<PAGE>
MASSACHUSETTS INVESTORS TRUST
Supplement to the Current Prospectus
During the period from April 1, 1997 through May 30, 1997 (unless
extended by MFS Fund Distributors, Inc. ("MFD")) (the "Sales Period"), MFD will
pay Crowell Weedon & Co. 100% of the applicable sales charge on sales of Class A
shares of the Fund sold by them during the Sales Period. In addition, MFD will
pay Crowell Weedon & Co. an additional commission equal to 0.50% of the net
asset value of all of the Class B shares of the Fund sold by them during the
Sales Period.
The date of this Supplement is April 1, 1997.
<PAGE>
MASSACHUSETTS INVESTORS TRUST
Supplement to the Current Prospectus
During the period from April 1, 1997 through May 30, 1997 (unless
extended by MFS Fund Distributors, Inc. ("MFD")) (the "Sales Period"), MFD will
pay Dain Bosworth, Inc. 100% of the applicable sales charge on sales of Class A
shares of the Fund sold by them during the Sales Period. In addition, MFD will
pay Dain Bosworth, Inc. an additional commission equal to 0.50% of the net asset
value of all of the Class B shares of the Fund sold by them during the Sales
Period.
The date of this Supplement is April 1, 1997.
<PAGE>
MASSACHUSETTS INVESTORS TRUST
Supplement to the Current Prospectus
During the period from April 1, 1997 through May 30, 1997 (unless
extended by MFS Fund Distributors, Inc. ("MFD")) (the "Sales Period"), MFD will
pay EVEREN Securities, Inc. 100% of the applicable sales charge on sales of
Class A shares of the Fund sold by them during the Sales Period. In addition,
MFD will pay EVEREN Securities, Inc. an additional commission equal to 0.50% of
the net asset value of all of the Class B shares of the Fund sold by them during
the Sales Period.
The date of this Supplement is April 1, 1997.
<PAGE>
MASSACHUSETTS INVESTORS TRUST
Supplement to the Current Prospectus
During the period from April 1, 1997 through May 30, 1997 (unless
extended by MFS Fund Distributors, Inc. ("MFD")) (the "Sales Period"), MFD will
pay Interstate Johnson Lane 100% of the applicable sales charge on sales of
Class A shares of the Fund sold by them during the Sales Period. In addition,
MFD will pay Interstate Johnson Lane an additional commission equal to 0.50% of
the net asset value of all of the Class B shares of the Fund sold by them during
the Sales Period.
The date of this Supplement is April 1, 1997.
