Expansion Premises Commencement Date. The “Expansion Premises Commencement Date” shall be the same date as the Lease Commencement Date pursuant to the Original Lease. Landlord estimates that the Lease Commencement Date (and, for that matter, the Expansion Premises Commencement Date) will be on or about November 29, 2021.

Expansion Premises Commencement Date. Notwithstanding anything contained in the Existing Lease to the contrary, the defined terms “Expansion Premises A Commencement Date”, “Expansion Premises B Commencement Date” and “Expansion Premises Commencement Date” under the Existing Lease, all shall be amended to mean October 23, 2020.

Expansion Premises Commencement Date. Effective as of the date hereof, all references in the Sublease to the Expansion Premises Commencement Date shall be deemed to be references to May 15, 2020.

The “ROFO Premises Commencement Date” shall be the date that is the later of: # the date that is three (3) days after Tenant’s receipt of notice from Landlord of the expected ROFO Premises Commencement Date and # the date on which Landlord delivers possession of the ROFO Premises to Tenant with all base building systems and structural components serving the ROFO Premises (in each case, which Landlord is required to repair and maintain pursuant to and in accordance with the provisions of the Lease) in good working order and condition, but otherwise in “as-is” condition, broom clean (with all furniture, fixtures, equipment and other personal property removed therefrom), vacant, and free and clear of any occupants; it being agreed that the delivery of the ROFO Premises in such condition shall not detract from or limit Landlord’s repair and maintenance obligations with respect to the Premises (including the ROFO Premises) under the Lease. Prior to the ROFO Premises Commencement Date, Landlord shall provide Tenant with a copy of the surrender plan (or substantial equivalent) of the current occupant of the ROFO Premises and reasonable evidence that the work required thereby has been (or will be) completed prior to the ROFO Premises Commencement Date. It is estimated that the ROFO Premises Commencement Date shall occur on or about October 1, 2021; but in no event shall the ROFO Premises Commencement Date occur prior to August 1, 2021. Landlord shall use diligent efforts to deliver the ROFO Premises to Tenant on or about October 1, 2021, however, the failure of Landlord to deliver the ROFO Premises to Tenant on or before October 1, 2021 shall in no way affect the validity of the Lease, this First Amendment, or the obligations of Tenant thereunder (except that the ROFO Premises Commencement Date shall not occur until the date Landlord delivers the ROFO Premises to Tenant in accordance with this paragraph), and Tenant shall not have any claim against Landlord and Landlord shall have no liability to Tenant by reason thereof. Notwithstanding the foregoing, if the ROFO Premises Commencement Date has not occurred on or before the ROFO Rent Credit Date (as hereinafter defined), then, as Tenant’s sole and exclusive remedy on account thereof, Tenant shall be entitled to a rent credit against Tenant’s obligation to pay Base Rent in respect of the ROFO Premises only equal to one (1) day for each day between the ROFO Rent Credit Date and the ROFO Premises Commencement Date. The “ROFO Rent Credit Date” shall mean December 31, 2021, as such date shall be extended due to any delay caused by an act or omission by Tenant and/or Tenant’s agents, employees or contractors, Landlord’s Force Majeure or any other delay that is beyond Landlord’s reasonable control (it being agreed that, if the existing tenant of the ROFO Premises has not timely vacated the ROFO Premises by the current expiration date of such tenant’s lease, then so long as Landlord is using commercially reasonable efforts to deliver the ROFO Premises to Tenant vacant and free and clear of any occupants, such delay shall be considered to be “beyond Landlord’s reasonable control” for purposes hereof).

Commencement Date; Acceptance of Premises. The “Commencement Date” shall be the date Landlord Delivers the Premises to Tenant. The “Rent Commencement Date” shall be the date that is 30 days after the Commencement Date. The period commencing on the Commencement Date through the day immediately preceding the Rent Commencement Date may be referred to herein as the “Abatement Period.” Upon request of Landlord, Tenant shall execute and deliver a written acknowledgment of the Commencement Date and the expiration date of the Term when such are established in the form of the “Acknowledgement of Commencement Date” attached to this Lease as [Exhibit D]; provided, however, Tenant’s failure to execute and deliver such acknowledgment shall not affect Landlord’s rights hereunder. The “Term” of this Lease shall be the Base Term, as defined above on the first page of this Lease and the Extension Term which Tenant may elect pursuant to [Section 39] hereof.

Commencement Date. The Term of this Lease shall commence on the Commencement Date and shall be for the term specified in Section 1.8 hereof (which includes as set forth in Section 1.8 any partial month at the commencement of the Term if the Term commences other than on the first day of the calendar month).

Commencement Date. Host shall commence the provision of Services on the Commencement Date which shall be either of:

Acceleration of Initial Premises Commencement Date. Notwithstanding anything in Section 2.2 or Section 2.3 to the contrary, but subject to Sublandlord’s rights under Sections 13.3 and 13.4 hereof with respect to the use of the Data Room and the Lab Space, respectively, Subtenant shall have the right, upon not less than ten (10) days’ prior written notice to Sublandlord, to elect to obtain exclusive possession of one or more floors of the Initial Premises (but not less than all of the Initial Premises on a floor) prior to the Initial Premises Commencement Date, and in such event Subtenant may occupy such portion of the Initial Premises for the conduct of business and shall be subject to all of the terms of this Sublease with respect thereto commencing ten (10) days after Sublandlord’s receipt of such notice, except Subtenant shall pay to Sublandlord, # in advance, a pro-rata portion of the monthly Base Rent payable under this Sublease for such floor or floors on the first day of such occupancy (pro-rated for the number of days remaining in such month), and then on the first day of each succeeding calendar month, up to the Initial Premises Commencement Date at the same rate as payable immediately after the Initial Premises Commencement Date, and # in arrears, within thirty (30) days following Sublandlord’s presentation of an invoice therefor, Subtenant’s pro-rata portion of Additional Rent for such floor or floors for the period ending on the Initial Premises Commencement Date.

Acceleration of Initial Premises Commencement Date. Notwithstanding anything in Section 2.2 or Section 2.3 to the contrary, but subject to Sublandlord’s rights under Sections 13.3 and 13.4 hereof with respect to the use of the Data Room and the Lab Space, respectively, Subtenant shall have the right, upon not less than ten (10) days’ prior written notice to Sublandlord, to elect to obtain exclusive possession of one or more floors of the Initial Premises (but not less than all of the Initial Premises on a floor) prior to the Initial Premises Commencement Date, and in such event Subtenant may occupy such portion of the Initial Premises for the conduct of business and shall be subject to all of the terms of this Sublease with respect thereto commencing ten (10) days after Sublandlord’s receipt of such notice, except Subtenant shall pay to Sublandlord, # in advance, a pro-rata portion of the monthly Base Rent payable under this Sublease for such floor or floors on the first day of such occupancy (pro-rated for the number of days remaining in such month), and then on the first day of each succeeding calendar month, up to the Initial Premises Commencement Date at the same rate as payable immediately after the Initial Premises Commencement Date, and # in arrears, within thirty (30) days following Sublandlord’s presentation of an invoice therefor, Subtenant’s pro-rata portion of Additional Rent for such floor or floors for the period ending on the Initial Premises Commencement Date.

Premises F Rent Commencement Date. The “Premises F Rent Commencement Date” shall commence on the Premises F Commencement Date.