FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * MARKS MICHAEL E   2. Issuer Name and Ticker or Trading Symbol CALIX, INC [CALX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O RIVERWOOD CAPITAL LLC, 70 WILLOW ROAD, SUITE 100 3. Date of Earliest Transaction (Month/Day/Year) 12/01/2010 (Street) MENLO PARK, CA 94025 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 12/01/2010   S   337,719 D $ 13.2384 (1) 100,000 I See Footnotes (2) (3) Common Stock 12/01/2010   S   15,000 D $ 13.4015 (4) 14,786 I See Footnotes (3) (5) Common Stock               2,266 (6) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MARKS MICHAEL E C/O RIVERWOOD CAPITAL LLC 70 WILLOW ROAD, SUITE 100 MENLO PARK, CA 94025	X

Signatures

/s/ Kelyn Brannon, as Attorney-in-Fact for Michael E. Marks		12/02/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $13.0000 to $13.4550, inclusive. Full information on the number of shares sold at each sale price is available upon request.
(2)	Shares held by Riverwood Capital LLC.
(3)	The manager of Riverwood Capital LLC is Ironwood Management, LLC. The sole member of Ironwood Management, LLC is Michael Marks. The manager of WB Investors, LLC is Michael Marks. Mr. Marks disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
(4)	The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $13.4000 to $13.4300, inclusive. Full information on the number of shares sold at each sale price is available upon request.
(5)	Shares held by WB Investors, LLC.
(6)	Restricted stock units.

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