144 0001529275 XXXXXXXX LIVE 0000026058 CTS Corporation 001-04639 4925 Indiana Ave Lisle IL 60532 630-577-8800 Ashish Agrawal Officer Common Merrill Lynch

1921 St Johns Ave Highland Park IL 60035

25000 1324250 29050000 02/02/2026 NYSE Common 02/06/2023 Stock Bonus CTS Corporation N 1182 02/06/2023 NA Common 02/11/2024 Stock Bonus CTS Corporation N 1287 02/11/2024 NA Common 02/10/2024 Stock Bonus CTS Corporation N 1342 02/10/2024 NA Common 02/09/2024 Stock Bonus CTS Corporation N 1039 02/09/2024 NA Common 02/10/2023 Stock Bonus CTS Corporation N 1288 02/10/2023 NA Common 02/10/2023 Stock Bonus CTS Corporation N 1343 02/10/2023 NA Common 02/09/2023 Stock Bonus CTS Corporation N 11080 02/09/2023 NA Common 02/07/2024 Stock Bonus CTS Corporation N 6439 02/07/2024 NA Y 02/02/2026 02/27/2025 Ashish Agrawal