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

Mar 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SmartStop Self Storage REIT, Inc. (N/A)
CIK: 0001585389
Period of Report: 2025-03-13

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-13	Long-Term Incentive Plan Units	$0	A	3793.63	Acquired		Class A Common Stock (3793.63)	Direct
2025-03-17	Long-Term Incentive Plan Units	$0	A	22625	Acquired		Class A Common Stock (22625)	Direct
2025-03-17	Long-Term Incentive Plan Units	$0	A	22288	Acquired		Class A Common Stock (22288)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	11103.31	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Class A-1 Units	$0		Class A Common Stock (123766)	123766	Direct

Footnotes

F1: Represents 11,103.31 shares of Class A Common Stock previously reported as being owned by the Reporting Person.

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

F3: Represents LTIP Units previously reported as being owned by the Reporting Person, which LTIP Units were subject to vesting based on the achievement of specified performance measures. Such LTIP Units were reported at 200% of the target number of LTIP Units to be issued upon vesting, or 7,587.25 LTIP Units, on February 4, 2022. The actual number of LTIP Units to be issued upon vesting could range from 0% to 100% of the number of LTIP Units reported based on the actual performance measure achieved. On March 13, 2025, the Compensation Committee of the Issuer's Board of Directors determined that a performance measure had been achieved such that 50% of the number of LTIP Units previously reported, or 3,793.63 LTIP Units, were earned.

F4: Excludes 3,793.62 LTIP Units previously reported as being owned by the Reporting Person that did not vest, as described in Footnote 3.

F5: Represents 22,625 LTIP Units issued to the Reporting Person pursuant to the Issuer's incentive plan, which LTIP Units vest ratably over four years commencing on December 31, 2025, subject to the Reporting Person's continued employment or service through each vesting date.

F6: Represents 22,288 LTIP Units issued to the Reporting Person pursuant to the Issuer's incentive plan, 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. Assuming the achievement of the specified performance measures, the LTIP Units, as adjusted, will vest no later than March 31, 2028.

F7: 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 Class A Common Stock of the Issuer on a one-for-one basis or the cash value of such shares.

F8: Represents 123,766 Class A-1 Units owned by SOH previously reported as being owned by the Reporting Person.