SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Smith Mark Stephen

(Last)

(First)

(Middle)

15195 PIEDMONT ROAD

(Street)

SARATOGA

95070

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/19/2012

3. Issuer Name and Ticker or Trading Symbol
INFOBLOX INC [ BLOX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Exec VP, Worldwide Field Ops

5. If Amendment, Date of 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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	256,888	D
Common Stock	10,000	I	By spouse

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock option (right to buy)	⁽¹⁾	12/14/2016	Common Stock	133,333	$1.68	D
Stock option (right to buy)	⁽²⁾	09/03/2019	Common Stock	41,666	$2.13	D
Stock option (right to buy)	⁽³⁾	02/23/2020	Common Stock	267,942	$4.53	D
Stock option (right to buy)	⁽⁴⁾	09/14/2021	Common Stock	150,000	$9.12	D
Stock option (right to buy)	⁽⁵⁾	03/14/2016	Common Stock	250	$1.41	I	By spouse
Stock option (right to buy)	⁽⁶⁾	09/13/2016	Common Stock	333	$1.47	I	By spouse
Stock option (right to buy)	⁽⁷⁾	03/15/2017	Common Stock	833	$2.01	I	By spouse
Stock option (right to buy)	⁽⁸⁾	09/19/2017	Common Stock	13,583	$2.49	I	By spouse
Stock option (right to buy)	⁽²⁾	09/03/2019	Common Stock	833	$2.13	I	By spouse
Stock option (right to buy)	⁽³⁾	02/23/2020	Common Stock	3,333	$4.53	I	By spouse

Explanation of Responses:

1. The option was fully vested and exercisable on October 1, 2010.

2. The option vested and was exercisable as to 25% of the total grant amount on September 1, 2010 and the remaining shares underlying the option vest 2.0833% monthly thereafter.

3. The option vested and was exercisable as to 25% of the total grant amount on March 1, 2011 and the remaining shares underlying the option vest 2.0833% monthly thereafter.

4. The option vests and is exercisable as to 40% of the total grant amount on September 15, 2013 and the remaining shares underlying the option vest 1.666% monthly thereafter.

5. The option was fully vested and exercisable on March 1, 2010.

6. The option was fully vested and exercisable on September 1, 2010.

7. The option was fully vested and exercisable on March 1, 2011.

8. The option was fully vested and exercisable on August 1, 2011.

Remarks:

	/s/ Robert Horton as attorney-in-fact for Mark S. Smith	04/19/2012
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.