Edgar Filing: INTEGRATED DEVICE TECHNOLOGY INC

sc13da306297107_10312013.htm

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO

§ 240.13d-2(a)

(Amendment No. 3)1

Integrated Device Technology, Inc.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

458118106

(CUSIP Number)

JEFFREY C. SMITH

STARBOARD VALUE LP

830 Third Avenue, 3rd Floor

New York, New York 10022

(212) 845-7977

STEVE WOLOSKY, ESQ.

OLSHAN FROME WOLOSKY LLP

Park Avenue Tower

65 East 55th Street

New York, New York 10022

(212) 451-2300

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

October 31, 2013

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box ¨.

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7 for other parties to whom copies are to be sent.

_______________

1 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 disclosures provided in a prior cover page.

The information required on 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. 458118106

1	NAME OF REPORTING PERSON STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS WC
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION CAYMAN ISLANDS
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 7,603,224
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 7,603,224
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,603,224
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.1%
14	TYPE OF REPORTING PERSON CO

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON STARBOARD VALUE AND OPPORTUNITY S LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS WC
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 1,907,974
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 1,907,974
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,907,974
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 1.3%
14	TYPE OF REPORTING PERSON OO

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON STARBOARD VALUE LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 12,500,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 12,500,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON PN

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON STARBOARD VALUE GP LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 12,500,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 12,500,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON OO

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON STARBOARD PRINCIPAL CO LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 12,500,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 12,500,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON PN

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON STARBOARD PRINCIPAL CO GP LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 12,500,000
	8	SHARED VOTING POWER - 0 -
	9	SOLE DISPOSITIVE POWER 12,500,000
	10	SHARED DISPOSITIVE POWER - 0 -
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON OO

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON JEFFREY C. SMITH
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER - 0 -
	8	SHARED VOTING POWER 12,500,000
	9	SOLE DISPOSITIVE POWER - 0 -
	10	SHARED DISPOSITIVE POWER 12,500,000
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON IN

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON MARK R. MITCHELL
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER - 0 -
	8	SHARED VOTING POWER 12,500,000
	9	SOLE DISPOSITIVE POWER - 0 -
	10	SHARED DISPOSITIVE POWER 12,500,000
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,500,000
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.3%
14	TYPE OF REPORTING PERSON IN

CUSIP NO. 458118106

1	NAME OF REPORTING PERSON PETER A. FELD
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	SOURCE OF FUNDS OO
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)		¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	7	SOLE VOTING POWER 34,167
	8	SHARED VOTING POWER 12,500,000
	9	SOLE DISPOSITIVE POWER 34,167
	10	SHARED DISPOSITIVE POWER 12,500,000
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,534,167
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES		o
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.4%
14	TYPE OF REPORTING PERSON IN

CUSIP NO. 458118106

The following constitutes Amendment No. 3 to the Schedule 13D filed by the undersigned (“Amendment No. 3”). This Amendment No. 3 amends the Schedule 13D as specifically set forth herein.

Item 2.

Identity and Background.

Item 2 is hereby amended and restated to read as follows:

(a) This statement is filed by:

(i)

Starboard Value and Opportunity Master Fund Ltd, a Cayman Islands exempted company (“Starboard V&O Fund”), with respect to the Shares directly and beneficially owned by it;

(ii)

Starboard Value and Opportunity S LLC, a Delaware limited liability company (“Starboard S LLC”), with respect to the Shares directly and beneficially owned by it;

(iii)

Starboard Value LP (“Starboard Value LP”), as the investment manager of Starboard V&O Fund and of a certain managed account (the “Starboard Value LP Account”) and the manager of Starboard S LLC;

(iv)

Starboard Value GP LLC (“Starboard Value GP”), as the general partner of Starboard Value LP;

(v)

Starboard Principal Co LP (“Principal Co”), as a member of Starboard Value GP;

(vi)

Starboard Principal Co GP LLC (“Principal GP”), as the general partner of Principal Co;

(vii)

Jeffrey C. Smith, as a member of Principal GP and as a member of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP;

(viii)

Mark R. Mitchell, as a member of Principal GP and as a member of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP; and

(ix)

Peter A. Feld, as a member of Principal GP and as a member of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP.

Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.” Each of the Reporting Persons is party to that certain Joint Filing Agreement, as further described in Item 6 of the Schedule 13D. Accordingly, the Reporting Persons are hereby filing a joint Schedule 13D.

(b) The address of the principal office of each of Starboard S LLC, Starboard Value LP, Starboard Value GP, Principal Co, Principal GP, and Messrs. Smith, Mitchell and Feld is 830 Third Avenue, 3rd Floor, New York, New York 10022. The address of the principal office of Starboard V&O Fund is 89 Nexus Way, Camana Bay, PO Box 31106, Grand Cayman KY1-1205, Cayman Islands. The officers and directors of Starboard V&O Fund and their principal occupations and business addresses are set forth on Schedule A to the Schedule 13D and are incorporated by reference in this Item 2.

