X0609 4 2026-05-21 0 0001834622 Hayward Holdings, Inc. HAYW 0001334802 Felice Stephen J false C/O HAYWARD HOLDINGS, INC. 1415 VANTAGE PARK DRIVE, SUITE 400 CHARLOTTE NC 28203 1 0 0 0 0 Common Stock 2026-05-21 4 A 0 16094 0 A 364333 D Represents restricted stock units granted to the Reporting Person. 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 on the earlier of (i) May 21, 2027 and (ii) the date of the 2027 annual meeting of stockholders of the Issuer, provided that the Reporting Person remains in continuous service with the Issuer's board of directors through the vesting date. /s/ Susan Canning, attorney-in-fact 2026-05-26