QDEL on Nasdaq

Quidel

Logo: quidel.com5

American healthcare company

QuidelOrtho Corporation is an American manufacturer of diagnostic healthcare products that are sold worldwide. On May 8, 2020 the U.S. Food and Drug Administration (FDA) issued to Quidel the first emergency use authorization (EUA) for a COVID-19 rapid antigen test, a new category of tests for use in the ongoing pandemic. These diagnostic tests quickly detect fragments of proteins found on or within the virus by testing samples collected from the nasal cavity using swabs.3 Its shares trade on Nasdaq under the symbol QDEL.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1979Founded1

Compare with IDEXX Laboratories, Inc., Lantheus Holdings, Inc. or NeoGen, or pick any stock.

  • TickerQDEL on Nasdaq1
  • Industryhealth care industry1
  • HeadquartersSan Diego1
  • Websitewww.quidel.com
  • Business address9975 Summers Ridge Road, San Diego, Ca 921216
  • Filer categoryLarge accelerated filer6
  • Legal formCorporation4
  • LEI549300X2FQ6S98OQLQ464
  • StatusActive4
  • LEI statusLapsed (not renewed)4
  • Registered addressC/O REGISTERED AGENT SOLUTIONS, INC., 19904 Dover, United States4
  • Registered withDivision of Corporations, Department of State, 21300324
Quidel image from its website
Image: quidel.com5

QuidelOrtho Corporation is an American manufacturer of diagnostic healthcare products that are sold worldwide.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

-33.7%Operating margin9
-41.5%Net margin9
-1.9%Revenue growth, 20259
-58.9%Return on equity9
1.40×Debt to equity9
-$83.0MFree cash flow9

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

North America brought in 55% of the revenue Quidel broke down this way in fiscal 2025.

  1. North America$1.5B955%down 8% from 2024
  2. EMEA$360.7M913%up 7% from 2024
  3. China$334.7M912%up 3% from 2024
  4. JPAC$293.0M911%up 5% from 2024
  5. Latin America$252.9M99%up 13% from 2024
Business segments by year
Business segments202320242025
North America$1.9B$1.6B$1.5B
EMEA$327.3M$335.8M$360.7M
China$310.1M$325.0M$334.7M
JPAC$272.7M$279.4M$293.0M
Latin America$210.6M$222.9M$252.9M

Regions

Domestic Tax Jurisdiction brought in 53% of the revenue Quidel broke down this way in fiscal 2025.

  1. Domestic Tax Jurisdiction$1.4B953%down 8% from 2024
  2. Foreign Tax Jurisdiction$1.3B947%up 7% from 2024
Regions by year
Regions202320242025
Domestic Tax Jurisdiction$1.8B$1.6B$1.4B
Foreign Tax Jurisdiction$1.2B$1.2B$1.3B

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Research and development7¢$186.2M
  • Selling, general and admin27¢$746.3M
  • Other costs65¢$1.8B
  • Income tax1¢$24.1M

Out of $2.7B in revenue.9 The company lost money this year.

Where each dollar of operating cash went, fiscal 2025

  • Capital spending100¢$188.2M

Out of $105.2M of cash from operations. Spending exceeded cash from operations; the rest came from savings or borrowing.9

Financial statements

Revenue10119$2.7B in 2025+410% since 2019
0$1.0B$2.0B$3.0B2019: $534.9M$534.9M20192020: $1.7B$1.7B2020+211%2021: $1.7B$1.7B2021+2%2022: $1.7B$1.7B2022+0%2023: $3.0B$3.0B2023+76%2024: $2.8B$2.8B2024−7%2025: $2.7B$2.7B2025−2%
Gross profit10$1.3B in 2021+296% since 2019
0$500.0M$1.0B$1.5B2019: $320.8M$320.8M20192020: $1.3B$1.3B2020+320%2021: $1.3B$1.3B2021−6%
Operating income10119-$919.2M in 2025
-$2.0B-$1.0B0$1.0B$2.0B2019: $92.7M$92.7M20192020: $1.1B$1.1B2020+1044%2021: $906.1M$906.1M2021−15%2022: $906.0M$906.0M2022−0%2023: $139.1M$139.1M2023−85%2024: -$2.0B-$2.0B20242025: -$919.2M-$919.2M2025−53%
Net income10119-$1.1B in 2025
-$3.0B-$2.0B-$1.0B0$1.0B2019: $72.9M$72.9M20192020: $810.3M$810.3M2020+1011%2021: $704.2M$704.2M2021−13%2022: $704.2M$704.2M2022−0%2023: -$10.1M-$10.1M20232024: -$2.1B-$2.1B2024+20217%2025: -$1.1B-$1.1B2025−45%

Every line of the income statement as filed: the last 3 fiscal years, latest first.9

