EDGAR Filing Documents for 0000935069-07-000255

Form N-CSRS - Certified Shareholder Report, Semi-Annual:

SEC Accession No. 0000935069-07-000255

Filing Date

2007-02-06

Accepted

2007-02-06 16:08:28

Documents

Period of Report

2006-05-31

Effectiveness Date

2007-02-06

Document Format Files

Seq	Description	Document	Type	Size
1	SIIT COMB SAR 11_06	siitcombsar11_06.txt	N-CSRS	1444749
2	SIIT CERT 302 RN 11_06	siitcert302rn11_06.txt	EX-99.CERT	3711
3	SIIT CERT 302 SP 11_06	siitcert302sp11_06.txt	EX-99.CERT	3715
4	SIIT CERT 906 RN 11_06	siitcert906rn11_06.txt	EX-99.906CERT	1252
5	SIIT CERT 906 SP 11_06	siitcert906sp11_06.txt	EX-99.906CERT	1251
	Complete submission text file	0000935069-07-000255.txt		1461843

Series and Classes/Contracts Information:

Existing
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006761		SIIT INTERNATIONAL EQUITY FUND
Class/Contract C000018350		SIIT INTERNATIONAL EQUITY FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006762		SIIT LONG DURATION FUND
Class/Contract C000018351		SIIT LONG DURATION FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006763		SIIT HIGH YIELD BOND FUND
Class/Contract C000018352		SIIT HIGH YIELD BOND FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006764		SIIT EMERGING MARKETS DEBT FUND
Class/Contract C000018353		SIIT EMERGING MARKETS DEBT FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006765		SIIT WORLD EQUITY EX-US
Class/Contract C000018354		SIIT WORLD EQUITY EX-US - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006766		SIIT CORE FIXED INCOME
Class/Contract C000018355		SIIT CORE FIXED INCOME - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006767		SIIT LARGE CAP FUND
Class/Contract C000018356		SIIT LARGE CAP FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006768		SIIT LARGE CAP INDEX FUND
Class/Contract C000018357		SIIT LARGE CAP INDEX FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006769		SIIT LARGE CAP DISCIPLINED EQUITY FUND
Class/Contract C000018358		SIIT LARGE CAP DISCIPLINED EQUITY FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006770		SIIT SMALL MID CAP EQUITY FUND
Class/Contract C000018359		SIIT SMALL MID CAP EQUITY FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006771		SIIT EXTENDED DURATION FUND
Class/Contract C000018360		SIIT EXTENDED DURATION FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000006772		SIIT SMALL CAP FUND
Class/Contract C000018361		SIIT SMALL CAP FUND - CLASS A
	Status	Name	Ticker Symbol
CIK 0000939934
Series S000010543		SIIT LARGE CAP DIVERSIFIED ALPHA FUND
Class/Contract C000029091		SIIT LARGE CAP DIVERSIFIED ALPHA FUND - CLASS A

Mailing Address 1 FREEDOM VALLEY DRIVE OAK PA 19456

Business Address 1 FREEDOM VALLEY DRIVE OAK PA 19456 610 676-3097

SEI INSTITUTIONAL INVESTMENTS TRUST (Filer) CIK: 0000939934 (see all company filings)