Capital World Investors Acquires 5.9% Stake in Align Technology, Inc. (ALGN)

Capital World Investors (CWI), a division of Capital Research and Management Company (CRMC), has filed a Schedule 13G indicating a new substantial ownership stake in Align Technology, Inc. (ALGN). As of the event date on March 31, 2026, CWI reported beneficial ownership of 4,218,560 shares of common stock, representing approximately 5.9% of the shares outstanding. The filing specifies that CWI holds sole dispositive power over all 4,218,560 shares and sole voting power over 4,197,473 shares. This position was established in the ordinary course of business, as CWI operates as an investment adviser. The investment management entities under the CWI umbrella collectively provide services that result in this deemed beneficial ownership. This filing marks a significant entry for the investment group into Align Technology, a leading medical device company known for its Invisalign system, as the previous reported ownership was zero.