On the Seventh Amendment Date, Borrower shall pay to the Lender an extension fee equal to 0.35% of the outstanding principal balance of the Loans as of the Seventh Amendment Date (the “Seventh Amendment Extension Fee”).

Agent shall have received, in immediately available funds, the Structuring Fee and the Ninth Amendment Extension Fee, in each case as defined in the Fee Letter.

#​ shall have paid to ​ the Extension Fee no later than the date the related Extension Period is commenced;

Extension Right. Tenant shall have 1 right (the “Extension Right”) to extend the term of this Lease for 3 years (the “Extension Term”) on the same terms and conditions as this Lease (other than with respect to Base Rent and the Work Letter) by giving Landlord written notice of its election to exercise each Extension Right at least 9 months prior to the expiration of the Base Term of the Lease.

Extension Right. Section 39 of the Lease is hereby deleted and replaced in its entirety with the following:

Extension Request. The Borrower shall provide the applicable Extension Request at least three (3) Business Days prior to the date on which ​ under the Existing Term Loan Tranche or Existing Revolver Tranche, as applicable, are requested to respond, and shall agree to such procedures, if any, as may be established by, or acceptable to, the Administrative Agent, in each case acting reasonably to accomplish the purposes of this ‎Section 2.16. No Lender shall have any obligation to agree to have any of its Term Loans of any Existing Term Loan Tranche amended into Extending Term Loans or any of its Revolving Credit Commitments amended into Extending Revolving Credit Commitments, as applicable, pursuant to any Extension Request. Any Lender holding a Loan under an Existing Term Loan Tranche (each, an “Extending Term Lender”) wishing to have all or a portion of its Term Loans under the Existing Term Loan Tranche subject to such Extension Request amended into Extending Term Loans and any Revolving Credit Lender (each, an “Extending Revolving Credit Lender”) wishing to have all or a portion of its Revolving Credit Commitments under the Existing Revolver Tranche subject to such Extension Request amended into Extending Revolving Credit Commitments, as applicable, shall notify the Administrative Agent (each, an “Extension Election”) on or prior to the date specified in such Extension Request of the amount of its Term Loans under the Existing Term Loan Tranche or Revolving Credit Commitments under the Existing Revolver Tranche, as applicable, which it has elected to request be amended into Extending Term Loans or Extending Revolving Credit Commitments, as applicable (subject to any minimum denomination requirements imposed by the Administrative Agent). In the event that the aggregate principal amount of Term Loans under the Existing Term Loan Tranche or Revolving Credit Commitments under the Existing Revolver Tranche, as applicable, in respect of which applicable Term ​ or Revolving Credit ​, as the case may be, shall have accepted the relevant Extension Request exceeds the amount of Extending Term Loans or Extending Revolving Credit Commitments, as applicable, requested to be extended pursuant to the Extension Request, Term Loans or Revolving Credit Commitments, as applicable, subject to Extension Elections shall be amended to Extending Term Loans or Revolving Credit Commitments, as applicable, on a pro rata basis (subject to rounding by the Administrative Agent, which shall be conclusive) based on the aggregate principal amount of Term Loans or Revolving Credit Commitments, as applicable, included in each such Extension Election.

Extension Amendments. The Lenders hereby irrevocably authorize the Administrative ​ to enter into amendments to this Agreement and the other Loan Documents (an “Extension Amendment”) as may be necessary or appropriate in order to establish new tranches in respect of Extended Loans and Extended Commitments and such amendments as permitted by [clause (c)] below as may be necessary or appropriate in the reasonable opinion of the ​, in consultation with the Administrative ​, in connection with the establishment of such new tranches of Loans. This Section 2.18 shall supersede any provisions in [Section 2.15 or 11.01] to the contrary. Except as otherwise set forth in an Extension Offer, there will be no conditions to the effectiveness of an Extension Amendment. Extensions will not constitute a voluntary or mandatory payment or prepayment for purposes of this Agreement.

Extension; Waiver. Subject to Section 7.01, at any time prior to the Effective Time of the Acquisition, the parties may # extend the time for the performance of any of the obligations or other acts of the other parties, # waive any inaccuracies in the representations and warranties contained in this Agreement or in any document delivered pursuant to this Agreement, or # waive compliance with any of the agreements or conditions contained in this Agreement. Any agreement on the part of a party to any such extension or waiver shall be valid only if set forth in an instrument in writing signed on behalf of such party. The failure of any party to this Agreement to assert any of its rights under this Agreement or otherwise shall not constitute a waiver of such rights.

Extension Terms. All terms and conditions of this Lease shall be applicable during the Extension Period(s) except that the amount of Base Rent charged for the Renewal Period shall be the then “Prevailing Market Rent”, which shall be the base or fixed rent for comparable office space in the Seaport District of the City of Boston being leased to renewal tenants in comparable buildings, taking into account all then-relevant factors, including such market concessions, if any, as are then being offered by landlords to renewal tenants leasing comparable office space in comparable buildings, including the existence or nonexistence of any rent abatement, the amount of any tenant improvement allowance, the amount of any brokerage commissions, the net or gross basis of the comparable leases as opposed to the net lease structure of this Lease. If within thirty (30) days following delivery of an Extension Election Notice, Landlord and Tenant have not mutually agreed on the Prevailing Market Rent for the applicable Extension Period, then the parties shall use the following method to determine the Prevailing Market Rent (the “Baseball Arbitration Method”): within ten (10) business days after the expiration of such thirty-day period, an impartial, senior broker in a Boston, Massachusetts leasing brokerage firm (the “Baseball Arbitrator”) shall be selected jointly by Landlord and Tenant. If Landlord and Tenant cannot not agree upon the Baseball Arbitrator, then the same shall be designated by the then president of the Commercial Brokers Association of the Greater Boston Real Estate Board (or comparable organization reasonably satisfactory to the parties, if no longer existing), who may not select himself or herself or a broker at the same firm with which he or she is then affiliated. The Baseball Arbitrator selected by the parties or designated as aforesaid shall have at least ten (10) years’ experience in the leasing of first-class office space in downtown Boston (including the Seaport and Financial District submarkets) and shall not have worked for either party in the five (5) years prior to his or her selection. Landlord and Tenant shall each submit to the Baseball Arbitrator and to the other their respective proposed Prevailing Market Rent for the Premises within ten (10) days after the designation of such Baseball Arbitrator. The Baseball Arbitrator may not select any other rental value for the Premises, other than one submitted by Landlord or Tenant. The determination of the Baseball Arbitrator so-selected or designated shall be binding upon Landlord and Tenant shall serve as the basis for the determination of the annual Base Rent payable for the respective Extension Period. Each party shall pay one-half of the cost of the Baseball Arbitrator. Each Baseball Arbitrator shall thereupon make his or her determination of the Prevailing Market Rent within twenty (20) business days after the appointment of such Baseball Arbitrator.

Each Lender may, in its sole discretion, agree to any Extension Request. Each Lender that agrees to an Extension Request by the date falling 15 days before the relevant anniversary of the date of this Agreement will extend its Commitment for a further period of one year or two years, as set out in the relevant Extension Request, from the then current Final Maturity Date in respect of that Lender's Commitment and the Final Maturity Date with respect to the Commitment of that Lender will be extended accordingly.