Form of Letter of Credit. Within five (5) business days after Master Landlord’s consent to this Sublease, Subtenant shall deliver to Sublandlord, as security for the faithful performance of all Subtenant’s obligations under this Sublease, an irrevocable standby letter of credit (the “Letter of Credit”) in the amount of $324,435.08 for the account of Subtenant and for the benefit of Sublandlord and issued by a bank reasonably acceptable to Sublandlord (the “Issuer”). Provided however, if Subtenant has a cash, or cash equivalent balance exceeding $125,000,000.00 for the fiscal quarter preceding month 36 of the sublease term, the Letter of Credit amount shall be reduced to $216,290.05 at month 36 for the remainder of the Term. Subtenant will provide a copy of such Letter of Credit. Subtenant shall maintain the Letter of Credit in effect until thirty (30) days after the later of # the expiration of the Sublease Term or earlier termination of this Sublease, or # vacation of the Sublease Premises by Subtenant. If the Letter of Credit shall expire prior to said date, Subtenant shall renew the Letter of Credit prior to its expiration or arrange for issuance of a new Letter of Credit in accordance with the terms hereof. If Subtenant fails to give Sublandlord evidence of renewal of the Letter of Credit or issuance of a new Letter of Credit at least ten (10) days prior to the expiration of the Letter of Credit then in effect, Sublandlord shall be entitled to draw down the full amount of the Letter of Credit and the amount so drawn (“Draw Proceeds”), although not a cash security deposit, shall be held and maintained by Sublandlord and may be applied in the same manner as set forth in [Section 4.6.5] below with respect to a Security Deposit.

Form of Letter of Credit. The Letter of Credit shall be irrevocable, unconditional and fully transferable one or more times without cost or expense to Landlord, shall be issued by Silicon Valley Bank or at another domestic bank reasonably acceptable to Landlord, and shall be in a form reasonably acceptable to Landlord. The Letter of Credit shall have an expiration date not less than one (1) year after the date of the Letter of Credit; and the beneficiary of the Letter of Credit shall be Landlord or Landlord’s designee. The Letter of Credit shall also be self-extending with an outside expiration date not earlier than sixty (60) days following the Stated Expiration Date.

Letter of Credit. [Section 20.3.2] of the Lease is hereby deleted in its entirety and is null and void and of no further force or effect and Tenant shall have no right during the Term to reduce the amount of the L-C. For the avoidance of doubt, the amount of the L-C shall remain $585,707.22 following the Early Termination Date.

Letter of Credit. Subject to the terms and conditions of this Agreement, Lender hereby agrees to issue or cause an Affiliate to issue letters of credit for the

LETTER OF CREDIT. The Parties acknowledge that upon execution of this Amendment, Tenant shall terminate the previous letter of credit, in the amount of $250,000, and issue a new letter of credit in the amount of $400,000, pursuant to the amended terms of the Lease.

Letter of Credit. As security for the full, faithful and timely performance of each of Tenant’s obligations under the Lease, Tenant shall deliver to Landlord a Letter of Credit meeting the requirements contained in this Article 24, which issuance shall not be more than thirty (30) days after execution of this Lease.

On the terms and subject to the conditions set forth herein, up to, but not in excess of ten percent (10%) of the Borrowing Base, may be used by Borrower, in addition to the making of Revolving Loans hereunder, for the issuance, prior to the Commitment Expiry Date, by # the L/C Issuer, of letters of credit, guarantees or other agreements or arrangements (each, a “Support Agreement”) to induce an L/C Issuer to issue or increase the amount of, or extend the expiry date of, one or more Letters of Credit and # an L/C Issuer, of one or more Lender Letters of Credit, so long as, in each case:

Letter of Credit. Landlord is currently holding a Letter of Credit in the amount of $8,200,184.00 as collateral for Tenant’s performance of its obligations under the Lease, as amended hereby. No additional letter of credit shall be required in connection with this Amendment.

Upon execution by Subtenant of this Sublease, Subtenant shall furnish to Sublandlord, at Subtenant’s sole cost and expense, a clean, irrevocable and unconditional letter of credit (the “Letter of Credit”) in the amount of $650,900.00 (the “Security Deposit”) drawn in favor of Sublandlord substantially in the form attached hereto as [Exhibit B], which shall be assignable, upon request, by Sublandlord at no additional charge to Sublandlord.

Letter of Credit. Tenant shall satisfy Tenant’s obligations under Section 5.1 by posting with Landlord a Letter of Credit meeting the requirements of this Section 5.2 (the “Letter of Credit”). The Letter of Credit shall be # irrevocable; # issued by Silicon Valley Bank or a financial institution approved by Landlord in Landlord’s sole and reasonable discretion; # in a form permitting partial and multiple drawings; # for multiple terms of one (1) year each in duration, renewed at least sixty (60) days prior to the expiration thereof, the entire term extending until the date which is ninety (90) days after the expiration of the Term, as such Term may be extended pursuant to the provisions of the Lease; and # be in the form attached hereto as [Exhibit I] or otherwise in form and substance reasonably acceptable to the Landlord, in its reasonable discretion. If a partial drawing occurs under the Letter of Credit, Tenant shall, upon demand but not more than five (5) business days after Landlord notifies Tenant of such partial drawing, cause the financial institution to reissue the Letter of Credit in the amount then currently required under the terms of the Lease. In addition, within five (5) business days after the bank that issued the Letter of Credit then held by Landlord enters into any form of regulatory or governmental receivership or other similar regulatory or governmental proceeding, including any receivership instituted or commenced by the Federal Deposit Insurance Corporation (“FDIC”), or is otherwise declared insolvent or downgraded by the FDIC, Tenant shall deliver to Landlord a replacement Letter of Credit in the same form and in the amount then currently required under the terms of the Lease and from a financial institution approved by Landlord in its sole and reasonable discretion. Notwithstanding the foregoing, Landlord shall be entitled to draw down the entire amount of the Letter of Credit, without any notice, at any time on or after the earlier of # the occurrence of an Event of Default by Tenant under the Lease; or # the thirtieth (30th) day preceding the expiration date of the Letter of Credit in the event Tenant is required to and fails to replace the Letter of Credit. If Landlord draws on the Letter of Credit (or Tenant replaces the Letter of Credit with a Security Deposit in the form of cash with Landlord’s approval), then such cash shall be held by Landlord as a Security Deposit until disbursement or application in accordance with the terms of the Lease.