Results of Operations · Reg FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 24, 2024 ROGERS CORP ORATION (Exact name of registrant as specified in its charter) Massachusetts 1-4347 06-0513860 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 2225 W. Chandler Blvd. , Chandler , Arizona 85224 (Address of principal executive offices) (Zip Code) ( 480 ) 917-6000 Registrant’s telephone number, including area code Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below): ☐ Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communication pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communication pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))     Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, par value $1.00 per share ROG New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 2.02 Results of Operations and Financial Condition. Item 7.01 Regulation FD Disclosure. In a press release dated October 24, 2024, Rogers Corporation (the “Company”) announced its third quarter 2024 results. A copy of that press release is furnished herewith as Exhibit 99.1 and incorporated herein to these Items 2.02 and 7.01 by reference. All information in this Form 8-K and the Exhibits attached hereto, including guidance or any other forward-looking statements, speaks as of October 24, 2024, and the Company undertakes no duty to update this information to reflect subsequent events, actual results or changes in the Company’s expectations, unless required by law. The information in Items 2.02 and 7.01 of this Form 8-K and the Exhibits attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit No. Description 99.1 Press release issued by Rogers Corporation on October 24, 2024. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ROGERS CORPORATION (Registrant) Date: October 24, 2024 By: /s/ Laura Russell Laura Russell Vice President, Interim Chief Financial Officer and Treasurer Principal Financial Officer