7: Represents 30,941.50 Class A-1 Units previously reported as being owned by the Reporting Person.