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OMB APPROVAL
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- -------- OMB Number: 3235-0104
FORM 3 Expires: September 30, 1998
- -------- Estimated average burden
hours per response .... 0.5
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U.S. SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a)
of the Public Utility Holding Company Act of 1935 or Section 30(f)
of the Investment Company Act of 1940
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<S> <C> <C> <C>
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1. Name and Address of Reporting Person* 2. Date of Event Requiring 4. Issuer Name and Ticker or 6. If Amendment, Date
Williams Communications Group, Inc. Statement Trading Symbol of Original
- ---------------------------------------- (Month/Day/Year) Concentric Network Corporation, CNCX (Month/Day/Year)
(Last) (First) (Middle) 08-06-97 ------------------------------------ N/A
One Williams Center ---------------------------- 5. Relationship of Reporting ---------------------
- ---------------------------------------- 3. IRS or Social Security Person to Issuer 7. Individual or
(Street) Number of Reporting (Check all applicable) Joint/Group Filing
Person (Voluntary) X (check applicable
Tulsa, Oklahoma 74172 73-1462856 ----- Director ----10% Owner
- -------------------------------------- ---------------------------- ----- Officer ----Other (specify [X] Form filed by
(City) (State) (Zip) (give title below) below) One Reporting
Person
[ ] Form filed by
More than One
Reporting
Person
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TABLE 1 -- NON-DERIVATIVE SECURITIES BENEFICIALLY OWNED
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1. Title of Security 2. Amount of Securities 3. Ownership Form: 4. Nature of Indirect
(Instr. 4) Beneficially Owned Direct (D) or Beneficial
(Instr. 4) Indirect (I) Ownership (Instr. 5)
(Instr. 5)
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Common Stock, $0.001 par value 1,249,236 Direct N/A
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*If the form is filed by more than one reporting person see Instruction 5(b)(v).
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over)
(Print or Type Responses) SEC 1473 (7/96)
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FORM 3 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES BENEFICIALLY OWNED
(E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
<S> <C> <C> <C> <C> <C>
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1. Title of Derivative Security 2. Date 3. Title and Amount of 4. Conver- 5. Owner- 6. Nature of Indirect
(Instr. 4) Exercisable and Securities Underlying sion or ship Beneficial Ownership
Expiration Date Derivative Security Exercise Form of (Instr. 5)
(Month/Day/ (Instr. 4) Price of Deriv-
Year) Deri- ative
vative Security:
Security Direct
------------------------------------------------- (D) or
Date Expira- Amount or Indirect (I)
Exercis- tion Title Number (Instr. 5)
able Date of Shares
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Amended and Restated Common 6-19-97 * Common Stock,
Stock Purchase Warrant $0.001 par value 63,351 $6.00 Direct N/A
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Common Stock Warrant 8-6-97 * Common Stock, 291,667 $6.00 Direct N/A
Purchase Agreement $0.001 par value
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Agreement for Purchase and 8-6-97 ** Common Stock,
Sale of Services & Equipment $0.001 par value $2 million Market Price Direct N/A
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Explanation of Responses: *The purchase rights terminate upon the earlier of (i) five years after the date of the grant or (ii)
upon either the merger, transfer of more 50 percent of the voting power, on the sale of substantially all the assets of Issuer.
**The purchase rights terminate upon the later of (i) 7-25-07; (ii) when certain take-or-pay
obligations under the agreement have been satisfied; or (iii) when the Reporting Person ceases to own at least 5 percent of Issuer's
common stock.
By: /s/ WILLIAM G. von GLAHN 8-15-97
**Intentional misstatements or omissions of facts constitute Federal Criminal ------------------------------- -------------
Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). **Signature of Reporting Person Date
Assistant Secretary on
Note. File three copies of this Form, one of which must be manually signed. behalf of Williams Page 2
If space provided is insufficient, See Instruction 6 for procedure. Communications Group, Inc. SEC 1473 (7/96)
Potential persons who are to respond to the collection of information
contained in this form are not required to respond unless the form displays
a currently valid OMB number.
Page 2 of 2 pages
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