DuPont de Nemours, Inc. reported that it has completed a 1-for-3 reverse stock split of its common stock through an amendment to its corporate charter. The company filed a Certificate of Amendment to its Third Amended and Restated Certificate of Incorporation with the Delaware Secretary of State on June 23, 2026. The amendment became effective at 12:01 a.m. Eastern Time on June 24, 2026. Under the amendment, every three shares of DuPont common stock were combined into one share. The company also reduced the number of authorized shares of its common stock by the same 1-for-3 ratio. DuPont said the reverse split and corresponding authorized-share reduction had already been approved by stockholders on May 21, 2026, and by the company’s Board of Directors on May 26, 2026. Immediately after filing the amendment, DuPont also filed a restated version of its Third Amended and Restated Certificate of Incorporation solely to incorporate the reverse-split amendment. That restated charter became effective at 12:02 a.m. Eastern Time on June 24, 2026. The company’s common stock will continue trading on the New York Stock Exchange under its existing ticker symbol, “DD.” Following the reverse stock split, DuPont’s common stock has a new CUSIP number: 26614N 201. The filing was made under Item 5.03, covering amendments to articles of incorporation or bylaws, and Item 3.03, covering material modifications to the rights of security holders. No stock price, fractional-share handling details, insider transactions, transaction codes, option awards, or post-transaction ownership figures were disclosed in the filing. The key corporate action is the charter amendment implementing the reverse stock split and proportionate reduction in authorized common shares.