Period ending2025-12-312024-12-312023-12-31
Total revenues$2.7B$2.8B$3.0B
Cost of sales, excluding amortization of intangibles$1.5B$1.5B$1.5B
Selling, marketing and administrative$746.3M$766.8M$763.2M
Research and development$186.2M$218.7M$245.0M
Amortization of intangible assets$189.2M$203.4M$204.8M
Restructuring, integration and other charges$263.6M$127.2M$113.4M
Goodwill impairment charge$700.7M$1.8B$0
Asset impairment charge$9.7M$56.9M$4.5M
Other operating expenses$97.7M$51.8M$27.1M
Operating (loss) income-$919.2M-$2.0B$139.1M
Interest expense, net$177.6M$163.5M$147.6M
Loss on extinguishment of debt$5.1M$0$0
Other expense, net$5.8M$7.1M$20.6M
Loss before income taxes-$1.1B-$2.1B-$29.1M
Provision for (benefit from) income taxes$24.1M-$79.5M-$19.0M
Net loss-$1.1B-$2.1B-$10.1M
Basic loss per share-$16.69-$30.54-$0.15
Diluted loss per share-$16.69-$30.54-$0.15
Weighted-average shares outstanding - basic67.8M shares67.2M shares66.8M shares
Weighted-average shares outstanding - diluted67.8M shares67.2M shares66.8M shares

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Corporate structure

Quidel is part of a group headed by QuidelOrtho Corporation. 74 entities, 37 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Quidel

  • QuidelOrtho Corporation Dover, Delaware, United States
    • Quidel San Diego, California, United States
      • BioHelix Corporation Subsidiary · Massachusetts, United States
      • Branch of Ortho-Clinical Diagnostics Netherlands B.V. (Saudi Arabia branch) Subsidiary · Saudi Arabia
      • Crimson Germany GmbH Subsidiary · Germany
      • Crimson International Assets LLC Subsidiary · Delaware, United States
      • Diagnostic Hybrids, Inc. Subsidiary · Ohio, United States
      • Germany OCD Co GmbH Subsidiary · Germany
      • Germany OCD Holding GmbH & Co. KG Subsidiary · Germany
      • Immutopics, Inc. Subsidiary · California, United States
      • Micro Typing Systems, Inc. Subsidiary · Florida, United States
      • OCD Clinical Diagnostics Portugal, Unipessoal Lda Subsidiary · Portugal
      • OCD Investment Holdings B.V. Subsidiary · Netherlands
      • Orca Holdco 2, Inc. Subsidiary · Delaware, United States
      • Orca Holdco, Inc. Subsidiary · Delaware, United States
      • Ortho Clinical Diagnostics Biotechnology Development Shanghai Co. Ltd. Subsidiary · China
      • Ortho Clinical Diagnostics Do Brasil Produtos Para Saude Ltda. Subsidiary · Brazil
      • Ortho Clinical Diagnostics India Private Limited Subsidiary · India
      • Ortho-Clinical Diagnostics Subsidiary · United Kingdom
      • Ortho-Clinical Diagnostics (Thailand) Ltd. Subsidiary · Thailand
      • Ortho-Clinical Diagnostics Australia Pty Ltd. Subsidiary · Australia
      • Ortho-Clinical Diagnostics Australia Pty Ltd. (New Zealand branch) Subsidiary · New Zealand
      • Ortho-Clinical Diagnostics Chile SpA Subsidiary · Chile
      • Ortho-Clinical Diagnostics Colombia SAS Subsidiary · Colombia
      • Ortho-Clinical Diagnostics Czech s.r.o. Subsidiary · Czechia
      • Ortho-Clinical Diagnostics Denmark, filial af Ortho-Clinical Diagnostics Netherlands B.V. Subsidiary · Denmark
      • Ortho-Clinical Diagnostics Egypt for Trading & Importation LLC Subsidiary · Egypt
      • and 46 more
    • CRIMSON OCD (UK) LIMITED Subsidiary · Pencoed, United Kingdom

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Quidel reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Operating-lease assets (leased space)$155.5M9 Dec 28, 2025$168.7M9 Dec 29, 2024−7.8%

Real estate and locations

ItemLatestA year beforeChange
Countries it operates in1409 Dec 28, 202513016 Dec 29, 2024+7.7%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$169.8M9 Dec 28, 2025$98.3M9 Dec 29, 2024+72.7%
Marketable securities, current$016 Dec 29, 2024$48.4M16 Dec 31, 2023−100.0%
Marketable securities, non-current$016 Dec 29, 2024$7.4M16 Dec 31, 2023−100.0%

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$09 Dec 28, 2025$649.5M9 Dec 29, 2024−100.0%
Intangible assets, net (excluding goodwill)$2.6B9 Dec 28, 2025$2.7B9 Dec 29, 2024−6.3%
Finite-lived intangibles, gross$3.5B9 Dec 28, 2025$3.5B9 Dec 29, 2024+0.2%
Accumulated amortization$896.1M9 Dec 28, 2025$718.1M9 Dec 29, 2024+24.8%
Finite-lived intangibles, net$2.6B9 Dec 28, 2025$2.7B9 Dec 29, 2024−6.3%

Inventory

ItemLatestA year beforeChange
Inventory, total$577.6M9 Dec 28, 2025$533.7M9 Dec 29, 2024+8.2%
Raw materials$189.9M9 Dec 28, 2025$211.8M9 Dec 29, 2024−10.3%
Work in process$107.7M9 Dec 28, 2025$90.6M9 Dec 29, 2024+18.9%
Finished goods$289.0M9 Dec 28, 2025$291.6M9 Dec 29, 2024−0.9%

