Newtyn discloses 9.7% stake in QuidelOrtho

Rhea-AI Filing Summary

Newtyn Management, LLC and Newtyn TE Partners, LP report their beneficial ownership of QuidelOrtho Corporation common stock in this amended Schedule 13G. As of June 30, 2026, Newtyn Management may be deemed to beneficially own 6,625,000 shares, representing 9.7% of QuidelOrtho’s common stock outstanding.

Within this amount, Newtyn TE Partners directly holds 4,266,500 shares, or 6.3% of the class, and Newtyn Partners, LP holds the remaining 2,358,500 shares. The reporting persons state sole voting and dispositive power over their reported holdings, based on 68,190,989 shares outstanding as of April 28, 2026.

Key Figures

Newtyn Management shares: 6,625,000 shares Newtyn Management ownership: 9.7% Newtyn TE Partners shares: 4,266,500 shares +2 more

5 metrics

Newtyn Management shares 6,625,000 shares Beneficially owned QuidelOrtho common stock as of June 30, 2026

Newtyn Management ownership 9.7% Percent of QuidelOrtho common stock class

Newtyn TE Partners shares 4,266,500 shares Directly held QuidelOrtho common stock as of June 30, 2026

Newtyn TE Partners ownership 6.3% Percent of QuidelOrtho common stock class

Shares outstanding 68,190,989 shares QuidelOrtho common stock outstanding as of April 28, 2026

Key Terms

beneficially own, sole voting power, sole dispositive power, Schedule 13G

4 terms

beneficially own financial

"may be deemed to beneficially own these securities"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

sole voting power financial

"Sole Voting Power 6,625,000.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole Dispositive Power 6,625,000.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G regulatory

"This report on /A (as amended, this "13G") is being filed"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much of QuidelOrtho (QDEL) does Newtyn Management beneficially own?

Newtyn Management may be deemed to beneficially own 6,625,000 QuidelOrtho common shares, representing 9.7% of the outstanding stock. This includes shares held by Newtyn TE Partners and Newtyn Partners as of June 30, 2026.

What is Newtyn TE Partners’ ownership stake in QuidelOrtho (QDEL)?

Newtyn TE Partners directly holds 4,266,500 shares of QuidelOrtho common stock, equal to 6.3% of the class. These shares are part of the larger 6,625,000-share position reported by Newtyn Management.

What percentage of QuidelOrtho (QDEL) is outstanding according to this Schedule 13G/A?

The filing bases ownership percentages on 68,190,989 QuidelOrtho common shares issued and outstanding as of April 28, 2026. This share count comes from QuidelOrtho’s Form 10-Q filed on May 6, 2026.

Does Newtyn Management report sole voting power over its QuidelOrtho (QDEL) shares?

Yes. Newtyn Management reports sole voting power and sole dispositive power over 6,625,000 QuidelOrtho shares, with no shared voting or shared dispositive power indicated for these holdings.

What is the relationship between Newtyn Management and Newtyn TE Partners in this QDEL filing?

Newtyn Management is the investment manager to Newtyn TE Partners and Newtyn Partners. Because of this role, Newtyn Management may be deemed to beneficially own the QuidelOrtho shares held by both limited partnerships.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/14/2026 - 04:21 PM Accepted by SEC EDGAR 08/14/2026 - 04:15 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

QuidelOrtho Corporation

(Name of Issuer)

Common Stock

(Title of Class of Securities)

219798105

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 219798105

1

Names of Reporting Persons

Newtyn Management, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 6,625,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 6,625,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,625,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.7 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: See Item 2 for additional information.

SCHEDULE 13G

CUSIP Number(s): 219798105

1

Names of Reporting Persons

Newtyn TE Partners, LP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,266,500.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,266,500.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,266,500.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.3 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: See Item 2 for additional information.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: QuidelOrtho Corporation
(b)	Address of issuer's principal executive offices: 9975 Summers Ridge Road, San Diego, California 92121
Item 2.
(a)	Name of person filing: This report on Schedule 13G/A (as amended, this "13G") is being filed by (i) Newtyn Management, LLC, a New York limited liability company ("Newtyn Management"), and (ii) Newtyn TE Partners, LP, a Delaware limited partnership ("NTE", and collectively with Newtyn Management, the "Reporting Persons"). Newtyn Management is the investment manager to NTE and Newtyn Partners, LP, a Delaware limited partnership ("NP"). As of June 30, 2026, NTE held 4,266,500 shares of common stock (the "Common Stock") of QuidelOrtho Corporation (the "Issuer") and NP held 2,358,500 shares of Common Stock of the Issuer. Newtyn Management, as the investment manager to NTE and NP, may be deemed to beneficially own these securities. Accordingly, as of June 30, 2026, the Newtyn Management may be deemed to beneficially own the 6,625,000 shares of Common Stock of the Issuer held in the aggregate by NTE and NP. Beneficial ownership percentages are based upon approximately 68,190,989 shares of Common Stock issued and outstanding as of April 28, 2026, based on information reported by the Issuer in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on May 6, 2026.
(b)	Address or principal business office or, if none, residence: The address for the Reporting Persons is 60 East 42nd Street, 12th Floor, New York, NY 10165.
(c)	Citizenship: Newtyn Management is organized under the laws of the State of New York. NTE is organized under the laws of the State of Delaware.
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 219798105
Item 4.	Ownership
(a)	Amount beneficially owned: Newtyn Management, LLC - 6,625,000.00 Newtyn TE Partners, LP - 4,266,500.00
(b)	Percent of class: Newtyn Management, LLC - 9.7 % Newtyn TE Partners, LP - 6.3%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Newtyn Management, LLC - 6,625,000.00 Newtyn TE Partners, LP - 4,266,500.00
	(ii) Shared power to vote or to direct the vote: Newtyn Management, LLC - 0.00 Newtyn TE Partners, LP - 0.00
	(iii) Sole power to dispose or to direct the disposition of: Newtyn Management, LLC - 6,625,000.00 Newtyn TE Partners, LP - 4,266,500.00
	(iv) Shared power to dispose or to direct the disposition of: Newtyn Management, LLC - 0.00 Newtyn TE Partners, LP - 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Newtyn Management, LLC

Signature:	/s/ Eugene Dozortsev
Name/Title:	Eugene Dozortsev, Authorized Signatory
Date:	08/14/2026

Newtyn TE Partners, LP

Signature:	/s/ Eugene Dozortsev
Name/Title:	Eugene Dozortsev, Authorized Signatory of Newtyn Management, LLC, the Investment Manager
Date:	08/14/2026

Exhibit Information

Exhibit 1 - Joint Filing Agreement, dated May 6, 2026, by and among Newtyn Management, LLC and Newtyn TE Partners, LP.