As filed with the Securities and Exchange Commission on February 14, 2013
File No. 033-09504
File No. 811-04878
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
POST-EFFECTIVE AMENDMENT NO. 89
and
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
AMENDMENT NO. 91
SEI INSTITUTIONAL MANAGED TRUST
(Exact Name of Registrant as Specified in Charter)
SEI Investments Company
One Freedom Valley Drive
Oaks, Pennsylvania 19456
(Address of Principal Executive Offices)
(610) 676-1000
Timothy D. Barto
SEI Investments Company
One Freedom Valley Drive
Oaks, Pennsylvania 19456
(Name and Address of Agent for Service)
Copy to:
Timothy W. Levin, Esquire
Morgan, Lewis & Bockius LLP
1701 Market Street
Philadelphia, PA 19103
Title of Securities Being Registered. . .Units of Beneficial Interest
It is proposed that this filing become effective (check appropriate box)
x
immediately upon filing pursuant to paragraph (b)
o
on [date] pursuant to paragraph (b)
o
60 days after filing pursuant to paragraph (a)(1)
o
on [date] pursuant to paragraph (a)(1)
o
75 days after filing pursuant to paragraph (a)(2)
o
on [date] pursuant to paragraph (a)(2) of Rule 485.
If appropriate, check the following box:
o
This post-effective Amendment designates a new effective date for a previously filed Post-Effective Amendment.