Properties, in its own words

At December 28, 2025, our material operating locations, which we define as the facilities we lease with more than 75,000 square feet plus all owned facilities with more than 20,000 square feet, were as follows:

Location · Status · Lease Term · SquareFootage · Primary Use

The rest of Item 2

Raritan, NJ · Owned · N/A · 569,000 · Administrative offices, R&D and manufacturing

Rochester, NY (513 Technology Blvd) · Owned · N/A · 438,628 · Manufacturing

San Diego, CA (Summers Ridge) · Leased · 2033 - options to extend for two additional 5-year periods · 316,531 · Administrative offices, sales and marketing, R&D and manufacturing (principal executive offices)

Rochester, NY (100 Indigo Creek) · Owned · N/A · 260,221 · Office, R&D

Pencoed, Wales (1) · Owned · N/A · 198,380 · Office, manufacturing

Athens, OH · Leased · 2027 · 149,240 · Administrative offices, sales and marketing, R&D and manufacturing

Carlsbad, CA (Rutherford) · Leased · 2036 - options to extend for two additional 5-year periods · 128,745 · Manufacturing

Memphis, TN · Leased · 2026 · 116,500 · Warehouse

San Diego, CA (Waples Ct.) · Leased · 2031 - options to extend for two additional 5-year periods · 106,412 · Office, light manufacturing, storage, packaging, assembly and distribution

Rochester, NY (130 Indigo Creek) · Owned · N/A · 103,138 · Office, R&D

Strasbourg, France · Owned · N/A · 97,951 · Warehouse, service

Rochester, NY (1000 Lee Road) · Leased · 2027 · 89,114 · Manufacturing

Pompano Beach, FL · Owned · N/A · 21,500 · Manufacturing

(1) In December 2024, the Company entered into an agreement for the expansion of the office building and manufacturing facility, which is expected to be complete and fully operational in early 2027.

We believe that our facilities are adequate for our current needs, and we currently do not anticipate any material difficulty in renewing any of our leases as they expire or securing additional or replacement facilities, in each case, on commercially reasonable terms. However, in anticipation of our growth strategy, we may pursue additional facilities.

Item 2 of the 10-K filed Feb 19, 2026.17

The story

Quidel was founded by Dr. David H. Katz, M.D., commencing operations in 1981 and launched its first products in 1984. Quidel Corporation was formed in 1991 when Quidel and Monoclonal Antibodies merged.

In 1988, Dr. Katz, a founder and chief scientific officer at Quidel, resigned to devote his energies to the Medical Biology Institute, a nonprofit research group in La Jolla, California that is closely allied with Quidel.

On June 18, 1997 Quidel settled a lawsuit with Becton Dickinson. Quidel had been accused of infringing patents on Becton's strep and chlamydia products. Quidel agreed to buy a product license and pay royalties on its product sales.

In 1999, Quidel acquired Metra Biosystems, Inc. to participate in bone health assessment. In 2000, Quidel acquired Litmus Concepts, Inc., a privately held in vitro diagnostic company.

In February 2004, Inverness Medical Innovations sued Quidel for patent infringement. That same month, Quidel countersued against Inverness.

In 2010, Quidel acquired Diagnostic Hybrids, Inc. a privately held in vitro diagnostic company. In 2013, Quidel acquired BioHelix Corporation, established in 2004, and was to pay $10 million to the BioHelix shareholders.

In May 2020, Quidel’s Sofia 2 SARS Antigen FIA has become the first COVID-19 rapid antigen test to be granted Emergency Use Authorization (EUA) by the FDA, approved by FDA director in charge of authorizing test EUAs, Tim Stenzel. Stenzel was also Quidel’s former Chief Science Officer who, while leading Quidel, oversaw the initial launch of the Sofia instrument.

In December 2021, Quidel announced it would acquire Ortho Clinical Diagnostics Holdings for $6 billion in cash and stock, increasing the range of COVID-19 antigen and antibody tests the business is able to offer.

Read the full text

In February 2024, CEO Douglas Bryant was fired, being replaced by Michael Iskra as interim CEO.

List of mergers and acquisitions

The following is an illustration of the company's major mergers and acquisitions and historical predecessors:

From Wikipedia’s article on QuidelOrtho, shared under CC BY-SA 4.0.7

Leadership

Who has led Quidel, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (60)

Products and brands

Quidel's current products fall generally into these categories: (1) lateral flow, where it focuses on infectious disease and reproductive health; (2) direct fluorescent antibodies (DFA), with expertise in infectious disease and virology; (3) micro-titer production, with a focus on bone and complement pathway markets; (4) fluorescent immunoassay products (Sofia); and (5) molecular diagnostic products.

These products include assays such as QuickVue, Thyretain and the new Sofia and AmpliVue brands, which focus on diagnosing influenza, thyroid disease, and many other diseases, and can improve the healthcare quality of hospitals.

During 2011, the US Food and Drug Administration (FDA) and the European Conformity Mark provided Quidel with 510(k) clearance for selling Sofia Analyzer, and another 510(k) clearance for the Quidel Molecular hMPV Assay.

