QuidelOrtho Corp — Director's Dealing 2026

Feb 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: QuidelOrtho Corp (QDEL)
CIK: 0001906324
Period of Report: 2026-01-29

Reporting Person: Siegrist Jonathan Philip (EVP of R&D & CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-29	Common Stock	A	2448	—	Acquired	14428	Direct
2026-01-29	Common Stock	F	1009	$27.41	Disposed	13419	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-01-29	Restricted Stock Units	$	M	2448	Disposed		Common Stock (2448)	Direct

Footnotes

F1: Reflects release of restricted stock units that were previously reported on a Form 4.

F2: Disposition of shares, as set forth above, was in connection with the Issuer's withholding of common shares to satisfy tax withholding obligations related to the issuance of common shares upon
release of restricted stock units.

F3: Each restricted stock unit represents the right to receive one share of QuidelOrtho Corporation common stock.

F4: 2,448 shares vested on January 29, 2026; the remaining 4,898 shares will vest in equal installments on January 29, 2027 and January 29, 2028.