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Filed pursuant to Rule 424(b)(3)
Registration Statement No.333-42235
SUPPLEMENT TO PROSPECTUS DATED DECEMBER 15, 1997
INTERSYSTEMS, INC.
2,590,547 Shares of Common Stock
This Prospectus relates to the offer and sale of 2,590,547 shares of common
stock of InterSystems, Inc. (the "Company"), $.01 par value per share (the
"Common Stock"), including 295,500 shares (the "Conversion Shares") held by Helm
Capital Group, Inc. ("Helm"), the holder of approximately 15% of the Company's
outstanding common stock. The Conversion Shares are to be transferred by Helm to
certain holders of $812,500 principal amount 9 1/2% Senior Convertible Notes,
Series B (the "Mezzanine Notes") issued by Helm's subsidiary, Mezzanine
Financial Corp., upon conversion of the Mezzanine Notes in accordance with their
terms. The purpose of this Supplement is to note that the conversion price of
the Mezzanine Notes has been reduced from $2.75 to $2.25 per share until
September 30, 1998.
The date of this Prospectus Supplement is June 3, 1998.