From Wikipedia’s article on QuidelOrtho, shared under CC BY-SA 4.0.7

Subsidiaries and ownership

Parent company (GLEIF)

Subsidiaries (Exhibit 21)

  • BioHelix Corporation Massachusetts, United States8
  • Branch of Ortho-Clinical Diagnostics Netherlands B.V. (Saudi Arabia branch) Saudi Arabia8
  • Crimson Germany GmbH Germany8
  • Crimson International Assets LLC Delaware, United States8
  • Crimson OCD (UK) Limited United Kingdom8
  • Diagnostic Hybrids, Inc. Ohio, United States8
  • Germany OCD Co GmbH Germany8
  • Germany OCD Holding GmbH & Co. KG Germany8
  • Immutopics, Inc. California, United States8
  • Micro Typing Systems, Inc. Florida, United States8
  • OCD Clinical Diagnostics Portugal, Unipessoal Lda Portugal8
  • OCD Investment Holdings B.V. Netherlands8
  • Orca Holdco 2, Inc. Delaware, United States8
  • Orca Holdco, Inc. Delaware, United States8
  • Ortho Clinical Diagnostics Biotechnology Development Shanghai Co. Ltd. China8
  • Ortho Clinical Diagnostics Do Brasil Produtos Para Saude Ltda. Brazil8
  • Ortho Clinical Diagnostics India Private Limited India8
  • Ortho-Clinical Diagnostics United Kingdom8
  • Ortho-Clinical Diagnostics (Thailand) Ltd. Thailand8
  • Ortho-Clinical Diagnostics Australia Pty Ltd. Australia8
  • Ortho-Clinical Diagnostics Australia Pty Ltd. (New Zealand branch) New Zealand8
  • Ortho-Clinical Diagnostics Chile SpA Chile8
  • Ortho-Clinical Diagnostics Colombia SAS Colombia8
  • Ortho-Clinical Diagnostics Czech s.r.o. Czech Republic8
All 76 listed subsidiaries
  • Ortho-Clinical Diagnostics Denmark, filial af Ortho-Clinical Diagnostics Netherlands B.V. Denmark8
  • Ortho-Clinical Diagnostics Egypt Investment LLC Egypt8
  • Ortho-Clinical Diagnostics Egypt Services LLC Egypt8
  • Ortho-Clinical Diagnostics Egypt for Trading & Importation LLC Egypt8
  • Ortho-Clinical Diagnostics FinCo S.à r.l. Luxembourg8
  • Ortho-Clinical Diagnostics FinCo S.à r.l. (Barbados branch) Barbados8
  • Ortho-Clinical Diagnostics FinCo S.à r.l. (US branch) New York, United States8
  • Ortho-Clinical Diagnostics France SAS France8
  • Ortho-Clinical Diagnostics GmbH Germany8
  • Ortho-Clinical Diagnostics GmbH (Austria branch) Austria8
  • Ortho-Clinical Diagnostics GmbH (Swiss branch) Switzerland8
  • Ortho-Clinical Diagnostics Holdings Luxembourg S.à r.l. Luxembourg8
  • Ortho-Clinical Diagnostics Italy S.r.l. Italy8
  • Ortho-Clinical Diagnostics K.K. Japan8
  • Ortho-Clinical Diagnostics Limited Liability Company Russia8
  • Ortho-Clinical Diagnostics Luxembourg S.à r.l. Luxembourg8
  • Ortho-Clinical Diagnostics Medical Technology (Changsha) Co., Ltd. China8
  • Ortho-Clinical Diagnostics Mexico Operations S. de R.L. de C.V. Mexico8
  • Ortho-Clinical Diagnostics Mexico Services S. de R.L. de C.V. Mexico8
  • Ortho-Clinical Diagnostics NV Belgium8
  • Ortho-Clinical Diagnostics NV (Dutch branch) Netherlands8
  • Ortho-Clinical Diagnostics Netherlands B.V. Netherlands8
  • Ortho-Clinical Diagnostics Netherlands BV (Puerto Rico branch) Puerto Rico8
  • Ortho-Clinical Diagnostics Norway (branch of Ortho-Clinical Diagnostics Netherlands B.V.) Norway8
  • Ortho-Clinical Diagnostics Panama Export S.A. Panama8
  • Ortho-Clinical Diagnostics Panama S.A. Panama8
  • Ortho-Clinical Diagnostics Philippines Inc. Philippines8
  • Ortho-Clinical Diagnostics S.à r.l. Luxembourg8
  • Ortho-Clinical Diagnostics Singapore Pte. Ltd. Singapore8
  • Ortho-Clinical Diagnostics Singapore Pte. Ltd. (Korea branch) South Korea8
  • Ortho-Clinical Diagnostics Spain, S.L. Spain8
  • Ortho-Clinical Diagnostics Sweden AB Sweden8
  • Ortho-Clinical Diagnostics Switzerland GmbH Switzerland8
  • Ortho-Clinical Diagnostics Trading (China) Co. Ltd. China8
  • Ortho-Clinical Diagnostics Trading (China) Co. Ltd. (Beijing branch) China8
  • Ortho-Clinical Diagnostics Trading (China) Co. Ltd. (Hangzhou branch) China8
  • Ortho-Clinical Diagnostics U.S. FinanceCo I, LLC Delaware, United States8
  • Ortho-Clinical Diagnostics, Inc. New York, United States8
  • Quidel Cardiovascular Inc. Delaware, United States8
  • Quidel Corporation Delaware, United States8
  • Quidel Diagnostics India Private Limited India8
  • Quidel France SARL France8
  • Quidel Germany, GmbH Germany8
  • Quidel Hong Kong, Ltd. Hong Kong8
  • Quidel International, LLC Delaware, United States8
  • Quidel Ireland Limited Ireland8
  • Quidel Italy SRL Italy8
  • Quidel Services, LLC Delaware, United States8
  • QuidelOrtho Canada Corporation Canada8
  • QuidelOrtho Health Operational Services Limited Company Turkey8
  • QuidelOrtho Regional Headquarters Company Saudi Arabia8
  • QuidelOrtho Sales Company, LLC Delaware, United States8

