Filed Pursuant to Rule 424(b)(3)

Registration No. 333-141208

PROSPECTUS SUPPLEMENT NO. 1

(TO PROSPECTUS DATED MARCH 9, 2007)

INTERNATIONAL GAME TECHNOLOGY

$900,000,000

2.60% Convertible Debentures due December 15, 2036

Shares of Common Stock Issuable Upon Conversion Of The Debentures

This Prospectus Supplement No. 1 supplements and amends the Prospectus dated March 9, 2007 (the “Prospectus”), relating to the resale from time to time by holders of our 2.60% Convertible Debentures Due 2036 and shares of our common stock issuable upon the conversion of the Debentures of such securities. Such information has been obtained from the selling securityholders. This prospectus supplement should be read in conjunction with the Prospectus, which is to be delivered with this prospectus supplement.

The information appearing in the table below, as of the date hereof, supplements and amends the information in the table appearing under the heading “Selling Securityholders” in the Prospectus, and, where the name of a Selling Securityholder identified in the table below also appears in the table in the Prospectus, the information set forth in the table below regarding that Selling Securityholder supersedes the information in the Prospectus:

 

 

Principal Amount
of Debentures

 

Number of Shares
of Common Stock

 

Selling Securityholder

 

Beneficially
Owned and
Offered Hereby

 

Percentage of
Debentures
Outstanding

 

Beneficially
Owned

 

Offered
Hereby(1)

 

ACIG Insurance Company

 

$

780,000

 

*

 

*

 

12,626

 

Amerisure Mutual Insurance Company

 

3,700,000

 

*

 

*

 

59,893

 

Blue Cross Blue Shield of Louisiana

 

750,000

 

*

 

*

 

12,140

 

Catholic Mutual Relief Society of America

 

280,000

 

*

 

*

 

4,532

 

Catholic Mutual Relief Society Retirement Plan and Trust

 

140,000

 

*

 

*

 

2,266

 

Charles G. Koch 1997 Trust

 

260,000

 

*

 

*

 

4,208

 

Citigroup Global Markets Inc.

 

13,200,000

 

1.47

 

*

 

213,675

 

Employees’ Retirement of New Orleans / Sewer & Water Board

 

200,000

 

*

 

*

 

911

 

Excellus Health Plan

 

5,500,000

 

*

 

*

 

2,094

 

Federated Rural Electric Insurance Exchange

 

360,000

 

*

 

*

 

5,827

 

Health Plan of Michigan

 

40,000

 

*

 

*

 

647

 

Indiana Lumbermen’s Mutual Insurance Company

 

200,000

 

*

 

*

 

3,237

 

Investcorp Silverback Arbitrage Master Fund Limited

 

2,000,000

 

*

 

*

 

32,375

 

Medmarc Insurance

 

500,000

 

*

 

*

 

8,093

 

Midwest Medical Insurance Company

 

550,000

 

*

 

*

 

8,903

 

Pimco

 

300,000

 

*

 

*

 

4,856

 

Plexus Fund Limited

 

15,000,000

 

1.67

 

*

 

242,812

 

San Francisco Employees’ Retirement System

 

1,550,000

 

*

 

*

 

25,090

 

Teachers’ Retirement System

 

5,800,000

 

*

 

*

 

2,658

 

The Doctors Company

 

1,300,000

 

*

 

*

 

911

 

UBS Securities LLC

 

4,759,000

 

*

 

*

 

77,036

 

Zazove Institutional Investment Grade

 

800,000

 

*

 

*

 

12,950

 

 

*

 

Less than 1%

(1)

 

The number of shares of common stock offered hereby includes shares of common stock into which the Debentures are convertible. The number of shares of common stock offered hereby is based on a conversion rate of 16.1875 shares of common stock per $1,000 principal amount of maturity of the Debentures. The number of shares of common stock owned by the other Selling Securityholders or any future transferee from any such holder assumes that they do not beneficially own any common stock other than common stock into which the Debentures are convertible at a conversion rate of 16.1875 shares of common stock per $1,000 principal amount of maturity of the Debentures.

 

INVESTING IN THE DEBENTURES OR THE COMMON STOCK ISSUABLE UPON CONVERSION OF THE DEBENTURES INVOLVES A HIGH DEGREE OF RISK. PLEASE CONSIDER THE “RISK FACTORS” BEGINNING ON PAGE 6 OF THE PROSPECTUS.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THE PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus supplement is March 19, 2007.