May 5, 2026 - 144: Report of proposed sale of securities

144: Filer Information

Filer CIK

0001473203

Filer CCC

XXXXXXXX

Is this a LIVE or TEST Filing?

LIVE

TEST

Submission Contact Information

Name

Phone

E-Mail Address

144: Issuer Information

Name of Issuer

Quanta Services, Inc.

SEC File Number

Address of Issuer

2727 NORTH LOOP WEST
HOUSTON
TEXAS
77008

Phone

713-629-7600

Name of Person for Whose Account the Securities are To Be Sold

Earl Austin Jr.

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

President/CEO

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Merrill Lynch 800 Capitol St Suite 1900 Houston TX 77002	155992	123279998.26	150060149	05/05/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	03/02/2022	Stock Bonus	Quanta Services, Inc.	50343	03/02/2022	Stock Bonus
Common Stock	03/26/2022	Stock Bonus	Quanta Services, Inc.	4925	03/26/2022	Stock Bonus
Common Stock	03/26/2022	Stock Bonus	Quanta Services, Inc.	5193	03/26/2022	Stock Bonus
Common Stock	02/27/2025	Stock Bonus	Quanta Services, Inc.	58465	02/27/2025	Stock Bonus
Common Stock	03/04/2025	Stock Bonus	Quanta Services, Inc.	4397	03/04/2025	Stock Bonus
Common Stock	03/04/2025	Stock Bonus	Quanta Services, Inc.	2916	03/04/2025	Stock Bonus
Common Stock	03/09/2025	Stock Bonus	Quanta Services, Inc.	3761	03/09/2025	Stock Bonus

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

05/05/2026

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

Tyler Morgan

Form: 144

FORM 144