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record. The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Former names

  • Coronado Topco, Inc.Jan 31, 2022 to Apr 11, 20226

Timeline

  1. Sep 23, 20268-K Entered a material agreement87
  2. Aug 6, 20268-K Results of operations88
  3. Jun 23, 20268-K Executive or director change; Regulation FD disclosure89
  4. Jun 16, 20268-K Shareholder vote90
  5. May 5, 20268-K Results of operations91
  6. Apr 15, 20268-K Results of operations92
  7. Mar 24, 20268-K Executive or director change; Regulation FD disclosure93
  8. Feb 13, 20268-K Executive or director change94
  9. Feb 11, 20268-K Results of operations95
  10. Feb 5, 20268-K Executive or director change96
  11. Nov 10, 20258-K Regulation FD disclosure97
  12. Nov 5, 20258-K Results of operations98
  13. May 16, 2024New chief executive Brian J. Blaser becomes CEO19
  14. Feb 29, 2024New chief executive Michael S. Iskra becomes CEO18
  15. Jul 6, 2022Parent Directly consolidated by QuidelOrtho Corporation4
  16. Feb 4, 2009New chief executive Douglas C. Bryant becomes CEO21
  17. Mar 23, 2006New chief executive Caren L. Mason becomes CEO22
  18. 1979Founded Founded1

Calendar

Coming up

  1. Nov 3, 2026 · After the closeReports results for the quarter ending Sep/2026 A year earlier it reported $0.80 a share, on Nov 5, 2025.99

When it reported results

  1. Aug 6, 2026Reported quarterly or annual results88
  2. May 5, 2026Reported quarterly or annual results91
  3. Apr 15, 2026Reported quarterly or annual results92
  4. Feb 11, 2026Reported quarterly or annual results95
  5. Nov 5, 2025Reported quarterly or annual results98
  6. Aug 5, 2025Reported quarterly or annual results100
  7. May 7, 2025Reported quarterly or annual results101
  8. Feb 12, 2025Reported quarterly or annual results102

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

603 filings to the SEC since October 2021: 7 annual reports, 15 quarterly reports, 67 major events, 393 insider forms, 57 large holders, 64 other. The latest 20:

  1. Oct 7, 2026SCHEDULE 13G/A EDGAR
  2. Sep 23, 20268-K EDGAR
  3. Sep 17, 20264 EDGAR
  4. Aug 18, 20264 EDGAR
  5. Aug 14, 2026SCHEDULE 13G/A EDGAR
  6. Aug 14, 2026SCHEDULE 13G/A EDGAR
  7. Aug 13, 2026SCHEDULE 13G EDGAR
  8. Aug 7, 202610-Q EDGAR
  9. Aug 6, 20268-K EDGAR
  10. Aug 5, 2026SCHEDULE 13G/A EDGAR
  11. Jul 16, 20264 EDGAR
  12. Jul 15, 20263 EDGAR
  13. Jul 13, 2026S-8 EDGAR
  14. Jul 8, 2026SCHEDULE 13G EDGAR
  15. Jul 2, 20264 EDGAR
  16. Jun 29, 20264 EDGAR
  17. Jun 29, 20264 EDGAR
  18. Jun 29, 20264 EDGAR
  19. Jun 29, 20264 EDGAR
  20. Jun 29, 20264 EDGAR

