X0609 4 2026-06-06 0 0001834622 Hayward Holdings, Inc. HAYW 0001752466 Canning Susan M. false HAYWARD HOLDINGS, INC. 1415 VANTAGE PARK DRIVE, SUITE 400 CHARLOTTE NC 28203 0 1 0 0 SVP, CLO, Corporate Secretary 0 Common Stock 2026-06-06 4 A 0 71074 0 A 174911 D Represents an ad hoc retention award of restricted stock units granted to the Reporting Person under Hayward Holdings, Inc. 2021 Equity Plan (the "2021 Plan"). Each restricted stock unit represents the contingent right to receive one share of the Issuer's common stock, par value $0.001 per share. The restricted stock units vest in two equal installments, on each of June 6, 2029 and June 6, 2031 provided generally that the Reporting Person remains in continuous service with Issuer through the vesting date. /s/ Susan Canning 2026-06-08