Scheduled Vesting. The number of Units that have been earned during the Performance Period, as determined by the Committee in accordance with [Exhibit 1], will vest on the Scheduled Vesting Date, so long as your Service has been continuous from the Grant Date to the Scheduled Vesting Date. For these purposes, the “Scheduled Vesting Date” means the date the Committee certifies # the degree to which

Scheduled Vesting. If you remain a member of the Board continuously from the Grant Date specified on the cover page of this Agreement, then the Units will vest in the numbers and on the dates specified in the Vesting Schedule on the cover page of this Agreement.

Accelerated Vesting. Vesting of the Units may be accelerated during the term of the Award at the discretion of the Committee in accordance with [Section 16.2] of the Plan and under the following circumstances:

Reverse Vesting. The Committee in its sole discretion may allow a Participant to exercise unvested Non-ISOs, in which case the Shares then issued shall be Restricted Shares having analogous vesting restrictions to the unvested Non-ISOs.

Vesting; Forfeiture. Except as otherwise provided in this Agreement, the RSUs awarded to a Participant shall vest on the date of the Company’s next annual meeting of stockholders after the date hereof (or the date that is at 50 weeks after the immediately preceding year’s annual meeting, if later) (the “Vesting Date”). If Participant ceases to be a director prior to the Vesting Date, the director shall forfeit the RSUs awarded under this Agreement unless # the Participant dies (in which case the RSUs shall immediately vest), or # the Governance Committee of the Board of Directors in its sole discretion decides to vest in whole or in part the RSUs awarded to the Participant. If the Participant is removed as a director at any time for cause in accordance with the Company’s bylaws, the director shall forfeit the RSUs awarded under this Agreement. An acceleration of vesting shall accelerate the Vesting Date and the payment date accordingly (subject to any applicable deferral election described in Section 6).

This option will become exercisable (“vest”) as to 25% of the original number of Shares on the first anniversary of the Vesting Commencement Date (as defined below) and as to an additional 6.25% of the original number of Shares at the end of each successive quarter following the first anniversary of the Vesting Commencement Date until the fourth anniversary of the Vesting Commencement Date. On the fourth anniversary of the Vesting Commencement Date, this option will be exercisable as to all Shares. For purposes of this Agreement, “Vesting Commencement Date” shall mean ​.

Vesting Criteria. To receive the 20​ Bonus, you must satisfy both of the following criteria (the “Vesting Criteria”):

Vesting Acceleration. Effective as of November 18, 2022, Participants who cease to be Employees due to the sale of Golden Triangle Storage, Inc. will be deemed to be fully vested in their Accounts for all purposes hereunder.

Vesting Schedule. Except and to the extent provided in paragraphs 7(c) and (d), nothing in this paragraph 7 shall alter the vesting schedule prescribed by paragraph 5.

Vesting Conditions. The number of PBRSUs earned and vested with respect to the Performance Period (as defined in [Exhibit A]) shall be determined based on the extent to which the performance criteria set forth in [Exhibit A] hereto (the “Performance Criteria”) are attained. Except as otherwise provided in Section A.2(b) and Section A.2(c) below, if # the Committee certifies in writing the extent to which the applicable Performance Criteria in the Performance Period are attained, # you remain continuously employed by the Company or an Affiliate through the date on which the Committee certifies such performance (the “Certification Date”), and # you comply with the provisions regarding “Prohibited Conduct” set forth on Annex A to this Agreement, you will become vested in the number of PBRSUs earned pursuant to [Exhibit A] as of the Certification Date.