Brian J. Blaser - 19 Nov 2025 Form 4 Insider Report for QuidelOrtho Corp (QDEL)

Role: President and CEO
Signature: /s/ Euna Greene, attorney-in-fact for Brian J. Blaser
Issuer symbol: QDEL
Transactions as of: 19 Nov 2025
Net transactions value: +$501,577
Form type: 4
Filing time: 20 Nov 2025, 16:16:54 UTC
Previous filing: 19 May 2025
Next filing: 02 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Blaser Brian J.	President and CEO	9975 SUMMERS RIDGE ROAD, SAN DIEGO	/s/ Euna Greene, attorney-in-fact for Brian J. Blaser	20 Nov 2025	0001492289

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QDEL	Common Stock	Purchase	$501,577	+23,500	+390%	$21.34	29,533	19 Nov 2025	By Trust	F1
holding	QDEL	Common Stock						11,451	19 Nov 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The weighted average purchase price for these transactions was $21.3437 per share, with a range of $20.91 to $21.72 per share. Upon request, the Reporting Person hereby undertakes to provide to staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder, the full information regarding the number of shares purchased at each separate price.