Pospectus Supplement No. 1 Filed Pursuant To Rule 424(b)(3)
To Prospectus Dated November 17, 1999 Registration No. 333-90011
C-COR.net CORP.
1,794,802 Shares of Common Stock
This Prospectus Supplement supplements information contained in that
certain Prospectus of C-COR.net Corp. (the "Company") dated November 17, 1999,
relating to the resale by the selling shareholders listed therein of shares of
Common Stock, par value of $0.10 per share (the "Common Stock"), of the Company.
This Prospectus Supplement is not complete without, and may not be delivered or
utilized except in connection with, the Prospectus, including any amendments or
supplements thereto. All capitalized terms used but not defined in this
Prospectus Supplement shall have the meanings given them in the Prospectus.
The section entitled "SELLING SHAREHOLDERS," beginning on page 14 of the
Prospectus is amended to restate the information with respect to James T. Chang.
The information set forth below replaces the information in the Prospectus.
<TABLE>
<CAPTION>
Securities Owned Securities Owned
Prior to Offering After Offering
--------------------------------------------------- --------------------------------
Shares of Number of
Shares of Common Stock Percent of Shares of Percent of
Name of Selling Shareholder Common Stock Offered Hereby Common Stock Common Stock Common Stock
- -------------------------------- ------------ -------------- ------------ ------------ ------------
<S> <C> <C> <C> <C> <C>
James T. Chang.................. 2,735 2,735 * 0 *
</TABLE>
- -----------------------
*Less than one percent.
--------------------------------------------
AN INVESTMENT IN THE SHARES OFFERED HEREBY INVOLVES A HIGH DEGREE OF RISK.
SEE "RISK FACTORS" BEGINNING ON PAGE 4 OF THE PROSPECTUS.
--------------------------------------------
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THE PROSPECTUS OR THIS PROSPECTUS SUPPLEMENT. ANY
REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
The date of this Prospectus Supplement is December 3, 1999.
