8-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

CTS CORPORATION

(Exact name of Registrant as Specified in Its Charter)

(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:

☐Written communications 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 communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications 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:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Appointment of Chief Legal & Administrative Officer and Corporate Secretary

On July 1, 2025, CTS Corporation (the “Company”) appointed Mark Pacioni, age 59, as Chief Legal & Administrative Officer and Corporate Secretary, effective immediately.

Mr. Pacioni has over 30 years of legal experience, and most recently from April 2019 to June 2025 served as Chief Legal Officer and Secretary of CareerBuilder, LLC and its successor company, CareerBuilder + Monster, a global, end-to-end human capital solutions company. Prior to that Mr. Pacioni held senior legal roles at Knowles Corp., Molex, Inc., and the Boeing Co. Prior to Boeing, Mr. Pacioni was in private practice representing public companies on transactions and governance matters and also served as Special Counsel at the U.S. Securities and Exchange Commission. Mr. Pacioni holds a J.D. degree from Georgetown University School of Law and B.A. in International Relations from Georgetown University.

Mr. Pacioni will receive a compensation package that includes a base salary of $375,000, a target management incentive plan opportunity of 55% of base salary, a grant of 4,600 time-based restricted stock units (“RSUs”) that vest over a three-year period, a grant of 7,000 performance-based RSUs, the vesting of which is based on the achievement of certain financial objectives over a three-year period and participation in other benefit plans and programs made available to similarly situated executives.

Item 8.01 Other Events

On July 1, 2025, the Company issued a press release announcing the appointment of Mr. Pacioni as Chief Legal & Administrative Officer and Corporate Secretary. A copy of the press release is furnished as Exhibit 99.1 herewith.

Item 9.01 Financial Statements and Exhibits

(d): The following exhibits are being filed herewith:

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.

EX-99.1

CTS Corporation Announces the Appointment of Mark Pacioni as Chief Legal & Administrative Officer and Corporate Secretary

07/01/2025

Lisle, Ill. – CTS Corporation (NYSE: CTS) today announced that Mark Pacioni has been appointed Chief Legal & Administrative Officer and Corporate Secretary, effective July 1, 2025.

Prior to joining CTS, Mr. Pacioni served as Chief Legal Officer and Secretary of CareerBuilder, LLC from 2019 to 2024 and its successor company, CareerBuilder + Monster, from 2024 until June 2025. Prior thereto, he held senior legal roles at The Boeing Co., Molex, Inc., and Knowles Corp. In addition to his in-house experience, Mr. Pacioni was in private practice representing public companies on transactions and governance matters and was Special Counsel at the U.S. Securities and Exchange Commission. He is a graduate of Georgetown University, Georgetown University Law School, and the London School of Economics.

CTS Chairman and CEO, Kieran O’Sullivan stated, “Mark brings a wealth of experience in a broad range of environments. I'm confident he will be a strong contributor to CTS' future success as we continue to implement our global strategy and diversify our business.”

About CTS CTS (NYSE: CTS) is a leading designer and manufacturer of products that Sense, Connect, and Move. The company manufactures sensors, actuators, and electronic components in North America, Europe, and Asia, and provides engineered products to customers in the aerospace/defense, industrial, medical, telecommunications/IT, and transportation markets.

For more information, visit www.ctscorp.com.

Contact Ashish Agrawal Vice President and Chief Financial Officer

CTS Corporation 4925 Indiana Avenue Lisle, IL 60532 USA

Telephone: +1 (630) 577-8800 Email: ashish.agrawal@ctscorp.com