The 603 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

55 open-market trades by officers, directors and large owners since October 2021: 11 buys and 44 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Feb 13, 2026Blaser Brian J.President and CEOBuy10,540$23.59$248.6KForm 4
Feb 13, 2026Busky Joseph M.Chief Financial OfficerBuy3,370$23.66$79.7KForm 4
Feb 13, 2026Busky Joseph M.Chief Financial OfficerBuy3,370$23.66$79.7KForm 4
Feb 13, 2026Strobeck MatthewDirectorBuy10,000$23.96$239.6KForm 4
Dec 10, 2025RHOADS ANN DDirectorBuy750$28.28$21.2KForm 4
Nov 26, 2025Wilkins Joseph D Jr.DirectorBuy370$27.96$10.3KForm 4
Nov 25, 2025WIDDER KENNETH JDirectorSale4,026$27.81$112.0KForm 4
Nov 24, 2025Busky Joseph M.Chief Financial OfficerBuy4,770$26.06$124.3KForm 4
Nov 21, 2025POLAN MARY LAKE PH DDirectorBuy1,000$22.43$22.4KForm 4
Nov 19, 2025Blaser Brian J.President and CEOBuy23,500$21.34$501.5KForm 4
Dec 11, 2024Blaser Brian J.President and CEOBuy6,033$41.42$249.9KForm 4
Nov 21, 2024TC Group Cayman Investment Holdings Sub L.P.10% ownerSale8,260,183$35.31$291.7MForm 4
Aug 9, 2024TC Group Cayman Investment Holdings, L.P.10% ownerSale74,134$41.53$3.1MForm 4
Aug 8, 2024TC Group Cayman Investment Holdings, L.P.10% ownerSale106,705$41.07$4.4MForm 4
Aug 7, 2024TC Group Cayman Investment Holdings, L.P.10% ownerSale78,180$39.94$3.1MForm 4
Aug 6, 2024Carlyle Group Inc.10% ownerSale86,972$40.23$3.5MForm 4
Aug 5, 2024Carlyle Group Inc.10% ownerSale118,172$40.37$4.8MForm 4
Aug 2, 2024TC Group Cayman Investment Holdings Sub L.P.10% ownerSale169,467$42.10$7.1MForm 4
Aug 1, 2024TC Group Cayman Investment Holdings Sub L.P.10% ownerSale234,935$41.52$9.8MForm 4
Jul 31, 2024Carlyle Partners VI Cayman Holdings, L.P.10% ownerSale164,877$39.10$6.4MForm 4

All 55 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025Brian J. BlaserPresident and CEO61$1.0M$11.3M118
2025Joseph M. BuskyCFO$680.0K$5.4M118
2025Michelle A. HodgesFormer CLO$625.0K$3.5M118
2025Philip D. McLellanCOO$515.0K$2.0M118
2025Jonathan P. SiegristEVP of R&D and CTO$575.0K$1.8M118
2024Brian J. BlaserPresident and CEO61$634.6K$15.0M118
2024Joseph M. BuskyCFO$593.2K$4.7M118
2024Michelle A. HodgesFormer CLO$539.9K$3.3M118
2024Jonathan P. SiegristEVP of R&D and CTO$117.2K$2.7M118
2024Philip D. McLellanCOO$407.3K$1.6M118
2023Joseph M. BuskyCFO$569.2K$2.9M118
2023Michelle A. HodgesFormer CLO$514.1K$1.8M118

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.11,202,523$196.2M0.0%+753,396
Fmr LLC7,363,696$129.0M0.0%+772,544
Newtyn Management, LLC6,625,000$116.0M14.5%+2,066,528
Vanguard Portfolio Management LLC4,135,464$72.4M0.0%+103,696
Neuberger Berman Group LLC3,534,619$62.1M0.0%+2,004,205
Invesco Ltd.3,473,432$60.8M0.0%+355,963
American Century Companies Inc3,307,079$57.9M0.0%+450,947
Rubric Capital Management LP3,306,281$57.9M0.5%No change
Vanguard Capital Management LLC3,070,054$53.8M0.0%+17,344
State Street Corp2,978,639$52.2M0.0%+192,018
Paradigm Capital Management Inc/ny2,521,700$44.2M1.2%+995,800
Private Management Group Inc2,070,391$36.3M1.0%+685,622
Geode Capital Management, LLC1,834,237$32.1M0.0%+119,038
Morgan Stanley1,675,525$29.3M0.0%+652,015
Segall Bryant & Hamill, LLC1,345,530$23.6M0.3%−197,880
Dimensional Fund Advisors LP1,253,683$22.0M0.0%−1,795,085
Allianz Asset Management GmbH1,126,225$19.7M0.0%+119,888
Goldman Sachs Group Inc1,064,744$18.6M0.0%−1,347,667
Rice Hall James & Associates, LLC1,063,559$18.6M0.9%+37,139
Gagnon Securities LLC1,030,371$18.0M3.5%+627,046
Charles Schwab Investment Management Inc1,018,104$17.8M0.0%+188,045
Aqr Capital Management LLC911,115$16.0M0.0%+736,395
Buckley Capital Advisors, LLC850,335$14.9M9.3%New
Northern Trust Corp751,078$13.2M0.0%+61,284
Millennium Management LLC722,480$12.7M0.0%+440,263

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

1 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Jul 12, 2023Daniel S. GoldmanDemocratic, HouseSale$1,001 - $15,000+157.1%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

