v3.25.2
Stockholders' Equity
 6 Months Ended
Jun. 30, 2025
Stockholders' Equity Note [Abstract]  
Stockholders' Equity Stockholders' Equity
Preferred Stock
As of June 30, 2025, and December 31, 2024, the Company had authorized 100,000,000 shares of preferred stock, par value $0.001 per share, of which no shares were issued and outstanding in either period.
Common Stock
As of June 30, 2025 and December 31, 2024, the Company had authorized 1,000,000,000 shares of Class A common stock, par value $0.001 per share. As of June 30, 2025 and December 31, 2024, the Company had authorized 0 and 3,170,181 shares of Class B common stock, par value $0.001 per share, respectively. As of June 30, 2025 and December 31, 2024, 153,576,158 and 152,610,697 shares of Class A common stock were issued and outstanding, respectively, and no shares of Class B common stock were issued and outstanding.
The Company had reserved shares of common stock for issuance as follows:
As of June 30,As of December 31,
20252024
Stock options issued and outstanding964,952 1,322,176 
Unvested restricted stock units issued and outstanding17,300,882 18,386,271 
Shares of Class A common stock reserved for Twilio.org309,429 353,633 
Stock-based awards available for grant under 2016 Plan28,518,814 23,292,678 
Shares of Class A common stock reserved for issuance pursuant to ESPP10,982,134 9,709,326 
Total58,076,211 53,064,084 

Share Repurchase Program
In January 2025, the board of directors of the Company authorized a share repurchase program to repurchase up to $2.0 billion in aggregate value of the Company’s outstanding Class A common stock. Repurchases under this program can be made through open market, private transactions or other means, in compliance with applicable federal securities laws, and can include repurchases pursuant to Rule 10b5-1 trading plans. The Company has discretion in determining the conditions under which shares may be repurchased from time to time. The program expires on December 31, 2027. The Company’s previous share repurchase authorizations expired on December 31, 2024.

In the three months ended June 30, 2025 and 2024, the Company repurchased 1.8 million and 15.2 million shares of its Class A common stock, respectively, for an aggregate purchase price of $176.7 million and $898.6 million, respectively. In the six months ended June 30, 2025 and 2024, the Company repurchased 3.0 million and 21.4 million shares of its Class A common stock, respectively, for an aggregate purchase price of $306.9 million and $1.3 billion, respectively. As of June 30, 2025, approximately $1.7 billion of the amount originally authorized for share repurchases in January 2025 remained available for future repurchases.