CUSIP NO. 458118106

(c) The principal business of Starboard V&O Fund is serving as a private investment fund. Starboard V&O Fund has been formed for the purpose of making equity investments and, on occasion, taking an active role in the management of portfolio companies in order to enhance shareholder value. Starboard S LLC has been formed for the purpose of investing in securities and engaging in all related activities and transactions. Starboard Value LP provides investment advisory and management services and acts as the investment manager of Starboard V&O Fund and the Starboard Value LP Account and the manager of Starboard S LLC. The principal business of Starboard Value GP is providing a full range of investment advisory, pension advisory and management services and serving as the general partner of Starboard Value LP. The principal business of Principal Co is providing investment advisory and management services. Principal Co is a member of Starboard Value GP. Principal GP serves as the general partner of Principal Co. Messrs. Smith, Mitchell and Feld serve as members of Principal GP and the members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP.

(d) No Reporting Person, nor any person listed on Schedule A to the Schedule 13D, has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

(e) No Reporting Person, nor any person listed on Schedule A to the Schedule 13D, has, during the last five years, been party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f) Messrs. Smith, Mitchell and Feld are citizens of the United States of America. The citizenship of the persons listed on Schedule A to the Schedule 13D is set forth therein.

Item 3.

Source and Amount of Funds or Other Consideration.

Item 3 is hereby amended and restated to read as follows:

The Shares purchased by each of Starboard V&O Fund and Starboard S LLC and held in the Starboard Value LP Account were purchased with working capital (which may, at any given time, include margin loans made by brokerage firms in the ordinary course of business) in open market purchases. The aggregate purchase price of the 7,603,224 Shares beneficially owned by Starboard V&O Fund is approximately $48,890,693, excluding brokerage commissions. The aggregate purchase price of the 1,907,974 Shares beneficially owned by Starboard S LLC is approximately $12,442,641, excluding brokerage commissions. The aggregate purchase price of the 2,988,802 Shares held in the Starboard Value LP Account is approximately $19,502,880, excluding brokerage commissions.

The 34,167 Shares owned personally by Peter A. Feld represent (i) 8,834 vested restricted stock units (RSUs) and (ii) 25,333 Shares underlying certain options exercisable within 60 days that were granted to Mr. Feld as compensation for his service on the Board of Directors of the Issuer.

CUSIP NO. 458118106

Item 4.

Purpose of Transaction.

Item 4 is hereby amended to add the following:

As further described in Item 6 below, Starboard Value LP and certain of its affiliates (“Starboard”) entered into a Sales Trading Plan Agreement (the “Sales Trading Plan Agreement”) with Credit Suisse Securities (USA) LLC (“CSSU”), dated October 31, 2013, for the purpose of effecting sales of Shares of the Issuer in compliance with, among other things, Rule 10b5-1 of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder (the “Exchange Act”). The Sales Trading Plan Agreement, if fully executed, would represent less than one-third of Starboard’s aggregate position in the Issuer, and is tiered based upon certain volume and pricing thresholds such that a large majority of the shares subject to the Sales Trading Plan Agreement would only be sold if the stock trades at levels above the current share price.

Item 5.

Interest in Securities of the Issuer.

Items 5(a)-(c) are hereby amended and restated to read as follows:

The aggregate percentage of Shares reported owned by each person named herein is based upon 149,875,983 Shares outstanding, as of August 5, 2013, which is the total number of Shares outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission on August 8, 2013.

A.	Starboard V&O Fund

(a)

As of the close of business on October 30, 2013, Starboard V&O Fund beneficially owned 7,603,224 Shares.

Percentage: Approximately 5.1%

(b)

1. Sole power to vote or direct vote: 7,603,224

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 7,603,224

4. Shared power to dispose or direct the disposition: 0

(c)

Starboard V&O Fund has not entered into any transactions in the Shares during the past sixty days.

B.	Starboard S LLC

(a)

As of the close of business on October 30, 2013, Starboard S LLC beneficially owned 1,907,974 Shares.

Percentage: Approximately 1.3%

(b)

1. Sole power to vote or direct vote: 1,907,974

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 1,907,974

4. Shared power to dispose or direct the disposition: 0

(c)

Starboard S LLC has not entered into any transactions in the Shares during the past sixty days.

CUSIP NO. 458118106

C.	Starboard Value LP

(a)

As of the close of business on October 30, 2013, 2,988,802 Shares were held in the Starboard Value LP Account. Starboard Value LP, as the investment manager of Starboard V&O Fund and the Starboard Value LP Account and the manager of Starboard S LLC, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.3%

(b)

1. Sole power to vote or direct vote: 12,500,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 12,500,000

4. Shared power to dispose or direct the disposition: 0

(c)

Starboard Value LP has not entered into any transactions in the Shares during the past sixty days.

