X0609 4 2026-05-14 0 0001320461 Cooper-Standard Holdings Inc. CPS 0001212354 VAN OSS STEPHEN A false 40300 TRADITIONS DRIVE NORTHVIILLE MI 48168 1 0 0 0 0 Restricted Stock Units 2026-05-14 4 A 0 3937 0 A Common stock 3937 3937 D These are time-based restricted stock units (RSUs) granted to the reporting person on May 14, 2026, under Cooper-Standard Holdings Inc. 2021 Omnibus Incentive Plan, as amended and restated. The company, in its sole discretion, settles such RSU's by electing either to (i) make an appropriate book entry in the reporting person's name for a number of shares equal to the number of RSU's that have vested or (ii) deliver an amount of cash equal to the fair market value, determined as of the vesting date, of a number of shares equal to the number of RSU's that have vested. Subject to the reporting person's continued service as a director, these RSU's vest and are no longer subject to forfeiture on the earlier of the first anniversary of the grant date or the date of the first annual shareholders meeting of the company that occurs after the grant date, subject to the director's deferral election, if applicable. /s/ Denise Balog on behalf of Stephen A. Van Oss under power of attorney 2026-05-18