8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): November 10, 2025

QUIDELORTHO CORPORATION

(Exact name of Registrant as specified in its Charter)

Delaware

001-41409

87-4496285

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

9975 Summers Ridge Road, San Diego, California 92121

(Address of principal executive offices, including zip code)

(858) 552-1100

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (see General Instruction A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

symbol(s)

Name of each exchange

on which registered

Common Stock, $0.001 Par Value

QDEL

The Nasdaq Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01

Regulation FD Disclosure.

On November 10, 2025, Brian J. Blaser, President and Chief Executive Officer of QuidelOrtho Corporation (the “Company”), will be providing a regular letter to stockholders providing an update on the results of the Company’s third quarter ended September 28, 2025. A copy of the letter is furnished with this Current Report on Form 8-K (“Form 8-K”) as Exhibit 99.1.

The information in this Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.

The following exhibit is furnished with this Form 8-K:


Exhibit Number		Description of Exhibit

99.1		Stockholder letter from Brian J. Blaser, President and Chief Executive Officer of QuidelOrtho Corporation.

104		Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL Document.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

The information set forth in this Form 8-K contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are any statement contained herein that is not strictly historical, including, but not limited to, QuidelOrtho’s commercial, integration and other strategic goals, financial guidance and related assumptions and other future financial condition and operating results, including expected results of operations or financial position, cost-savings and operational improvement initiatives, and other future plans, objectives, strategies, expectations and intentions. Forward-looking statements are based on the beliefs and expectations of QuidelOrtho’s management as of the date hereof and are subject to significant known and unknown risks and uncertainties. Actual results or outcomes may differ significantly from those set forth or implied in the forward-looking statements. You should not rely on forward-looking statements as predictions of future events because these statements are based on assumptions that may not come true and are speculative by their nature. All forward-looking statements are based on information currently available to QuidelOrtho and speak only as of the date hereof. QuidelOrtho undertakes no obligation to update any of the forward-looking information or time-sensitive information included in this Form 8-K, whether as a result of new information, future events, changed expectations or otherwise, except as required by law.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: November 10, 2025


QUIDELORTHO CORPORATION

By:		/s/ Joseph M. Busky
Name:		Joseph M. Busky
Its:		Chief Financial Officer

SEC Form 8-K filed by QuidelOrtho Corporation