Waiver Agreement dated January 27, 2020 by and between Silicon Valley Bank and Calix, Inc

THIS WAIVER AGREEMENT (this “Agreement”) is entered into this 27^th day of January, 2020, by and between SILICON VALLEY BANK, a California corporation (“Bank”), and CALIX, INC., a Delaware corporation (“Borrower”).

A.Bank and Borrower have entered into that certain Loan and Security Agreement dated as of August 7, 2017 (as the same may from time to time be amended, modified, supplemented or restated, the “Loan Agreement”).

B.    Bank has extended credit to Borrower for the purposes permitted in the Loan Agreement.

C.    Borrower is currently in default of Section 6.9(a) of the Loan Agreement for failing to comply with the Adjusted Quick Ratio financial covenant during the fiscal quarter ended December 31, 2019 (the “Existing Event of Default”).

D.    Borrower has requested that Bank waive the Existing Event of Default.

E.    Bank has agreed to so waive the Existing Event of Default in accordance with the terms, subject to the conditions and in reliance upon the representations and warranties set forth below.

NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration, the receipt and adequacy of which is hereby acknowledged, and intending to be legally bound, the parties hereto agree as follows:

1.Definitions. Capitalized terms used but not defined in this Agreement shall have the meanings given to them in the Loan Agreement.

2.    Waiver of Existing Event of Default. Borrower acknowledges and agrees that unless the Existing Event of Default is waived by Bank, the Existing Event of Default would constitute an Event of Default under the Loan Documents. The Bank hereby waives, effective as of December 31, 2019, the Existing Event of Default. Bank’s agreement to waive the Existing Event of Default shall in no way obligate Bank to make any other modifications to the Loan Agreement or to waive Borrower’s compliance with any other terms of the Loan Documents, and shall not limit or impair Bank’s right to demand strict performance of all other terms and covenants as of any date. The waiver set forth above shall not be deemed or otherwise construed to constitute a waiver of any other provisions of the Loan Agreement in connection with any other transaction.

3.    Limitation of Waiver.

3.1    The waiver set forth in Section 2, above, is effective for the purposes set forth herein and shall be limited precisely as written and shall not be deemed to (1) be a consent to any amendment, waiver or modification of any other term or condition of any Loan Document, or (1) otherwise prejudice any right or remedy which Bank may now have or may have in the future under or in connection with any Loan Document.

3.2    This Agreement shall be construed in connection with and as part of the Loan Documents and all terms, conditions, representations, warranties, covenants and agreements set forth in the Loan Documents, except as herein amended, are hereby ratified and confirmed and shall remain in full force and effect.

3.3    In addition to those Events of Default specifically enumerated in the Loan Documents, the failure to comply with the terms of any covenant or agreement contained herein shall constitute an Event of Default and shall entitle Bank to exercise all rights and remedies provided to Bank under the terms of any of the other Loan Documents as a result of the occurrence of the same.

4.    Representations and Warranties. To induce Bank to enter into this Agreement, Borrower hereby represents and warrants to Bank as follows:

4.1    Immediately after giving effect to this Agreement (1) the representations and warranties contained in the Loan Documents are true, accurate and complete in all material respects as of the date hereof (except to the extent such representations and warranties relate to an earlier date, in which case they are true and correct as of such date), and (1) no Event of Default has occurred and is continuing;

4.2    Borrower has the power and authority to execute and deliver this Agreement and to perform its obligations under the Loan Agreement;

4.3    The organizational documents of Borrower delivered to Bank on the Effective Date remain true, accurate and complete and have not been amended, supplemented or restated and are and continue to be in full force and effect;

4.4    The execution and delivery by Borrower of this Agreement and the performance by Borrower of its obligations under the Loan Agreement have been duly authorized;

4.5    The execution and delivery by Borrower of this Agreement and the performance by Borrower of its obligations under the Loan Agreement do not and will not contravene (1) any material law or regulation binding on or affecting Borrower, (1) any contractual restriction with a Person binding on Borrower in any material respects, (1) in any material respects, any order, judgment or decree of any court or other governmental or public body or authority, or subdivision thereof, binding on Borrower, or (1) the organizational documents of Borrower;

4.6    The execution and delivery by Borrower of this Agreement and the performance by Borrower of its obligations under the Loan Agreement do not require any order, consent, approval, license, authorization or validation of, or filing, recording or registration with, or exemption by any governmental or public body or authority, or subdivision thereof, binding on Borrower, except as already has been obtained or made; and

4.7    This Agreement has been duly executed and delivered by Borrower and is the binding obligation of Borrower, enforceable against Borrower in accordance with its terms, except as such enforceability may be limited by bankruptcy, insolvency, reorganization, liquidation, moratorium or other similar laws of general application and equitable principles relating to or affecting creditors’ rights.

5.    Integration. This Agreement and the Loan Documents represent the entire agreement about this subject matter and supersede prior negotiations or agreements. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Agreement and the Loan Documents merge into this Agreement and the Loan Documents.

6.    Counterparts. This Agreement may be executed in any number of counterparts and all of such counterparts taken together shall be deemed to constitute one and the same instrument.

7.    Effectiveness. This Agreement shall be deemed effective upon (1) the due execution and delivery to Bank of this Agreement by each party hereto, and (b) payment of Bank’s legal fees and expenses in connection with the negotiation and preparation of this Agreement.

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed and delivered as of the date first written above.

CALIX, INC.

By: /s/ Cory Sindelar

Name: Cory Sindelar

Title: Chief Financial Officer

SILICON VALLEY BANK

By: /s/ Stephen Chang

Name: Stephen Chang