<PAGE>
U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 3
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
1. Name and Address of Reporting Person:
Lawrence Lacerte
5323 Park Lane
Dallas, TX 75220
2. Date of Event Requiring Statement: (Month/Day/Year): December 13, 1999
---------------------
3. IRS Identification Number of Reporting Person, if an Entity
(Voluntary):
------------
4. Issuer Name and Ticker or Trading Symbol: TGCC
----------
5. Relationship of Reporting Person to Issuer (Check all applicable):
X Director 10% Owner
------- -----
Officer (give title below) Other (Specify below)
------- -----
6. If Amendment, Date of Original (Month/Day/Year):
----
7. Individual or Joint/Group Filing (Check applicable line):
X Form filed by one reporting person
-----
Form filed by more than one reporting person
-----
TABLE I -- NON-DERIVATIVE SECURITIES BENEFICIALLY OWNED
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
1. Title of Security (Instr. 4) 2. Amount of 3. Ownership 4. Name of Indirect
Securities Beneficially Form: Direct Beneficial Ownership (Instr. 5)
(D) or Indirect (I)
(Instr. 5)
<S> <C> <C> <C>
- -----------------------------------------------------------------------------------------------------------------------------------
Common Stock 780,952 D
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
FORM 3 (CONTINUED)
TABLE II: DERIVATIVE SECURITIES BENEFICIALLY OWNED (E.G., PUTS,
CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------------
1. Title of 2. Date Exercisable and 3. Title and Amount of 4. Conversion or 5. Ownership 6. Nature of
Derivative Security Expiration Date Securities Underlying Exercise Price of Form of Indirect
(Instr. 4) (Month/Day/Year) Derivative Security (Instr. 4) Derivative Derivative Beneficial
Security Security: Ownership
Direct (D) or (Instr. 5)
Indirect (I)
(Instr. 5)
- -----------------------------------------------------------------------------------------------------------------------------------
Date Expiration Title Amount or
Exercisable Date Number of
Shares
<S> <C> <C> <C> <C> <C> <C> <C>
- -----------------------------------------------------------------------------------------------------------------------------------
Options to Purchase * 3/25/99 Common Stock 50,000 $10.125 D N/A
- -----------------------------------------------------------------------------------------------------------------------------------
Options to Purchase ** 12/13/99 Common Stock 50,000 $ 6.94 D N/A
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
* Vesting Schedule is as follows:
<TABLE>
<CAPTION>
Number of Shares Vesting Date
---------------- ------------
<S> <C>
12,500 March 25, 1999
12,500 March 25, 2000
12,500 March 25, 2001
12,500 March 25, 2002
</TABLE>
** Vesting Schedule is as follows:
<TABLE>
<CAPTION>
Number of Shares Vesting Date
---------------- -----------------
<S> <C>
12,500 December 13, 1999
12,500 December 13, 2000
12,500 December 13, 2001
12,500 December 13, 2002
</TABLE>
Explanation of Responses:
** Intentional misstatements or omissions of facts constitute Federal
Criminal Violations. SEE 18 U.S.C. 1001 and 15 U.S.C. 78f(a).
/s/ LAWRENCE LACERTE December 22, 1999
----------------------------- -----------------
Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly. If the Form is filed by more than one Reporting
Person, see Instruction 5(b)(v).
2
