CORNING INCORPORATED

Up to $2,000,000,000

Common Stock

We have entered into an equity distribution agreement (the "equity distribution agreement") with Goldman Sachs & Co. LLC, as our sales agent (the "sales agent"), relating to the sale of shares of our common stock, par value $0.50 per share (our "common stock"), offered by this prospectus supplement. In accordance with the terms of the equity distribution agreement, we may offer and sell common stock having an aggregate offering price of up to $2,000,000,000, from time to time through or to the sales agent, acting as our agent or principal.

Our common stock is listed on the New York Stock Exchange (the "NYSE") under the symbol "GLW." On September 8, 2026, the last reported sale price of our common stock was $165.96 per share.

Sales of our common stock, if any, under this prospectus supplement and the accompanying prospectus will be made in sales deemed to be "at the market offerings" as defined in Rule 415 promulgated under the Securities Act of 1933, as amended (the "Securities Act"), in ordinary brokers’ transactions, to or through a market maker, on or through the NYSE or any other market venue where the securities may be traded, in the over-the-counter market, in privately negotiated transactions, or through a combination of any such methods of sale. The sales agent may also sell our common stock by any other method permitted by law. The sales agent is not required to sell any specific amount of securities but, subject to the terms and conditions of the equity distribution agreement, has agreed to use its reasonable efforts consistent with its normal trading and sales practices to sell shares of our common stock up to the amount specified. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.

Under the equity distribution agreement, we may also sell common stock to the sales agent as principal for its own account, at a price to be agreed upon at the time of sale. If we sell common stock to the sales agent as principal, we will enter into a separate terms agreement with the sales agent, and we will describe the agreement in a separate prospectus supplement or pricing supplement.