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As Filed With the Securities and Exchange Commission on March 26, 1999
File No. 33-23166
811-5624
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [ ]
POST-EFFECTIVE AMENDMENT NO. 41 [X]
and
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [ ]
AMENDMENT NO. 42 [X]
MORGAN STANLEY DEAN WITTER INSTITUTIONAL FUND, INC.
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(Exact Name of Registrant as Specified in Charter)
1221 Avenue of the Americas
New York, New York 10020
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(Address of Principal Executive Offices) (Zip Code)
Registrant's Telephone Number, including Area Code: (800) 548-7786
Harold J. Schaaff, Jr., Esq.
Morgan Stanley Dean Witter Investment Management Inc.
1221 Avenue of the Americas, New York, New York 10020
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(Name and Address of Agent for Service)
Copy to:
Michael F. Klein, Esq. Richard W. Grant, Esq.
Morgan Stanley Dean Witter Investment Morgan, Lewis & Bockius LLP
Management Inc. 1701 Market Street
1221 Avenue of the Americas Philadelphia, PA 19103
New York, NY 10020
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It is proposed that this filing will become effective (check appropriate box)
immediately upon filing pursuant to paragraph (b)
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X on April 27, 1999 pursuant to paragraph (b)(1)(iii)
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60 days after filing pursuant to paragraph (a)(1)
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75 days after filing pursuant to paragraph (a)(2)
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on [ date] pursuant to paragraph (a) of Rule 485.
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The Fund's Prospectuses relating to all Portfolios of the Fund are hereby
incorporated by reference to Post-Effective Amendment No. 40 to the Registrant's
Registration Statement on Form N-1A, filed with the Securities and Exchange
Commission via EDGAR (Accession No. 0001047469-99-002378) on January 27, 1999.
The Fund's Statement of Additional Information relating to all Portfolios
of the Fund is hereby incorporated by reference to Post-Effective Amendment No.
40 to the Registrant's Registration Statement on Form N-1A, filed with the
Securities and Exchange Commission via EDGAR (Accession No. 0001047469-99-
002378) on January 27, 1999.
The Fund's Part C is hereby incorporated by reference to Post-Effective
Amendment No. 40 to the Registrant's Registration Statement on Form N-1A, filed
with the Securities and Exchange Commission via EDGAR (Accession No.
0001047469-99-002378) on January 27, 1999.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended (the
"1933 Act"), and the Investment Company Act of 1940, as amended, the Registrant
certifies that it meets all of the requirements for effectiveness of this
Amendment pursuant to Rule 485(b) under the 1933 Act and has duly caused this
Amendment to its Registration Statement to be signed on its behalf by the
undersigned, duly authorized, in the City of New York and State of New York on
March 25, 1999.
MORGAN STANLEY DEAN WITTER INSTITUTIONAL FUND, INC.
By: /s/ Michael F. Klein
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Michael F. Klein
President and Director
Pursuant to the requirements of the 1933 Act, this Amendment to the
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.
Signature Title Date
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/s/ Michael F. Klein Director, President March 25, 1999
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Michael F. Klein Officer)
*/s/ Barton M. Biggs Director (Chairman) March 25, 1999
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Barton M. Biggs
*/s/ Fergus Reid Director March 25, 1999
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Fergus Reid
*/s/ Frederick O. Robertshaw Director March 25, 1999
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Frederick O. Robertshaw
*/s/ Andrew McNally IV Director March 25, 1999
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Andrew McNally IV
*/s/ John D. Barrett II Director March 25, 1999
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John D. Barrett II
*/s/ Gerard E. Jones Director March 25, 1999
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Gerard E. Jones
*/s/ Samuel T. Reeves Director March 25, 1999
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Samuel T. Reeves
/s/ Joanna M. Haigney Treasurer March 25, 1999
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Joanna M. Haigney
*By: /s/ Michael F. Klein
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Michael F. Klein
Attorney-In-Fact