D.	Starboard Value GP

(a)

Starboard Value GP, as the general partner of Starboard Value LP, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.3%

(b)

1. Sole power to vote or direct vote: 12,500,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 12,500,000

4. Shared power to dispose or direct the disposition: 0

(c)

Starboard Value GP has not entered into any transactions in the Shares during the past sixty days.

E.	Principal Co

(a)

Principal Co, as a member of Starboard Value GP, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.3%

(b)

1. Sole power to vote or direct vote: 12,500,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 12,500,000

4. Shared power to dispose or direct the disposition: 0

(c)

Principal Co has not entered into any transactions in the Shares during the past sixty days.

CUSIP NO. 458118106

F.	Principal GP

(a)

Principal GP, as the general partner of Principal Co, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.3%

(b)

1. Sole power to vote or direct vote: 12,500,000

2. Shared power to vote or direct vote: 0

3. Sole power to dispose or direct the disposition: 12,500,000

4. Shared power to dispose or direct the disposition: 0

(c)

Principal GP has not entered into any transactions in the Shares during the past sixty days.

G.	Messrs. Smith and Mitchell

(a)

Each of Messrs. Smith and Mitchell, as a member of Principal GP and as a member of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.3%

(b)

1. Sole power to vote or direct vote: 0

2. Shared power to vote or direct vote: 12,500,000

3. Sole power to dispose or direct the disposition: 0

4. Shared power to dispose or direct the disposition: 12,500,000

(c)

None of Messrs. Smith or Mitchell has entered into any transactions in the Shares during the past sixty days.

Mr. Feld

(a)

As of the close of business on October 30, 2013, Mr. Feld beneficially owned (i) 8,834 vested RSUs and (ii) 25,333 Shares underlying certain options exercisable within 60 days. Mr. Feld, as a member of Principal GP and as a member of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed the beneficial owner of the (i) 7,603,224 Shares owned by Starboard V&O Fund, (ii) 1,907,974 Shares owned by Starboard S LLC and (iii) 2,988,802 Shares held in the Starboard Value LP Account.

Percentage: Approximately 8.4%.

(b)

1. Sole power to vote or direct vote: 34,167

2. Shared power to vote or direct vote: 12,500,000

3. Sole power to dispose or direct the disposition: 34,167

4. Shared power to dispose or direct the disposition: 12,500,000

CUSIP NO. 458118106

(c)

Mr. Feld has not entered into any transactions in the Shares during the past sixty days.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

Item 6 is hereby amended to add the following:

As disclosed Item 4 above, on October 31, 2013, Starboard entered into the Sales Trading Plan Agreement with CSSU for the purpose of establishing a trading plan to effect sales of Shares of the Issuer in compliance with all applicable laws, including, without limitation, Section 10(b) of the Exchange Act, including, but not limited to, Rule 10b5-1. The Sales Trading Plan allows for the sale of up to 3,700,000 Shares by CSSU on behalf of Starboard. Shares sold pursuant to the Sales Trading Plan Agreement may only be sold in accordance with trading requirements adopted by the Reporting Persons, and there can be no assurance as to how many Shares, if any, will be sold pursuant to the Sales Trading Plan Agreement or at what price any such Shares will be sold.

As disclosed in Item 4 above, the Sales Trading Plan Agreement, if fully executed, would represent less than one-third of Starboard’s aggregate position in the Issuer, and is tiered based upon certain volume and pricing thresholds such that a large majority of the shares subject to the Sales Trading Plan Agreement would only be sold if the stock trades at levels above the current share price. A copy of the Sales Trading Plan Agreement is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 7.

Material to be Filed as Exhibits.

Item 7 is hereby amended to add the following exhibit:

99.1

Sales Trading Plan Agreement between Starboard Value LP and Credit Suisse Securities (USA) LLC, dated October 31, 2013.

CUSIP NO. 458118106

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: October 31, 2013

STARBOARD VALUE AND OPPORTUNITY MASTER FUND LTD

By: Starboard Value LP,

its investment manager

STARBOARD VALUE AND OPPORTUNITY S LLC

By: Starboard Value LP,

its manager

STARBOARD VALUE LP

By: Starboard Value GP LLC,

its general partner

STARBOARD VALUE GP LLC

By: Starboard Principal Co LP,

its member

STARBOARD PRINCIPAL CO LP

By: Starboard Principal Co GP LLC,

its general partner

STARBOARD PRINCIPAL CO GP LLC



By:	/s/ Jeffrey C. Smith
	Name:	Jeffrey C. Smith
	Title:	Authorized Signatory

/s/ Jeffrey C. Smith

JEFFREY C. SMITH

Individually and as attorney-in-fact for Mark R. Mitchell and Peter A. Feld