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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1406666	Calix Inc	CALX	Communications Services, Nec (4899)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1211436	J Donald Listwin	C/O Calix, Inc. 1035 N. Mcdowell Blvd. Petaluma CA 94954		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-05-11	60,000	$10.15	407,464	No	4	P	Direct
Common Stock	Acquisiton	2010-05-12	40,000	$10.41	447,464	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Footnotes

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $10.0400 to $10.1985, inclusive. Full information on the number of shares purchased at each purchase price is available upon request.
Consists of an aggregate of 25,598 restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU upon vesting. 11,666 of the RSUs will vest on the first day that the Issuer's trading window opens for employees that is more than 180 days following the effective date of the Issuer's initial public offering (the "First Vesting Date"), and 11,666 of the RSUs will vest on the first day the trading window opens for employees that is more than 180 days after the First Vesting Date. The remaining 2,266 RSUs will vest on January 26, 2011.
The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $10.1200 to $10.6644, inclusive. Full information on the number of shares purchased at each purchase price is available upon request.