Item 1A. RISK FACTORS

There have been no material changes to the risk factors disclosed in our annual report on Form 10-K for the year ended December 31, 2023.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

The following table discloses purchases of shares of our common stock made by us or on our behalf during the first quarter of 2024.

(a)The shares reported in this column include 158,604 shares related to our purchases of shares from our employees (including former employees) and non-employee directors in connection with the exercise of stock options, the vesting of restricted stock, and other stock compensation transactions in accordance with the terms of our stock-based compensation plans.

(b)The average price paid per share reported in this column excludes brokerage commissions and a one percent excise tax on share purchases.

(c)On September 15, 2023, we announced that our Board authorized us to purchase shares of our outstanding common stock for a total cost of up to $2.5 billion with no expiration date. As of March 31, 2024, we had $1.2 billion remaining available for purchase under the September 2023 Program. On February 22, 2024, our Board authorized us to purchase shares of our outstanding common stock for a total cost of up to $2.5 billion with no expiration date, which is in addition to the amount remaining under the September 2023 Program.