<PAGE>
- -------------------------------------------------------------------------------
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF
THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported):
November 25, 1997
CONCENTRIC NETWORK CORPORATION
----------------------
(Exact name of registrant as specified in its charter)
Delaware 0-22575 65-0257497
- ----------------------------- --------------- ---------------------
(State or other jurisdiction (Commission (I.R.S. Employer
of incorporation) File Number) Identification No.)
10590 N. Tantau Avenue
Cupertino, California 95014
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code: (408) 342-2800
Not Applicable
------------------------------------------------------------
(Former name or former address, if changed since last report)
- --------------------------------------------------------------------------------
<PAGE>
This report is filed on behalf of Concentric Network Corporation.
ITEM 5. OTHER EVENTS.
On November 11, 1997, Concentric Network Corporation announced that it
intends, subject to market and other conditions, to raise up to $150 million in
a private placement of senior notes and warrants to purchase shares of common
stock to certain institutional buyers.
The securities to be offered will not be registered under the
Securities Act of 1933, as amended, or applicable state securities laws, and may
not be offered or sold absent registration under the Securities Act of 1933 and
applicable state securities laws or available exemptions from registration
requirements.
ITEM 7. EXHIBITS.
(c) Exhibits:
Exhibit
Number
------
99.1 November 25, 1997 Press Release: Concentric
Announces Private Placement of Senior Notes and
Warrants."
-2-
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.
Dated: December 1, 1997
CONCENTRIC NETWORK CORPORATION
------------------------------------------------
(Registrant)
By: /s/ Michael F. Anthofer
---------------------------------------------
Name: Michael F. Anthofer
Title: Senior Vice President, Finance and
Chief Financial Officer
-3-
<PAGE>
EXHIBIT INDEX
DESCRIPTION OF DOCUMENT
Exhibit
Number
- ------
99.1 November 25, 1997 Press Release: "Concentric Announces Private
Placement of Senior Notes and Warrants."
1
<PAGE>
EXHIBIT 99.1
Concentric Network Corporation Announces Private Placement
of Senior Notes and Warrants
12:28 p.m. Nov 25, 1997 Eastern
CUPERTINO, Calif., Nov. 25 /PRNewswire/ -- Concentric Network Corporation
(Nasdaq: CNCX) announced today that it intends, subject to market and other
conditions, to raise up to $150 million in a private placement of senior notes
and warrants to purchase shares of common stock to certain institutional buyers.
The securities to be offered will not be registered under the Securities Act of
1933, as amended or applicable state securities laws, and may not be offered or
sold absent registration under the Securities Act of 1933 and applicable state
securities laws or available exemptions from registration requirements.
SOURCE
Concentric Network Corporation
Copyright 1997, PR Newswire