Form DEFA14A QuidelOrtho Corp

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April 27, 2026 4:08 PM EDT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ý

Filed by a Party other than the Registrant ¨

Check the appropriate box:


¨						Preliminary Proxy Statement

¨						Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨						Definitive Proxy Statement

ý						Definitive Additional Materials

¨						Soliciting Material under §240.14a-12

QUIDELORTHO CORPORATION

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

No fee required.

Fee paid previously with preliminary materials.

Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

SEC Filings

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