<PAGE>
As filed with the Securities and Exchange Commission on May 28, 1999
Registration Nos. 333-50529;
811-08759
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 / X /
Pre-Effective Amendment No. / /
Post-Effective Amendment No. 4 / X /
REGISTRATION STATEMENT UNDER THE INVESTMENT
COMPANY ACT OF 1940 / X /
Amendment No. 6 / X /
BARR ROSENBERG VARIABLE INSURANCE TRUST
(Exact Name of Registrant as Specified in Charter)
c/o Rosenberg Institutional Equity Management, Four Orinda Way,
Building E, Orinda, CA 94563
(Address of Principal Executive Offices) (Zip code)
925-254-6464
(Registrant's Telephone Number, including Area Code)
Name and address
of agent for service: Copies to:
-------------------- ---------
Kenneth Reid J.B. Kittredge, Esq.
AXA Rosenberg Investment Ropes & Gray
Management LLC One International Place
Four Orinda Way Boston, MA 02110-2624
Building E
Orinda, CA 94563
NOTE: THIS AMENDMENT RELATES SOLELY TO SHARES OF BENEFICIAL INTEREST IN THE BARR
ROSENBERG VIT SELECT SECTORS MARKET NEUTRAL FUND. INFORMATION CONTAINED IN THE
TRUST'S REGISTRATION STATEMENT RELATING TO THE OTHER SERIES OF THE TRUST IS
NEITHER AMENDED NOR SUPERSEDED HEREBY. THIS AMENDMENT HAS BEEN FILED SOLELY FOR
THE PURPOSE OF REMOVING THE BARR ROSENBERG VIT SELECT SECTORS MARKET NEUTRAL
FUND FROM THE TRUST'S REGISTRATION STATEMENT.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant has duly caused this
Post-Effective Amendment No. 4 to its Registration Statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the City of
Orinda, and the State of California, on the 28th day of May, 1999.
BARR ROSENBERG VARIABLE INSURANCE
TRUST
By: KENNETH REID
-----------------------------------
Kenneth Reid
President
Pursuant to the requirements of the Securities Act of 1933, this Amendment to
its Registration Statement has been signed below by the following persons in the
capacities indicated and on the 28th day of May, 1999.
SIGNATURE TITLE DATE
--------- ----- ----
KENNETH REID President and Trustee May 28, 1999
--------------------- (principal executive
Kenneth Reid officer)
Po-Len Hew* Treasurer May 28, 1999
- ---------------------- (principal financial
Po-Len Hew and accounting officer)
William F. Sharpe* Trustee May 28, 1999
- ----------------------
William F. Sharpe
Nils H. Hakansson* Trustee May 28, 1999
- ----------------------
Nils H. Hakansson
Dwight M. Jaffee* Trustee May 28,1999
- ----------------------
Dwight M. Jaffee
*By: KENNETH REID
------------
Kenneth Reid
Attorney-in-Fact
Date: May 28, 1999
