SEC FORM 4

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

1. Name and Address of Reporting Person^*

Mulloy Corey

(Last)

(First)

(Middle)

C/O HIGHLAND CAPITAL PARTERS

ONE BROADWAY, 16TH FLOOR

(Street)

CAMBRIDGE

02142

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Gigamon Inc. [ GIMO ]

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

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
04/28/2015

4. 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 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/28/2015		J⁽¹⁾		157	A	$0	314	D
Common Stock	04/28/2015		J⁽²⁾		922,198	D	$0	1,705,762	I	See Footnote⁽²⁾
Common Stock	04/28/2015		J⁽³⁾		223,467	D	$0	413,338	I	See Footnote⁽³⁾
Common Stock	04/28/2015		J⁽⁴⁾		325,438	D	$0	601,952	I	See Footnote⁽⁴⁾
Common Stock	04/28/2015		J⁽⁵⁾		28,897	D	$0	53,448	I	See Footnote⁽⁵⁾

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. This transaction represents a pro rata distribution, and not a purchase or sale of securities, by Highland Capital Partners VII Limited Partnership ("HCP VII"), Highland Capital Partners VII-B Limited Partnership ("HCP VII-B"), Highland Capital Partners VII-C Limited Partnership ("HCP VII-C"), Highland Entrepreneurs' Fund VII Limited Partnership ("HEF VII," together with HCP VII, HCP VII-B and HCP VII-C, the "Investing Entities"), and Highland Management Partnership VII Limited Partnership ("HMP VII LP"), the general partner of the Investing Entities and of which the Reporting Person is an authorized manager, to their respective limited partners without consideration.

2. Effective April 28, 2015, HCP VII, a venture capital partnership, distributed in-kind, without consideration, a total of 922,198 shares of Common Stock of the Issuer to its limited partners, including HMP VII LP, the general partner of HCP VII, and to the limited partners of HMP VII LP. The remaining securities are held by HCP VII. The Reporting Person is an authorized manager of Highland Management Partners VII, LLC ("HMP VII LLC"), which is the general partner of HMP VII LP. Each of the Reporting Person, HMP VII LP and HMP VII LLC disclaims beneficial ownership of all shares held by HCP VII except to the extent, if any, of such entity's pecuniary interest therein.

3. Effective April 28, 2015, HCP VII-B, a venture capital partnership, distributed in-kind, without consideration, a total of 223,467 shares of Common Stock of the Issuer to its limited partners, including HMP VII LP, the general partner of HCP VII-B, and to the limited partners of HMP VII LP. The remaining securities are held by HCP VII-B. The Reporting Person is an authorized manager of HMP VII LLC, which is the general partner of HMP VII LP. Each of the Reporting Person, HMP VII LP and HMP VII LLC disclaims beneficial ownership of all shares held by HCP VII-B except to the extent, if any, of such entity's pecuniary interest therein.

4. Effective April 28, 2015, HCP VII-C, a venture capital partnership, distributed in-kind, without consideration, a total of 325,438 shares of Common Stock of the Issuer to its limited partners, including HMP VII LP, the general partner of HCP VII-C, and to the limited partners of HMP VII LP. The remaining securities are held by HCP VII-C. The Reporting Person is an authorized manager of HMP VII LLC, which is the general partner of HMP VII LP. Each of the Reporting Person, HMP VII LP and HMP VII LLC disclaims beneficial ownership of all shares held by HCP VII-C except to the extent, if any, of such entity's pecuniary interest therein.

5. Effective April 28, 2015, HEF VII, a venture capital partnership, distributed in-kind, without consideration, a total of 28,897 shares of Common Stock of the Issuer to its limited partners, including HMP VII LP, the general partner of HEF VII, and to the limited partners of HMP VII LP. The remaining securities are held by HEF VII. The Reporting Person is an authorized manager of HMP VII LLC, which is the general partner of HMP VII LP. Each of the Reporting Person, HMP VII LP and HMP VII LLC disclaims beneficial ownership of all shares held by HEF VII except to the extent, if any, of such entity's pecuniary interest therein.

Remarks:

	By: /s/ Corey Mulloy	04/30/2015
	** 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 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).
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