/------------------------------/ / OMB APPROVAL / /------------------------------/ / OMB Number: 3235-0287 / / Expires: December 31, 2001 / / Estimated average burden / / hours per response...... 0.5 / /------------------------------/ +--------+ | FORM 4 | UNITED STATES SECURITIES AND EXCHANGE COMMISSION +--------+ Washington, D.C. 20549 [_] Check this box if no longer subject STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP to Section 16. Form 4 or Form 5 Filed pursuant to Section 16(a) of the Securities obligations may Exchange Act of 1934, Section 17(a) of the continue. See Public Utility Holding Company Act of 1935 or Instruction 1(b). Section 30(f) of the Investment Company Act of 1940 (Print or Type Responses) -------------------------------------------------------------------------------- 1. Name and Address of Reporting Person* Foster Vincent D. -------------------------------------------------------------------------------- (Last) (First) (Middle) 1300 Post Oak Blvd., Suite 800 -------------------------------------------------------------------------------- (Street) Houston Texas 77056 -------------------------------------------------------------------------------- (City) (State) (Zip) 2. Issuer Name and Ticker or Trading Symbol Quanta Services, Inc., Trading Symbol "PWR" ----------------------------------- 3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary) -------------- 4. Statement for Month/Year 12/01 --------------------------------------------------- 5. If Amendment, Date of Original (Month/Year) --------------------------------- 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director ___ Officer ___ 10% Owner ___ Other --- (give title below) (specify below) ---------------------------------------------------------------- 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 Acquired, Disposed of, or Beneficially Owned ------------------------------------------------------------------------------------------------------------------------------------ 1. Title 2. Trans- 3. Trans- 4. Securities Acquired (A) 5. Amount of 6. Owner- 7. Nature of action action or Disposed of (D) Securities ship of In- Security Date Code (Instr. 3, 4 and 5) Beneficially Form: direct (Instr. 3) (Month/ (Instr. 8) Owned at Direct Bene- Day/ ----------------------------------------------- End of (D) or ficial Year) Month Indirect Owner- Code V Amount (A) or Price (Instr. 3 and 4) (I) ship (D) (Instr. 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Limited Vote Common 01/04/01 J(1) 15,564 D 32.125 0 I Main Street Stock Equity Ventores Il, L.P.(2) ------------------------------------------------------------------------------------------------------------------------------------ Limited Vote Common 191,698 D Stock ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If this form is filed by more than one reporting person, see Instruction 4(b)(v). 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 control number Table II--Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) FORM 4 (continued) ----------------------------------------------------------------------------------------------------------------------------- 1. Title of Derivative 2. Conver- 3. Trans- 4. Transac- 5. Number of Deriv- Security (Instr. 3) sion or action tion Code ative Securities Exercise Date (Instr. 8) Acquired (A) or Price of (Month/ Disposed of (D) Deriv- Day/ (Instr. 3, 4, and 5) ative Year) Security --------------------------------------------------- Code V (A) (D) ----------------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------------ 6. Date Exer- 7. Title and Amount of 8. Price 9. Number 10. Owner- 11. Na- cisable and Underlying Securities of of Deriv- ship ture Expiration (Instr. 3 and 4) Deriv- ative Form of In- Date ative Secur- of De- direct (Month/Day/ Secur- ities rivative Bene- Year) ity Bene- Security ficial (Instr. ficially Direct Owner- -------------------------------------------- 5) Owned (D) or ship Date Expira- Amount or at End Indirect (Instr. Exer- tion Title Number of of (I) 4) cisable Date Shares Month (Instr. 4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Explanation of Responses: (1) Exchange for redemption of limited partnership interests in Main Street Equity Ventures II,L.P. (2) The reporting person is Managing Director of Main Street Equity Ventures II, L.P. /s/ Vincent D. Foster 01/09/02 ------------------------------- ----------------- **Signature of Reporting Person Date ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. 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