SEC filer profile

How Quidel is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARQuidelOrtho Corp2
  • CIK0001906324
  • Employer ID (EIN)87-449628517
  • Filer statusLarge accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company17
  • Incorporated inDelaware17
  • Fiscal year endsJanuary 12
  • Industry code (SIC)2835 In Vitro & In Vivo Diagnostic Substances2
  • SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance2
  • Business address9975 Summers Ridge Road, San Diego, CA 921212
  • Phone(858) 552-11002
  • Shares outstanding68,575,427 as of Jul 29, 202613
  • Public float$1.9B as of Jun 27, 202517
  • AuditorKPMG LLP, Short Hills, New Jersey PCAOB ID 185; it also attests to the company’s internal control over financial reporting17
  • On EDGAR sinceJan 31, 20222
  • Filings499 in all: 4 (301), 8-K (51), 3 (30), SCHEDULE 13G/A (19), 10-Q (13), SC 13G/A (12), SCHEDULE 13G (8), SC 13D/A (7)2
    All 31 form types

    4/A (6), 144 (5), 10-K (4), ARS (4), DEF 14A (4), DEFA14A (4), SC 13G (4), SD (4), CORRESP (3), S-8 (3), 424B3 (2), 8-K/A (2), S-4/A (2), UPLOAD (2), 10-K/A (1), 8-K12B (1), 8-K12B/A (1), EFFECT (1), FWP (1), S-3ASR (1), S-4 (1), S-8 POS (1), SC 13D (1)

  • Latest filingsAnnual report (10-K) Feb 19, 2026
    Quarterly report (10-Q) Aug 7, 2026
    Proxy statement (DEF 14A) Apr 27, 2026
    Latest 8-K (8-K) Sep 23, 2026

Securities registered for trading

ClassSymbolExchange
Common stock, $0.001 par valueQDELThe Nasdaq Stock Market

From the cover page of the 10-K filed Feb 19, 2026 (Section 12(b) of the Exchange Act).17

Risk factors and legal proceedings

The risks Quidel names in Item 1A of its 10-K filed Feb 19, 2026: 48 risks under these headings, as written.17

