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ALLMERICA INVESTMENT TRUST
(SUPPLEMENT TO PROSPECTUS DATED MAY 1, 1999)
The section relating to the Growth Fund in the table containing information
about the individuals who are primarily responsible for the day-to-day
management of the Funds under "Management of the Funds" in the Trust's
Prospectus is amended to delete Nicholas Kovich and add the following
individuals:
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<CAPTION>
Fund Name and Name and Title of Service with Business Experience
Sub-Adviser Name Portfolio Manager(s) Sub-Adviser for Past Five Years
- ---------------- -------------------- ----------- -------------------
<S> <C> <C> <C>
Growth Fund Chris Leavy, 1997 - Present Prior to joining MAS, Mr.
Miller Anderson & Sherrerd, LLP CFA and Vice President Leavy was employed by
("MAS") Capitoline Investment Services
as a portfolio Manager from
1995-1997.
Steven Epstein, 1996-Present Prior to joining MAS, Mr.
Vice President Epstein attended the Wharton
School, University of Pennsylvania
from 1994-1996, receiving an MBA.
Eric F. Scharpf, 1997 - Present Prior to joining MAS, Mr.
Vice President Scharpf attended the Wharton
School, University of Pennsylvania
from 1995-1997 receiving an MBA,
and served as a Financial Analyst
for Salomon Brothers from 1993-1995.
The section relating to the Investment Grade Income Fund in the same table noted
above is amended to read as follows:
Investment Grade Income Fund Ann K. Tripp, 1987 - Present She joined AAM in 1987 and
Allmerica Asset Management, Inc. Vice President has served as a Vice President
("AAM") of the firm since 1993.
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Dated: March 7, 2000