QUANTA SERVICES, INC.

10. EQUITY:

Stock Repurchases

On May 23, 2023, Quanta’s Board of Directors approved a stock repurchase program that authorizes Quanta to purchase, from time to time through June 30, 2026, up to $500 million of its outstanding common stock. During the three months ended September 30, 2025, Quanta didnot repurchase any shares of its common stock in the open market under its stock repurchase program. During the nine months ended September 30, 2025, Quanta repurchased 538,559 shares of its common stock in the open market under its stock repurchase program for $134.6 million. As of September 30, 2025, $365.1 million remained available under this repurchase program.

Repurchases may be implemented through open market repurchases or privately negotiated transactions, at management’s discretion, based on market and business conditions, applicable contractual and legal requirements and other factors. Quanta is not obligated to acquire any specific amount of common stock, and the repurchase program may be modified or terminated by Quanta’s Board of Directors at any time at its sole discretion and without notice.

Dividends

Quanta declared the following cash dividends and cash dividend equivalents during 2024 and the first nine months of 2025 (in thousands, except per share amounts):