Newtyn Management reports 5.3M shares (7.8%) in QuidelOrtho

QuidelOrtho Corporation beneficial ownership disclosure: Newtyn Management, LLC reports beneficial ownership of 5,300,000 shares of common stock, representing 7.8% of the class as of April 29, 2026.

Rhea-AI Filing Summary

QuidelOrtho Corporation beneficial ownership disclosure: Newtyn Management, LLC reports beneficial ownership of 5,300,000 shares of common stock, representing 7.8% of the class as of April 29, 2026. The filing states this total reflects holdings of Newtyn TE Partners, LP (3,418,500 shares) and Newtyn Partners, LP (1,881,500 shares), with the aggregate percentage calculated from approximately 68,081,767 shares outstanding as of February 11, 2026.

Key Figures

Newtyn Management beneficial ownership: 5,300,000 shares Newtyn TE Partners holdings: 3,418,500 shares Newtyn Partners holdings: 1,881,500 shares +3 more

6 metrics

Newtyn Management beneficial ownership 5,300,000 shares as of April 29, 2026 (aggregate holdings of NTE and NP)

Newtyn TE Partners holdings 3,418,500 shares as of April 29, 2026

Newtyn Partners holdings 1,881,500 shares as of April 29, 2026

Percent of class (Newtyn Management) 7.8% based on ~68,081,767 shares outstanding as of February 11, 2026

Percent of class (NTE) 5.0% NTE holdings of 3,418,500 shares

Shares outstanding used for basis 68,081,767 shares as of February 11, 2026, per Issuer 10-K

Key Terms

Schedule 13G/A, Beneficial ownership, Sole dispositive power, Joint Filing Agreement, +1 more

5 terms

Schedule 13G/A regulatory

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

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial ownership financial

"NTE held 3,418,500 shares of common stock (the "Common Stock")"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"Sole Dispositive Power 5,300,000.00"

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.

Joint Filing Agreement legal

"Exhibit 1 - Joint Filing Agreement, dated May 6, 2026"

CUSIP market

"CUSIP No.: 219798105"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

FAQ

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

What does Newtyn Management report for QDEL ownership?

Newtyn Management reports beneficial ownership of 5,300,000 shares (7.8%). The filing aggregates 3,418,500 shares held by Newtyn TE Partners and 1,881,500 shares held by Newtyn Partners, with percentages based on 68,081,767 shares outstanding as of February 11, 2026.

How much of QDEL does Newtyn TE Partners own?

Newtyn TE Partners holds 3,418,500 shares, equal to 5.0% of the common stock. This figure is reported as of April 29, 2026 and is included in Newtyn Management's aggregate beneficial ownership total.

What voting or disposition power does Newtyn Management claim?

Newtyn Management reports sole voting and sole dispositive power over the aggregate 5,300,000 shares. The filing identifies Newtyn Management as the investment manager to the underlying partnerships that hold the shares.

What is the share‑count basis for the ownership percentages?

Percentages are based on approximately 68,081,767 shares outstanding as of February 11, 2026. The filing cites the Issuer's Annual Report on Form 10‑K as the source of that outstanding share count.

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

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Accepted by SEC EDGAR 05/06/2026 - 04:20 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

QuidelOrtho Corporation

(Name of Issuer)

Common Stock

(Title of Class of Securities)

219798105

(CUSIP Number)

04/29/2026

(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 5,300,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,300,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,300,000.00

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)

7.8 %

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 3,418,500.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,418,500.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,418,500.00

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)

5.0 %

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 April 29, 2026, NTE held 3,418,500 shares of common stock (the "Common Stock") of QuidelOrtho Corporation (the "Issuer") and NP held 1,881,500 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 April 29, 2026, the Newtyn Management may be deemed to beneficially own the 5,300,000 shares of Common Stock of the Issuer held in the aggregate by NTE and NP. Beneficial ownership percentages are based upon approximately 68,081,767 million shares of Common Stock issued and outstanding as of February 11, 2026, based on information reported by the Issuer in its Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 19, 2026.
(b)	Address or principal business office or, if none, residence: The address for the Reporting Person is 60 East 42nd Street, 12th Floor, New York, NY 10165.
(c)	Citizenship: The Reporting Person is organized under the laws of the State of New York.
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 219798105
Item 4.	Ownership
(a)	Amount beneficially owned: Newtyn Management - 5,300,000.00 NTE - 3,418,500.00
(b)	Percent of class: Newtyn Management - 7.8 % NTE - 5.0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Newtyn Management - 5,300,000.00 NTE - 3,418,500.00
	(ii) Shared power to vote or to direct the vote: Newtyn Management - 0.00 NTE - 0.00
	(iii) Sole power to dispose or to direct the disposition of: 5 Newtyn Management - 5,300,000.00 NTE - 3,418,500.00
	(iv) Shared power to dispose or to direct the disposition of: Newtyn Management - 0.00 NTE - 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:	05/06/2026

Newtyn TE Partners, LP

Signature:	/s/ Eugene Dozortsev
Name/Title:	Eugene Dozortsev, Authorized Signatory of Newtyn Management, LLC, the Investment Manager
Date:	05/06/2026

Exhibit Information

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