  • Risks Relating to Our Business, Strategy and Operations
  • The industry and market segments in which we operate are highly competitive, and our failure to compete effectively could adversely affect our sales and results of operations.
  • In order to remain competitive and profitable, we must expend considerable resources to identify and successfully develop new technologies, products and services and develop new markets, and there is no assurance our efforts will be successful or such technologies, products and services or markets will be commercially viable or accepted.
  • Global market, macroeconomic and geopolitical conditions may adversely affect our operations and performance.
  • Fluctuations or a decline in sales of our respiratory products could materially and adversely affect our operating results.
  • A significant portion of our total revenues are from a relatively small number of customers, and if we fail to retain or expand our customer relationships or significant customers terminate or do not renew their contracts, our business, operating results and financial condition could be adversely affected.
  • Interruptions and delays in the supply of raw materials, components, equipment and other products and services could adversely affect our operations and financial results.
  • We may experience manufacturing or warehousing problems or delays due to, among other reasons, our volume, specialized processes, natural disasters, public health crises and macroeconomic and geopolitical conditions.
  • Our collaboration arrangements may not operate according to our business strategy and if we are unable to maintain our collaboration arrangements, or if these collaboration arrangements are not successful, our results of operations could be materially adversely affected.
  • A decrease in the number of surgical procedures performed, and the resulting decrease in blood demand, could negatively impact our financial results.
  • Our reagent rental model reduces our cash flows during the initial part of the applicable contract, which causes our cash flows to fluctuate from quarter to quarter.
  • We may not achieve anticipated market acceptance of our products by customers and this would have a negative effect on future sales.
The other 37 risks
  • The healthcare industry and related industries that we serve have undergone, and are in the process of undergoing, significant changes, including staffing constraints and efforts to reduce costs, which could adversely affect our business, financial condition and results of operations.
  • Consolidation of our customer base, the formation of group purchasing organizations and government-sponsored tendering processes could materially adversely affect our sales and results of operations.
  • We may engage in strategic transactions, including acquisitions, investments, joint ventures, licensing arrangements and other strategic relationships, undertake strategic restructurings or divest, spin-off or discontinue certain business operations, and may not successfully identify or consummate these strategic transactions; therefore, we may not realize the anticipated benefits of these transactions, if any.
  • We have been incorporating AI into our internal operations and may incorporate AI into our products and services. Implementation of AI and machine learning technologies may result in legal and regulatory risks, reputational harm or have other adverse consequences to our business.
  • Risks Relating to Our International Operations
  • As a global business, we face risks relating to our non-U.S. operations and international sales, including inherent macroeconomic, geopolitical and regulatory risks, that could impact our financial performance, cause interruptions in our current business operations and impede our growth strategy.
  • Currency translation risk and currency transaction risk may adversely affect our financial condition, results of operations and cash flows.
  • Risks Relating to Our IT Systems
  • Our ability, or that of our providers or third-party collaboration partners, to protect our information systems in our IT and product systems, and personal and confidential information, including from data corruption, cyber-attacks, security breaches or IT errors, is critical to the success of our business.
  • Interruptions to our third-party IT service providers and/or the inability of our digital solutions to interoperate with certain operating systems could impair the delivery of our cloud-based solutions and negatively impact our business.
  • Risks Relating to Our Intellectual Property
  • To remain competitive, we must continue to develop, obtain and protect proprietary technology rights; otherwise, we may lose market share or need to reduce prices as a result of competitors selling lower priced or technologically superior products or services that compete with ours.
  • Intellectual property risks, third-party claims of infringement, misappropriation or violation of proprietary rights and other claims against us could adversely affect our ability to market our products and services, require us to redesign our products or services or attempt to seek licenses from third parties, and materially adversely affect our operating results. In addition, the defense of such claims could result in significant costs and divert the attention of our management and other key employees.
  • Risks Relating to Government Regulation
  • Regulation of Our Industry and Products
  • Some of our respiratory products were authorized by the FDA through an EUA and the loss of such authorization could have a material adverse effect on our business, results of operations, financial position and cash flows.
  • If we are unable to obtain or maintain required clearances or approvals for the commercialization of our products in the U.S. and certain foreign countries where we intend to sell our products, we will not be able to sell those products in such jurisdictions, which could negatively impact our results of operations.
  • If the results of clinical studies required to gain regulatory approval to sell our products are not available when expected, or do not demonstrate the safety and effectiveness of those products, we may be unable to obtain regulatory approval and sell those products.
  • Disruptions at the FDA and other government agencies, including disruptions caused by funding shortages or statutory, regulatory or policy changes, could hinder their ability to hire, retain or deploy key leadership and other personnel, prevent them from performing normal business functions on which the operation of our business may rely, or otherwise prevent new or modified products from being developed, cleared, approved or commercialized in a timely manner or at all, which could negatively impact our business.
  • We may encounter challenges entering into contracts with government entities due to government-sponsored tendering requirements, and any contracts that we have entered into or will enter into with government entities may involve future funding, compliance and penalties risks.
  • If one or more of our products is claimed to be defective or does not comply with applicable regulations, we could be subject to claims of liability and harm to our reputation that could adversely affect our business.
  • We are subject to healthcare laws and regulations that could result in liability, require us to change our business practices and restrict our operations in the future.
  • Certain Other Regulations Relating to Our Business
  • We use hazardous materials in our business that may result in substantial compliance costs or claims against us relating to handling, storage or disposal.
  • We are exposed to significant risks in relation to compliance with anti-bribery and anti-corruption laws and regulations and economic sanctions programs.
  • Our collection, use and disclosure of personal information, including health information, and confidential information is subject to federal and state privacy, data security and data protection regulations, as well as privacy, data security and data protection laws outside the U.S., including in the EEA, the U.K. and China, and our failure to comply with those laws and regulations or to adequately secure this information could result in significant liability or reputational harm.
  • We are subject to U.S. and foreign tax laws, and changes to such tax laws or differing interpretation of those laws by the relevant governmental authorities could adversely affect us.
  • Risks Relating to Corporate Finance
  • We may need to raise additional funds to finance our future capital or operating needs or other business purposes, which could have adverse consequences on the interests of our stockholders, and may not be available on acceptable terms or at all.
  • Our indebtedness could adversely affect our financial condition, limit our ability to raise additional capital to fund our operations and prevent us from fulfilling our obligations under our indebtedness.
  • We may not be able to generate sufficient cash flows from operating activities to service all of our indebtedness and may be forced to take other actions to satisfy our obligations under our indebtedness, which may not be successful.
  • The terms of the Credit Agreement impose restrictions that may limit our current and future operating flexibility, particularly our ability to respond to changes in the economy or our industry or to take certain actions, which could harm our long-term interests and may limit our ability to make payments on our indebtedness.
  • Risks Relating to Our Employees
  • We may have difficulty attracting, motivating and retaining executives and other key employees.
  • If we are required to make unexpected payments to any defined benefit plans or other post-employment benefit plans (“Benefit Plans”) applicable to our employees, our financial condition may be adversely affected.
  • We are subject to work stoppages, union negotiations, labor disputes and other matters associated with our labor force, which may adversely impact our operations and cause us to incur incremental costs.
  • General Risk Factors
  • We are subject to, and may in the future become subject to, disputes, claims and litigation that could result in significant expenses and could ultimately result in an unfavorable outcome for us.
  • Expectations of our performance related to sustainability matters, or the reporting of such matters, may impose additional costs on us and expose us to new risks.
  • We are exposed to business risk which, if not fully covered by insurance, could have an adverse effect on our results of operations.
  • Some provisions of our Charter, our Bylaws and Delaware law may make takeover attempts difficult, which could depress the price of our common stock and inhibit our stockholders’ ability to receive a premium price for their shares.
  • Our Bylaws designate the Court of Chancery of the State of Delaware (the “Court of Chancery”) as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, employees or agents.
  • The market price of our common stock may be volatile.
  • Future sales of our common stock by us or our stockholders in the public market, or the perception that such sales may occur, could reduce the price of our common stock, and any additional capital raised by us through the sale of equity or convertible securities may dilute ownership in the Company.
  • If we fail to develop or maintain an effective system of internal controls, we may not be able to accurately report our financial results or prevent fraud. As a result, stockholders could lose confidence in our financial reporting, which would harm our business and the trading price of our common stock.

Legal proceedings

The information set forth in Part II, Item 8, “Financial Statements and Supplementary Data—Note 13. Commitments and Contingencies—Litigation and Other Legal Proceedings” is incorporated herein by reference.

The opening of Item 3, Legal Proceedings.17

Sources

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