SCHEDULE 13D 0001479348 XXXXXXXX LIVE Common Stock, no par value 02/19/2026 true 0000830616 78402S108 SCI Engineered Materials, Inc.

2839 Charter Street Columbus OH 43228

Charles Kohnen 937-681-6848 5424 Spice Bush Court Dayton OH 45429 0001479348 Charles Kohnen PF N X1 316000 48000 316000 48000 364000 N 8.12 IN Note to Rows (8) and (10): The Reporting Person shares voting and dispositive power over 48,000 shares of the Issuer's common stock with his wife, Angela Kohnen. Note to Row (13): Percentage ownership is based on 4,483,407 shares of common stock outstanding as of February 16, 2026, as reported by the Issuer in its Annual Report on Form 10-K for the year ended December 31, 2025, as filed with the Securities and Exchange Commission on February 17, 2026. Common Stock, no par value SCI Engineered Materials, Inc. 2839 Charter Street Columbus OH 43228 This Schedule 13D is being filed by Charles Kohnen. Mr. Kohnen is sometimes referred to herein as the "Reporting Person." Mr. Kohnen's address is: 5424 Spice Bush Court, Dayton, Ohio 45429 Mr. Kohnen's principal occupation is private investor. During the last five years, Mr. Kohnen has not been convicted of a criminal proceeding (excluding traffic violations or similar misdemeanors). During the last five years, Mr. Kohnen has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activity subject to, federal or state securities laws or finding any violations with respect to such laws. Mr. Kohnen is a citizen of the United States. Mr. Kohnen has acquired an aggregate of 364,000 shares of the Issuer's common stock (sometimes referred to herein as the "Shares"). Mr. Kohnen acquired the Shares with personal funds, in open market transactions at prevailing prices. No funds were borrowed or obtained from any third party in connection with the acquisition of the securities. Mr. Kohnen purchased the Common Shares described herein for investment purposes, in his regular course of business, and without the intent of changing or influencing control of the Issuer. Accordingly, Mr. Kohnen has previously reported his beneficial ownership of the Shares on Schedule 13G. As with his other investments, Mr. Kohnen continuously evaluates the Issuer, its business, prospects and general market conditions. Mr. Kohnen is in the process of engaging in communications with the Issuer's Board of Directors (the "Board"), management, other stockholders, and other relevant parties regarding the Issuer's operations, governance, strategic opportunities and other matters. These evaluations and discussions may materially affect, and result in Mr. Kohnen: (1) acquiring or disposing of Shares, whether through open-market transactions, privately negotiated transactions or otherwise; (2) proposing changes in the Issuer's operations, business, governance or capitalization; or (3) pursuing one or more of the other actions described in any of the matters referred to in paragraphs (a) through (j), inclusive, of the instructions to Item 4 of Schedule 13D. The Reporting Person is currently the beneficial owner of 364,000 shares of common stock of the Issuer, representing approximately 8.12% of the Issuer's common stock (based on 4,483,407 shares of Common Stock outstanding as of February 16, 2026, as reported by the Issuer in its Annual Report on Form 10-K for the year ended December 31, 2025, as filed with the Securities and Exchange Commission on February 17, 2026). The Reporting Person has sole voting and dispositive power over 316,000 of the Shares identified in response to Item 5(a) above. The Reporting Person shares voting and dispositive power with his wife, Angela Kohnen, over 48,000 Shares identified in response to Item 5(a) above The Reporting Person has not effected any transaction involving shares of Common Stock of the Issuer during the past 60 days. The Reporting Person's spouse has the right to receive and the power to direct the receipt of dividends from, and sales proceeds of, 48,000 shares of Common Stock owned jointly by the Reporting Person and his spouse. Other than as set forth in this Item 5(d), no other person other than Mr. Kohnen has the sole right to receive or the power to direct the receipt of dividends from, and sales proceeds of, the shares of Common Stock Not applicable To the knowledge of the Reporting Person, except for the matters described in this Schedule 13D, there is no contract, arrangement, understanding or relationship (legal or otherwise) between the Reporting Person and any other person with respect to any securities of the Issuer. Not applicable. Charles Kohnen /s/ Charles Kohnen 02/19/2026