Filing Details

_____________________ | OMB APPROVAL | |_____________________| |OMB NUMBER: | UNITED STATES |EXPIRES: | SECURITIES AND EXCHANGE COMMISSION | JUNE 30, 2012 | Washington, D.C. 20549 |ESTIMATED AVERAGE | |BURDEN HOURS | |PER RESPONSE ...11 | SCHEDULE 13G _____________________| Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Calix, Inc. (CALX) --------------------------------------------- (Name of Issuer) Common Stock ------------------------------------------------- (Title of Class of Securities) 13100M509 ---------------------------------------------------- (CUSIP Number) December 31, 2017 ------------------------------------------------------------------------------ (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). ------------------------------------------------------------------------------ CUSIP No. 13100M509 SCHEDULE 13G ------------------------------------------------------------------------------ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) Alyeska Investment Group, L.P. ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions): (a) [ ] (b) [ ] ------------------------------------------------------------------------------ (3) SEC USE ONLY ------------------------------------------------------------------------------ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------ (5) SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER OWNED BY 0 EACH REPORTING ------------------------------------------- PERSON WITH (7) SOLE DISPOSITIVE POWER 0 ------------------------------------------- (8) SHARED DISPOSITIVE POWER 0 ------------------------------------------------------------------------------ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------------------------------------------------------------------------ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ------------------------------------------------------------------------------ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ------------------------------------------------------------------------------ (12) TYPE OF REPORTING PERSON (See Instructions) IA ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ CUSIP No. 13100M509 SCHEDULE 13G ------------------------------------------------------------------------------ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) Alyeska Fund GP, LLC ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions): (a) [ ] (b) [ ] ------------------------------------------------------------------------------ (3) SEC USE ONLY ------------------------------------------------------------------------------ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------ (5) SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER OWNED BY 0 EACH REPORTING ------------------------------------------- PERSON WITH (7) SOLE DISPOSITIVE POWER 0 ------------------------------------------- (8) SHARED DISPOSITIVE POWER 0 ------------------------------------------------------------------------------ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------------------------------------------------------------------------ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ------------------------------------------------------------------------------ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ------------------------------------------------------------------------------ (12) TYPE OF REPORTING PERSON (See Instructions) OO ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ CUSIP No. 13100M509 SCHEDULE 13G ------------------------------------------------------------------------------ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) Alyeska Fund 2 GP, LLC ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions): (a) [ ] (b) [ ] ------------------------------------------------------------------------------ (3) SEC USE ONLY ------------------------------------------------------------------------------ (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------ (5) SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER OWNED BY 0 EACH REPORTING ------------------------------------------- PERSON WITH (7) SOLE DISPOSITIVE POWER 0 ------------------------------------------- (8) SHARED DISPOSITIVE POWER 0 ------------------------------------------------------------------------------ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------------------------------------------------------------------------ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ------------------------------------------------------------------------------ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ------------------------------------------------------------------------------ (12) TYPE OF REPORTING PERSON (See Instructions) OO ------------------------------------------------------------------------------ ------------------------------------------------------------------------------- CUSIP No. 13100M509 SCHEDULE 13G ------------------------------------------------------------------------------ (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (entities only) Anand Parekh ------------------------------------------------------------------------------ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions): (a) [ ] (b) [ ] ------------------------------------------------------------------------------ (3) SEC USE ONLY ------------------------------------------------------------------------------ (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------ (5) SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER OWNED BY 0 EACH REPORTING ------------------------------------------- PERSON WITH (7) SOLE DISPOSITIVE POWER 0 ------------------------------------------- (8) SHARED DISPOSITIVE POWER 0 ------------------------------------------------------------------------------ (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 ------------------------------------------------------------------------------ (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ------------------------------------------------------------------------------ (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0% ------------------------------------------------------------------------------ (12) TYPE OF REPORTING PERSON (See Instructions) IN ------------------------------------------------------------------------------

CUSIP NO. 13100M509 SCHEDULE 13G Item 1(a). Name of Issuer: Calix, Inc. Item 1(b). Address of Issuer's Principal Executive Offices: 1035 N. McDowell Blvd. Petaluma, CA 94954 Item 2(a). Name of Persons Filing: (i) Alyeska Investment Group, L.P. (ii) Alyeska Fund GP, LLC (iii) Alyeska Fund 2 GP, LLC (iv) Anand ParekhItem 2(b). Address of Principal Business Office or, if None, Residence: (i) 77 West Wacker Drive, 7th Floor Chicago, IL 60601 (ii) 77 West Wacker Drive, 7th Floor Chicago, IL 60601 (iii) 77 West Wacker Drive, 7th Floor Chicago, IL 60601 (iv) 77 West Wacker Drive, 7th Floor Chicago, IL 60601 Item 2(c). Citizenship: (i) Alyeska Investment Group, L.P.- Delaware (ii) Alyeska Fund GP, LLC- Delaware (iii) Alyeska Fund 2 GP, LLC- Delaware (iv) Anand Parekh- United States of AmericaItem 2(d). Title of Class of Securities: Common Stock Item 2(e). CUSIP Number: 13100M509 Item 3. If This Statement is Filed Pursuant to Sections 240.13d-1(b) or 240.13d-2(b), Check Whether the Person Filing is a: (a) Alyeska Investment Group, L.P., a limited partnership organized under the laws of the State of Delaware, is a registered investment adviser under Section 203 of the Investment Advisers Act of 1940, as amended, and is reporting in accordance with 240.13d-1(b)(1)(ii)(E). (b) Alyeska Fund GP, LLC, a limited liability company organized under the laws of the State of Delaware, serves as the General Partner and control person of Alyeska Master Fund, L.P., and is reporting in accordance with 240.13d-1(b)(1)(ii)(G). (c) Alyeska Fund 2 GP, LLC, a limited liability company organized under the laws of the State of Delaware, serves as the General Partner and control person of Alyeska Master Fund 2, L.P., and is reporting in accordance with 240.13d-1(b)(1)(ii)(G). (d) Anand Parekh is the Chief Executive Officer and control person of Alyeska Investment Group, L.P., and is reporting in accordance with 240.13d-1(b)(1)(ii)(G).CUSIP NO. 13100M509 SCHEDULE 13G Exhibit A Agreement The undersigned agree that the statement to which this exhibit is appended is filed on behalf of each of them. Dated: February 14, 2018 Alyeska Investment Group, L.P. By: /s/ Jason Bragg ------------------------------- Name: Jason Bragg Title: Chief Financial Officer and Chief Compliance Officer Alyeska Fund GP, LLC By: /s/ Jason Bragg ------------------------------- Name: Jason Bragg Title: Chief Financial Officer and Chief Compliance Officer Alyeska Fund 2 GP, LLC By: /s/ Jason Bragg ------------------------------- Name: Jason Bragg Title: Chief Financial Officer and Chief Compliance Officer Anand Parekh By: /s/ Anand Parekh ------------------------------- Name: Anand Parekh Individually